ISO 6866:1985

Animal feeding stuffs — Determination of free and total gossypol

OVERVIEW

The method is applicable to cottonseed and cottonseed meals and cakes. The method consists in extracting of the compound in the presence of 3-aminopropane-1-ol, either with a mexture of 2-propanol and hexane for the determination of free gossypol or with dimethylformamide for the determination of total gossypol. Conversion to gossypol-dianiline using aniline, and measurement of the absorbance at the wavelength of maximum absorbance (between 435 and 445 nm).

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 1985
No. of Pages 3
ICS Classification 65.120 Animal feeding stuffs
Committee ISO/TC 34/SC 10
Available for Purchase For sale in Singapore only
Adoption ISO