Factors Influencing Biohydrogenation and Conjugated Linoleic Acid Production by Mixed Rumen Fungi

Factors Influencing Biohydrogenation and Conjugated Linoleic Acid Production by Mixed Rumen Fungi

The objective of this study was to evaluate the effect of soluble carbohydrates (glucose, cellobiose), pH (6.0, 6.5, 7.0), and rumen microbial growth factors (VFA, vitamins) on biohydrogenation of linoleic acid (LA) by mixed rumen fungi. Addition of glucose or cellobiose to culture media slowed the...

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Veröffentlicht in:The journal of microbiology 2007-06, Vol.45 (3), p.199-204
Hauptverfasser: Nam, I.S. (National Livestock Research Institute, RDA, Suwon, Republic of Korea), Garnsworthy, Philip C. (University of Nottingham, School of Biosciences, Sutton Bonington Campus, Loughborough, UK), E-mail: Phil.Garnsworthy@nottingham.ac.uk
Format: Artikel
Sprache:eng
Schlagworte:
ACIDE LINOLEIQUE
ACIDO LINOLEICO
Animals
biohydrogenation
Cattle
Cellobiose - metabolism
CHAMPIGNON
CLA
Fatty Acids, Volatile - metabolism
FUNGI
Fungi - metabolism
Glucose - metabolism
HONGOS
Hydrogen-Ion Concentration
Hydrogenation
LINOLEIC ACID
Linoleic Acid - metabolism
Linoleic Acids, Conjugated - biosynthesis
MICROORGANISME DU RUMEN
MICROORGANISMOS DEL RUMEN
Oleic Acids - metabolism
Rumen - microbiology
RUMEN MICROORGANISMS
Time Factors
Vitamins - metabolism
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Zusammenfassung:The objective of this study was to evaluate the effect of soluble carbohydrates (glucose, cellobiose), pH (6.0, 6.5, 7.0), and rumen microbial growth factors (VFA, vitamins) on biohydrogenation of linoleic acid (LA) by mixed rumen fungi. Addition of glucose or cellobiose to culture media slowed the rate of biohydrogenation; only 35-40% of LA was converted to conjugated linoleic acid (CLA) or vaccenic acid (VA) within 24 h of incubation, whereas in the control treatment, 100% of LA was converted within 24 h. Addition of VFA or vitamins did not affect biohydrogenation activity or CLA production.
ISSN:1225-8873
1976-3794