|Table of Contents|

Effect of Different Drying Methods on Total Polyphenols，Flavonoids Content and Antioxidant Activity of Rubus corchorifolius L.

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年13
Page:
130-134
Research Field:
Publishing date:

Info

Title:
Effect of Different Drying Methods on Total Polyphenols，Flavonoids Content and Antioxidant Activity of Rubus corchorifolius L.
Author(s):
CHEN Qing; WANG Yuzhu; LIANG Yanqun; WANG Xiaowen; WANG Hongmei; ZHANG Lihua
(College of Life Sciences，Zaozhuang University，Zaozhuang,Shandong 277160)
Keywords:
Rubus corchorifolius L.; drying method; ultrasonic-assisted extraction; antioxidant activity
PACS:
-
DOI:
10.11937/bfyy.20184526
Abstract:
In order to explore the effects of different drying methods on the quality of raspberries，the contents of total polyphenols，flavonoids and antioxidant activity of different drying methods were explored.Ultrasonic-assisted extraction of total polyphenols，flavonoids from the four different drying methods including nature sun drying，hot-air drying，infrared radiation drying and vacuum-freeze drying was evaluated.In addition，the DPPH? and ABTS＋? scavenging capacity of the dried Rubus corchorifolius L. were also determined.The results showed that the contents of total polyphenols and flavonoids in vacuum freeze drying were the highest，which was (2.47±0.29)mg?g-1 and (2.06±0.61)mg?g-1 in vacuum freeze drying，respectively.The dry methods could reduce the DPPH? and ABTS+? scavenging capacity.DPPH? and ABTS＋? half inhibitory concentration IC50 of the vacuum freeze drying Rubus corchorifolius L. were (4.53±0.04)mg?mL-1 and (5.17±0.12)mg?mL-1，respectively.Based on these results，vacuum freeze drying maybe the most suitable method for preserving polyphenols，flavonoids and antioxidant activity in Rubus corchorifolius L..

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Last Update: 2019-08-02