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Culture Conditions stimulating high γ-Linolenic Acid accumulation by Spirulina platensis BJM
Ronda,Srinivasa Reddy; Lele,S.S..
Gamma-linolenic acid (GLA) production by Spirulina platensis under different stress-inducing conditions was studied. Submerged culture studies showed that low temperature (25ºC), strong light intensity (6 klux) and primrose oil supplement (0.8%w/v) induced 13.2 mg/g, 14.6 mg/g and 13.5 mg linolenic acid per gram dry cell weight respectively. A careful observation of fatty acid profile of the cyanobacteria shows that, oleic acid and linoleic acid, in experiments with varying growth temperature and oil supplements respectively, helped in accumulating excess γ-linolenic acid. In addition, cultures grown at increasing light regimes maintained the γ-linolenic acid to the total fatty acid ratio(GLA/TFA) constant, despite any change in γ-linolenic acid content of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gamma linolenic acid; Light intensity; Oil supplementation; Temperature.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400018
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Tucumã oil shifted ruminal fermentation, reducing methane production and altering the microbiome but decreased substrate digestibility within a RUSITEC fed a mixed hay - concentrate diet. Repositório Alice
RAMOS, A. F. O.; TERRY, S. A.; HOLMAN, D. B.; BREVES, G.; PEREIRA, L. G. R.; SILVA, A. G. M.; CHAVES, A. V..
Abstract Tucumã oil is sourced from the fruit pulp of the tucumã tree and contains high concentrations of unsaturated fatty acids and carotenoids. Due to these properties it may have the potential to decrease enteric methane (CH4) from ruminants when included in the diet. The objective of this study was to determine the effect of oil mechanically extracted from the fruit pulp of tucumã on fermentation characteristics, CH4 production and the microbial community using the rumen stimulation technique. Treatments consisted of a control diet (forage:concentrate; 70:30), and tucumã oil included at 0.5 or 1.0% (v/v). Addition of tucumã oil linearly decreased (P < 0.01) dry matter disappearance. Total gas (mL/d) and carbon dioxide (CO2) production (mL/d, mL/g...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Oil supplementation; Rumen microbiome; Rumen stimulation technique; Terminalia Amazônia; Cattle.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102057
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