Nat Prod Sci.  2021 Mar;27(1):10-17. 10.20307/nps.2021.27.1.10.

Changes of Prosapogenin Components in Tienchi Seng (Panax notoginseng) by Ultrasonic Thermal Fusion Process

Affiliations
  • 1Department of Oriental Medical Food & nutrition, Semyung University, Jecheon 27136, Korea
  • 2School of Industrial Bio-Pharmaceutical Science, Semyung University, Jecheon 27136, Korea
  • 3International Education College, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, Jiangxi, China

Abstract

The purpose of this study is to develop a new method of producing tienchi seng (notoginseng, Panax notoginseng) extracts featuring high concentrations of the ginsenoside Rg3, Rg5, and Rg6, special components of Korean red ginseng. The chemical transformation from ginseng saponin glycosides to prosapogenin was analyzed by HPLC. Tienchi seng was heat-processed at 100 o C and the optimum conditions were identified. The highest concentrations of total saponin (29.723%) and the ginsenoside Rg3 (1.769%), Rg5 (5.979%), and Rg6 (13.473%) were produced at 48 hours. Also, when tienchi seng was subjected to the ultrasonic thermal fusion (100 o C) process, the concentrations of total saponin (30.578%), ginsenoside Rg3 (2.392%), Rg5 (6.614%), and Rg6 (13.017%) were highest at 36 hours. On the other hand, the 2-hour heat-processed extract and 2-hour ultrasonic thermal fusion-processed extract did not contain ginsenoside Rg3, Rg5, and Rg6. The ultrasonic thermal fusion process had an extraction yield that was approximately 1.26 times greater than that of the heat process. These results indicate that the highly functional tienchi seng extracts created through the ultrasonic thermal fusion process are more industrially useful than those produced using the heat process.

Keyword

Panax notoginseng; Rg3; Rg5; Rg6; Tienchi seng; Ultrasonic thermal fusion
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