Physiology of exopolysaccharide (EPS) production by Lactococcus lactis

被引：0

作者：

Looijesteijn, E ^{[1
]}

Hugenholtz, J ^{[1
]}

Smith, MR ^{[1
]}

机构：

[1] Netherlands Inst Dairy Res, Dept Microbiol, NL-6710 BA Ede, Netherlands

来源：

TEXTURE OF FERMENTED MILK PRODUCTS AND DAIRY DESSERTS | 1998年 / 9802期

关键词：

D O I：

暂无

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Exopolysaccharide (EPS) production by Lactococcus lactis subsp. cremoris NIZO B40 was significantly influenced by variations in the carbohydrate type. Glucose was the most, and fructose the least suitable sugar source for EPS production. Culture conditions also affected EPS production. The optimal temperature for EPS production was similar to that for growth (30 degrees C). The highest concentration of EPS was measured at a culture pH of 5.8 although growth was optimal at pH 6.3. These results indicated that growth and EPS production are not completely linked to each other. This was confirmed by following the growth and EPS production with time. EPS production started at the mid-exponential growth phase but continued after the stationary phase was reached. Comparing glucose and fructose grown cultures of strain NIZO B40, no difference in activities of enzymes involved in synthesis of sugar nucleotides could be detected.

引用

页码：239 / 243

页数：3