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Study on Extraction of Flavonoids from Ginkgo biloba Leaves and Antioxidant Action in vitro(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年05期
Page:
156-159
Research Field:
Publishing date:

Info

Title:
Study on Extraction of Flavonoids from Ginkgo biloba Leaves and Antioxidant Action in vitro
Author(s):
LI Hong-jun
Agricultural Technology Promotion Station of Kouqian Town of Yongji County，Yongji，Jilin 132200
Keywords:
Ginkgo biloba eaves; flavonoids; antioxidation; orthogonal test
PACS:
S 567.9
DOI:
-
Abstract:
Taking the leaves of Ginkgo biloba as material,the single factor (solid-liquid ratio，extraction time，extraction temperature，extraction pH) on extraction rate of flavonoids from Ginkgo biloba were studied，using borax-calcium hydroxide water as solvent extraction，and the extraction methods were optimized by orthogonal test；the antioxidation were studied by oil test.The results showed that the effect of flavone content from Ginkgo biloba leaves were in the order：extraction temperature>ratio of liquor to material>extraction time=extraction pH，optimum extraction technology for A1B2C2D2，namely combination of liquid ratio was 1∶30，extraction pH 8，extraction temperature 80℃，the extraction time was 3 h，under the conditions of flavone in Ginkgo bilobaextraction rate was 2.67%.Ginkgo biloba flavonoid on lard oxidation had obvious inhibition effect.With the increasing concentrations of antioxidant properties of extracts，the initial presentation of gradually increasing，when adding 0.20% to achieve the best antioxidant effect，the oxidation resistance of vitamin C as antioxidants；when the extract was added volume continued to increase，the antioxidant effect declined.

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Last Update: 2014-08-22