Consulta: creatorFacets:"Berge, Jean-pascal"
Registros recuperados: 44
Data/hora: 11/06/2024 05:37:52

Water ratio effect on the proteins hydrolysis tongue sole by-products (Cynoglossus senegalensis)
Provedor de dados: 5
Autores: Sylla, K. S. B.; Musabyemariya, B.; Berge, Jean-pascal; Seydi, Mg.
In this study the effectiveness of four different water ratio to hydrolyze sole by-products by using Protamex® were compared. Average proteins yields and degree of hydrolysis (DH %) of different hydrolysates were measured, and their peptide profiles were analysed by using gel filtration chromatography. It was found that by changing the hydrolysis conditions it was possible to produce hydrolysates with the same proportion of proteins (60%) and very different in peptide composition (from 294 to 13700 Da).
Tipo: Text
Palavras-chave: Coproduits; Eau; Hydrolyse enzymatique; Protéines; By-products; Water; Enzymatic hydrolysis; Proteins.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00015/12620/9505.pdf

Ultrasound-assisted extraction of R-phycoerythrin from Grateloupia turuturu with and without enzyme addition
Provedor de dados: 5
Autores: Le Guillard, Cecile; Dumay, Justine; Donnay-moreno, Claire; Bruzac, Sandrine; Ragon, Jean-yves; Fleurence, Joel; Berge, Jean-pascal.
The aim of this study was to compare two processes for the extraction of R-phycoerythrin (R-PE) from the red seaweed Grateloupia turuturu: ultrasound-assisted extraction (UAE) and ultrasound-assisted enzymatic hydrolysis (UAEH). Process efficiencies were both evaluated by the yield of R-PE extraction and by the level of liquefaction. Experiments were conducted at 40 and 22 °C, for 6 h, using an enzymatic cocktail and an original ultrasonic flow-through reactor. R-PE appeared very sensitive to temperature, thus 22 °C is strongly recommended for its extraction by UAEH or UAE. However, the higher processing temperature (40 °C) clearly increased the extraction of water-soluble compounds (up to 91% of liquefaction).  These two new processes are thus promising...
Tipo: Text
Palavras-chave: Seaweed; Grateloupia turuturu; R-phycoerythrin; Ultrasound-assisted extraction; Ultrasound-assisted enzymatic hydrolysis; Liquefaction.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00292/40332/39993.pdf

General introduction about by-products, worldwide situation and French focus
Provedor de dados: 5
Autores: Perez-galvez, Raul; Berge, Jean-pascal.
Introduction : A direct consequence of traditional fishing practices is the considerable quantities of wastes and byproducts that are generated. They represent an economical and environmental problem since not all obtained from the sea is adequately used but thrown back into the sea as a waste. With the aim of classifying and quantifying the by-products, three main groups are considered: discards, wastage on board and by-products and wastage on shore.
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7409.PDF

Processing fish press waters using metallic and ceramic filtration
Provedor de dados: 5
Autores: Perez-galvez, Raul; Guadix, Emilia M.; Berge, Jean-pascal; Guadix, Antonio.
BACKGROUND  The press juices resulting from a compacting operation on fish by-products were subjected to a depuration treatment in order to reduce the high COD (120 g O2 L–1). The process included an initial de-particulation step by means of two metallic filter cartridges of 465 µm and 250 µm, followed by concentration with a 200 nm ultrafiltration ceramic membrane. The polishing efficiency of each unit was assessed in terms of COD and protein removal. RESULTS  Dead-end metallic filtration of the press waters reduced their suspended matter content by 28%, but achieved only 5.6% decrease in chemical oxygen demand (COD), which suggested further processing by membrane ultrafiltration. The de-particulated stream was then subjected to ultrafiltration for 8 h in...
Tipo: Text
Palavras-chave: Membranes; Waste-water; Bioseparations; Filtration.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00156/26701/24791.pdf

Sensory and aromatic characteristics of tongue sole by-products hydrolysates (Cynoglossus senegalensis)
Provedor de dados: 5
Autores: Sylla, K. S. B.; Berge, Jean-pascal; Prost, Carole; Musabyemariya, B.; Seydi, Mg.
Tongue sole by-products coming from fish-filleting plant were hydrolyzed by Protamex® protease. To identify the future application of hydrolysates, a sensory analysis was carried out.The sensory profile was performed with a jury of 14 specialized judges.11 profiles were found by this panel of tasting. In addition, the aromatic characterization revealed that 57 molecules are responsible for these odours described in sensory analysis.The description of these aromatic compounds opens potential way of valorization of these hydrolysates in human and animal consumption.
Tipo: Text
Palavras-chave: Hydrolyse enzymatique; Co-produits; Arôme; Enzymatic hydrolysis; By-products; Aroma.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00003/11428/7976.pdf

Seasonal Variation of Lipids and Fatty Acids of the Microalgae Nannochloropsis oculata Grown in Outdoor Large-Scale Photobioreactors
Provedor de dados: 5
Autores: Olofsson, Martin; Lamela, Teresa; Nilsson, Emmelie; Berge, Jean-pascal; Del Pino, Victoria; Uronen, Pauliina; Legrand, Catherine.
While focus in oil-producing microalgae is normally on nutrient deficiency, we addressed the seasonal variations of lipid content and composition in large-scale cultivation. Lipid content, fatty acid profiles and mono- di- and triglycerides (MAGs, DAGs, and TAGs) were analyzed during May 2007-May 2009 in Nannochloropsis oculata grown outdoors in closed vertical flat panels photobioreactors. Total lipids (TL) ranged from 11% of dry weight (DW) in winter to 30% of DW in autumn. 50% of the variation in TL could be explained by light and temperature. As the highest lipid content was recorded during autumn indicating an optimal, non-linear, response to light and temperature we hypothesize that enhanced thylakoid stacking under reduced light conditions resulted...
Tipo: Text
Palavras-chave: Biodiesel; Microalgae; Seasonal variation; Nannochloropsis oculata; Large-scale; Lipids; Fatty acids; Light; Temperature.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00085/19582/17206.pdf

Seasonal variation of physical, chemical and sensory characteristics of sea bream (Sparus aurata) reared under intensive conditions in Southern Europe
Provedor de dados: 5
Autores: Cardinal, Mireille; Cornet, Josiane; Donnay-moreno, Claire; Gouygou, Jean-paul; Berge, Jean-pascal; Rocha, E.; Soares, S.; Escorcio, C.; Borges, P.; Valente, L. M. P.
This study describes the variability of important quality traits in gilthead sea bream produced under intensive conditions in Southern Europe and purchased in a French market (Nantes). Chemical, sensory and histological characteristics were performed on 18 samples delivered over a year. All fish presented far lower dioxin and DL-PCBs or heavy metals concentrations than the maximum limit level set by EC Regulation, being totally safe for human consumption. Fat content and nutritional values reflected by n-3 and n-6 polyunsaturated fatty acids (PUFA) levels were parameters with high variability according to the season or the fish farm. Values of n-3 PUFA ranged from 0.9% to 8.6% and those of n-6 PUFA from 9.3% to 16.6%, corresponding to a respective...
Tipo: Text
Palavras-chave: Quality parameters; Sea bream; Sparus aurata; Farmed fish; Chemical composition; Fatty acids; Sensory evaluation; Histological characteristics.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00016/12757/9691.pdf

Fractionation of fish protein hydrolysates by ultrafiltration and nanofiltration: impact on peptidic populations
Provedor de dados: 5
Autores: Bourseau, Patrick; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, Maryse; Masse, Anthony; Guerard, Fabienne; Chabeaud, Aurélie; Fouchereau-peron, Martine; Le Gal, Yves; Ravallec-ple, Rosenn; Berge, Jean-pascal; Picot, Laurent; Piot, Jean -marie; Batista, Ireneu; Thorkelsson, Gudjon; Delannoy, Charles; Jakobsen, Greta; Johansson, Inger.
The production by enzymatic treatment of fish protein hydrolysates (FPH) is a promising route to add value to fisheries proteinic co-products (fish frames, heads etc.). Indeed, FPH possess good nutritional properties and biological activities for food and feed uses. Pressure-driven membrane separations such as ultrafiltration (UF) and nanofiltration (NF) can be used after the hydrolysis to, increase the specific activities of the FPH. This paper discusses the impact of a two-step UF/NF process producing four different fractions on two industrial FPH with different hydrolysis degrees. Fractionation is carried out in "realistic" conditions for an industrial process, on highly concentrated FPH solutions (about 100 g of dry matter/L) at a high volume reduction...
Tipo: Text
Palavras-chave: Peptidic profile; Fractionation process; Membrane separation; Nanofiltration; Ultrafiltration; FPH; Fish protein hydrolysate.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6653.pdf

Lipid composition of the liver oil of the ray, Himantura bleekeri
Provedor de dados: 5
Autores: Le Nechet, Sandrine; Dubois, Nolwenn; Gouygou, Jean-paul; Berge, Jean-pascal.
If rays are traditionally fished for their caudal fins, the rest of the body is wasted, except part of the skin that can be transformed into leather. Liver oil of the ray, Himantura bleekeri, was characterized in terms of lipid class composition and fatty acid profile. Liver oil content was high and represented 54% of the liver weight (w/w). Neutral lipids were predominant (92%), major components being triacylglycerols (63%). Other neutral lipids identified were hydrocarbons, sterol esters, mono- and di-acylglycerols, free fatty acids, sterols and glyceryl ethers. Polyunsaturated fatty acids of the n-3 series, namely eicosapentaenoic and docosahexaenoic acids, were high (4% and 16%, respectively). Cholesterol was the major component in the sterol fractions...
Tipo: Text
Palavras-chave: Sterol; Squalene; DHA; EPA; PUFA; Lipids; Fatty acids; Ray liver oil.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3129.pdf

Convenient preparation of picolinyl derivatives from fatty acid esters
Provedor de dados: 5
Autores: Dubois, Nolwenn; Barthomeuf, Chantal; Berge, Jean-pascal.
It is essential to have simple rapid methods for the determination of fatty acid structures. Traditionally, fatty acids are analysed by gas chromatography using their methyl ester derivatives (FAME). However, their corresponding mass spectra exhibit molecular ions but are usually devoid of ions indicative of structural features and, notably, the position of double bounds on the aliphatic chains [1]. In the most useful approach to structure determination, the carboxyl group is derivatised with a reagent containing a nitrogen atom. Recently, a convenient method for preparing picolinyl esters from intact lipids has been published [2]. However, some problems occurred in our laboratory when this method was used, leading to some modifications and optimisation....
Tipo: Text
Palavras-chave: Sensitivity; Sterol esters; Fatty acid methyl esters; Gas chromatography; Mass spectrometry; Picolinyl esters.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2125.pdf

Effect of diets containing tuna head hydrolysates on the survival and growth of shrimp Penaeus vannamei
Provedor de dados: 5
Autores: Nguyen, Thi-my-huong; Perez-galvez, Raul; Berge, Jean-pascal.
A feeding trial was conducted to evaluate the effect of the supplementation of hydrolysates from tuna head on the survival and growth of Penaeus vannamei. To this end, a feeding trial was performed on eleven groups of shrimps of average weight 4.34 g. Every group was distributed into three tanks (30 shrimps per tank of 150 L) and was fed with one of the following eleven diets, all of them containing 40% crude protein: one diet containing tuna head meal as the principal protein source, which was used as control diet; nine diets formulated by replacing 50% tuna head meal by ﬁsh protein hydrolysates (FPH), and ﬁnally one commercial diet chosen as a reference. FPH were obtained by hydrolysis of tuna head during 2, 3 or 6 h and ulterior centrifugation in order...
Tipo: Text
Palavras-chave: Tuna; Head; Fish protein hydrolysates; Growth of shrimp.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00064/17517/15138.pdf

Operation and cleaning of ceramic membranes for the filtration of fish press liquor
Provedor de dados: 5
Autores: Perez-galvez, Raul; Guadix, Emilia M.; Berge, Jean-pascal; Guadix, Antonio.
This paper assesses the performance of three ceramic membranes of average pore size 50 nm, 200 nm and 1.4 tan in the treatment of the press liquor resulting from a compaction operation of sardine by-products. To this end, 2 L of pre-filtered press liquor with an average protein content of 44 g/L were filtered during 3 h through the three membranes assayed. Unexpectedly, the membrane of larger pore size, presented the lowest values for the flux of permeate at steady state at 20 L/(m(2) h), while its average protein rejection (77%) was similar to that observed in the membrane of 200 nm. This fact was attributed to the difference in material of its active layer (a-alumina instead of zirconite). The cleaning efficiency of the membranes was assessed by the COD...
Tipo: Text
Palavras-chave: Fish processing; Ceramic membranes; Ultrafiltration; Fouling; Cleaning.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00052/16290/14084.pdf

Elements for optimizing a one-step enzymatic bio-refinery process of shrimp cuticles: Focus on enzymatic proteolysis screening
Provedor de dados: 5
Autores: Baron, Regis; Socol, Marius; Kaas, Raymond; Arhaliass, A.; Rodriguez Del Pino, J.; Le Roux, Karine; Donnay-moreno, Claire; Berge, Jean-pascal.
This article complements an earlier work published in 2015 Baron et al. (2015) that showed the interest of a shrimp shells bio-refining process. We compare here the effect of eleven commercial proteases at pH 3.5 or 4.0 on a residual amount of shrimp shells proteins after 6 hours at 50 °C. The two pH are obtained when respectively 40 and 25 mmol of formic acid are added to 5 g of mild dried shell. Deproteinisation yield above 95% are obtained. Residual amino acids profile in the solid phase was identical for the eleven proteases except for pepsin which was similar to the raw material profile. A significant relative increase in the proportion of Glycine is observed for the ten other cases. Likewise, shapes of size exclusion chromatograms of the dissolved...
Tipo: Text
Palavras-chave: Bio-refinery; Shrimp cuticles; Acidic enzymatic proteolysis.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00388/49957/50530.pdf

Influence of hydrolysis time on protein recovery and amino acid composition of hydrolysates from Sepia officinalis viscera
Provedor de dados: 5
Autores: Soufi-kechaou, Emna; Jaouen, Pascal; Ben Amar, Raja; Berge, Jean-pascal.
Enzymatic hydrolysis of cuttlefish viscera by Protamex, Pepsin, Delvolase and Multifect Neutral was investigated in a batch reactor during 6 hours with an hourly sampling. The influence of the enzyme used and the hydrolysis conditions (operating pH, temperature) was studied with regards to the extent of proteolytic degradation and to molecular weight distribution of the peptides. After 360 min of hydrolysis, cuttlefish viscera treated with Pepsin yielded significantly (p &lt; 0.05) higher protein recoveries compared to the substrate autolysed or treated with other external proteases. However, the amino acid composition showed that this was Protamex hydrolysis which gave the highest percentage of essential amino acids. At least, according to the FPLC...
Tipo: Text
Palavras-chave: Enzymatic hydrolysis; Cuttlefish Protein Hydrolysates (CPH); Cuttlefish By-Products (CBP); Essential Amino Acids (EAA); Protein recovery.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00114/22508/20191.pdf

Enzymatic Hydrolysis of Yellowfin Tuna (Thunnus albacares) By-Products Using Protamex Protease
Provedor de dados: 5
Autores: Nguyen, Thi-my-huong; Sylla, Khalifa Serigne Babacar; Randriamahatody, Zo; Donnay-moreno, Claire; Moreau, Jacques; Luyen Thi Tran,; Berge, Jean-pascal.
Long-term proteolysis of tuna by-products (head, viscera and tail) by the wide spectrum protease Protamex has been investigated and compared. After hydrolysis, two fractions (soluble aqueous phase and insoluble sludge) were collected. Chemical compositions of each fraction and molecular mass distributions of soluble peptides were determined. Degrees of hydrolysis obtained after 12 h of hydrolysis of head, viscera and tail were 32.3, 16.8 and 22.2 %, respectively. Nitrogen recovery in the soluble fractions was 73.6 % for the head, 82.7 % for the viscera and 85.8 % for the tail. Lipid distribution indicated that the majority of lipids remained in the sludge. Such proteolysis appears useful for the production of very different fractions: one rich in peptides...
Tipo: Text
Palavras-chave: Tuna; By-products; Proteolysis; Nitrogen recovery; Fish protein hydrolysates.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00030/14142/14042.pdf

Authenticating the origin of different shrimp products on the Tunisian markets by PCR/RFLP method
Provedor de dados: 5
Autores: Besbes, Nadia; Jerome, Marc; Berge, Jean-pascal; Sadok, Saloua.
This study describes a polymerase chain reaction using restriction fragment length polymorphism (PCR-RFLP) assay based on the 16S rRNA mitochondrial gene to identify commercial food products of wide range of Penaeidae and Pandalidae shrimp species commercialised in the Tunisian market. Phylogenetic analyses on 16S rRNA mitochondrial gene were used to study the relationships among the considered species. Penaeidae shrimp species was easily differentiated and confirmed by direct sequencing, showing a genetic distance of 0.34 with respect to Pandalidae species. A rapid and reliable PCR method using restriction fragment length polymorphism (RFLP) with three restriction enzymes (HpyCH4III/ MboI / AluI) was optimized for unambiguous differentiation of shrimp...
Tipo: Text
Palavras-chave: Shrimps; Species identification; 16S rRNA mtDNA; PCR-RFLP.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00303/41445/40637.pdf

Mild processing techniques and development of functional marine protein and peptide ingredients
Provedor de dados: 5
Autores: Thorkelsson, G; Sigurgisladottir, S; Geirsdottir, M; Jóhannsson, R; Guerard, Fabienne; Chabeaud, Aurelie; Bourseau, Patrick; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, M; Fouchereau-peron, Martine; Martinez Alvarez, Oscar; Le Gal, Yves; Ravallec-ple, Rozenn; Picot, Laurent; Berge, Jean-pascal; Delannoy, Charles; Jakobsen, Greta; Johansson, I; Batista, Ireneu.
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00056/16747/14184.pdf

Optimization of hydrolysis of sardine (Sardina pilchardus) heads with Protamex: enhancement of lipid and phospholipid extraction
Provedor de dados: 5
Autores: Dumay, Justine; Allery, Marion; Donnay-moreno, Claire; Barnathan, Gilles; Jaouen, Pascal; Carbonneau, Marie Elise; Berge, Jean-pascal.
BACKGROUND: Fish by-products are not considered as valuable raw materials even if they usually contain valuable components such as lipids. Fish lipids are well known for their nutritional potential and health effects but their extraction remains problematic due to the use of organic solvents. Enzymatic hydrolysis such as the proteolysis of tissues can lead to lipid extraction. RESULTS: Hydrolysis of sardine heads by Protamex was studied (temperature, hydrolysis time and enzyme-substrate ratio) using response surface methodology in order to obtain the highest release of lipids and particularly phospholipids. No relation between the degree of hydrolysis and lipid recovery were depicted; however, optimum conditions for both the release of lipids and...
Tipo: Text
Palavras-chave: Response surface methodology; Proteolysis; Sardine; By product; Fatty acids; Phospholipids.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6651.pdf

Combined Effects of Nitrogen Concentration and Seasonal Changes on the Production of Lipids in Nannochloropsis oculata
Provedor de dados: 5
Autores: Olofsson, Martin; Lamela, Teresa; Nilsson, Emmelie; Berge, Jean-pascal; Del Pino, Victoria; Uronen, Pauliina; Legrand, Catherine.
Instead of sole nutrient starvation to boost algal lipid production, we addressed nutrient limitation at two different seasons (autumn and spring) during outdoor cultivation in flat panel photobioreactors. Lipid accumulation, biomass and lipid productivity and changes in fatty acid composition of Nannochloropsis oculata were investigated under nitrogen (N) limitation (nitrate:phosphate N:P 5, N:P 2.5 molar ratio). N. oculata was able to maintain a high biomass productivity under N-limitation compared to N-sufficiency (N:P 20) at both seasons, which in spring resulted in nearly double lipid productivity under N-limited conditions (0.21 g L−1 day−1) compared to N-sufficiency (0.11 g L−1 day−1). Saturated and monounsaturated fatty acids increased from 76% to...
Tipo: Text
Palavras-chave: Microalgae; Outdoor; Nannochloropsis; Large-scale; Lipids; Fatty acids; Nitrogen manipulation; Seasonal changes; Biofuels; High value products.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00184/29564/27902.pdf

Enzyme-assisted extraction (EAE) for the production of antiviral and antioxidant extracts from the green seaweed Ulva armoricana (Ulvales, Ulvophyceae)
Provedor de dados: 5
Autores: Hardouin, Kevin; Bedoux, Gilles; Burlot, Anne-sophie; Donnay-moreno, Claire; Berge, Jean-pascal; Nyvall-collen, Pi; Bourgougnon, Nathalie.
In order to develop innovative methods for the production of bioactive extracts with potential health benefits, enzyme-assisted extraction has been applied for the bioconversion of Ulva armoricana (Ulvales, Ulvophyceae). The extraction yields, chemical composition, the antioxidant and antiviral activities were determined to assess the efficiency of six commercial enzymatic preparations. Endo-protease treatments significantly increased the extraction yields compared to the control. The organic matter, neutral sugar and protein contents were increased in all extracts compared to an extraction with water, up to 2.0-fold, 2.7-fold and 1.75-fold, respectively. The samples prepared by a multiple-mix of glycosyl-hydrolases and an exo-β-1,3(4)-glucanase revealed...
Tipo: Text
Palavras-chave: Ulvan; Antiviral activity; Carbohydrate; Endo-protease; Bioconversion; Biorefinery.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00321/43187/45542.pdf

Odor Modification in Salmon Hydrolysates Using the Maillard Reaction
Provedor de dados: 5
Autores: Kouakou, Christelle; Berge, Jean-pascal; Baron, Regis; Lethuaut, Laurent; Prost, Carole; Cardinal, Mireille.
The aim of this work was to study the effect of adding sugar during proteolysis to promote the Maillard reaction and mask the initial fish odor and off-flavors generated. An experimental design, based on the Doehlert plan, was used to study the influence of hydrolysis conditions (time, temperature, sugar, and antioxidant addition) on the odor characteristics of hydrolysates, soluble protein levels, and amino acid content. Results showed that the lowest level of sugar (10g of D-xylose added to 1kg of by-products) was enough to develop a grilled odor in hydrolysates. In the hydrolysis conditions used, i.e. enzyme inactivation at 95°C for 30min, hydrolysis temperature had no effect on grilled odor production but significantly affected the soluble protein...
Tipo: Text
Palavras-chave: Salmon by-product; Hydrolysate; Maillard reaction; Sensory characteristics; Off-flavor; Soluble protein.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00156/26702/24778.pdf

Improvement of lipid and phospholipid recoveries from sardine (Sardina pilchardus) viscera using industrial proteases
Provedor de dados: 5
Autores: Dumay, Justine; Donnay-moreno, Claire; Barnathan, G; Jaouen, P; Berge, Jean-pascal.
Enzymatic hydrolysis of sardine viscera by three broad spectrum proteases was investigated using the pHstat method (24 h, pH 8, 50 degrees C). After hydrolysis, three fractions (sludge, aqueous phase and oily phase) were collected. For each fraction, lipids and phospholipids were quantified and molecular weights of aqueous phase peptides were determined. Under these conditions, the degree of hydrolysis (DH) varied from 1.9% (Flavourzyme), 3.1% (Protamex) and to 3.3% (Alcalase). Dry matter distribution indicated that all hydrolysis performed increased solubilisation of proteins: protein recovery for each hydrolysis ranged from 57.4% to 61.2%. Furthermore, the total lipid content in the liquid parts (oily and aqueous phases) increased (at least 85% of lipids...
Tipo: Text
Palavras-chave: Fish protein hydrolysate FPH; Sardine; By product; Lipid; Hydrolysis; Phospholipid.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2004.pdf

Utilisation des sous-produits de la pêche et de l'aquaculture pour l'alimentation en aquaculture
Provedor de dados: 5
Autores: Penven, Anais; Baron, Regis; Etienne, Monique; Delannoy, Charles; Berge, Jean-pascal.
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00607/71938/70635.pdf

Gene-associated markers provide tools for tackling illegal fishing and false eco-certification
Provedor de dados: 5
Autores: Nielsen, Einar E.; Cariani, Alessia; Mac Aoidh, Eoin; Maes, Gregory E.; Milano, Ilaria; Ogden, Rob; Taylor, Martin; Hemmer-hansen, Jakob; Babbucci, Massimiliano; Bargelloni, Luca; Bekkevold, Dorte; Diopere, Eveline; Grenfell, Leonie; Helyar, Sarah; Limborg, Morten T.; Martinsohn, Jann T.; Mcewing, Ross; Panitz, Frank; Patarnello, Tomaso; Tinti, Fausto; Van Houdt, Jeroen K. J.; Volckaert, Filip A. M.; Waples, Robin S.; Carvalho, Gary; Albin, Jan Ej; Vieites Baptista, Juan M; Barmintsev, Vladimir; Bautista, Jose M.; Bendixen, Christian; Berge, Jean-pascal; Blohm, Dietmar; Cardazzo, Barbara; Diez, Amalia; Espineira, Montserrat; Geffen, Audrey J.; Gonzalez, Elena; Gonzalez-lavin, Nerea; Guaniero, Ilaria; Jerome, Marc; Kochzius, Marc; Krey, Grigorius; Mouchel, Olivier; Negrisolo, Enrico; Piccinetti, Corrado; Puyet, Antonio; Rastorguev, Sergey; Smith, Jane P; Trentini, Massimo; Verrez-bagnis, Veronique; Volkov, Alexander; Zanzi, Antonella.
Illegal, Unreported and Unregulated fishing has had a major role in the overexploitation of global fish populations. In response, international regulations have been imposed and many fisheries have been 'eco-certified' by consumer organizations, but methods for independent control of catch certificates and eco-labels are urgently needed. Here we show that, by using gene-associated single nucleotide polymorphisms, individual marine fish can be assigned back to population of origin with unprecedented high levels of precision. By applying high differentiation single nucleotide polymorphism assays, in four commercial marine fish, on a pan-European scale, we find 93-100% of individuals could be correctly assigned to origin in policy-driven case studies. We show...
Tipo: Text
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00090/20085/17722.pdf

Enzymatic hydrolysis combined to membranes for upgrading seafood by-products
Provedor de dados: 5
Autores: Bourseau, Patrick; Chabeaud, Aurélie; Vandanjon, Laurent; Masse, Anthony; Jaouen, Pascal; Fleurence, Joël; Berge, Jean-pascal.
This review reports some interesting works on the recovery and fractionation by membrane techniques of marine compounds resulting from hydrolysis of fish by-products such as proteins or peptides, lipids or fatty acids, and carbohydrates. Ultrafiltration (UF) appears as the most widely used technique for such applications. It must be noted that only a few works deal with the optimization or the enhancement of processes for the recovery of added value molecules. Indeed, most of works use UF as a convenient and simple tool for solute fractionation, for this reason the influence of operating parameters on membrane separation efficiency is unfortunately seldom considered. When attention is paid in a study to the process development, it is specified in this...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7408.pdf

Enzymatic hydrolysis of cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) viscera using commercial proteases: Effects on lipid distribution and amino acid composition
Provedor de dados: 5
Autores: Kechaou, Emna; Durnay, Justine; Donnay-moreno, Claire; Jaouen, Pascal; Gouygou, Jean-paul; Berge, Jean-pascal; Ben Arnar, Raja.
Total lipid and phospholipid recovery as well as amino acid quality and composition from cuttlefish (Sepia officinalis) and sardine (Sardina pilchardus) were compared. Enzymatic hydrolyses were performed using the three proteases Protamex, Alcalase, and Flavourzyme by the pH-stat method (24 h, pH 8, 50 degrees C). Three fractions were generated: an insoluble sludge, a soluble aqueous phase, and an oily phase. For each fraction, lipids, phospholipids, and proteins were quantified. Quantitative and qualitative analyses of the raw material and hydrolysates were performed. The degree of hydrolysis (DH) for cuttlefish viscera was 3.2% using Protamex, 6.8% using Flavourzyme, and 7% using Alcalase. DH for sardine viscera was 1.9% (using Flavourzyme), 3.1% (using...
Tipo: Text
Palavras-chave: Sardine; Viscera; Proteolysis; Marine lipids; Cuttlefish; By products.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6366.pdf

Impact of ultrafiltration and nanofiltration of an industrial fish protein hydrolysate on its bioactive properties
Provedor de dados: 5
Autores: Picot, Laurent; Ravallec, Rozenn; Fouchereau-peron, Martine; Vandanjon, Laurent; Jaouen, Pascal; Chaplain-derouiniot, Maryse; Guerard, Fabienne; Chabeaud, Aurelie; Legal, Yves; Martinez Alvarez, Oscar; Berge, Jean-pascal; Piot, Jean-marie; Batista, Irineu; Pires, Carla; Thorkelsson, Gudjon; Delannoy, Charles; Jakobsen, Greta; Johansson, Inger; Bourseau, Patrick.
BACKGROUND: Numerous studies have demonstrated that in vitro controlled enzymatic hydrolysis of fish and shellfish proteins leads to bioactive peptides. Ultrafiltration (UF) and/or nanofiltration (NF) can be used to refine hydrolysates and also to fractionate them in order to obtain a peptide population enriched in selected sizes. This study was designed to highlight the impact of controlled UF and NF on the stability of biological activities of an industrial fish protein hydrolysate (FPH) and to understand whether fractionation could improve its content in bioactive peptides. RESULTS: The starting fish protein hydrolysate exhibited a balanced amino acid composition, a reproducible molecular weight (MW) profile, and a low sodium chloride content, allowing...
Tipo: Text
Palavras-chave: Fish protein hydrolysate; Ultrafiltration; Nanofiltration; Membrane separation; Fractionation process; Bioactive peptide.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12217/9259.pdf

Production et caractérisation de fractions protéiques à partir des coproduits de la sole tropicale (Cynoglossus senegalensis)
Provedor de dados: 5
Autores: Sylla, K. S. B.; Musabyemariya, B.; Berge, Jean-pascal; Seydi, Mg.
The by-products (viscera, heads, backbone and skins) of tongue sole coming from a Senegal frozen fisherie plant, were hydrolized with the Protamex® enzyme.Degrees of hydrolysis of 30 and 19% were obtained respectively with 40°C and 50°C.The results also showed that the proteins contained in these by-products are completely solubilized by the action of this protease at the end of 180 minutes of hydrolysis. The biochemical characterization showed that these hydrolysates are rich in proteins (61%) and minerals (10%). However, the hydrolysates contain peptides of lower molecular sizes 1760Da.Lastly, these hydrolysates have high nutritional value in order to set up table fowls because they have in big quantity 9 essential amino acids for the poultry feed.
Tipo: Text
Palavras-chave: Co-produits; Hydrolyse enzymatique; Protéines; By-products; Enzymatic hydrolysis; Proteins.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00015/12621/9506.pdf

Proteolysis of shrimp by-products (Peaneus monodon) from Madagascar
Provedor de dados: 5
Autores: Randriamahatody, Zo; Sylla, K. S. B.; Nguyen, Thi-my-huong; Donnay-moreno, Claire; Razanamparany, L.; Bourgougnon, N.; Berge, Jean-pascal.
To generate and recover elements from shrimp heads, proteolysis was performed with commercial acidic or alkaline proteases for 22 h. The resulting phases were characterized for protein and lipid content and amino acid composition while the molecular proﬁles of soluble peptides were established. Whatever the protease used, more than the half of the initial dry matter was found into aqueous phase including most of the proteins while lipids were found to remain insoluble. Hydrolysates were mainly constituted by small peptides (480% below 1000 Da) with up to 14–15 amino acids identiﬁed. Moreover, all the hydrolyses have led to an increase of the amount of essential amino acids into the hydrolysates, including lysine. Thus, such proteolysis of shrimp heads can...
Tipo: Text
Palavras-chave: By-products; Shrimp; Proteolysis; Hydrolysate.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00055/16646/14196.pdf

New access to 1,3-diketones from aldehydes
Provedor de dados: 5
Autores: Fargeas, Valérie; Baalouch, Myriam; Metay, Estelle; Baffreau, Jerôme; Menard, Dominique; Gosselin, Pascal; Berge, Jean-pascal; Barthomeuf, Chantal; Lebreton, Jacques.
A simple and efficient methodology to introduce an 1,3-diketone motif from various aldehyde precursors in three steps with good overall yields is described using beta-ketosulphone 7 as masked equivalent of acetone.
Tipo: Text
Palavras-chave: 1; 3 diketones Alkylation Sulfones Aldehydes.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-829.pdf

Purification de peptides immunologiquement apparentes aux gastrines / cholecystokinines chez quelques crustacés décapodes : action sur la synthèse protéique
Provedor de dados: 5
Autores: Berge, Jean-pascal.
La présence de substances immunologiquement apparentées aux O/CCK de vertébrés est détectée chez les crustacés décapodes (Favrel,1988; Turrigiano G.G,1989). Un protocole de purification est même établi pour Palaemon serratus et Nephrops norvegicus (Favrel,1988).  Dans un premier temps, nous allons nous attacher à la purification des G/CCK immunologiquement apparentées aux hormones peptidiques de vertébrés (O/CCK"like") chez les deux espèces précitées.  Dans un deuxième temps, à l'aide des fractions purifiées, le rôle biologique des G/CCK"Iike" et particulièrement leur action sur la synthèse protéique vont être étudiés.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00136/24708/22762.pdf

Stockage des poissons fumés et ou séchés : cas de Oreochromis niloticus " Fiha saly " malgache
Provedor de dados: 5
Autores: Ndrianaivo, Elia; Cornet, Josiane; Cardinal, Mireille; Razanamparany, Louisette; Berge, Jean-pascal.
During storage of smoke-dried fish, various biochemical reactions can occur; they will result in product acceptability or rejection. To determine these changes, pH and humidity were measured and molds were counted on smoke-dried fish stored for 6 months. A sensory analysis was also conducted to assess the quality of the products. Infestations and losses linked to it have been estimated by counting the insects and weighing of fish batches over time. The variability in the quality of smoke-dried fish depending on the time of purchase and storage was also integrated with our study. Biochemical reactions are mainly oxidation phenomena which result in a decrease of pH and release of spoilage odors such as rancid odor (&gt; 1.5/ 3) or sulfur, acid and moldy...
Tipo: Text
Palavras-chave: Poissons fumés/séchés; Stockage; Qualité organoleptique; Infestation des insectes; Saison humide; Saison sèche.; Smoked/dried fishes; Storage; Sensory quality; Insect infestation; Wet season; Dry period.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00354/46522/46286.pdf

Optimization of common cuttlefish (Sepia officinalis) protein hydrolysate using Pepsin by Response Surface Methodology
Provedor de dados: 5
Autores: Kechaou, Emna; Berge, Jean-pascal; Jaouen, Pascal; Ben Amar, Raja.
Protein hydrolysate was prepared from common cuttlefish Sepia officinalis by Pepsin. Hydrolysis conditions (time, temperature, and enzyme activity) were optimized by response surface methodology (RSM) using a factorial design. The regression coefficient was close to 0.999, observed during both experimental and validation runs, and indicated the validity of prediction model. An enzyme activity to substrate ratio (X1), 0.04 AU/g protein; time (X2), 85 minutes; and temperature (X3), 45 °C were found to be the optimum conditions for a higher degree of hydrolysis (21%) and nitrogen recovery (90%) using Pepsin. According to amino acid analysis results and chemical score, methionine and histidine are the limiting amino acids in the hydrolysates, in that order....
Tipo: Text
Palavras-chave: Cuttlefish protein hydrolysate (CPH); Amino acid; Enzyme; Sepia officinalis.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00182/29285/27715.pdf

Kinetic study of solid phase demineralization by weak acids in one-step enzymatic bio-refinery of shrimp cuticles
Provedor de dados: 5
Autores: Baron, Regis; Socol, Marius; Arhaliass, A.; Bruzac, Sandrine; Le Roux, Karine; Del Pino, J. Rodriguez; Berge, Jean-pascal; Kaas, Raymond.
We describe a one-step bio-refinery process for shrimp composites by-products. Its originality lies in a simple rapid (6 h) biotechnological cuticle fragmentation process that recovers all major compounds (chitins, peptides and minerals in particular calcium). The process consists of a controlled exogenous enzymatic proteolysis in a food-grade acidic medium allowing chitin purification (solid phase), and recovery of peptides and minerals (liquid phase). At a pH of between 3.5 and 4, protease activity is effective, and peptides are preserved. Solid phase demineralization kinetics were followed for phosphoric, hydrochloric, acetic, formic and citric acids with pKa ranging from 2.1 to 4.76. Formic acid met the initial aim of (i) 99 % of demineralization yield...
Tipo: Text
Palavras-chave: Bio-refinery; Acidic enzymatic proteolysis; Shrimp cuticles; Demineralization kinetics and modeling.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00281/39244/37809.pdf

Gas chromatographic behavior of fatty acid derivatives for mass spectrometry on low-polarity capillary columns
Provedor de dados: 5
Autores: Dubois, Nolwenn; Barnathan, Gilles; Gouygou, Jean-paul; Berge, Jean-pascal.
The gas chromatographic properties of four derivatives of fatty acids (FA), namely fatty acid methyl esters, picolinyl esters, N-acyl pyrrolidides and 4,4-dimethyloxazoline derivatives, which contain various structural features (double bonds, branching, hydroxyl group) in their acyl chains have been compared on a low-polarity capillary column with a mass spectrometer as detector. Temperature programming rates yielding the highest resolution were optimized for each derivative by means of computer-assisted column temperature optimization software. Indeed, the Drylab software represents a valuable assistance for estimating the optimum analysis conditions. Time and efforts required for such method development can greatly be reduced. Different parameters...
Tipo: Text
Palavras-chave: Picolinyl esters N Acyl pyrrolidides Methyl esters GC MS Fatty acid derivatives 4; 4 Dimethyloxazoline.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6846.pdf

Optimisation of liquor yield during the hydraulic pressing of sardine (Sardina pilchardus) discards
Provedor de dados: 5
Autores: Perez-galvez, Raul; Chopin, Christine; Mastail, Max; Ragon, Jean-yves; Guadix, Antonio; Berge, Jean-pascal.
Fresh sardine (employed as discard model species) was pressed with a hydraulic press in order to obtain a partially dewatered cake (whose volume represents between 55% and 60% of the initial Volume of raw material) and a 3-phase press liquor comprising an aqueous fraction, an oil fraction and a variable amount of suspended solids. Pressing conditions, such as final pressure to which the sardine was subjected, compression speed, number of pressing stages and time of relaxation between two consecutive pressing stages, were optimised by means of a statistically designed experiment. The goal of the optimisation problem was to achieve maximal yield of press liquor with a minimum load of suspended solids. The Suspended solid content in the press liquor Must be...
Tipo: Text
Palavras-chave: Multiobjective optimisation; Response surface methodology; Hydraulic pressing; Fish discards; Sardine.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7415.pdf

Investigation of the antifouling constituents from the brown alga Sargassum muticum (Yendo) Fensholt
Provedor de dados: 5
Autores: Bazes, Alexandra; Silkina, Alla; Douzenel, Philippe; Fay, Fabienne; Kervarec, Nelly; Morin, Dimitri; Berge, Jean-pascal; Bourgougnon, Nathalie.
One of the most promising alternatives to toxic heavy metal-based paints is offered by the development of antifouling coatings in which the active ingredients are compounds naturally occurring in marine organisms and operating as natural antisettlement agents. Sessile marine macroalgae are remarkably free from settlement by fouling organisms. They produce a wide variety of chemically active metabolites in their surroundings, potentially as an aid to protect themselves against other settling organisms. In this study, a dichloromethane extract from the brown seaweed Sargassum muticum was tested in situ and, after 2 months of immersion, showed less fouling organisms on paints in which the extract was included, compared to paints containing only copper after 2...
Tipo: Text
Palavras-chave: Sargassum muticum; Palmitic acid; Dioctyl phthalate; Dichloromethane extract; Brown algae; Antifouling.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6601.pdf

Recovery of valuable soluble compounds from washing waters generated during small fatty pelagic surimi processing by membrane processes
Provedor de dados: 5
Autores: Dumay, Justine; Radier, Severine; Barnathan, Gilles; Berge, Jean-pascal; Jaouen, Pascal.
This work focuses on the treatment of washing waters coming from surimi manufacturing using ultrafiltration technology at a laboratory scale. Four membrane materials (poly-ether sulfone, polyacrilonytrile, poly vinylidene fluoride and regenerated cellulose) and 5 Molecular Weight Cut-Off (from 3 to 100 kDa) have been studied at bench laboratory scale using the pilot Rayflow (R) 100, commercialised by Rhodia Orelis. The investigation deals with the ability for membranes to offer a high retention of biochemical compounds (proteins and lipids). Results obtained during adsorption tests showed that the regenerated cellulose material seems to be the most appropriate with regards to pore size reduction due to the protein-adsorption. During the ultrafiltration of...
Tipo: Text
Palavras-chave: Fish oil; Regenerated cellulose; Surimi wastewater; Enzymatic hydrolysis; Ultrafiltration.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4359.pdf

Screening of marine algal extracts for anti-settlement activities against microalgae and macroalgae
Provedor de dados: 5
Autores: Hellio, Claire; Berge, Jean-pascal; Beaupoil, Claude; Le Gal, Yves; Bourgougnon, Nathalie.
The ban on the use of TBT-based antifouling paints for boats under 25 m in length has lead to a search for new non-toxic antifoulants. One of the most promising alternative technologies to heavy metal based antifouling paint is the development of antifouling coatings whose active ingredients are naturally occurring compounds from marine organisms. This is based on the principle that marine organisms are also facing the problem of the presence of epibionts on their own surface. In this study, the antifouling activity of a series of aqueous, ethanolic and dichloromethane extracts from 30 algae from the North East Atlantic coast was investigated. The extracts were tested in laboratory assays against species representatives of two major groups of fouling...
Tipo: Text
Palavras-chave: Antifouling; Antialgal; Microalgae; Macroalgae; Screening; Settlement; Spores.
Ano: 2002
URL: https://archimer.ifremer.fr/doc/00057/16795/14304.pdf

Lipid content and fatty acid composition of a marine-derived Trichoderma longibrachiatum strain cultured by agar surface and submerged fermentations
Provedor de dados: 5
Autores: Ruiz, Nicolas; Dubois, Nolwenn; Wielgosz Collin, Gaetane; Du Pont, Thibaut; Berge, Jean-pascal; Pouchus, Yves-francois; Barnathan, Gilles.
A marine-related Trichoderma longibrachiatum strain isolated from mussels in a farming shellfish area was investigated for total lipid (TL) production, total lipid fatty acids (TLFA), and phospholipid fatty acids (PLFA). Fungal biomass was produced from two different marine-like culture ways, on agar surface and submerged fermentations (ASF and SmF, respectively), allowing useful comparisons. ASF produced a rather higher biomass amount than SmF with similar TL content. All fatty acids (FA), identified by gas chromatography-mass spectrometry (GC-MS), were ranged from 14 to 30 carbon atoms. Similar FA compositions were found in TL and phospholipids (PL) from biomasses obtained by both fermentation systems, including oleic (up to 15.3% of total FA mixture for...
Tipo: Text
Palavras-chave: Conjugated fatty acids; Fatty acids; Lipids; Submerged fermentation; Agar surface fermentation; Trichoderma longibrachiatum.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4199.pdf

Quality differences of gilthead sea bream from distinct production systems in Southern Europe: Intensive, integrated, semi-intensive or extensive systems
Provedor de dados: 5
Autores: Valente, L. M. P.; Cornet, Josiane; Donnay-moreno, Claire; Gouygou, Jean-paul; Berge, Jean-pascal; Bacelar, M.; Escorcio, C.; Rocha, E.; Malhao, F.; Cardinal, Mireille.
The quality of gilthead sea bream from distinct production systems and geographical locations in Southern Europe was evaluated to differentiate aquaculture products from extensive, integrated and semi-intensive systems from the ones produced intensively. This work analysed the external appearance of fish, yields after filleting as well as nutritional, sensory and histological characteristics of the muscle. The results showed that the yellow-golden line between eyes and the shiny red spot on the gill cover can be important and easy criteria to discriminate aquaculture products. Trimming losses are higher in fish from intensive systems. Lipid content of fish from extensive systems was significantly lower than values observed for fish reared intensively....
Tipo: Text
Palavras-chave: Flesh quality parameters; Fatty acids profile; Sensory evaluation; Histological muscle characteristics; Rearing systems in aquaculture; Quality indicators in fish.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00021/13208/10263.pdf

Soft liquefaction of the red seaweed Grateloupia turuturu Yamada by ultrasound-assisted enzymatic hydrolysis process
Provedor de dados: 5
Autores: Le Guillard, Cecile; Berge, Jean-pascal; Donnay-moreno, Claire; Bruzac, Sandrine; Ragon, Jean-yves; Baron, Regis; Fleurence, Joel; Dumay, Justine.
Ultrasound-assisted enzymatic hydrolysis is a recent process, increasingly employed for plant biomass liquefaction and the recovery of soluble biomolecules. However, to our knowledge, it has never been used on seaweeds, particularly wet ones. The aim of this study was to compare the efficiency of three processes on the liquefaction of the red seaweed Grateloupia turuturu Yamada: enzyme-assisted extraction (EAE), ultrasound-assisted extraction (UAE), and their combination, ultrasound-assisted enzymatic hydrolysis (UAEH). These comparisons will allow the identification as to which process achieves the highest extraction yield of water-soluble compounds. For this purpose, experiments were conducted at 40 °C for 6 h using an enzymatic cocktail of four...
Tipo: Text
Palavras-chave: Ultrasound-assisted enzymatic hydrolysis; Enzymatic hydrolysis; Ultrasound; Liquefaction; Algae; Grateloupia turuturu.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00308/41877/44316.pdf

By-products from Fish Processing: Focus on French Industry
Provedor de dados: 5
Autores: Penven, Anais; Perez-galvez, Raul; Berge, Jean-pascal.
Biotechnology advances for marine by-products conversion into products of interest are numerous. In order to give maximum elements of understanding, it is essential to define the framework of this research to understand why and how bioconversion technologies are applicable. It is essential to look beyond the technical and technological advances on the subject and so to take into account the economic, social, political and environmental parameters, which govern all forms of approaches for fish by-products upgrading.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00148/25916/23949.pdf

Fatty acids from lipids of marine organisms: Molecular biodiversity, roles as biomarkers, biologically active compounds, and economical aspects
Provedor de dados: 5
Autores: Berge, Jean-pascal; Barnathan, Gilles.
Because of their characteristic living environments, marine organisms produce a variety of lipids. Fatty acids constitute the essential part of triglycerides and wax esters, which are the major components of fats and oils. Nevertheless, phospholipids and glycolipids have considerable importance and will be taken into account, especially the latter compounds that excite increasing interest regarding their promising biological activities. Thus, in addition to the major polyunsaturated fatty acids (PUFA) such as eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids, a great number of various fatty acids occur in marine organisms, e.g. saturated, mono- and diunsaturated, branched, halogenated, hydroxylated, methoxylated, non-methylene-interrupted. Various...
Tipo: Text
Palavras-chave: Nutrition; Biomarkers; Marine organisms; Fatty acids; Lipids.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-937.pdf