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生药颜色的正常与否在某种程度上可以代表药材的质量。颜色有了变化的生药,表示出这些生药由于保存不善或是其他原因发生了变化。外观改变了,往往它的化学成分,它的疗效也有了改变。尤其在现在很多种生药的成分还不了解,在没有办法进行化学检定的情况下,生药外观所代表的意义就更大了。另外从商品角度来讲,颜色鲜明、色泽正常的药材,在市场上无疑的是更会受到欢迎的。生药当中有一部分是很容易变色的,像枸
The normality of the crude drug color can to some extent represent the quality of the medicinal material. Changes in the color of crude drugs, indicating that these crude drugs have changed due to poor preservation or other reasons. The appearance has changed, often its chemical composition, its efficacy has also changed. In particular, the composition of many kinds of crude drugs is still unknown. If there is no way to carry out chemical tests, the appearance of crude drugs represents a greater significance. In addition, from the commodity point of view, medicinal materials with vivid colors and normal colors are undoubtedly more welcome in the market. Some of the crude drugs are easily discolored, like