【摘要】 将酱渣真空干燥后,采用溶剂萃取其中的油脂.结果显示,从酱渣中萃取油脂的最佳条件为:以正己烷为萃取剂,萃取温度63~65℃,萃取时间20 min/次,萃取5次,液固比3.5∶1(mL/g).在本试验条件下,重现性好,粕中残油率不超过1.20%,所得毛油酸价为4.5 mg KOH/g,过氧化值为15 meq/kg.更多还原

【Abstract】 Extracting crude oil from vacuum dried soy sauce residue with solvent was studied.The optimum conditions of the extracting procedure were as following recurrently: taking hexane as solvent,controlling temperature between 63～65℃,extracting 20 minutes per time for 5 times with the ratio of solvent volume to the mass of raw material was 3.5∶1(mL/g).It was also indicated that the meal contained less than 1.20% residue oil,the acid value and the peroxide value of crude oil were 4.5 mg KOH/g and 15 meq/kg,respectively.更多还原