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大枣是中药处方中广泛应用的生药。迄今尚无有效地确定大枣成分的诚验方法。友田等人报道中国产和日本产的大枣Zizyphus jujuba Willer var iermis Rehd,除含有多量的单糖、寡糖外,还含有阿拉伯糖和酸性多糖。根据酸性多糖的反应研究大枣的鉴定试验,此方法除可鉴定大枣外,还能鉴定其他生药,鉴定中药处方煎剂中大枣提取物的存在。
Jujube is a crude drug widely used in traditional Chinese medicine prescriptions. So far there is no effective method to determine the ingredients of jujube. Youtian et al. reported that Zizyphus jujuba Willer var iermis Rehd, a jujube produced in China and Japan, contained arabinose and acid polysaccharides in addition to a large amount of monosaccharides and oligosaccharides. According to the reaction of acidic polysaccharides, the jujube identification test was conducted. Apart from judging jujube, this method can also identify other crude drugs and identify the presence of jujube extracts in decoctions of traditional Chinese medicine prescriptions.