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Rapid determination of the oil content of animal feedstuffs
Author(s) -
Blakeway K.,
Croft A. G.
Publication year - 1972
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740230806
Subject(s) - petroleum , specific gravity , extraction (chemistry) , environmental science , chemistry , tetrachloroethylene , chromatography , environmental chemistry , mineralogy , organic chemistry , trichloroethylene
The modifications to a beam balance which are described make possible the differential measurement of the specific gravity of two liquids. In this method oil is extracted from animal feedstuffs with tetrachloroethylene and the change in specific gravity is used as a measure of the oil content of the sample. Results suitable for quality control which are obtained within 20 min are comparable to those obtained in 6 h by the official petroleum extraction method.