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HPLC法测定袋料栽培茯苓中茯苓酸的含量

2021-12-17涂永勤邢康康陈仕江

云南中医中药杂志 2021年12期

涂永勤 邢康康 陈仕江

摘要:目的 建立袋料栽培茯苓中茯苓酸的测定方法,为袋料栽培茯苓的临床应用提供依据。方法 采用HPLC测定,色谱柱:(Waters X-Bridge Shied RP C18 250 mm×4.6 mm,5 μm);流动相乙腈-0.1%乙酸溶液,梯度洗脱;流速:1.0 mL/min;进样量10 μL;柱温:30℃;检测波长210nm。结果 各茯苓样品中茯苓酸的含量以野生茯苓最高为0.038%,其次是袋料栽培(室内发菌)为0.034%,树蔸栽培为0.028%、椴木栽培、袋料栽培(室外发菌)茯苓的含量在0.019~0.022之间,差异不明显。结论 该方法稳定可靠,重复性好,可以作为评价茯苓质量的方法。袋料栽培茯苓可以替代传统栽培茯苓。

关键词:茯苓;HPLC;含量测定;茯苓酸

中图分类号:R285.5   文献标志码:A   文章编号:1007-2349(2021)12-0076-03

Content of Pachymic Acid in Bag-grown Poria Cocos Determined with HPLC Method

TU Yong-qin, XING Kang-kang, CHEN Shi-jiang

(Chongqing Research Institute of Traditional Chinese Medicine, Chongqing 400065.China)

【Abstract】Objective: To establish a method for the determination of pachymic acid in bag-grown Poria cocos, and provide a basis for the clinical application of bag-grown Poria cocos. Methods: Determined by HPLC, chromatographic column was Waters X-Bridge Shied RP C18 250 mm×4.6 mm, 5 μm, and mobile phase acetonitrile-0.1% acetic acid solution, with gradient elution, 1.0 mL/min of flow rate, 10 μL of sample volume, at 30℃ of column temperature and 210nm of detection wavelength. Results: The content of pachymic acid in each Poria sample was 0.038% in wild Poria, followed by bag material cultivation (indoor fungus) at 0.034%,and  arborum material cultivation at 0.028%, and the content of linden wood cultivation and bag material cultivation (outdoor fungus) was between 0.019 and 0.022, and the difference was not obvious. Conclusion: The method is stable and reliable, with good repeatability, and can be used as a method to evaluate the quality of Poria cocos. The bag-grown Poria can replace traditional cultivation of Poria.

【Key words】Poria; HPLC; Assay; Pachymic Acid

茯苓是多孔菌科臥孔属真菌茯苓 Poria cocos(Schw.)Wolf 的干燥菌核,其菌体寄生于松木的根茎生长而成。茯苓史载于《神龙本草》,列为上品[1];为历年版《中国药典》一部所收载。茯苓具有渗湿利尿、和胃健脾、宁心安神的功效[2]。现代临床研究表明,茯苓及其配方具有抗疲劳、抗脑卒中后抑郁、治疗慢性肾小球肾炎、腹泻等疗效[3]。茯苓广泛应用于药品和食品行业,有十药九茯苓之说,为中药大品种。由于过度采挖,野生茯苓药材已十分罕见,现在临床所用药材绝大多为人工栽培。传统栽培茯苓方法是砍伐松木作为菌体繁殖材料,每年需要消耗大量的松木。松树篼栽亦可作为栽培茯苓的原料。寻找替代传统松木栽培茯苓的原料是广大科研人员的研究目标。作者开展了袋料配方栽培茯苓的研究工作,取得了成功,获得大量袋料栽培茯苓产品,有望代替传统松木栽培茯苓,以缓解砍伐松树的压力。……

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