Content Ditermination of Sulfer Dioxide Residues, Extracts and Main Chemical Compositions in Pinelliae Rhizoma from Different Producting Areas / 中国中医药信息杂志

ABSTRACT

Objective To determine the content of sulfur dioxide residues, extracts and main components; To study the effects of sulfur fumigation on the characters, extracts and index components of Pinelliae Rhizoma. Methods The contents of succinic acid, adenosine and guanosine in 22 samples of Pinelliae Rhizoma from different producing areas were detected by RP-HPLC method. The extracts of Pinelliae Rhizoma were measured by cold-maceration. Sulfur dioxide residues in Pinelliae Rhizoma were examined by acid-base titration. Results Among the 22 samples of Pinelliae Rhizoma, the ratio of sulphur smoked products of Pinelliae Rhizoma was 81.8％. Three kinds of components of succinic acid, adenosine and guanosine were well separated, baseline separation was achieved, and the average recoveries of samples were 99.1％, 100.1％ and 99.3％, respectively. Conclusion The phenomenon of sulfur fumigation is very serious in feild processed products of Pinelliae Rhizoma. To some extent, sulfur fumigation has an influence on the characters, extracts and the content of succinic acid in Pinelliae Rhizoma. This study provides references for quality standard revision of Pinelliae Rhizoma in Chinese Pharmacopoeia 2020.