ALGINATE PRODUCTION BY AZOTOBACTER VINELANDII IN BATCH CULTURE
1992 年 38 巻 6 号 p. 641-645
詳細
1992 年 38 巻 6 号 p. 641-645
In laboratory study, some factors influencing the secretion of alginic acid by highly mucoid strain of Azotobacter vinelandii were investigated in batch culture. The highest alginate yields were (5.5-6.2mg ml-1 culture supernatant) obtained for growth in a nitrogen-rich and phosphate-limited medium with sucrose as carbon source, aerated by shaking at 240 rpm. At 140rpm, alginate yield was only 1.6mg ml-1. If sucrose was replaced by glucose, both growth and alginate production ware reduced.
