Spatial and Temporal Variation of Secondary Metabolite Profiles in Ginkgo biloba Leaves1)
IR@IHBT: CSIR-Institute of Himalayan Bioresource Technology, Palampur
View Archive Info| Field | Value | |
| Title |
Spatial and Temporal Variation of Secondary Metabolite Profiles in Ginkgo
biloba Leaves1)
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| Creator |
Kaur, P
Chaudhary, A Singh, D R Chand, Gopi Singh , Bikram |
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| Subject |
Plant sciences
Natural Product Chemistry |
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| Description |
Terpene trilactones (TTLs) are the main bioactive constituents of Ginkgo biloba used for the
preparation of drugs for several ailments. Flavonoid glycosides (FGs) are the significant group of
compounds found in Ginkgo leaves used in food and healthcare products. The variation in the content of
bioactive constituents, as well as antioxidant activity, with respect to change in altitude and the time of
sample collection was investigated. The amount of TTLs varied from 0.218–0.709% w/w, whereas FGs
were observed in the range of 0.130–0.209% w/w. Ginkgolides J and A showed significant variation (p� 0.05) with the change in altitude, while other components remained more or less unaffected. The amount
of TTLs and FGs were not affected significantly by the time of sample collection. The antioxidant
capacity (by using DPPH, ABTS, and FRAP assays) of ginkgo extracts was highly dependent on the
altitude, and was at maximum in the samples collected from 1000–2000 m, followed by the samples
collected from altitudes lower than 1000 m and higher than 2000 m. Thus, Ginkgo harvested from 1000–
2000 m of altitudinal range irrespective of the season could provide better nutraceutical formulations,
whereas that from below 1000 m may yield a terpene trilactone-enriched fraction
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| Date |
2012
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://ihbt.csircentral.net/1050/1/59_Spatial_and_Temporal_2012.pdf
Kaur, P and Chaudhary, A and Singh, D R and Chand, Gopi and Singh , Bikram (2012) Spatial and Temporal Variation of Secondary Metabolite Profiles in Ginkgo biloba Leaves1). CHEMISTRY & BIODIVERSITY, 9. pp. 409-417. |
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| Relation |
http://ihbt.csircentral.net/1050/
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