期刊
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
卷 28, 期 9, 页码 1581-1590出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2018.03.059
关键词
Imperial Chrysanthemum glucoside; Isolation and purification; Antioxidant; Molecular structure
资金
- National Key Project of Research and Development Plan of China [2016YFD0400803]
- key program of the Natural Science Foundation of Tianjin [16JCZDJC34100]
A new glycoside, named as CG-1, was separated from Imperial Chrysanthemum with silica gel column chromatography. The purity was detected by TLC and HPLC. The crystal shape of CG-1 was consisting of a quadrangular and two rectangular pyramids. The analysis of DSC and TGA showed that the melting point of CG-1 crystal was 150.22 degrees C and had good thermal stability. The monosaccharide conformation analysis showed that it was D-glucose. The structure characteristics were compared by FT-IR, NMR spectroscopy and LC-MS and a molecular structure has been deduced which consistent with spectroscopic results. In vitro antioxidant results suggested that the glycoside extracted from Imperial Chrysanthemum could be effectively employed as natural antioxidant in health or functional food. This work is of significance to keep the antioxidant activity in the processing and application of Imperial Chrysanthemum. (C) 2018 Elsevier Ltd. All rights reserved.
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