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Study on the Extraction Technology of Total Flavonoids from Polygonum capitatum

Shi Zhong

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Abstract

[Objective] To study the extraction technology of flavonoids in Polygonum capitatum.[Method] The optimum extraction conditions of flavonoids in Polygonum capitatum were investigated by single factor test and orthogonal experiment.[Results] The optimum conditions were as follows: ethanol solvents 40%,ratio of liquid to material 1∶20,extraction at 80 ℃ for 2 hours and extracting 3 times.By the above conditions,the yield and purity of total flavonoids were up to 8.304% and 52.10% respectively.[Conclusion] The obtained extraction technique is accurate and feasible.

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What this paper is about

[Objective] To study the extraction technology of flavonoids in Polygonum capitatum.[Method] The optimum extraction conditions of flavonoids in Polygonum capitatum were investigated by single factor test and orthogonal experiment.[Results] The optimum conditions were as follows: ethanol solvents 40%,ratio of liquid to material 1∶20,extraction at 80 ℃ for 2 hours and extracting 3 times.By the above conditions,the yield and purity of total flavonoids were up to 8.304% and 52.10% respectively.[Conclusion] The obtained extraction technique is accurate and feasible.

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Available abstract

[Objective] To study the extraction technology of flavonoids in Polygonum capitatum.[Method] The optimum extraction conditions of flavonoids in Polygonum capitatum were investigated by single factor test and orthogonal experiment.[Results] The optimum conditions were as follows: ethanol solvents 40%,ratio of liquid to material 1∶20,extraction at 80 ℃ for 2 hours and extracting 3 times.By the above conditions,the yield and purity of total flavonoids were up to 8.304% and 52.10% respectively.[Conclusion] The obtained extraction technique is accurate and feasible.

Key concepts: Polygonum, Extraction (chemistry), Chromatography, Yield (engineering), Chemistry, Ethanol, Traditional medicine, Materials science

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