食品科学 ›› 2010, Vol. 31 ›› Issue (24): 70-73.doi: 10.7506/spkx1002-6630-201024014

• 工艺技术 • 上一篇    下一篇

超临界CO2抗溶剂法制备木瓜蛋白酶超微颗粒

赵良忠1,曾祥燕1,陈 健1,陈玲娟2,徐晓东   

  1. 1. 邵阳学院生物与化学工程系
    2. 中南林业科技大学食品科学与工程学院
    3. 海安华达石油仪器有限公司
  • 收稿日期:2010-09-09 修回日期:2010-11-16 出版日期:2010-12-25 发布日期:2010-12-29
  • 通讯作者: 赵良忠 E-mail:sys169@163.com
  • 基金资助:

    湖南省科技厅重点项目(06FJ4051)

Preparation Processing of Ultrafine Papain Particle by Supercritical Carbon Dioxide Anti-solvent Method

ZHAO Liang-zhong1 ZENG Xiang-yan1 CHEN Jian1 CHEN Ling-juan2 XU Xiao-dong3   

  1. 1. Department of Chemical Biotechnology ang Engineering, Shaoyang University, Shaoyang 422000, China
    2. College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
    3. Haian Huada Oil Instrument Co. Ltd., Nantong 226600, China
  • Received:2010-09-09 Revised:2010-11-16 Online:2010-12-25 Published:2010-12-29
  • Contact: ZHAO Liang-zhong E-mail:sys169@163.com

摘要:

研究超临界CO2抗溶剂结晶技术制备木瓜蛋白酶超微颗粒的工艺条件,确定用于溶解木瓜蛋白酶的最佳溶剂及最佳体积分数。结果表明:以二甲基亚砜为溶剂时,所得的木瓜蛋白酶微粒产量与溶剂体积分数成正相关,酶活力与溶剂体积分数成负相关;以二甲基甲酰胺为溶剂所得的木瓜蛋白酶微粒产量较低、但活力较高,其中溶剂体积分数70%时,所得木瓜蛋白酶微粒的活力最高,达3484.691U/mg,远高于原料木瓜蛋白酶的酶活力400U/mg;以丙三醇为溶剂时,没有得到木瓜蛋白酶微粒。

关键词: 超临界, 抗溶剂结晶, 木瓜蛋白酶微粒, 酶活性

Abstract:

Supercritical carbon dioxide anti-solvent crystallization technology was used to prepare ultrafine papain particles to decide the optimal solvent type and solvent volume. Results indicated that the yield of ultrafine papain particles was positively correlated with solvent volume and enzyme activity was negatively correlated with solvent volume at the conditions of DMSO as the solvent. When dimethylformamide was used as the solvent, the yield of papain particles was low, but the high activity of papain particles was observed. The highest activity of papain particles was achieved to be 3484.691 U/mg at the condition of 70% solvent, which is much higher than the original activity of papain (400 U/mg). The ultrafine papain particles could not form when glycerol was used as the solvent. 

Key words: supercritical, anti-solvent crystallization, ultrafine particle papain, enzyme activity

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