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降胆固醇乳酸菌WB的微胶囊化研究

China Dairy Industry(2010)

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Abstract
研究了降胆固醇乳酸菌WB的微胶囊化工艺,并对微胶囊化后的产品进行了评价。以海藻酸钠、明胶为壁材,含有降胆固醇乳酸菌WB的硅藻土为芯材,采用W/O/W复相乳化法制备微胶囊。通过单因素和正交试验确定最佳制备工艺条件为:乳酸菌WB菌悬液质量分数为20%,内层水相中海藻酸钠和明胶的质量分数分别为2%和3%,外层水相中明胶质量分数为12%。以该工艺制备的乳酸菌WB微胶囊具有较好的耐酸性和肠溶性,产率在86.62%左右,10℃下储存30 d,产品中活菌数仍可达到108 mL-1,体外胆固醇降解率可达到36.07%。
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Key words
cholesterol-reducing,microencapsulation,lactobacillus
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