不同产地拳参资源调查与质量评价研究

Study on the Different Regions of Resource Investigate and Evaluation of Polygonum Bistorta L Quality

目的掌握拳参资源状况,综合评价我国市场流通拳参质量,为企业生产筛选优质原料提供科学依据。方法对拳参的分布、产量、采收加工情况等进行实地调查;对18批样品进行药材质量评价,从外观性状、显微特征、水分含量、灰分含量、醇溶性浸出物含量及没食子酸含量等方面综合性考察其质量优劣。结果拳参在山东威海、日照这两个地方的使用历史和认识度较高,在吉林延吉的使用历史及认识度较低,长期来源为野生,采收时间、加工方法未按药典进行;18批样品不同品种间外观形状区别大、显微特征相似,水分含量均符合药典标准,酸不溶性灰分含量最高为湖北黄冈18.0%,醇溶性浸出物平均含量为22.56%(>15.0%),没食子酸符合药典规定的仅有3号湖北黄冈和9号安徽亳州。结论18批拳参药材仅有9号安徽亳州的质量符合《中华人民共和国药典》规定。

Objective To master the status of Polygonum bistorta resources, comprehensively evaluate the quality of Chinese market circulation, and provide scientific basis for enterprises to produce high quality raw materials. Methods Field investigation was carried out on the distribution, yield and harvesting processing of Polygonum bistorta. The quality of medicinal materials was evaluated for 18 batches of samples, from appearance traits, microscopic characteristics, moisture content, ash content, alcohol soluble extract content and gallic acid. The quality of the content was comprehensively examined. Results The use history and recognition of Polygonum bistorta produced in Weihai and Rizhao of Shandong Province was high. The history and awareness of use in Jilin Yanji was low. The long-term source was wild. The harvesting time and processing methods were not in accordance with the Pharmacopoeia. 18 batches of samples had different appearance shapes and similar microscopic features among different varieties, and the water content was in compliance with the pharmacopoeia standards. The highest acid in soluble ash content was 18.0% in Hubei Huanggang, and the average content of alcohol soluble extract was 22.56%( > 15.0%). Only No. 3 Hubei Huanggang and No. 9 Anhui Bozhou met the Pharmacopoeia regulations in the gallic acid content. Conclusion The quality of 18 batches of Polygonum bistorta medicinal materials is only in accordance with the provisions of the Chinese Pharmacopoeia.