【摘要】 研究用发酵法从米糠中提取高浓度γ-氨基丁酸的富集技术。采用柠檬酸溶液对米糠进行抽提,然后在米糠提取液中接种保加利亚乳酸杆菌发酵,对相关影响因素进行分析研究。结果表明,米糠提取液的最佳提取条件是:米糠在柠檬酸溶液中pH=6.0、温度50℃水浴抽提4 h;最佳发酵条件为:pH=6.0,温度45℃加入保加利亚乳酸杆菌发酵16 h。更多还原

【Abstract】 High concentration γ-aminobutyric acid powder extracting and enriching technique from rice bran was investigated.Citric acid was employed in rice bran extracting and then the extract was fermented with Bulgaria lactic acid bacillus.Experimental results indicated that the optimal rice bran extracting condition was as follows: citric acid solution pH value 6.0,fermentation in bulgaria lactic acid bacillus for 16 h at 45 ℃.更多还原