Results 281 to 290 of about 727,401 (355)

97 Can Fecal Volatile Fatty Acids be Used as an Indicator of Ruminal Volatile Fatty Acids?

Journal of Animal Science, 2023
Abstract For in vitro digestibility experiments addressing both horses and cattle, feces have long been thought to be an equivalent surrogate for ruminal or cecal inoculum that would eliminate the need for fistulated animals. However, this assumption requires similar microbial and chemical properties among inoculum sources. Validation of
Abbigail R Hines, Diva N Rigney, Haley Lowrey, Kim K Mullenix, Courtney Heaton, Leanne L Dillard, William B Smith   +6 more
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Volatile fatty acids from axenic Ascaris lumbricoides

Archives of Biochemistry and Biophysics, 1960
Abstract 1. 1. The investigations in this study have been concerned with the separation and identification by gas-liquid chromatography of the methyl esters of volatile fatty acids excreted from axenic Ascaris lumbricoides. 2. 2. Ten methyl ester peaks, of which three were major components and seven minor components, were detected.
T, ELLISON, W A, THOMSON, F M, STRONG
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Human Vaginal Secretions: Volatile Fatty Acid Content

Science, 1974
Vaginal samples (682) were collected by a tampon method from 50 healthy young women. Samples were analyzed by gas chromatography. The volatile aliphatic acids increased during the late follicular phase of the menstrual cycle and declined progressively during the luteal phase.
R P, Michael, R W, Bonsall, P, Warner
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A mechanistic study and review of volatile products from peroxidation of unsaturated fatty acids: an aid to understanding the origins of volatile organic compounds from the human body

Journal of Breath Research, 2020
The assessment of volatile compounds (VOCs) for disease diagnosis is a growing area of research. There is a need to provide hard evidence i.e. biochemical routes, to justify putative VOC biomarkers, as in many cases this remains uncertain, which weakens ...
N. Ratcliffe, Tomasz Wieczorek, Natalia Drabińska, O. Gould, A. Osborne, B. D. L. de Lacy Costello   +5 more
semanticscholar   +1 more source

Pseudo catalytic transformation of volatile fatty acids into fatty acid methyl esters

Bioresource Technology, 2016
Instead of anaerobic digestion of biodegradable wastes for producing methane, this work introduced the transformation of acidogenesis products (VFAs) into fatty acid methyl esters (FAMEs) to validate the feasible production of short-chained fatty alcohols via hydrogenation of FAMEs.
Jong-Min, Jung, Jinwoo, Cho, Ki-Hyun, Kim, Eilhann E, Kwon   +3 more
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Simplified automated volatile fatty acids analysis

Water Research, 1968
Abstract A method is proposed for the automated determination of the total volatile fatty acid content of aqueous samples. The manifold is simpler and the method quicker than existing procedures. No special preparation of the reagents is required. Improved accuracy results by taking into consideration the colour contributed by the sample itself.
J.E. Harwood, D.J. Huyser
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Volatile Cuprous and Silver Salts of Fatty Acids

Nature, 1948
IN a communication in Nature1, one of us (F. K.) reported on a volatile copper compound obtained by thermal decomposition of cupriformate. J. G. Maltby2 directed attention to the work of A. Angel and A. V. Harcourt3, according to whom cuprous acetate forms as a white sublimate when cupriacetate is heated.
A, KELLER, F, KOROSY
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Volatile fatty acids, “copulins”, in human vaginal secretions

Psychoneuroendocrinology, 1975
Abstract (1) In a double-blind study using a new tampon method, 682 samples of vaginal secretions were collected from 50 healthy young women attending a university. (2) Samples were analyzed by gas chromatography for the volatile fatty acids (C2-C6) that have sex-attractant properties in infra-human primates.
R P, Michael, R W, Bonsall, M, Kutner
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Volatile Fatty Acids in Portal Blood of Sheep

Nature, 1949
VOLATILE fatty acids—chiefly acetic, propionic and butyric acids—are formed as a result of the fermentation processes in the rumen of sheep and are absorbed through its wall. With the purpose of investigating the concentration of these acids and other constituents in the portal blood during a digestion cycle, that is, the 12-hour period after feeding ...
P, SCHAMBYE, A T, PHILLIPSON
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Volatile fatty acids in normal human physiological fluids

Clinica Chimica Acta, 1970
Abstract A relatively simple gas Chromatographic technique is described which makes possible the identification and quantitation of free volatile fatty acids containing up to 6 carbon atoms in physiological fluids. Values are shown for the concentrations of these acids in the urine, serum, cerebrospinal fluid, and sweat of normal human subjects.
T L, Perry, S, Hansen, S, Diamond, B, Bullis, C, Mok, S B, Melançon   +5 more
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