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| Registros recuperados: 163 | |
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| Wang,Yongqiang; Zhang,Wenju; Nie,Cunxi; Chen,Cheng; Zhang,Xiaoyang; Hu,Jianhe. |
| Abstract The study of metabolomics requires extracting as many metabolites as possible from a biological sample. This study aimed to determine the optimal method for the extraction of metabolites from solid-state fermented cottonseed meal (FCSM). The UPLC-Q-TOF-MS global metabolomics technology was used to detect the metabolites in FCSM, and the extraction quantity and extraction efficiency of seven different extraction methods, specifically the WA, 50MeOH, 50MeOHB, 50MeCNB, 80MeOHB, 80MeOH and AMF methods were evaluated. The results showed that the number of VIP metabolites extracted by AMF method are 196 and 184 in ESI+ and ESI- mode respectively, it is the largest number of all exacted methods; and the AMF methods also provided a higher extraction... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metabolomics; Extract; Fermentation; FCSM; Lactobacillus acidophilus; UPLC-Q-TOF-MS. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200392 |
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| Bravo-Martins,Claudia Eugênia Castro; Carneiro,Heloisa; Castro-Gómez,Raúl Jorge Hernán; Figueiredo,Henrique César Pereira; Schwan,Rosane Freitas. |
| Sugar cane silage has a potential for animal feeding, but uncontrolled growth of undesirable microorganisms may cause nutritional losses and affect the animal productivity and health. The objective of this work was to evaluate the microbiological quality and chemical composition of ensiled sugar cane with and without nutritional additives after 30 days of fermentation. Yeasts, filamentous fungi and distinct groups of bacteria were enumerated by plate count methods and the chemical analyzes comprised dry matter, crude protein, fiber content, lignin, and pH. Facultative aerobic bacteria and filamentous fungi were not detected during the fermentative process in any of the treatments. The number of yeasts in five varieties of sugar cane silage without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sugar cane silage; Fermentation; Yeasts; Lactic acid bacteria. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400018 |
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| Lacerda,Inayara C. A.; Gomes,Fátima C. O.; Borelli,Beatriz M.; Faria Jr,César L. L.; Franco,Gloria R.; Mourão,Marina M.; Morais,Paula B.; Rosa,Carlos A.. |
| We used a cultivation-independent, clone library-based 16S rRNA gene sequence analysis to identify bacterial communities present during traditional fermentation in sour cassava starch, cachaça and cheese production in Brazil. Partial 16S rRNA gene clone sequences from sour cassava starch samples collected on day five of the fermentation process indicated that Leuconostoc citreum was the most prevalent species, representing 47.6% of the clones. After 27 days of fermentation, clones (GenBank accession numbers GQ999786 and GQ999788) related to unculturable bacteria were the most prevalent, representing 43.8% of the clones from the bacterial community analyzed. The clone represented by the sequence GQ999786 was the most prevalent at the end of the fermentation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Cassava; Cachaça; Cheese; Clone library. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200029 |
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| Castillo-Castillo,Y.; Ruiz-Barrera,O.; Burrola-Barraza,M.E.; Marrero-Rodriguez,Y.; Salinas-Chavira,J.; Angulo-Montoya,C.; Corral-Luna,A.; Arzola-Alvarez,C.; Itza-Ortiz,M.; Camarillo,J.. |
| Abstract Solid-state fermentation can be used to produce feeds for ruminants, which can provide an enriched population of yeasts to improve ruminal fermentation. Fermentation of apple bagasse was performed to obtain a yeast-rich product, with the objective of isolating, identifying, and characterizing yeast strains and testing their capability to enhance in vitro ruminal fermentation of fibrous feeds. Yeasts were isolated from apple bagasse fermented under in vitro conditions, using rumen liquor obtained from cannulated cows and alfalfa as a fibrous substrate. A total of 16 new yeast strains were isolated and identified by biochemical and molecular methods. The strains were designated Levazot, followed by the isolate number. Their fermentative capacity was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apple bagasse; Ruminal; Fermentation; Yeast. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400889 |
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| Rabbani,Mohammed; Bagherinejad,Mohammad Reza; Sadeghi,Hamid MirMohammad; Shariat,Ziaedin Samsam; Etemadifar,Zahra; Moazen,Fatemeh; Rahbari,Manizheh; Mafakher,Ladan; Zaghian,Saeideh. |
| The purpose of the present study was to screen and identify the lipase-producing microorganisms from various regions of Iran. Samples collected from hot spring, Persian Gulf, desert area and oil-contaminated soil, were analyzed for thermophilic extracellular-lipase producing organisms. Six strains with high activity on rhodamine B plates were selected for chemical identification and further study. Among these isolated bacteria, four strains show higher activity in pH-Stat method at 55 °C. These strains were identified by PCR amplification of 16s rRNA genes using universal primers. Fermentation increased the activity up to 50%. The growth medium, designed for lipase production, increased the activity up to 4.55 folds. The crude supernatant of ZR-5 after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extracellular lipase; PH-stat method; Thermophilic lipase; Fermentation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400013 |
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| Araújo,Roberta A.C.; Gomes,Fátima C.O.; Moreira,Elizabeth S.A.; Cisalpino,Patrícia S.; Rosa,Carlos A.. |
| An ecological study on Saccharomyces cerevisiae populations in spontaneous fermentation has been conducted in three vats of a cachaça distillery in Minas Gerais, Brazil. Ninety-seven yeast isolates were collected at the beginning, the middle and at the end of the production period, and were identified by standard methods. Differentiation between the indigenous S. cerevisiae strains isolated was performed by mitochondrial DNA (mtDNA) restriction analysis, RAPD-PCR, and PCR fingerprint using an intron splice primer. Analysis of the mtDNA restriction profiles revealed 12 different patterns, 11 corresponding to indigenous yeasts (I to XI) and one (XII) to a commercial strain of the bakery yeast. Pattern II (53.6% of the population) and pattern IV strains were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharomyces cerevisiae; Cachaça; Fermentation; Molecular diversity. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200006 |
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| Maldonade,Iriani R.; Scamparini,Adilma R. P.; Rodriguez-Amaya,Délia B.. |
| The objective of the present study was to select and identify yeasts from Brazil capable of producing carotenoids. Pigmented yeasts were isolated from soil, leaves, fruits, flowers and a processed product. The samples were incubated at 30ºC in Erlenmeyer flasks, containing YM broth. After 48 hours, they were inoculated in Petri dishes with YM agar, and incubated at 30ºC during 120 hours. The yeast colonies, which presented yellow to red coloration, were transferred to culture tubes containing YM agar, and incubated at 30ºC for 72 hours. Out of 242 samples, only five had yellow to red color at high intensity. These highly pigmented yeasts were re-isolated in Petri dishes with YM agar and then transferred to tubes with GPYM agar. Identification through... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pigmented yeasts; Identification; Rhodotorula; Carotenoid; Fermentation. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000100014 |
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| Pereira,Juliane Mascarenhas; Aquino,Ana Carolina Moura de Sena; Oliveira,Daiana Cardoso de; Rocha,Gabriela; Francisco,Alícia de; Barreto,Pedro Luiz Manique; Amante,Edna Regina. |
| ABSTRACT: Sour cassava starch is a naturally modified starch produced by fermentation and sun drying, achieving the property of expansion upon baking. Sour cassava starch' bakery products can be prepared without the addition of yeast and it is gluten free. The fermentation process associated with this product has been well studied, but the wastewater, with high acidity and richness in other organic compounds derived from starch degradation, requires further investigation. In this study, the structure of solids present in this residue was studied, seeking to future applications for new materials. The solids of the wastewater were spray dried with maltodextrin (MD) with dextrose equivalent (DE) of 5 and 15 and the structure of the powder was evaluated by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sour cassava starch; Fermentation; Water; Microstructure. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400732 |
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| Ferreira,Lívia Geraldi; Pires,Juliana de Melo; Zangeronimo,Márcio Gilberto; Saad,Flávia Maria de Oliveira Borges; Brandi,Roberta Ariboni; Bueno,Ives Cláudio da Silva; Barbosa,Priscila Barros; Lisenko,Karen Guttenkunst; Taffarel,Taís Regina; Reis,Jéssica Santana dos. |
| ABSTRACT: This study aimed to evaluate the effects of substituting wheat bran (WB) by corn gluten feed without steep water (CGF) in cats feeds regarding the nutritional value of the diet, stool characteristics, time of food passage through the gastrointestinal tract (GIT), intestinal gas production and concentrations of short chain fatty acids (SCFA) in blood and faeces. Twenty eight cats were distributed in a randomized block design with four treatments (0, 2.6, 5.3 or 8.0% CGF, based on dry matter, substituting for WB) and seven replicates. Substitution of WB by CGF decreased (P<0.01) the digestibility of acid detergent fibre without influencing (P>0.05) the digestibility of other nutrients and apparent metabolizable energy. There was also no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-industrial by-product; Dietary fibre; Digestibility; Felines; Fermentation. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300601 |
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| Bertagnolli,Silvana Maria Michelin; Bernardi,Gabrieli; Donadel,Jossiê Zamperetti; Fogaça,Aline de Oliveira; Wagner,Roger; Penna,Neidi Garcia. |
| ABSTRACT: Although different tropical fruit species have been used in the development of fermented beverages, there are only few references in the literature to the production of natural sparkling wines from fruits other than grapes. In this sense, the objective of the present research was the development and physicochemical and volatile characterization of a natural sparkling guava wine produced by the champenoise method. Volatile compounds were identified by gas chromatography coupled to mass spectrometry using the headspace solid-phase microextraction (HS-SPME) technique on samples. Eighty-nine volatile compounds were detected, of which 51 were identified. Esters were the predominant class of volatile compounds (a total of 26), followed by alcohols... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Psidium guajava L.; Volatile compounds; Gas chromatography. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900782 |
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| Cabral,Mirelle Márcio Santos; Abud,Ana Karla de Souza; Silva,Carlos Eduardo de Farias; Almeida,Renata Maria Rosas Garcia. |
| ABSTRACT: Population growth and the increasing search for healthy foods have led to a major consumption of coconut water and, hence, to an environmental impact caused by the inappropriate disposal of green coconut husks. This lignocellulosic biomass has deserved attention of researchers concerning the seeking of new usages, as, for example, in renewable fuels production technologies. This study examines the potential of green coconut husk fibers as a feedstock for the production of bioethanol. The coconut fibers were pretreated through an alkaline method, hydrolyzed enzymatically and submitted to ethanol fermentation with commercial yeasts of Saccharomyces cerevisiae. Despite the significant loss of cellulose (4.42% in relation to the fiber and 17.9%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reuse; Coconut husk; Fermentation; Bioethanol. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001872 |
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| Registros recuperados: 163 | |
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