Composted and fresh beef cattle manure samples were extracted with distilled water, acetone, methanol, 2 N sodium hydroxide, 2 N hydrochloric acid, and ether. Bioassay techniques, using the extracts, showed that composted manure extracts had limited effect on seed germination and seeding development of wheat and sorghum. All the extracts of fresh manure, other than distilled water, retarded ger...

Early workers in the field of ruminant physiology were aware of the presence of formic, acetic, propionic and butyric acids (Tappeiner, 1884), and of smaller amounts of higher members of the saturated fatty acid series (Mangold, 1934), in the rumen fluid. Accurate data were not reported, however, until recently, when partition chromatography became available as an analytical procedure for the a...

Infrared-ultraviolet double resonance spectroscopy has been applied to study the infrared spectra of the supersonically cooled gas phase complexes of formic acid, acetic acid, propionic acid, formamide, and water with 9-hydroxy-9-fluorenecarboxylic acid (9HFCA), an analog of glycolic acid. In these complexes each binding partner to 9HFCA can function as both proton donor and acceptor. Relative ...

The conversion of propionyl coenzyme A to succinyl-CoA involves carboxylation to methylmalonyl-Cob (a), isomerization of methyhnalonyECoA (a) to its enantiomorph methyhnalonylCoA (b), and isomerization of the latter to succinyl-CoA (3). Since methylmalonyl-CoA (a) has recently been shown to have the D configuration (4, 5), the reversible reaction catalyzed by methylmalonyl-CoA racemase will hen...

In the crystal structure of the title compound, C(10)H(9)Cl(2)NO(3), the conformations of the amide O atom and the carbonyl O atom of the acid segment are anti to the H atoms of the adjacent -CH(2) groups. The C=O and O-H bonds of the acid group are in relatively rare anti positions with respect to each other. This is an obvious consequence of the concerted effects of both the all-anti mol-ecul...

Odd carbon fatty acids are considered to be oxidized in tissue by successive fl oxidation in much the same way that even carbon members of the series are (14). The terminal S-carbon unit has been investigated to some extent. Atchley (5) demonstrated propionic acid as an end-product in the oxidation of valeric acid by a rabbit enzyme system. Studies on malonate inhibition with odd carbon fatty a...

The importance of propionate in intermediary metabolism is generally recognized (1). Reid (2) concludes from his work on sheep that for these animals propionic acid is the chief source of blood glucose. Similarly McClymont (3) suggests that ruminants in general maintain their blood sugar level by gluconeogenesis from propionic acid. Injection of C14-labeled propionate into a cow’s blood stream ...