Phenolic compounds and antioxidant activities of edible flowers of Pyrus pashia

被引：59

作者：

He, Jianmin ^{[1
,2
]}

Yin, Tianpeng ^{[1
]}

Chen, Yang ^{[3
]}

Cai, Le ^{[1
]}

Tai, Zhigang ^{[4
]}

Li, Zhenjie ^{[1
]}

Liu, Chuanshui ^{[1
]}

Wang, Yarong ^{[3
]}

Ding, Zhongtao ^{[1
]}

机构：

[1] Yunnan Univ, Sch Chem Sci & Technol, Minist Educ, Key Lab Med Chem Nat Resources, Kunming 650091, Yunnan, Peoples R China

[2] Baoshan Univ, Sch Resource & Environm, Baoshan 678000, Yunnan, Peoples R China

[3] Zunyi Med Univ, Dept Pharmaceut Sci, Zhuhai 519041, Guangdong, Peoples R China

[4] Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650500, Yunnan, Peoples R China

来源：

JOURNAL OF FUNCTIONAL FOODS | 2015年 / 17卷

基金：

中国国家自然科学基金;

关键词：

Pyrus pashia; Edible flower; Phenolic; Antioxidant; 4-O-Z-coumaroylarbutin; SOLVENT EXTRACTS; CONSTITUENTS; HYDROQUINONE; LEAVES; ACID; RICH;

D O I：

10.1016/j.jff.2015.05.045

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Pyrus pashia flowers are used as edible and medicinal materials in Yunnan Province, China. The antioxidant activities of 85% ethanolic extract of P. pashia flowers and derived soluble fractions were evaluated for the first time using four different test systems. The total phenolic and total flavonoid contents of each fraction were also determined. It was found that the ethyl acetate fraction exhibited the strongest antioxidant effect. An investigation of this flower's chemical constituents was carried out and led to the isolation of a new phenolic glycoside, 4-O-Z-coumaroylarbutin (1), along with twenty-seven other phenolic compounds (2-28). Hydroquinone (13) showed the highest content and powerful activity, which implied that the compound plays an important role in the antioxidant activity of this flower. Thus, P. pashia flowers could serve as a valuable natural antioxidant source for potential application in functional foods. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：371 / 379

页数：9

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