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片姜黄的药材性状与鉴别

ว 2026-09-10 00:18:32ที่ https://db2.ouryao.com/yd2020/view.php?id=f37d3139d3เ admin

片姜黄药材呈长圆形或不规则片状,大小不一,长3~6厘米,宽1~3厘米,厚0.1~0.4厘米。外皮灰黄色,粗糙皱缩,有时可见环节及须根痕。切面黄白色至棕黄色,有一圈环纹及多数筋脉小点。质脆而坚实,断面灰白色至棕黄色,略粉质。气香特异,味微苦而辛凉。以片大、色黄白、质坚实、气香浓者为佳。冬季茎叶枯萎后采挖根茎,洗净除去须根,趁鲜纵切厚片晒干。主产四川、福建等地。鉴别要点:片姜黄为纵切厚片,切面黄白至棕黄、有环纹及筋脉点、气香特异;姜黄为不规则卵圆形或圆柱形,表面深黄色、有皱缩纹理和明显环节,断面棕黄色至金黄色、角质样、有蜡样光泽,内皮层环纹明显。二者不可混淆。以上性状与显微鉴别要点可作为临床及药材采购时的真伪优劣鉴别参考。

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