Influence of Humidity on Quality Stability of Codonopsis Radix
Abstract:Objective:The aim of this study was to analyze the changes in chemical constituents at different humidities and provide references for the quality stability of Codonopsis Radix. Methods:The content of lobetyolin,polysaccharide,sucrose,glucose and fructose of Codonopsis Radix samples stored at 3 kinds of different humidities including normal humidity,20%,5% was detected for 6 months simultaneously. Results:The results indicated that the content of lobetyolin decreased in different degree while that of polysaccharide,sucrose,glucose and fructose showed a tendency of first rise then fall during 6 months. Different humidities had influences on the quality stability of Codonopsis Radix at various degree,that was 5%>20%>normal humidity in turn. It was optimum to adopt humidity of 5% to ensure a good quality of Codonopsis Radix. Conlusion:Our ndings demonstrated that humidity had an obvious impact on chemical constituents of Codonopsis Radix,which should be strictly controlled to ensure the quality stability of Codonopsis Radix and guarantee its validity of clinical treatment.