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粉葛的炮制方法与药材鉴别

ว 2026-09-10 09:12:34ที่ https://www.dayi.org.cn/cmedical/1155675.htmlเ admin

粉葛的采收加工于秋、冬二季采挖,除去外皮,稍干后截段或再纵切两半或斜切成厚片,干燥。炮制方法为除去杂质,洗净,润透,切厚片或切块,干燥。保存时应置通风干燥处,防蛀。

药材性状鉴别方面,粉葛呈圆柱形、类纺锤形或半圆柱形,长12~15cm,直径4~8cm,有的为纵切或斜切的厚片,大小不一。表面黄白色或淡棕色,未去外皮的呈灰棕色。体重,质硬,富粉性,横切面可见由纤维形成的浅棕色同心性环纹,纵切面可见由纤维形成的数条纵纹。气微,味微甜。

饮片性状呈不规则的厚片或立方块状,外表面黄白色或淡棕色,切面黄白色,体重质硬富粉性。粉葛与柴葛的主要区别在于:粉葛淀粉含量高,色白粉性强,适合脾虚泄泻;柴葛纤维性强,葛根素含量更高,更适合心脑血管病症。

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