Rapid freezing and normal-temperature drying processing method of traditional Chinese medicine material of Chinese yam

中药原料山药快速冷冻常温干燥加工方法

Abstract

The invention provides a rapid freezing and normal-temperature drying processing method of a traditional Chinese medicine material of Chinese yam, comprising the following steps: placing fresh Chineseyam in a layering way in a refrigeratory at an ultra-low temperature for ultra-low air-cooled quick freezing to ensure deep cooling of the fresh Chinese yam, placing the freezing fresh Chinese yam ina clean, tidy and ventilating place, unfreezing naturally at a temperature of 20-25 DEG C, trickling the water completely, then drying the Chinese yam at a normal temperature, and the dried good is qualified material of prepared drug in pieces of Chinese yam. As sulfur fumigation is not adopted in the drying process, the method ensures that the sulfur dioxide content accords with the food standard (less than 10mg/kg) and the quality of the prepared drug in pieces accords with the time limit requirement for the decoction.
本发明提供一种中药原料山药快速冷冻常温干燥加工方法,将鲜山药分层摆在超低温冷库内进行超低温风冷速冻,保证鲜山药冻透。把冷冻好的鲜山药放到干净、整洁、通风的地方,保持20-25℃自然解冻,使其水份充分沥出,然后进行常温干燥,干品即为合格的山药饮片原料。由于干燥过程不采用硫磺熏蒸,本方法能使产品二氧化硫含量符合食品标准(<10mg/kg),饮片质量符合饮片煎煮时限要求。

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    CN-102524361-AJuly 04, 2012南昌大学Method for processing Chinese yam by low-sulfur fumigation combined with salt grilling
    CN-102524361-BNovember 06, 2013南昌大学一种低硫磺熏蒸结合食盐炙加工药用山药的方法