Unverified82% confidenceTradeoffTime unknown
冷链保鲜与保质期长短存在权衡:真正含高活菌的产品保质期短(冷藏21-28天),保质期越长(半年以上)通常意味着灭活或菌株活性弱,二者难兼得
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82%
Confidence
Long-term
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