Abstract
SummaryA method is described which permits application of the antimony trichloride spectrophotometric method to the determination of gossypol in a variety of cottonseed products.Gossypol is determined by means of the following series of operations: 1. extraction of gossypol from cottonseed or cottonseed products by use of chloroform or aqueous ethanol; 2. isolation of gossypol from the extracts by use of aqueous alkali; and 3. application of the antimony trichloride‐spectrophotometric test.Data are presented to show the results obtained by application of this procedure to the determination of gossypol in pigment glands, raw cottonseed meats, cooked cottonseed meats, hydraulic‐ and screw‐pressed meals, solvent‐extracted meals, gland‐free meals, and oils, both expressed and solvent‐extracted.
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