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Updated: Jun 29, 2026
Quantitative 31P NMR Analysis of Lignins and Tannins
Published on: August 2, 2021
[Study on hydrolysable tannin constituents of seed of Juglans regia II]
1School of Pharmaceutical, Harbin University of Commerce, Harbin 150076, China. jin-ai-pu@vip.163.com
Objective:
To study hydrolysable tannin constituents of the seed of Juglans regia.
Method:
The chemical constituents were isolated by Diaion HP-20, Toyopaerl HW-40 and MCI gel CHP-20P column chromatogramphy and identified by physicochemical identification and spectral data.
Result:
Six compounds obtained from the 70% ethanol extract were identified as 1, 2, 3, 4, 6-penta-O-galloyl-3-D-glucose (1), rugosin C (2), 1, 2, 3, 6-tetra-O-galloyl-3-D-glugose (3), tellimagrandin II (4), casuarictin (5), 1-degalloylrugosin F (6).
Conclusion:
All compouds were isolated from the seeds of J. regia for the first time.
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