大黄炮制工艺的研究进展

Research Progress on the Processing Technology of Rhubarb

摘要: 大黄(Rheum palmatum L., Rheum tanguticum Maxim. ex Balf.或Rheum officinale Baill.)是中医药临床中应用极为广泛的经典药材，以其泻下攻积、清热泻火、凉血解毒、逐瘀通经之功效而著称。然而，生大黄药性峻猛，为适应不同临床需求，历代医家发展出了酒炙、醋炙、蒸制(熟大黄)、炒炭等多种炮制方法。炮制的目的是“减毒增效”，改变药性，缓和药力，或引导药效趋向。现代药学研究表明，炮制过程的本质是利用热、辅料等物理化学手段，促使中药材内部化学成分发生转化、降解或生成新的物质，从而改变其药理活性。本文旨在系统综述大黄经过不同炮制工艺后，其主要化学成分，特别是蒽醌类、鞣质类及其他化合物的变化规律，并结合《中国药典》的质量控制标准和现代分析技术的应用，探讨炮制对大黄药效物质基础的影响，为临床合理用药及饮片质量标准化提供科学依据。

Abstract: Rhubarb (Rheum palmatum L., Rheum tanguticum Maxim. ex Balf., or Rheum officinale Baill.) is a classic medicinal herb that is extensively applied in the clinical practice of traditional Chinese medicine. It is well-known for its efficacy in purging accumulation, clearing heat and purging fire, cooling blood and detoxifying, as well as removing stasis and promoting menstruation. Nevertheless, raw rhubarb has a relatively strong and drastic property. To meet different clinical requirements, medical practitioners throughout history have developed various processing methods, including stir-frying with wine, stir-frying with vinegar, steaming (processed rhubarb), and stir-frying to char. The aim of processing is to “reduce toxicity and enhance efficacy”, alter the medicinal properties, moderate the medicinal power, or guide the direction of the medicinal effects. Modern pharmaceutical research indicates that the essence of the processing procedure lies in the utilization of physical and chemical means such as heat and auxiliary materials to prompt the transformation, degradation, or formation of new substances within the internal chemical constituents of traditional Chinese medicinal materials, thereby changing their pharmacological activities. This paper endeavors to systematically summarize the variation patterns of the main chemical constituents of rhubarb, especially anthraquinones, tannins, and other compounds, following different processing techniques. By integrating the quality control criteria of the Chinese Pharmacopoeia and the application of modern analytical techniques, this paper explores the influence of processing on the material basis of rhubarb’s medicinal efficacy, providing a scientific foundation for rational clinical medication and the standardization of the quality of decoction pieces.