Document Detail

Effect of yeast culture and phenolic acids on the physiology of rumen fermentation determined in vitro.
MedLine Citation:
PMID:  9728509     Owner:  NLM     Status:  MEDLINE    
The effect of p-hydroxybenzoic acid (HBA), syringic acid (SYA) and yeast culture (YS) on rumen fermentation in vitro has been investigated. Meadow hay was used as a substrate and rumen fluid as an inocula. The yeast culture Levucel contained 5x10(8) yeast cells Saccharomyces cerevisiae per 1 g of dry matter and was used in the amount of 0.5 g/l of the medium. The following combinations of additives were used: hay without additive, hay + YS, hay with 1, 5 or 10 mmol HBA or SYA, and hay + YS with 1, 5 or 10 mmol HBA or SYA. The test tubes were incubated for 96 hours at 39 degrees C. The results showed that 1 mmol HBA had a significant effect on yeast efficacy. This was manifested in the increased degradability of hay dry matter (P <0.05) and enhanced total gas production (P<0.05). SYA in the same amount combined with yeast had a similar effect on gas production (P<0.05), but hay dry matter degradability was not affected. The results showed a slight effect of phenolic acids and yeast culture on hay rumen fermentation in vitro.
I Zelenák; D Jalc; P Siroka
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Physiological research / Academia Scientiarum Bohemoslovaca     Volume:  46     ISSN:  0862-8408     ISO Abbreviation:  Physiol Res     Publication Date:  1997  
Date Detail:
Created Date:  1998-10-08     Completed Date:  1998-10-08     Revised Date:  2008-04-02    
Medline Journal Info:
Nlm Unique ID:  9112413     Medline TA:  Physiol Res     Country:  CZECH REPUBLIC    
Other Details:
Languages:  eng     Pagination:  209-13     Citation Subset:  IM    
Institute of Animal Physiology, Slovak Academy of Sciences, Kosice, Slovak Republic.
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MeSH Terms
Body Fluids / metabolism
Culture Media, Conditioned
Fermentation / drug effects*
Gallic Acid / analogs & derivatives*,  pharmacology
Parabens / pharmacology*
Rumen / drug effects,  metabolism*
Saccharomyces cerevisiae / metabolism*
Reg. No./Substance:
0/Culture Media, Conditioned; 0/Parabens; 149-91-7/Gallic Acid; 530-57-4/syringic acid; 99-96-7/4-hydroxybenzoic acid

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