正交试验优化中性氧化铝吸附剂降低牛油中胆固醇工艺  

Orthogonal Array Design for Optimizing the Use of Neutral Alumina Adsorbent to Reduce Cholesterol in Butte

作　　者：任美燕[1] 丁晓雯[1] 罗金凤[1] 梁菡峪[1] 张亚琼[1] 肖洪[1] 张迪[1] 

机构地区：[1]西南大学食品科学学院,重庆市农产品加工技术重点实验室,重庆400715

出　　处：《食品科学》2012年第24期170-173,共4页Food Science

摘　　要：采用物理吸附法研究吸附剂对脱除牛油中胆固醇的影响,为降低部分食品胆固醇的方法提供参考。结果表明,中性氧化铝添加量15%、65℃作用1.0h,对牛油中胆固醇的脱除率达到40%以上。在β-环状糊精、活性氧化铝、活性白土、黄原胶、中性氧化铝、硅镁型吸附剂、阿拉伯树胶、酸性氧化铝这8种吸附剂中,中性氧化铝对牛油中胆固醇的吸附作用最强,对牛油本身的性质影响小。This study aimed at establishing a physical adsorption method for removing cholesterol from butter. An orthogonal array design was used to determine optimum conditions for the adsorption of butter by neutral alumina. The results showed that 40% of the cholesterol in butter was removed when it was treated with 15% added neutral alumina at 65 ℃ for 1 h. Neutral alumina was found to be the best adsorbent for the removal of cholesterol from butter followed by acidic alumina, Si-Mg adsorbent, diatomite, arabic gum, xanthan gum, cyclodextrin and active alumina. Furthermore, neutral alumina had little impact on the quality of butter.

关 键 词：牛油 胆固醇 吸附剂 脱除率 

分 类 号：TS225.2[轻工技术与工程—粮食、油脂及植物蛋白工程]