Effect of brewing conditions on phytochemicals contents and antioxidant capacities of Angelica keiskei tea

doi:10.3969/j.issn.1004-1524.2018.08.19

›› 2018, Vol. 30 ›› Issue (8): 1408-1413.DOI: 10.3969/j.issn.1004-1524.2018.08.19

• Food Science • Previous Articles Next Articles

Effect of brewing conditions on phytochemicals contents and antioxidant capacities of Angelica keiskei tea

ZHANG Chengcheng, LI Xiaoqiong, ZHENG Meiyu, LIU Daqun^*

Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology of Zhejiang Province, Hangzhou 310021, China

Received:2017-10-30 Online:2018-08-25 Published:2018-08-28

Abstract

Abstract: In the present study, the effects of different brewing conditions, including different brewing temperature and brewing time, on the leaching amount of total phenols, total flavonoids, total chalcone and antioxidant activities of Angelica keiskei tea fermented with cellulase were systematically analyzed. It was shown that the release of phenols, flavonoids, chalcone increased firstly and then decreased as temperature increased from 80 ℃ to 95 ℃, and the maximum contents of phenols, flavonoids and chalcone in tea soup were found under 90 ℃. The contents of phenols, flavonoids and chalcone dissolved in the tea soup increased rapidly in 15 min, and then reached the saturation state. Corelation analysis revealed that antioxidant activity determined by DPPH assays was significantly (P<0.05) positively correlated with contents of phenols, flavonoids and chalcone.

Key words: brewing, phenols, flavonoids

CLC Number:

S571.1
TS272

ZHANG Chengcheng, LI Xiaoqiong, ZHENG Meiyu, LIU Daqun. Effect of brewing conditions on phytochemicals contents and antioxidant capacities of Angelica keiskei tea[J]. , 2018, 30(8): 1408-1413.

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Effect of brewing conditions on phytochemicals contents and antioxidant capacities of Angelica keiskei tea

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