Chemical Composition of Defatted Cottonseed and Soy Meal Products

• Published in: PloS one Vol. 10; no. 6; p. e0129933
• Main Authors: He, Zhongqi, Zhang, Hailin, Olk, Dan C
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 16.06.2015; Public Library of Science (PLoS)
• Subjects: Amino acids; Amino Acids - analysis; Analysis of Variance; Capillary electrophoresis; Carbohydrates; Carbohydrates - analysis; Cattle; Chemical composition; Chemical Fractionation - methods; Chromatography; Cotton; Cottonseed meal; Cottonseed Oil - analysis; Dietary Fiber - analysis; Food; Glycine max - chemistry; Gossypium - chemistry; Gossypol; Gossypol - analysis; Irrigation; Plant Proteins - analysis; Proteins; Quality control; Raw materials; Seeds; Seeds - chemistry; Soil sciences; Solubility; Soybeans; Trace elements; Trace Elements - analysis; Water - chemistry
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0129933

Chemical composition is critical information for product quality and exploration of new use. Hence defatted cottonseed meals from both glanded (with gossypol) and glandless (without gossypol) cotton seeds were separated into water soluble and insoluble fractions, or water soluble, alkali soluble as well as total protein isolates. The contents of gossypol, total protein and amino acids, fiber and carbohydrates, and selected macro and trace elements in these products were determined and compared with each other and with those of soy meal products. Data reported in this work improved our understanding on the chemical composition of different cottonseed meal products that is helpful for more economical utilization of these products. These data would also provide a basic reference for product standards and quality control when the production of the cottonseed meal products comes to pilot and industrial scales.