Interactions Between Oil Substrates and Glucose on Pure Cultures of Ruminal Lipase-Producing Bacteria

The hydrolysis of free fatty acids from lipids is a prerequisite for biohydrogenation, a process that effectively saturates free fatty acids. Anaerovibrio lipolyticus 5s and Butyrivibrio fibrisolvens have long been thought to be the major contributors to ruminal lipolysis; however, Propionibacterium...

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Bibliographic Details
Published in:Lipids 2013-07, Vol.48 (7), p.749-755
Main Authors: Edwards, H. D., Anderson, R. C., Taylor, T. M., Miller, R. K., Hardin, M. D., Nisbet, D. J., Krueger, N. A., Smith, S. B.
Format: Article
Language:English
Subjects:
Animals
Biomedical and Life Sciences
Butyrivibrio - drug effects
Butyrivibrio - enzymology
Butyrivibrio - growth & development
Butyrivibrio fibrisolvens
Cattle
Corn
Corn Oil - metabolism
Culture Media
Fatty acid metabolism
Fatty acids
Flaxseed oil
Glucose
Glucose - metabolism
Glucose - pharmacology
Life Sciences
Linseed Oil - metabolism
Lipase - metabolism
Lipases
Lipid chemistry
Lipid metabolism
Lipidology
Lipids
Lipolysis - drug effects
Medical Biochemistry
Medicinal Chemistry
Microbial Genetics and Genomics
Neurochemistry
Nutrition
Olea
Olive Oil
Original Article
Plant Oils - metabolism
Propionibacterium - drug effects
Propionibacterium - enzymology
Propionibacterium - growth & development
Propionibacterium avidum
Rumen - drug effects
Rumen - microbiology
Substrate Specificity
Veillonellaceae - drug effects
Veillonellaceae - enzymology
Veillonellaceae - growth & development
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Summary:The hydrolysis of free fatty acids from lipids is a prerequisite for biohydrogenation, a process that effectively saturates free fatty acids. Anaerovibrio lipolyticus 5s and Butyrivibrio fibrisolvens have long been thought to be the major contributors to ruminal lipolysis; however, Propionibacterium avidum and acnes recently have been identified as contributing lipase activity in the rumen. In order to further characterize the lipase activity of these bacterial populations, each was grown with three different lipid substrates, olive oil, corn oil, and flaxseed oil (3 %). Because different finishing rations contain varying levels of glycogen (a source of free glucose) this study also documented the effects of glucose on lipolysis. P. avidum and A. lipolyticus 5s demonstrated the most rapid rates ( P  
ISSN:0024-4201
1558-9307
DOI:10.1007/s11745-013-3793-3