Growth of Streptococci in Surface Waters
نویسندگان
چکیده
Conversion of 2-oxoadipic acid to lysine with Saccharomyces cerevisiae was accomplished in aerated and agitated fermentors under fermentation conditions resembling those used in baker's yeast process. With this process, a yeast product containing about 16 per cent hot water-extractable lysine (calculated as hydrochloride) was obtained. The conversion efficiency of 2-oxoadipic acid to lysine was about 0.63 (weight basis) in a fermentation medium containing molasses as the sole carbon source. Most of the conversion took place during the growth period. Aeration, concentration of the added 2-oxoadipic acid, and time of precursor addition affected the lysine content and the conversion efficiency.
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