Ruminal fermentation of propylene glycol and glycerol.

Ruminal fermentation of propylene glycol and glycerol. Research Abstract Details 

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Ruminal fermentation of propylene glycol and glycerol. Abstract Text:

Steven Trabue,Kenwood Scoggin,Siska Tjandrakusuma,Mark A Rasmussen,Peter J Reilly,

Bovine rumen fluid was fermented anaerobically with 25 mM R-propylene glycol, S-propylene glycol, or glycerol added. After 24 h, all of the propylene glycol enantiomers and approximately 80% of the glycerol were metabolized. Acetate, propionate, butyrate, valerate, and caproate concentrations, in decreasing order, all increased with incubation time. Addition of any of the three substrates somewhat decreased acetate formation, while addition of either propylene glycol increased propionate formation but decreased that of butyrate. R- and S-propylene glycol did not differ significantly in either their rates of disappearance or the products formed when they were added to the fermentation medium. Fermentations of rumen fluid containing propylene glycol emitted the sulfur-containing gases 1-propanethiol, 1-(methylthio)propane, methylthiirane, 2,4-dimethylthiophene, 1-(methylthio)-1-propanethiol, dipropyl disulfide, 1-(propylthio)-1-propanethiol, dipropyl trisulfide, 3,5-diethyl-1,2,4-trithiolane, 2-ethyl-1,3-dithiane, and 2,4,6-triethyl-1,3,5-trithiane. Metabolic pathways that yield each of these gases are proposed. The sulfur-containing gases produced during propylene glycol fermentation in the rumen may contribute to the toxic effects seen in cattle when high doses are administered for therapeutic purposes.

Ruminal fermentation of propylene glycol and glycerol. Publishing Authors By Initials

S Trabue,K Scoggin,S Tjandrakusuma,MA Rasmussen,PJ Reilly,

For similar inorganic chemicals: elements: chalcogens: sulfur research abstracts see: inorganic chemicals: elements: chalcogens: sulfur research

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Ruminal fermentation of propylene glycol and glycerol. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Journal of agricultural and food chemistry

VOLUME: 55

Page Numbers: 7043-51

Journal Abbreviation: J. Agric. Food Chem.

ISSN: 0021-8561

DAY: 27

MONTH: 07

YEAR: 2007

Ruminal fermentation of propylene glycol and glycerol. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 374755

Ruminal fermentation of propylene glycol and glycerol. Keywords Mesh Terms:

KEYWORDS: Sulfur

MESH TERMS: analysis

Chemical & Substance for Abstract: Ruminal fermentation of propylene glycol and glycerol. Information

Substance Name: Sulfur

Registry Number: 7704-34-9

Grant and Affiliation Information for Ruminal fermentation of propylene glycol and glycerol.

AFFILIATION: National Soil Tilth Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Ames, Iowa 50011, USA.

Country: United States

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MEDLINETA: J Agric Food Chem

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