甜菜糖蜜のグルタミン酸醗酵 (第1報) : 基礎研究

概要

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New l-glutamic acid accumulating bacteria were isolated and marked Brevibacterium A, Brevibacterium B, and Brevibacterium C by the authors.These bacteria produce about 30% l-glutamic acid on the basis of sucrose added to culture solutions in tube, shaking flask and jar fermenter.On the other hand, the yield of l-glutamic acid from beet sugar molasses was improved to some extent by selecting adequate subsidiary materials.The decisive factor was shaking condition, viz, the oxygen absorption coefficient. The inhibitory action of beet sugar molasses on the l-glutamic acid fermentation was nullified by the improvement of the shaking condition or the aeration with agitation.Thus a yield of more than 40% l-glutamic acid on the basis of sugar was obtained in a simple medium consisting of beet sugar molasses supplemented with urea ans small quantities of inorganic salts.
社団法人日本生物工学会の論文
1959-10-15