Related Experiment Video
Updated: Aug 15, 2026

Methods for Facilitating Microbial Growth on Pulp Mill Waste Streams and Characterization of the Biodegradation Potential of Cultured Microbes
Published on: December 12, 2013
Production of gamma-aminobutyric acid from alcohol distillery lees by Lactobacillus brevis IFO-12005
Sadaji Yokoyama1, Jun-Ichi Hiramatsu, Kiyoshi Hayakawa
1Alcoholic Beverages and Food Research Laboratories, Takara Shuzo Co. Ltd., 3-4-1 Seta, Otsu-shi, Shiga 520-2193, Japan. yokoyamas@takara.co.jp
Abstract:
Lactobacillus brevis IFO-12005 showed good growth in rice shochu distillery lees (kome shochu kasu). Almost all of the free glutamic acid (10.50 mM) in shochu kasu was converted to gamma-amino-butyric acid (GABA) within 2 d of stationary culture at 30 degrees C. The amount of GABA in the kome shochu kasu medium finally reached 10.18 mM. After centrifugation of the broth culture, the supernatant fraction was treated with a flocculation agent to form a clear solution, then passed through a column containing a synthetic adsorbents, SP-207 to remove the yellow pigment and flavors which are unnecessary from a sensory perspective. An economical and simple production process for GABA was established.
Related Concept Videos
Production of Alcohol
Production of Organic Acids
Microbes in Beverage Production
Microbes in Food Production
Microbes in the Production of Fermented Foods
Bioreactor Controls-III

