PRODUCTIVITY OF 4 ALPHA-D-GLUCOSYLTRANSFERASES RELEASED BY STREPTOCOCCUS-SOBRINUS UNDER DEFINED CONDITIONS IN CONTINUOUS CULTURE

被引：20
|
作者：
WALKER, GJ
CHEETHAM, NWH
TAYLOR, C
PEARCE, BJ
SLODKI, ME
机构：
[1] USDA,NO REG RES CTR,PEORIA,IL 61604
[2] UNIV NEW S WALES,SCH CHEM,KENSINGTON,NSW 2033,AUSTRALIA
来源：
CARBOHYDRATE POLYMERS | 1990年 / 13卷 / 04期
基金：
英国医学研究理事会;
关键词：
34;
D O I：
10.1016/0144-8617(90)90039-U
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The distribution and activity of four different α-d-glucosyltransferases (GTF) were determined in culture filtrates of Streptococcus sobrinus grown in the chemostat. The rate of production of each enzyme depended on the growth rate, the pH of the medium, the limiting nutrient and on the presence of Tween 80. Changes in the relative proportion of GTF were reflected in the altered structures and adhesive qualities of the water-insoluble α-d-glucans synthesized from sucrose by the culture filtrates. © 1990.
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页码：399 / 421
页数：23
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