摘要
以新鲜猪皮为原料,采用两种有机溶剂——无水乙醇和异丙醇两步法脱除新鲜猪皮液中的脂肪,用二氯甲烷抽提脱脂前后的脂肪含量,以测定两步法的脱脂效果.结果表明:无水乙醇在超声波处理时间1.5h,液比1∶2.2,无水乙醇的浓度11%,处理温度35℃时脱脂效果较好;异丙醇在超声波处理时间2.5h,液比1∶2.5,异丙醇的浓度12%,处理温度40℃时脱脂效果较好;对碎猪皮液先用异丙醇处理,再用无水乙醇处理的两步法脱脂的效果较好,脱脂率达到95.68%以上.
The fat was degreased from the fresh pork skin with two kinds of organic solvent.The effect of degreasing was survey by extracting with dichloromethane before and after the degreasing.The result showed that degreasing rate is more better at time of ultrasonic is 1.5 h,liquid ratio is 1∶2.2,the concentration of anhydrous alcohol is 11% ,temperature is 35 ℃ when anhydrous alcohol is The organic solvent.The result also showd that degreasing rate is more better at time of ultrasonic is 2.5 h,liquid ratio is 1∶2.5,the concentration of isopropyl alcohol is 12% ,temperature is 40 ℃ when isopropyl alcohol is the organic solvent. And the degreasing rate is up to 95.68% when the isopropyl alcohol was used firstly and then the anhydrous alcohol was used.
出处
《陕西科技大学学报（自然科学版）》
2010年第3期78-82,共5页
Journal of Shaanxi University of Science & Technology
关键词
猪皮
脱脂方法
有机溶剂
脱脂率
pork skin
degreasing method
organic solvent
degreasing rate
