中药材因含有水分、脂肪,淀粉、醣类,蛋白质、生物硷、甙类、挥发油、色素以及盐类化合物等不稳定的成分,如保管不善,易受潮湿、温度、日照,空气等自然因素影响,诱致发霉、虫蛀、变色、泛油等变质现象。兹分述于下。发霉:系指药材受潮后,在其表面或内部寄生和繁殖霉菌而言。药物发霉后影响药效(除建曲、淡豆豉外)。最易发霉的药物如牛膝、黄精、天冬等,易发霉的花类如金银花、厚朴花等;易发霉的果子类如龙眼肉、五味子、桔络、女贞子、青皮,栀子等;易霉的茎叶类如桑叶、大青叶、车前草、大小蓟、马齿 Chinese herbal medicine contains moisture, fat, starch, carbohydrates, proteins, biological glycosides, glycosides, volatile oils, pigments, and salt compounds, and other unstable components, such as poor storage, vulnerable to moisture, temperature, sunlight, air and other natural factors Effects, induced moldy, insects, discoloration, oil and other metamorphic phenomena. It is described below. Moldy: Means that the medicinal material is infested and propagated on the surface or inside after it has been dampened. The effect of the medicine after moldiness (except for Jianqu and light bean pods). Drugs that are most prone to mildew such as Achyranthes bidentata, Rhizoma Polygonati, Asparagus, etc., flowers that are prone to mold, such as honeysuckle, honokiela flower, etc.; fruits that are prone to mildew, such as longan, schisandra, orange colchicus, ligustrum lucidum, green skin, wolfberry fruit Etc.; mildewy stems and leaves such as mulberry leaves, big green leaves, plantain, size, dents