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苍耳子的药材鉴别

အချိန် 2026-09-10 09:12:35ရင်း https://www.wiki8.cn/cangerzi_22973/ရေး admin

苍耳子的药材性状鉴别:本品呈纺锤形或卵圆形,长1~1.5cm,直径0.4~0.7cm。表面黄棕色或黄绿色,全体有钩刺,顶端有2枚较粗的刺,分离或相连,基部有果梗痕。质硬而韧,横切面中央有纵隔膜,2室,各有1枚瘦果。瘦果略呈纺锤形,一面较平坦,顶端具1突起的花柱基,果皮薄,灰黑色,具纵纹。种皮膜质,浅灰色,子叶2,有油性。气微,味微苦。

炒苍耳子表面焦黄色,刺尖焦脆,微有香气。以子大、饱满、黄绿色者为佳。显微鉴别方面,苍耳子粉末淡黄棕色,可见果皮表皮细胞、纤维、导管等特征。理化鉴别可采用薄层色谱法,以苍耳子对照药材为对照,鉴别其特征性成分。

在商品规格方面,苍耳子均为统货,以身干、粒大饱满、色黄绿、无杂质者为佳。苍耳子易混淆品主要有东北苍耳子、刺苍耳等,应注意从果实大小、刺的长短和密度等方面加以区别。《中国药典》规定苍耳子的用法用量为3~10g。

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