Optimization of Extraction Condition of Polysaccharide from the Episperm of Ginkgo biloba
SUN Tong
SHI Zhaoning
NIE Shuhuan
WANG Yiqiang
LI Meng
Abstract：Objective:To explore the effects of different factors on the extraction efficiency of polysaccharides from episperm of Ginkgo biloba and provide theoretical support for further utilization of episperm of Ginkgo biloba resources.Method:Polysaccharides were extracted from the episperm of Ginkgo biloba using the method of ultrasound water extraction assisted with enzyme and alcohol precipitation while removing lipids and phenolic acids from the episperm.y The effects of liquid to material ratio,extraction temperature,extraction time,and extraction frequency on the extraction rate of polysaccharides were studied and the extraction conditions using Box-Behnken response surface methodology was optimized.Conclusion:According to the extraction method of this study,the optimal extraction conditions for the polysaccharide from the episperm of Ginkgo biloba are a liquid to material ratio of 29.1∶1,extraction temperature of 87.8℃,and extraction time of 2.88 hours,under these conditions,the extraction rate is 11.67％±0.11％.This method can effectively remove toxic substances such as phenolic acids from the episperm of Ginkgo biloba while ensuring a certain extraction rate,providing a certain technical reference for the recycling and utilization of episperm of Ginkgo biloba.
Keywords：episperm of Ginkgo bilobaresponse surface optimizationextraction conditionspolysaccharide of Ginkgo biloba
Publication Date：2024-10-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：7( 27-33 )