Amino Acid Production Monosodium Glutamate

Corynebacterium glutamicum, which produces L-gluta-mate, requires biotin for growth but excessively forms L-glutamic acid at a biotin concentration suboptimal for growth. Under the condition of excess biotin, L-glutamic acid can be produced by (1) adding penicillin (19) or a surface-active agent (20), or (2) culturing an oleic acid-requiring strain at growth-limiting oleic acid concentrations (20,21). Cane molasses, beet molasses, and corn syrup are mainly used as the carbon source because of their low cost. By way of example, L-glutamic acid fermentation by the fed-batch method using cane molasses is described here. Although cane molasses contains most of the

Table 6. Rate of Oxygen Sufficiency for L-Glutamic Acid-Family Amino Acids

Was this article helpful?

0 0
Brew Your Own Beer

Brew Your Own Beer

Discover How To Become Your Own Brew Master, With Brew Your Own Beer. It takes more than a recipe to make a great beer. Just using the right ingredients doesn't mean your beer will taste like it was meant to. Most of the time it’s the way a beer is made and served that makes it either an exceptional beer or one that gets dumped into the nearest flower pot.

Get My Free Ebook

Post a comment