STUDY ON ISOLATION OF SAPONINS FROM THE ROOTS  OF WEIGELA FLORIDA “JEAN’S GOLD”

Nguyễn Đức Hùng; Từ Quang Tân

doi:10.34238/tnu-jst.6277

STUDY ON ISOLATION OF SAPONINS FROM THE ROOTS OF WEIGELA FLORIDA “JEAN’S GOLD”

About this article

Received: 21/07/22 Revised: 27/08/22 Published: 30/08/22

Authors

1. Nguyen Duc Hung , TNU - University of Education
2. Tu Quang Tan, TNU - University of Education

Abstract

The Weigela genus, thus Caprifoliaceae, has a wide distribution in the world including over 200 species cultivated for ornamental and medicinal properties. W. florida “Jean’s Gold” is a shrub used as outdoor for ornamental purposes because of beautiful flowering, lovely attractive foliage and easy to grow. Two triterpenoid saponins were isolated from the ethanolic-aqueous extract from the roots of W. florida “Jean’s Gold” by chromatographic methods. Their structures were determined by using 1D and 2D NMR, and mass spectrometry (HR-ESI-MS in positive mode) as Olean-12-en-28-oic acid, 3-O-β-D-glucopyranosyl-(1®2)-[β-D-xylopyranosyl-(1®4)]-β-D-xylopyranosyl-(1®4)-β-D-xylopyranosyl-(1®3)-α-L-rhamnopyranosyl-(1®2)-β-D-arabinopyranosyloleanolic acid (1), and 3-O-β-D-glucopyranosyl-(1®2)-[β-D-glucopyranosyl-(1®4)]-β-D-xylopyranosyl-(1®4)-β-D-xylopyranosyl-(1®3)-α-L-rhamnopyranosyl-(1®2)-β-D-xylopyranosyloleanolic acid (2). Further experiments should be done in order to achieve a biological overview and establish the relationship between structure and activity of these compounds.

Keywords

Weigela florida “Jean’s Gold”; NMR; HR-ESI-MS; Chromatographic techniques; Triterpenoid saponin

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DOI: https://doi.org/10.34238/tnu-jst.6277

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