吡咯伯克霍尔德氏菌B1213产葡聚糖酶条件的优化

Wei Lai, Cheng Ruiwen, Wang Fuqiang, Xu Yiren,Ma Jinghao,Cui Zihao,Ma Yanli,Xu Jiangqi,Tian Jinying,Fan Guangsen

Journal of Chinese Institute of Food Science and Technology(2023)

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Abstract
以吡咯伯克霍尔德氏菌B1213为研究对象,优化其发酵产葡聚糖酶条件.首先,通过单因素实验对其培养条件(碳源种类、碳源粒度、碳源质量浓度、氮源种类、氮源质量浓度、转速、温度、装液量、接种量、初始pH值、表面活性剂种类、表面活性剂质量浓度和时间)进行初步优化,然后通过Plackett-Burman试验,筛选出4个显著影响B1213产葡聚糖酶的因素,再利用最陡爬坡试验确定其产葡聚糖酶的最大响应区域,最后通过Box-Behnken试验设计确定其最优产葡聚糖酶条件为:40~60目麦麸质量浓度50g/L,酵母浸粉质量浓度8g/L,初始pH 6.6,装液量30 mL/250 mL,接种量0.15%,曲拉通100质量浓度25 g/L,温度30℃,转速160r/min和培养时间83 h.在此培养条件下B1213产葡聚糖酶活力达到1 230 U/mL.研究结果为细菌B1213在白酒酿造中的应用提供理论基础.
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Key words
Burkholderia pyrrocinia,glucanase,response surface methodology,fermentation condition,wheat bran
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