|Table of Contents|

Extraction and Antioxidant Activity of Flavonoids From Different Tissues of Crepidiastrum denticulatum

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年17
Page:
100-104
Research Field:
Publishing date:

Info

Title:
Extraction and Antioxidant Activity of Flavonoids From Different Tissues of Crepidiastrum denticulatum
Author(s):
TIAN Yunfang1; 2; CAO Tingting1; 2; ZHOU Mingmei1; 2; CHEN Lipei1; 2; ZHANG Yaoguang1; 2; LIU Yumiao1; 2
(1.College of Life Science，Zhengzhou Normal University，Zhengzhou,Henan 450044；2.Zhengzhou Key Laboratory of Ornamental and Medicinal Resources Plants，Zhengzhou,Henan 450044)
Keywords:
Crepidiastrum denticulatum; total flavonoids; antioxidant activity; free radicals
PACS:
-
DOI:
10.11937/bfyy.20220539
Abstract:
Taking Crepidiastrum denticulatum as test merterial，the total flavonoids in the roots，old stems，tender stems，leaves，flower buds，flowers and seeds of Crepidiastrum denticulatum were extracted by ultrasonic extraction with 60% ethanol，the contents of total flavonoids and antioxidant activities such as DPPH，hydroxyl radical scavenging activity and reducing power were determined by spectrophotometer.The contents of total flavonoids in different parts of the plant were determined and their antioxidant activities were compared,in order to provide reference for the development and utilization of the medicinal resources of Crepidiastrum denticulatum.The results showed that the total flavonoid contents of seed extract(3.75 mg?g-1) were higher than those of leaves (2.14 mg?g-1)，buds (0.93 mg?g-1)，blooming flowers (0.69 mg?g-1)，tender stems (0.44 mg?g-1)，roots (0.34 mg?g-1) and old stems (0.17 mg?g-1).The scavenging capacity of DPPH free radical，hydroxyl free radical and Fe2+ reduction capacity of the extracts from different tissues were also different，and there was a dose-effect relationship between the antioxidant activity and the content of total flavonoids in the extracts.The antioxidant activity of total flavonoids in seeds was the strongest.For the purpose of extracting flavonoids，Crepidiastrum denticulatum was suitable for harvesting in the mature stage of seeds.Because the yield of leaves was higher than that of seeds，the content of flavonoids was the second to the seed，so it is also possible to select the period of vigorous leaf growth to harvest.

References:

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Last Update: 2022-11-22