Screening for Germplasm Resources of Platycodon grandiflorum with High Polysaccharide Content
In this study,we used Platycodon grandiflorum as materials and optimized the polysaccharide-extracting technology of Platycodon grandiflorum collected from 10 different producing areas by hot water extraction method.We compared the polysaccharide extraction rates of Platycodon grandiflorum from different areas under optimal conditions and the same conditions.The results showed that the polysaccharides extraction rate of platycodon grandiflorum from the ten areas were as follows:Jilin>Inner Mongolia>Yunnan>Hebei>Hubei>Anhui>Gansu>Henan>Sichuan>Shandong,and their extraction rates were 70.64%>61.34%>56.60%>41.34%>40.65%>33.85% >30.63% >28.48% >27.74% >27.19%.The polysaccharide content of Platycodon grandiflorum from Jilin was higher than others and it was easier to extract.The extraction rate of polysaccharide was 70.64%,the yield of polysaccharide was 19.89% under a ratio of 1:20 (material to water) at 50℃,which meant that it might be used as a high-quality resource.
Platycodon grandiflorumPolysaccharideHot water extraction methodScreening resources