Change of Neutral Ginsenoside Contents in Red and Fresh Ginseng (Panax ginseng C. A. Meyer) by Hydrolysis

Abstract

: This study was carried out to investigate change of ginsenoside contents in red and fresh ginseng according to root part and age by hydrolysis. Neutral total ginsenoside contents by hydrolysis in 6-year main root and lateral root were significantly increased than those by non-hydrolysis, as 41.6 and 32.8%, respectively. However, there was no significant difference in red ginseng. In fresh ginseng, ginsenoside contents of the protopanaxatriol group such as Re, Rf, Rg 1 , Rg 2, and Rh 1 were not significantly different, but Rb 1 , Rb 2 , Rb 3 , Rc, and Rd showed significant difference. The increase rate of neutral total ginsenoside content by hydrolysis was higher in epidermis-cortex than stele. Also, the neutral total ginsenoside content was fine root > rhizome > lateral root > main root, respectively. While there was no tendency towards the increase of ginsenoside by hydrolysis with the increase of root age in fine root and rhizome, there was significant decrease in main root and lateral root.

Near infrared estimation of concentration of ginsenosides in Asian ginseng

“…11 High resolution melting (HRM) analysis was used to investigate the genetic differences between P. ginseng and ginseng from the United States of America, 12 and the comparison of gene signature between ginseng cultivated in Korea and China was reported. 13 Although a considerable amount of effort has been done to establish effective and rapid determination of Saponin content in Panax ginseng by high-performance liquid chromatography (HPLC), [14][15][16][17] it is not possible to test the large number of samples required for inspection, because HPLC, while being the most effective method currently established, still needs prolonged time for extraction, filtration and analysis of samples. Near infrared (NIR) spectroscopy is a rapid and nondestructive technique which has been widely applied for food composition analysis and quality assessment.…”