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Biotransformation Process for the Production of Sotolon as a Natural Flavour Enhancer  

Jang, In-Hwan (Dept. of Food and Biotechnology and Dept. of Innovative Industrial Technology, Hoseo University)
Kang, Min-Sook (Dept. of Food and Nutrition, Hoseo University)
Chae, Hee-Jeong (Dept. of Food and Biotechnology and Dept. of Innovative Industrial Technology, Hoseo University)
Publication Information
Applied Biological Chemistry / v.47, no.1, 2004 , pp. 49-54 More about this Journal
Abstract
Biotransformation process using microorganisms was examined to improve the bioconversion rate for the production of sotolon from the raw material. First, the extraction condition was optimized with regard to solvent type and pretreatment conditions. Dichloromethane was selected as a suitable solvent for the extraction of sotolon and sotolon-related compounds. Second, various microorganisms such as lactic acid-producing bacteria, yeast and fungi were tested for the biotransformation. Among the tested microbes, Agaricus blazei showed the highest conversion rate. Additives including amino acids, salts, and organic acids were investigated to test their effects on bioconversion. When the solution was added by isoleucine, ${\alpha}-ketoglutaric\;acid$, ascorbate, and $FeSO_4$ and later incubated by culture broth containing the mycelium of Agaricus blazei, the sotolon content increased up to about 77 times as compared to that of the raw material.
Keywords
sotolon; natural favour enhancer; biotransformation;
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