earticle

영어

Rehmannia, belonging to the family of Scrophulariaceae, is a perennial herb, classified into prepared, dried, and fresh Rehmannia roots according to processing and wrapping methods, and uses different medicinal effects. The concentration of monosaccharides increases due to the decomposition of iridoids and polysaccharides through heat treatment and drying, resulting in a new monosaccharide, 5-hydroxymethyl-furfural (5-HMF). In modern society, the excellence and interest in herbal medicine are increasing. It is considered that the standardization of processing methods is essential based on academic grounds and research in order to achieve sufficient medicinal effects. This study is an insightful review of the first step toward standardization of prepared Rehmannia. Therefore, the analysis of the old literature related to Rehmannia studies, the recent research results of prepared Rehmannia, and the pharmacopeia of each country were analyzed. There are many regrets in recent years as the final quality knowledge, which ignores temperature, time, and additives are being distributed. It is believed that various studies are needed to identify the exact mechanism by proving the excellence of oriental medicine and standardizing the original products and preparation methods.