Back to results
US 2008/0175929 A1Published application
Analytical methods for identifying ginseng varieties
OwnerBaihua SHEN, Zhongkai YAN +1inventors
InventorsBaihua SHEN, Zhongkai YAN, Heming NIU
Life of this patent
Estimating the term…
Abstract
An analytical method for identifying woods-grown ginseng and mountain cultivated ginseng comprise: (a) preparing ginseng extracts, (b) acquiring fingerprint regions by GC-MS analysis, (c) selecting at least 8 GC peaks for similarity calculation; (d) calculating similarity coefficients; and (e) comparing similarity coefficients of samples to those of standards.
Claims4
A method for distinguishing between woods-grown ginseng and mountain-cultivated ginseng, comprising:
- (a) preparing a ginseng extract of a 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;
- and
- (d) comparing the similarity coefficient calculated in step (c) to pre-determined standard similarity coefficients.
2 more elements
Dependencies are inferred from the claim text.