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Screening, characterization and optimization of production parameters of alpha amylase inhibitor produced by Paenibacillus lentimorbus

机译:慢肠芽孢杆菌产生的α淀粉酶抑制剂的生产参数的筛选,表征和优化

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To screen amylase inhibitor producingmarinemicroorganisms fromsea, a bacterial sps Paenibacillus lentimorbus isolated from marine sediment produced an extracellular amylase inhibitor having activity against bacterial and fungal amylases. The optimal medium for the production of inhibitor was investigated by using shake flask method. Glucose as carbon source and soybean meal as a nitrogen source for better production of amylase inhibitor as well as the growth of the isolate. Themaximumproduction of inhibitor was observed in a optimizedmediumconsisting of 2.0%glucose, 1.0%soybean flake extract, 0.3%NaCl, pH7.0 in 100%distilledwater. Out of 50 marine bacterial isolates only one marine bacterial sps was able to produce amylase inhibitor. The yield of fungal alpha amylase and bacterial alpha amylase inhibitor was increased by optimizing the above mentioned medium by 38% and 34% respectively. The organism was designated as SS11/16 (sea sediment -11th sample 16th colony). This was the first report on amylase inhibitors produced from marine Paenibacillus.
机译:为了从海上筛选出产生淀粉酶抑制剂的海洋微生物,从海洋沉积物中分离出的一种细菌慢病毒Paenibacillus Lentimorbus产生了一种具有抗细菌和真菌淀粉酶活性的细胞外淀粉酶抑制剂。采用摇瓶法研究了生产抑制剂的最佳培养基。葡萄糖可作为碳源,而豆粕则可作为氮源,以更好地生产淀粉酶抑制剂以及分离菌的生长。在100%蒸馏水中的2.0%葡萄糖,1.0%大豆片提取物,0.3%NaCl,pH7.0的优化培养基中观察到抑制剂的最大产量。在50种海洋细菌分离物中,只有1种海洋细菌能够产生淀粉酶抑制剂。通过优化上述培养基,真菌α淀粉酶和细菌α淀粉酶抑制剂的产率分别提高了38%和34%。该生物被命名为SS11 / 16(海洋沉积物第十一样本第十六殖民地)。这是关于海洋海洋杆状芽胞杆菌产生的淀粉酶抑制剂的首次报道。

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