Production of edible Cottonseed protein concentrates by Mixed Solvent (Water: Acetone: Hexane)

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Abstract

Cottonseed is considered among most important crops. It contains about 26 percent oil that ‎in used for vegetable oil production. After oil extraction, the remaining part of the seed know as ‎cottonseed cake with 45 percent protein is routinely used as a protein supplement in feed ‎rations for livestock and less for food use due to presence of gossypol, a toxic constituent of ‎cottonseed.‎ In this study, the production of edible protein concentrate from Varamin variety of ‎cottonseed cake was evaluated according to protein Advisory Group Standard by using mixture ‎of water: acetone: hexane in a ratio of (1: 39: 60), (3: 53: 44) and (3: 67: 30) respectively as a ‎solvent as wet extraction‏ ‏of protein. The fiber content, Protein content, Nitrogen solubility ‎value, oils and free as well as total gossypol contents of all samples were determined. The results ‎showed that the protein concentrate extracted by the mixture of water: acetone: hexane in a ‎ratio of 1: 39: 60 respectively meet the world standards as edible protein.‎

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