The invention provides a preparation process for a Chinese yam extract, which comprises the following steps: cleaning fresh Chinese yam for standby;
一种山药提取物的制备工艺，包括以下步骤：将新鲜的山药洗净， 备用；
The invention provides a preparation process for a Chinese yam extract, which comprises the following steps: cleaning fresh Chinese yam for standby;
一种山药提取物的制备工艺，包括以下步骤：将新鲜的山药洗净， 备用；
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