Chemical Constituents and Antibacterial Properties of Indocalamus latifolius McClure Leaves, the Packaging Material for -ZongziReportar como inadecuado




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State Forestry Administration Key Open Laboratory, International Centre for Bamboo and Rattan, Beijing 100102, China



These authors contributed equally to this work.





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Academic Editor: Derek J. McPhee

Abstract The glutinous rice dumpling named -Zongzi- in Chinese is a type of traditional food that is popular in East Asian countries. -Zongzi- is made of glutinous rice and wrapped in the leaves of Indocalamus latifolius McClure as the packaging material. Four new compounds, latifoliusine A 2, 7S,8R syringylglycerol-8-O-4′-sinapyl ether 4-O-β-d-glucopyranoside 7, 7S,8S syringylglycerol-8-O-4′-sinapyl ether 7-O-β-d-glucopyranoside 8, and 7R,8S syringylglycerol-8-O-4′-sinapyl ether 7-O-β-d-glucopyranoside 10, along with six known compounds 1, 3–6 and 9 were isolated from I. latifolius McClure leaves. The structures and relative configurations of the compounds were determined by detailed spectroscopic analysis, high-resolution electrospray ionization mass spectroscopy HRESIMS, heteronuclear single quantum correlation HSQC, heteronuclear multiple bond correlation HMBC, nuclear overhauser enhancement NOE and circular dichroism CD. All of the isolated compounds were screened for their antibacterial activities in vitro. The results indicated that apigenin 6-C-α-l-arabinopyranosyl-8-C-β-d-glucopyranoside 5 and apigenin 7-O,8-C-di-glucopyranoside 6 have antibacterial activities against four bacterial strains Staphylococcus aureus, Bacillus thuringiensis, Escherichia coli and Pseudomonas solanacearum. View Full-Text

Keywords: indocalamus latifolius mcclure; leaf extract; norsesquiterpenoid; 8-4′-oxyneolignan; packaging material; antibacterial property indocalamus latifolius mcclure; leaf extract; norsesquiterpenoid; 8-4′-oxyneolignan; packaging material; antibacterial property





Autor: Jia Sun †, Hang Xun †, Jin Yu †, Feng Tang, Yong-De Yue * and Xue-Feng Guo

Fuente: http://mdpi.com/



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