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Journal of Food Quality
Volume 2017 (2017), Article ID 6840397, 8 pages
https://doi.org/10.1155/2017/6840397
Research Article

Variation in Flavonoid Composition and Radical-Scavenging Activity in Ginkgo biloba L. due to the Growth Location and Time of Harvest

1Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Sukileliu 13, LT-50166 Kaunas, Lithuania
2Department of Pharmacognosy, Lithuanian University of Health Sciences, Sukileliu 13, LT-50166 Kaunas, Lithuania

Correspondence should be addressed to Laura Rimkiene; tl.inumsl@eneikmir.arual

Received 14 June 2017; Revised 12 August 2017; Accepted 30 August 2017; Published 12 October 2017

Academic Editor: Ángel A. Carbonell-Barrachina

Copyright © 2017 Laura Rimkiene et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of our research is to investigate the qualitative and quantitative composition and antioxidant activity of flavonoids in leaf samples of Ginkgo biloba L. (G. biloba) growing in Lithuania and also to provide practical recommendations for the pharmaceutical industry to determine the optimum harvesting time and growth location of G. biloba leaves. The obtained results indicate that the growth location and time of sample collection have a significant influence () on the content of active compounds. July and August are the best months to harvest G. biloba leaves for industry. To ensure the rational collection of G. biloba raw material, the location of plantations is recommended in the western and southwestern phytoregions. The obtained results also indicate that the flavonoid content in G. biloba leaf has a significantly positive correlation (, ) with antioxidant activity. The aqueous acetonic extracts from green leaves scavenge radicals to a greater degree than those from yellow Ginkgo leaves. The results of this investigation provide information regarding the most suitable Lithuanian growing location to produce G. biloba with an optimized content of health-promoting compounds.