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在制备溃疡、烫伤等类小型制剂的报道中,有些剂型在制备过程中对中药鞣质类成分的提取及处方含鞣质中药的选择方面,似有欠妥之处。因此将拙见分述于下,供参考。 1.鞣质按其理化性质的差异分为可水解鞣质类(如五倍子鞣质、酸枣树皮鞣质等)和缩合鞣质类(如虎杖鞣质、四季青鞣质等)。可水解鞣质其结构中具脂键和甙键,所以易被酸、碱、酶或沸水水解,
In the preparation of small preparations such as ulcers and scalds, some dosage forms appear to be defective in the extraction of tannins and the selection of Chinese herbal medicines containing tannins during the preparation process. Therefore, we will refer to the following for reference. 1. The tannins are classified into hydrolyzable tannins (such as gallnut tannins, wild jujube bark tannins, etc.) and condensed tannins (such as Polygonum cuspidatum, perennial tannin, etc.) according to the differences in physicochemical properties. Hydrolyzable tannins have a lipid bond and an oxime bond in their structure, so they are easily hydrolyzed by acids, bases, enzymes or boiling water.