Premium
Effects of Steaming and Air‐Drying on Ginsenoside Composition of K orean Ginseng ( P anax ginseng C . A . M eyer)
Author(s) -
Koh Eunmi,
Jang OkHee,
Hwang KyuHyon,
An YoungNam,
Moon BoKyung
Publication year - 2015
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/jfpp.12412
Subject(s) - ginseng , steaming , ginsenoside , chemistry , food science , significant difference , traditional medicine , air temperature , medicine , alternative medicine , pathology , climatology , geology
This study aimed to compare the ginsenosides composition of ginseng depending on cultivated region and processing method. Fresh ginseng roots collected from four major regions of K orea were processed using either air‐drying or steaming, and subsequent air‐drying. Five ginsenosides including R g 1 , R e, R b 1 , R c and R b 2 were the major forms in fresh ginseng, whereas R b 1 and R g 1 were abundant in processed ginsengs. The contents of total ginsenoside decreased with thermal processing and also showed a regional difference between processed ginsengs, whereas fresh ginseng had a regional variation only in R g 1 . Unlike another ginsenosides decreased by processing, R b 1 increased with thermal processing. Ginsengs with relatively much higher content of R c in fresh ginseng had a significant loss by air‐drying and had about five times higher content of R g 3 than that of fresh ginseng. This indicates that R c was transformed into R g 3 during air‐drying. Practical Applications Korean ginseng used as a traditional medicine because of various beneficial effects is thermally processed to improve its efficacy. Ginsenoside is an interesting bioactive compound found in ginseng. Processing methods, air‐drying or steaming, and subsequent air‐drying, changed ginsenosides qualitatively and quantitatively. These results suggest that processing conditions should be carefully employed to enhance or retain the pharmaceutical effects of ginseng products.