QUALITATIVE AND QUANTITATIVE ANALYSIS OF FLAVONOIDS IN ARTOCARPUS TONKINENSIS LEAVES BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY - MASS SPECTROMETRY (HPLC-MS)
Keywords:
Artocarpus tonkinensis, flavonoids, maesopsin 4-O--Dglucopyranoside, HPLC-MS
Abstract
HPLC-ESI-MS method was used for the identification of the flavonoids and
quantitative determination of the flavonoid constituents in the water extract of
Artocarpus tonkinensis leaves. Seven flavonoids were unambiguously identified
as catechin (1), alphitonin 4-O--D-glucopyranoside (2), maesopsin 4-O--Dglucopyranoside (3), quercetin 3-O--D-glucopyranoside (4), kaempferol-3-O-
-D-glucoside (5), quercetin (6) and kaempferol (7), by comparing their
retention times, UV and ESI-MS spectra with those of the authentic isolated
compounds. Additionally, the main compounds were 2 and 3, with hight yield
(2.86 and 2.45 mg/g, respectively) in this plant leaves.
điểm /
đánh giá
Published
2020-11-16
Issue
Section
RESEARCH AND DEVELOPMENT