peptone词根词缀

Through an orthogonal test, the producing protease culture medium of the SHL-4 strain was confirmed preliminarily, namely 0.5% of peptone, 1.5% of beef extract.

采用正交试验设计，初步地确定了菌株SHL-4产酶培养基组分，即蛋白胨0.5%、牛肉膏1.5%。

Moreover, single use of beef extract peptone medium combined with spread plate count method to measure the quantity of aerobic bacteria could not reflect the real status of aerobic bacteria in pits.

单纯用牛肉膏蛋白胨培养基结合平板涂布计数法测定好氧细菌数量，不能真实反映窖内好氧细菌的真实情况。

Expanded graphite were added in PDA medium to observe the growth of Aspergillus niger, and in beef extract peptone medium to observe the growth of Staphylococcus aureus.

向PDA培养基中加入膨胀石墨观察黑曲霉的生长，向牛肉膏蛋白胨培养基中加入膨胀石墨观察金黄色葡萄球菌的生长。