Patent ID: 7678394
Filing Date: 2010-03-16
Classification: G01N

Abstract:
1. A method for distinguishing between woods-grown ginseng and mountain-cultivated ginseng, comprising: (a) preparing a ginseng extract of a woods-grown ginseng or mountain-cultivated ginseng sample; (b) obtaining a GC-MS spectrum of said extract; (c) calculating a similarity coefficient based on at least 8 peaks in the GC-MS spectrum with respect to a selected standard; said selected standard being a set of at least 8 peaks in GC-MS spectrum of known woods-grown ginseng; and (d) comparing the similarity coefficient calculated in step (c) to pre-determined standard similarity coefficients of (i) known mountain-cultivated ginseng with respect to known woods-grown ginseng and (ii) known woods-grown ginseng with respect to known woods-grown ginseng, based on at least 8 peaks in GC-MS spectrum.