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肉眼鉴定:斜面菌种,在马铃薯洋菜培养基斜面上或棉籽饼煎汁洋菜斜面上,先产生白色菌丝层,其后产生暗粉红色孢子层,后期分泌出褐色水珠;如果马铃薯洋菜培养基内加入少量无机盐(0.2％碳酸钙,0.2％硫酸镁)菌丝和孢子均为白色,为纯菌种;如果发现培养基上有脓状物或霉状物即为污染,不可再做菌种用,假如必要用时应先纯化。固体发酵物(即母剂或再生母剂)繁殖良好的菌种,在饼土小颗粒上或代用物上似裹上一层面粉,色泽暗白,可以闻到清凉香味;如果发现氨味,霉味,菌丝生长很差,甚至不生长,拿到手中不易散落且发粘即为污染,不可再做母剂,生产上应用亦应注
Identification of the naked eye: Bevel bacteria, in the potato agar medium slope or cottonseed cake fried sauerkraut slopes, the first white mycelium layer, followed by the dark pink spore layer, later secrete brown beads; if the potato Add a small amount of inorganic salt medium (0.2% calcium carbonate, 0.2% magnesium sulfate) agar culture medium and mycelium and spores are white, as pure species; if found on the medium of pus or mildew is contaminated, Can not do bacteria species, if necessary, should be purified first. Solid fermented material (that is, mother or regenerated mother) Reproduction of good bacteria in the small particles on the cake or on behalf of the like wrapped in a layer of flour, dark color, you can smell the cool scent; if ammonia smell, Musty, mycelial growth is poor, do not even grow, get the hands are not easy to scattered and sticky that is pollution, can not do mother, the application of production should also note