2009•Science and Technology of Food IndustryRequires access
Study on extraction of raffinose from cottonseed meal by ethanol-water solution
Qian Li-hua
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Abstract
Raffinose is soluble in acetone,water or ethanol-water solution and other polar solutions.Protein in cottonseed meal is also dissolved.Ethanol-water solution was chosen as a solvent to extract raffinose in cottonseed meal in the paper.The leaching rate of raffinose was investigated under cottonseed-meal/solvent ratio,different ethanol concentration in ethanol-water solutions,extraction time and leaching temperature.The result showed that larger cottonseed-meal/solvent ratio,lower concentrations of ethanol-water,longer time,and higher temperature conduced to increasing raffinose leaching yield.Under the condition of solid-liquid ratio of 1:12,ethanol concentration of 80%,55℃,2.5h,the extraction rate of raffinose was up to 90%.