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- Title
Authentication of Ginkgo biloba herbal dietary supplements using DNA barcoding.
- Authors
Little, Damon P.; Gulick, P.
- Abstract
Ginkgo biloba L. (known as ginkgo or maidenhair tree) is a phylogenetically isolated, charismatic, gymnosperm tree. Herbal dietary supplements, prepared from G. biloba leaves, are consumed to boost cognitive capacity via improved blood perfusion and mitochondrial function. A novel DNA mini-barcode assay was designed and validated for the authentication of G. biloba in herbal dietary supplements ( n = 22; sensitivity = 1.00, 95% CI = 0.59-1.00; specificity = 1.00, 95% CI = 0.64-1.00). This assay was further used to estimate the frequency of mislabeled ginkgo herbal dietary supplements on the market in the United States of America: DNA amenable to PCR could not be extracted from three (7.5%) of the 40 supplements sampled, 31 of 37 (83.8%) assayable supplements contained identifiable G. biloba DNA, and six supplements (16.2%) contained fillers without any detectable G. biloba DNA. It is hoped that this assay will be used by supplement manufacturers to ensure that their supplements contain G. biloba.
- Subjects
GINKGO; GINKGO -- Health aspects; GENETIC barcoding; DIETARY supplements; POLYMERASE chain reaction; MOLECULAR genetics
- Publication
Genome, 2014, Vol 57, Issue 9, p513
- ISSN
0831-2796
- Publication type
Article
- DOI
10.1139/gen-2014-0130