本文研究了乳酸在营养肉汤培养基对蜡样芽胞杆菌的抑制，以及前期乳酸浸泡大豆后对蜡样芽胞杆菌在天培中生长情况的影响。
The inhibition effects of lactic acid on the growth of Bacillus cereus in nutrient broth was studied, and also the influence of acidified soak water with lactic acid before the fermentation of tempeh.
藻丝的营养细胞是扁平的，具异形胞。
The filament possesses oblate cell for nutrition and heterocyst.
异形胞可溶部分的蛋白酶活比营养细胞可溶的蛋白酶活高4—5倍。
The activity of the soluble protease of heterocyst was 4-5 times higher than that of the vegetative cell.
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