Bacillus licheniformis ATCC 9945a is one of the bacterial strains that produce ␥-poly(glutamic acid) (␥-PGA). The use of carbohydrate medium components for ␥-PGA production was explored. Cells were grown in shake flasks or in controlled pH fermentors using medium formulations that contain different
Effects of glycerol on the production of poly(γ-glutamic acid) by Bacillus licheniformis
✍ Scribed by Guocheng Du; Ge Yang; Yinbo Qu; Jian Chen; Shiyi Lun
- Book ID
- 108252391
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 231 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1873-3298
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Bacillus licheniformis ATCC 9945A was grown on Medium E in batch fermentations in which the pH was maintained at 5. 5, 6.5, 7.4, and 8.25. The effects of pH on cell growth, carbon source utilization, and y-polyglutamic acid (y-PGA) production, molecular weight, and polymer stereochemistry were deter
Methods for the covalent modification in aqueous solution of poly-␥-Dglutamic acid from Bacillus licheniformis have been studied. Co-derivatization of a synthetic UV-absorbent amine and ethanolamine, using a water-soluble carbodi-imide coupling agent, yielded a water-soluble modified polymer. Deriva