SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Ordóñez Valencia, Claudia.

La presente investigación evaluó los efectos de la interacción entre el bicarbonato de potasio (KHCO3), el fungicida iprodione y el hongo Trichoderma viride, para controlar el crecimiento y desarrollo de Sclerotinia sclerotiorum. Para ello, este trabajo fue dividido en tres capítulos experimentales. El primer capítulo evaluó el potencial antagónico de cuatro hongos filamentosos (Trichoderma viride, Phanerochaete chrysosporium, Trametes sp. y Trametes versicolor) contra Sclerotinia sclerotiorum, mediante confrontamientos in vitro y producción de enzimas como amilasas, lipasas, pectinasas, proteasas y celulasas. De los cuatro hongos T. viride tuvo mejor potencial antagónico. El segundo capítulo evaluó el crecimiento y desarrollo de Sclerotinia sclerotiorum...

Palavras-chave: Micoparasitismo; Fungicida; Bicarbonato de potasio; Ácidos grasos; Mycoparasitism; Fungicide; Fatty acids; Edafología; Doctorado; Potassium bicarbonate.

Ano: 2014

URL: http://hdl.handle.net/10521/2267

Composición química y calidad de la carne de bovino en diferentes sistemas de alimentación del estado de Puebla.

Expresión fisiológica y bioquímica del deterioro natural y artificial de semillas de Physalis ixocarpa Brot.

Torres Beltrán, Anayeli.

El objetivo fue evaluar la composición química y calidad de la carne de bovinos en diferentes sistemas de alimentación del estado de Puebla, México. Se realizó un muestreo en cuatro regiones: Trópico Este y Trópico Oeste donde la alimentación es en pastoreo más alimento concentrado y en el Centro y Mixteca, donde el sistema es estabulado con alimento concentrado. En cada región se definieron tres sitios y en cada uno se muestrearon 3 animales (n=36). Se evaluó el músculo Longissimus dorsi para determinar humedad, proteína, extracto etéreo (EE), cenizas, ácidos grasos, pH, color (L*a*b), capacidad de retención de agua (CRA), pérdida de agua por cocción (PPC), textura, y se colectó una muestra de sangre para determinar clenbuterol. En humedad, proteína y...

Palavras-chave: Acidos grasos; Bovinos; Calidad de carne; Clenbuterol; Cattle; Fatty acids; Meat quality; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.

Ano: 2013

URL: http://hdl.handle.net/10521/2201

Pichardo González, Juan Manuel.

México es centro de origen del tomate de cáscara (Physalis ixocarpa Brot.), el cual ocupa el cuarto lugar dentro de las especies olerícolas. La investigación en esta especie es escasa, particularmente en los procesos que ocasionan el deterioro de las semillas almacenadas, fenómeno que provoca una pérdida anual hasta de 10 % de germinación. La presente investigación se llevó a cabo en tres fases. En la primera se evaluaron respiración y contenido de ácidos grasos y su correlación con perdida de germinación y vigor en semillas deterioradas de P. ixocarpa var. CHF1-Chapingo, almacenadas hasta por siete años en una bodega sin control de clima. En la segunda fase, se evaluaron las mismas variables en semillas sometidas a envejecimiento acelerado (deterioro...

Palavras-chave: Tomate verde; Modelo; Acidos grasos; Respiración; Envejecimiento acelerado; Almacenamiento; Husk tomato; Model; Fatty acids; Respiration; Accelerated aging; Storage; Semillas; Doctorado.

Ano: 2010

URL: http://hdl.handle.net/10521/77

Expresión fisiológica y bioquímica del deterioro natural y artificial de semillas de Physalis ixocarpa Brot.

Pichardo González, Juan Manuel.

Ano: 2010

URL: http://hdl.handle.net/10521/77

Respuesta a la selección para contenido de aceite en una variedad de maíz de la raza Comiteco

Respuesta a la selección para contenido de aceite en una variedad de maíz de la raza Comiteco

Torres Morales, Braulio.

Para determinar el efecto de la selección recurrente para alto contenido de aceite se evaluaron tres sintéticos de maíz de grano amarillo en tres localidades del estado de Chiapas en el ciclo de temporal Primavera-Verano 2008; estos sintéticos provienen de tres ciclos de selección producto de la recombinación de las mejores 50 familias de medios hermanos (FMH). Durante el desarrollo del cultivo y al momento de la cosecha se tomaron datos de las variables agronómicas; en las tres localidades se tomaron muestras de grano de cada una de las parcelas las cuales se analizaron en laboratorio para determinar el contenido de aceite y la proporción de las estructuras en el grano. De las muestras de dos localidades también se tomó una submuestra para determinar el...

Palavras-chave: Selección recurrente; Ganancia genética; Contenido de aceite; Ácidos grasos; Recurrent selection; Genetic gain; Oil content; Fatty acids; Maestría; Genética.

Ano: 2010

URL: http://hdl.handle.net/10521/86

Breeding of high lipid producing strain of Geotrichum robustum by ion beam implantation

Torres Morales, Braulio.

Palavras-chave: Selección recurrente; Ganancia genética; Contenido de aceite; Ácidos grasos; Recurrent selection; Genetic gain; Oil content; Fatty acids; Maestría; Genética.

Ano: 2010

URL: http://hdl.handle.net/10521/86

Electron. J. Biotechnol.

Cao,Yuanyuan; Yao,Jianming; Li,Jun; Chen,Xiangsong; Wu,Jinyong.

To obtain an industrial strain with high lipid yield, the wild strain G0 of Geotrichum robustum was mutated by means of nitrogen ions implantation. Mutagenic effects of strain G0 by low energy N+ ion implantation were studied. The experimental results indicated that the survival rate curve took a ?saddle? shape, and the positive mutation rate was increased to 22.00% at the dose of nitrogen ions 2.0 x 10(15) ions/cm² when the survival rate was 28.60%. By repeated screening, a high lipid producing strain G9 was obtained. The biomass, lipid content and lipid yield of the mutant can reach 40.25 g/L, 71.14% and 28.63 g/L after cultured in a 5L fermenter for 8 days, increasing by 52.81%, 68.82% and 157.93% to those of wild strain, respectively. Analysis results...

Tipo: Journal article

Palavras-chave: Fatty acids; Geotrichum robustum; High lipid producing strain; Ion beam implantation.

Ano: 2010

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600002

Study on the relationship between intracellular metabolites and astaxanthin accumulation during Phaffia rhodozyma fermentation

Electron. J. Biotechnol.

Xiao,Anfeng; Jiang,Xinglong; Ni,Hui; Yang,Qiuming; Cai,Huinong.

Background To study the relationship between intracellular anabolism and astaxanthin production, the influence of intracellular protein and fatty acids on astaxanthin production by four mutant Phaffia rhodozyma strains and their variations was investigated in this research. Results First, the content of astaxanthin in cells showed a reverse fluctuation in contrast to that of protein during the whole fermentation process. Moreover, compared with the three other strains, the astaxanthin-overproducing mutant strain of the yeast P. rhodozyma, called JMU-MVP14, had the highest specific productivity of astaxanthin as 6.8 mg/g, whereas its intracellular protein and fatty acid contents were the lowest. In addition, as a kind of sugar metabolic product, ethanol was...

Tipo: Journal article

Palavras-chave: Astaxanthin; Ethanol; Fatty acids; Phaffia rhodozyma; Protein.

Ano: 2015

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300002

Isolation and characterization of hydrocarbon producing green alga Botryococcus braunii from Indian freshwater bodies

Electron. J. Biotechnol.

Dayananda,Chandrappa; Sarada,Ravi; Kumar,Vinod; Ravishankar,Gokare Aswathanarayana.

Samples of green colonial unicellular microalga Botryococcus braunii were collected from Bear Shola Falls at Kodaikanal (latitude 10.31 N and longitude 77.32 E), Tamil Nadu, India. Specimens were isolated, cultured and examined for its hydrocarbon content, morphological features and DNA structural resemblance with the known strain to confirm its identity. Inter simple sequence repeats (ISSR) finger printing revealed strong genetic similarity among the authentic strain (B. braunii N-836) and the Indian isolated strain (B. braunii CFTRI- Bb1) from Kodaikanal. The type of hydrocarbons produced by the Kodaikanal isolates were analyzed and identified as saturated hydrocarbons in the range of C21 to C33 by GCMS. Tetracosane and octacosane were found as the major...

Tipo: Journal article

Palavras-chave: Biomass; Carbon dioxide; Carotenoids; Fatty acids; Inter simple sequence repeats; Saturated hydrocarbons.

Ano: 2007

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000100008

Fatty acid methyl esters extracted from the cuticular surface of Artemia franciscana (Kellogs, 1906) (Crustacea: Anostraca) increase the swim speed of conspecific males

Gayana

Tapia,Carola; Parra,Leonardo; Mutis,Ana; Gajardo,Gonzalo; Quiroz,Andrés.

ABSTRACT Previous researches have established that the swim speed of some microcrustaceans is influenced by chemical compounds emitted by conspecifics. We examined the hypothesis that cuticular compounds present on the body surface of A. franciscana, the most widespread member of Artemia genus, play a role in the swim speed of conspecific males. The movements (swim) of one male confronted to a sponge soaked with female or male cuticular extract, were recorded during 30 minutes and the swim speed was determined using a behavioral tracking software (Ethovision 3.1, Noldus Technologies). As a control, the movements of one male confronted to a sponge soaked with salty water or with a mixture of the solvents used in the extraction (chloroform-methanol), was...

Tipo: Journal article

Palavras-chave: Artemia; Swimming speed; Cuticular compounds; Fatty acids; Chemical communication.

Ano: 2016

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382016000200154

Distribuição vertical da composição química e da uniformidade no tamanho de grãos em plantas de soja de tipo de crescimento determinado e indeterminado.

CARRÃO-PANIZZI, M. C.; LEITE, R. S.; OLIVEIRA, M. C. N. de; MANDARINO, J. M. G. (in memoriam); BOSCATO, B. dos S. da S..

bitstream/item/215599/1/BOLETIM-PD-25-1.pdf

Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)

Palavras-chave: Soja; Óleo Vegetal; Proteína Vegetal; Ácido Graxo; Soybeans; Vegetable oil; Vegetable protein; Fatty acids.

Ano: 2020

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124579

Atividades lipolíticas em polpa e óleo de frutos de dendê.

Enriquecimento da carne suína com ácidos graxos ômega-3 através da suplementação da dieta com óleos de canola e linho.

ROMERA, C. M.; SANTOS, C. F. dos; TURATI, D. F. M.; NAKAI, D. K.; JUNGMANN, L.; MENDES, T. D.; PACHECO, T. F.; RODRIGUES, D. de S..

Resumo: Um dos principais desafios da coleta e extração de óleo de frutos de dendê (palma de óleo) é a manutenção da qualidade do óleo, de forma a evitar a liberação de ácidos graxos, que mudam as propriedades do óleo e, consequentemente, reduzem seu valor comercial. A liberação desses ácidos é atribuída à ação de lipases. Entretanto, não há um consenso quanto à fonte das enzimas que hidrolisam excessivamente o óleo, se ela é endógena (produzida pelo próprio fruto de dendê) ou exógena (produzida por um determinado microrganismo que colonizou o fruto de dendê). Neste trabalho, a verificação da presença de lipases no mesocarpo de frutos de dendê foi realizada por meio de reações de hidrólise. Dessa maneira, as proteínas contidas no mesocarpo de dendê foram...

Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)

Palavras-chave: Frutos de dendê; Palma de óleo; Dendê; Ácido Graxo; Lípase; Hidrolise; Acidificação; Palm oils; Hydrolysis; Acidification; Fatty acids.

Ano: 2021

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132216

BERTOL, T. M.; SANTOS FILHO, J. I. dos; LUDKE, J. V.; CAMPOS, R. M. L. de.

bitstream/item/96947/1/final7333.pdf

Tipo: Comunicado Técnico (INFOTECA-E)

Palavras-chave: Carne; Suíno; Ácido graxo; Meat quality; Swine; Fatty acids.

Ano: 2013

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/979418

O que é bom pode ficar ainda melhor.

BERTOL, T. M.; SANTOS FILHO, J. I. dos.

bitstream/item/93094/1/final7227.pdf

Tipo: Artigo de divulgação na mídia (INFOTECA-E)

Palavras-chave: Qualidade da carne; Ácido graxo; Fatty acids; Meat quality.

Ano: 2013

URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/972046

Sources de variation de la forme des otolithes: Implications pour la discrimination des stocks de poissons

Microparticulate diets as first food for gilthead sea bream larva (Sparus aurata): study of fatty acid incorporation

Mahe, Kelig.

The assessment and management of fish populations is based on the use of management units called fish stocks. The shape of otoliths, calcified structures of the fish's inner ear, can be used to discriminate these stocks. First, this thesis focuses on the study of the spatio-temporal variability of the otolith’s shape for three fish species with different ecological characteristics (size, swimming speed, behaviour in the water column, etc.) and biogeographical environments. The results showed that there is a decreasing structural gradient across stock sizes from large pelagic species to more localised demersal species. This is linked to the fact that some demersal species such as the bogue (Boops boops) are constrained by the presence of geographical...

Tipo: Text

Palavras-chave: Otolithe; Forme; Stock halieutique; Descripteurs de Fourier; Température; Acides gras; Asymétrie directionnelle; Degrés-jours de croissance; Otolith; Shape; Fish stock; Fourier descriptors; Temperature; Fatty acids; Directional asymmetry; Growing degree days.

Ano: 2019

URL: https://archimer.ifremer.fr/doc/00598/70972/69201.pdf

Seasonal Variation of Lipids and Fatty Acids of the Microalgae Nannochloropsis oculata Grown in Outdoor Large-Scale Photobioreactors

Robin, Jean; Vincent, Benoit.

Recent advances have led to the development of inert diets for first-feeding marine fish larvae. The purpose of the present study was to evaluate fatty acid (FA) incorporation into larva using practical-type and semipurified diets as first food for larvae. Experimental microparticulate diets were fed to gilthead sea bream larvae, right from the mouth opening to day 21 post hatching. Five basal diets were compared, using fish meat or casein as main protein sources, and fish protein concentrate or casein hydrolysates and algae powder (Schizochytrium). Diets contained soybean lecithin to provide polar lipids and this also provided a high linoleic acid (18:2n-6) content. n-3 HUFA (1.5-1.7% DM) were mainly in dietary neutral lipids, with a part in polar lipids...

Tipo: Text

Palavras-chave: Sparus aurata; Inert diet; Fatty acids; Larva; Fish.

Ano: 2003

URL: http://archimer.ifremer.fr/doc/2003/publication-499.pdf

Seasonal variation of physical, chemical and sensory characteristics of sea bream (Sparus aurata) reared under intensive conditions in Southern Europe

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

A brief review of nutritional studies for Penaeus monodon

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

Lipid requirements of the scallop Pecten maximus (L.) during larval and post-larval development in relation to addition of Rhodomonas sauna in diet

Liao, I; Liu, F.

In order to develop effective formulated for Penaeus monodon , sufficient information is needed on its nutritional requirements. Unfortunately, research on this area has been very limited. This paper outlines the results of such research. Since data on the nutritional requirements of P. japonicus are relatively well established, some of these data are also reviewed in this paper and are used as a basis for assessing the nutritional requirements of P. monodon . Protein, lipid, carbohydrate, mineral and vitamin requirements are evaluated from the parameters of growth survival and feed efficiency. Studies on the effects of enzymes and the development of microparticulate diet for larvae are also summarized.

Tipo: Text

Palavras-chave: Penaeus monodon; Pond culture; Shrimp culture; Amino acids; Fatty acids; Marine crustaceans; Diets; Enzymes; Feed efficiency; Survival; Growth; Vitamins; Carbohydrates; Lipids; Proteins.

Ano: 1989

URL: http://archimer.ifremer.fr/doc/1989/acte-1471.pdf