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A modified method for the estimation of bound formaldehyde in treated feed proteins
Author(s) -
Van Dooren Paul H.
Publication year - 1975
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.2740260904
Subject(s) - chromotropic acid , formaldehyde , chemistry , chromatography , process engineering , biological system , computer science , organic chemistry , biology , engineering
Methods for determining bound formaldehyde in treated feed proteins are reviewed and a modified two‐step distillation procedure is described. A critical study is made of the various parameters concerned with the adopted chromotropic acid–H2SO4–HCHO reaction used in the analysis. The most favourable conditions necessary for optimal recovery, precision and accuracy are discussed.