Regulation of apparent viscosity and O-2 transfer coefficient by osmotic pressure in cell suspensions of Panax notoginseng

被引：9

作者：

Zhang, YH ^{[1
]}

Wang, HQ ^{[1
]}

Liu, S ^{[1
]}

Yu, JT ^{[1
]}

Zhong, JJ ^{[1
]}

机构：

[1] E CHINA UNIV SCI & TECHNOL, COLL BIOTECHNOL, BIOCHEM ENGN RES INST, SHANGHAI 200237, PEOPLES R CHINA

来源：

BIOTECHNOLOGY LETTERS | 1997年 / 19卷 / 10期

关键词：

D O I：

10.1023/A:1018370511494

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

As the dry weight to fresh weight ratio of Panax notoginseng cells is related to the medium sugar concentration, the osmotic pressure can be increased by adding glucose to change cells' water content. When the apparent viscosity was decreased from 80.1 to 10.2 cp the surface O-2 transfer coefficient (K(L)a) increased from 4.80 to 5.68 h(-1) by adding 1.23 g glucose to 50 ml culture medium after 24 h.

引用

页码：943 / 945

页数：3

共 14 条

[11] Enhancement of ginseng saponin production in suspension cultures of Panax notoginseng: Manipulation of medium sucrose [J].