Soil Physico-Chemistry and Saponins Content of Platycodon grandiflorum Radix Cultured from Different Sites in Gyeongnam Province

Abstract

: This study was carried out in order to survey the soil physico-chemical, morphology and content of saponins of 5 year-old Platycodon grandiflorum radix from different areas in Gyeongnam. Soil physical properties was showed 1.01-1.29 of bulk density of soil and soil hardness was increased with increasing soil depth, especially below the 30 ㎝, however it was maintained or small increased below the 40 ㎝. T-N and OM contents of top soil were highest at Geochang as 0.27% and 56.9 g/kg, respectively, compared to other areas. The root length was longer at Kimhea and Geochang as 33.8 and 33.7 ㎝, respectively, and fresh weight was heavy at Geochang as 208.5 g. The contents of saponin of P. grandiflorum radix was higher in fine root compare to main root. By region, content of saponins of P. grandiflorum radix were higher at Hapcheon than other area. Mg content was highly negatively correlated at p < 0.01 with platycodin D3, deapioplatycodin D, platycodin D, and deapioplatycodin D (-0.499**, -0.433**, -0.421**, -0.511** respectively). These results suggest that no-fertilized Mg effected on the improvement of saponin contents in P. grandiflorum.

Characterization of Saponins from Various Parts of Platycodon grandiflorum Using UPLC-QToF/MS

“…Previous studies reported that platycodin D or polygalacin D were the most dominant saponin derivative, and the contents of each compound indicated values as diverse as 246.2 ~ 1196.9 (mg/100 g, DW) and 191.6 ~ 1241.0 (mg/100 g, DW) when changing soil conditions, dividing the root, and changing the cultivated region [ 31 , 48 , 49 , 50 , 51 , 52 , 53 ]. However, Lu et al showed that for the individual saponin content of various cultivated regions, some provinces revealed platycoside E (69.1 ~ 346.2 mg/100 g, DW) to be the most prevalent compound; however, other regions showed platycodin D (40.9 ~ 511.3 mg/100 g, DW) to be the predominant compound [ 42 ].…”

Nontargeted Metabolomic Analysis of Four Different Parts of Platycodon grandiflorum Grown in Northeast China

“…Herbs collected from different regions will show certain differences both in chemical constituents and in pharmacological activities [ 17 ]. For example, saponins in the root of PG from different sites in Gyeongnam Province, Korea showed different contents [ 18 ]. The 1 H-NMR-based metabolomics with OPLS-DA statistical models was used to cluster the ginseng samples from Korea and China, and the result suggested that the chemical profiles from two countries are quite different due to their different geographical origins [ 19 ].…”

Rapid characterization of chemical constituents of Platycodon grandiflorum and its adulterant Adenophora stricta by UPLC‐QTOF‐MS/MS

“…Twenty metabolites were characterized from the root of PG, which is purchased from a Daegu Herbal Market in Daegu Gyeongbuk Province, Korea. As is well known, herbs collected from different production region will show certain differences both in chemical constituents and pharmacological activities . Hence, PG produced in Jilin Province, China was taken as samples in this paper.…”