Phenolic compositions and antioxidant attributes of leaves and stems from three inbred varieties of Lycium chinense Miller harvested at various times

被引：38

作者：

Liu, Shih-Chuan ^{[1
,2
]}

Lin, Jau-Tien ^{[3
,4
]}

Hu, Chao-Chin ^{[1
,2
]}

Shen, Bo-Yan ^{[1
,2
]}

Chen, Ting-Yo ^{[3
,4
]}

Chang, Ya-Ling ^{[5
]}

Shih, Chia-Huing ^{[5
]}

Yang, Deng-Jye ^{[1
,2
,6
]}

机构：

[1] Chung Shan Med Univ, Dept Hlth Diet & Ind Management, 110 Sec 1,Jianguo N Rd, Taichung 40201, Taiwan

[2] Chung Shan Med Univ Hosp, Dept Nutr, 110 Sec 1,Jianguo N Rd, Taichung 40201, Taiwan

[3] Chung Shan Med Univ, Dept Med Appl Chem, 110 Sec 1,Jianguo N Rd, Taichung 40201, Taiwan

[4] Chung Shan Med Univ Hosp, Dept Med Educ, 110 Sec 1,Jianguo N Rd, Taichung 40201, Taiwan

[5] Council Agr, Miaoli Dist Agr Res & Extens Stn, Execut Yuan 261, Gongguan Township 36346, Miaoli County, Taiwan

[6] China Med Univ, Dept Nutr, 91 Hsueh Shih Rd, Taichung 40402, Taiwan

来源：

FOOD CHEMISTRY | 2017年 / 215卷

关键词：

Antioxidant activity; Harvest time; Lycium chinense Miller; Phenolic composition; EXTRACTS; FLAVONOIDS; CAPACITY; FRUITS; POLYPHENOLS; COMPONENTS;

D O I：

10.1016/j.foodchem.2016.06.072

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Antioxidant components and properties (assayed by scavenging DPPH radicals, TEAC, reducing power, and inhibiting Cu2+-induced human LDL oxidation) of leaves and stems from three inbred varieties of Lycium chinense Miller, namely ML01, ML02 and ML02-TY, harvested from January to April were studied. Their flavonoid and phenolic acid compositions were also analyzed by HPLC. For each variety, the leaves and stems collected in higher temperature month had higher contents of total phenol, total flavonoid and condensed tannin. Contents of these components in the samples collected in different months were in the order: April (22.3 degrees C) > March (18.0 degrees C) > January (15.6 degrees C) > February (15.4 degrees C). Antioxidant activities of the leaves and stems for all assays also showed similar trends. The samples from different varieties collected in the same month also possessed different phenolic compositions and contents and antioxidant activities. Their antioxidant activities were significantly correlated with flavonoid and phenolic contents. (C) 2016 Published by Elsevier Ltd.

引用

页码：284 / 291

页数：8

共 31 条

[1] Effect of harvest date and cultivar on Cichorium intybus yield components in north Italy [J].