补充描述:
Cattle/bovine placenta extract powder appears as an off-white to light yellow granule or powder, packaged in 1 kg composite film bags within foam cartons, stored in a cool, dry place below 20°C for about 2 years. Specifications include loss on drying at or below 5.0%, amino nitrogen at or above 2.0 mg/g, total bacterial count at or below 1000 cfu/ml, total nitrogen of 10.0 mg/g, molds and yeasts at or below 100 cfu/ml, and no detectable E. coli.
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