|Table of Contents|

Extraction of Flavonoids From Walnut Leaves and Its Antioxidant Activity

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年19
Page:
94-99
Research Field:
Publishing date:

Info

Title:
Extraction of Flavonoids From Walnut Leaves and Its Antioxidant Activity
Author(s):
DU JuanCHEN ZixinXIE Chunyan
(College of Life Sciences,Langfang Normal University,Langfang,Hebei 065000)
Keywords:
flavonoidsethanolreflux extractionanti oxidation
PACS:
-
DOI:
10.11937/bfyy.20220943
Abstract:
Taking walnut leaf as test material, the effects of extraction time,extraction temperature,liquid-solid ratio and ethanol concentration on the extraction rate of flavonoids in walnut leaf were studied by using ethanol reflux extraction method,and the extraction conditions were optimized,in order to provide reference for the development and utilization of flavonoids in walnut leaf.The results showed that the optimum conditions for extracting flavonoids from walnut leaves by ethanol reflux extraction were extraction time 3 hours,extraction temperature 60 ℃,liquid-solid ratio 50∶1 mL·g-1,ethanol concentration 80%,and the maximum amount of flavonoids extracted was 20.50 mg · g-1.The flavonoids extract had a stronger antioxidant capacity,although its scavenging rate of DPPH free radicals and total antioxidant capacity were not as good as those of vitamin C.

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Last Update: 2022-12-13