食品科学 ›› 2008, Vol. 29 ›› Issue (12): 58-61.

• 基础研究 • 上一篇    下一篇

大孔吸附树脂分离纯化发酵液中α-葡萄糖苷酶抑制剂的研究

 张晓琦, 杨明琰, 马瑜, 田稼   

  1. 陕西省微生物研究所; 西北大学化工学院;
  • 出版日期:2008-12-15 发布日期:2011-12-08

Study on Adsorption and Separation of α-Glucosidase Inhibitor from Fermentation Broth of Streptomyces sp. DO406 with Macroporous Resin

 ZHANG  Xiao-Qi, YANG  Ming-Yan, MA  Yu, TIAN  Jia   

  1. 1.Shaanxi Microbiology Institute,Xi an 710043,China; 2.College of Chemical Engineering,Northwest University,Xi an 710069,China
  • Online:2008-12-15 Published:2011-12-08

摘要: 本实验研究了大孔吸附树脂对发酵液中α-葡萄糖苷酶抑制剂的吸附分离特性。选择7种大孔吸附树脂,通过比较其对α-葡萄糖苷酶抑制剂的吸附率和解吸率,筛选出最佳吸附剂,并对其吸附动力学特征及解吸条件进行了研究。结果表明:大孔吸附树脂SZ4对α-葡萄糖苷酶抑制剂有较好的吸附和解吸效果,其吸附的最佳工艺条件为:pH6.0,上样流速为4.5BV/h时,其动态贯穿吸附量为6.3×103U/g树脂。30%乙醇浓度可将α-葡萄糖苷酶抑制剂洗脱下来,解吸率达88%。用大孔吸附树脂SZ4对α-葡萄糖苷酶抑制剂进行吸附分离具有吸附量大、解吸容易、再生方便的特点,十分适合于发酵液中α-葡萄糖苷酶抑制剂的分离纯化。

关键词: 发酵液, &alpha, -葡萄糖苷酶抑制剂, 大孔吸附树脂, 吸附, 分离

Abstract: Seven types of macroporous resin were compared on their adsorption and desorption performances to α-glucosidase inhibitor from fermentation broth of Streptomyces sp. DO406. The optimal resin was selected and its dynamic adsorption characterisyics and desorption conditions were studied. Results showed that SZ4 resin presents the highest adsorption and desorption capacities to theα-glucosidase inhibitor,and its optimal adsorption conditions are:pH 6.0 and flow rate 4.5 BV/h. The maximum adsorption is 6.3×103 U/g resin. When 30% ethnal is used as eluant,the desorption rate is 88%. SZ4 shows better adsorption and desorption capacity to α-glucosidase inhibitor,so it is appropriate to separate α-glucosidase inhibitor from fermentation broth.

Key words: fermentation broth; &alpha, -glucosidase inhibitor; macroporous resin; adsorption; seperation;