摘要
研究了乙醇、草酸、酒石酸、丙酮酸、苹果酸、乳酸、乙酸、柠檬酸、丁二酸对木醋杆菌产细菌纤维素的影响。结果发现:丙酮酸、乳酸、乙酸、乙醇、苹果酸、柠檬酸、丁二酸对木醋杆菌合成细菌纤维素有促进作用;草酸、酒石酸对木醋杆菌合成细菌纤维素有抑制作用;乙醇及各有机酸的最佳添加浓度分别为:丙酮酸0.15%,苹果酸0.1%,乳酸0.3%,乙酸0.4%,柠檬酸0.1%,丁二酸0.2%,乙醇4%;由正交实验得混酸的最适添加配比为:丙酮酸0.1%,苹果酸0.12%,乳酸0.2%,乙酸0.3%,柠檬酸0.12%,丁二酸0.2%,乙醇3%,BC产量达3.012g/L,是空白实验组的2.03倍。
The influence of ethanol,oxalic acid,tartaric acid,pyruvic acid,malic acid,lactic acid,acetic acid, citric acid, succinic acid on Acetobacter xylinum producing bacterial cellulose were studied, These results showed that： pyruvic acid ,lactic acid,acetic acid,ethanol,malic acid,citric acid and succinic acid had stimulative effect on Acetobacter xylinum producing bacterial cellulose. Oxalic acid and tartaric acid had inhibitory effect on Acetobacter xylinum producing bacterial cellulose. The optimum additive concentration of ethanol and organic acids were as toltows .pyruvic acid 0,15%,malic acid 0,1%,lactic acid 0,3%,acetic acid 0.4%,citric acid 0.1 % , succinic acid 0.2%, ethanol 4%. By the orthogonal experiment the optimum proportion of mixed acid were as follows： 0. 1 % pyruvic acid, malic acid 0.12% ,0.2% lactic acid, acetic acid 0.3% , citric acid 0.12%, succinic acid 0.2%,3% ethanol. The Be production was 3.012g/L,which was 2.03 times of blank group.
出处
《食品工业科技》
CAS
CSCD
北大核心
2014年第4期161-165,169,共6页
Science and Technology of Food Industry
基金
国家自然科学基金(31160338)
贵州省科学技术基金(黔科合字[2010]2066)
关键词
有机酸
乙醇
木醋杆菌
细菌纤维素
organic acid
ethanol
Acetobacter xylinum, bacterial cellulose
