Utilization of Citric Acid by Rumen Microorganisms
نویسندگان
چکیده
منابع مشابه
Citric acid metabolism in the bovine rumen.
Rumen microorganisms rapidly metabolize citric acid to carbon dioxide and acetic acid. The rate of metabolism varied between 0.00008 and 0.76 mumoles per g per min, the rate becoming higher as the citric acid concentration increased. The addition of potassium chloride to rumen contents decreased the rate of utilization. The results indicate that dietary citric acid is unlikely to accumulate in ...
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Rumen microorganisms rapidly metabolized glycine at rates varying from 0.014 to 0.241 mumole of glycine per ml per min. The main metabolic products were carbon dioxide, acetic acid, and ammonia; little glycine was incorporated into bacterial protein. Use of carboxyl or methylene-labeled glycine showed that the carbon dioxide came mainly from the carboxyl of glycine, whereas both carbons of acet...
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The ability of rumen microbiota to incorporate inorganic sulfate into cystine and methionine was suggested by Loosli et al. (1949) and demonstrated by Block et al. (1951) through use of radioactive sodium sulfate. The significance of this incorporation as applied to ruminant nutrition has been discussed by Davis et al. (1954). Formation of microbial protein in the rumen of cattle is accompanied...
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The adsorption of citrate, at 10 4_10 -3 M initial concentration, by pseudoboehmite suspended in 0.02 M NaC104 was investigated at varying pH. Citrate shows a strong affinity for the pseudoboehmite surface, as seen in the adsorption isotherm at pH 6. Adsorption envelopes of adsorbed citrate vs. pH for a given initial citrate concentration are characteristic for the adsorption ofa polyprotic aci...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 1965
ISSN: 0021-8812,1525-3163
DOI: 10.2527/jas1965.242488x