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2014•Biotechnology(Faisalabad)Requires access

Optimised Extraction and Antioxidant of Polyphenols from Peony Flowers

Suyin Zhu

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Abstract

Objective:In order to investigate the optimum polyphenols extraction conditions and examine the antioxidant of polyphenols from peony flowers.Method:Based on the single factor experimental analysis,the central composite design combined with response surface methodology was applied to optimise polyphenols extraction and the DPPH free radical scavenging was used to determine the antioxidant.Result:The optimal conditions were extraction temperature of 70 ℃,extraction time of 44min and ethanol concentration of 48.7%.Under the optimized experimental conditions,the actual yields of polyphenols reached 130.672 mgGAE/mL.DPPH free radical scavenging were stronger than BHT,weaker than Vc.Conclusion:The optimum extraction conditions can improve the yield of polyphenols from peony flowers and the polyphenols have strong antioxidant activity.

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What this paper is about

Objective:In order to investigate the optimum polyphenols extraction conditions and examine the antioxidant of polyphenols from peony flowers.Method:Based on the single factor experimental analysis,the central composite design combined with response surface methodology was applied to optimise polyphenols extraction and the DPPH free radical scavenging was used to determine the antioxidant.Result:The optimal conditions were extraction temperature of 70 ℃,extraction time of 44min and ethanol concentration of 48.7%.Under the optimized experimental conditions,the actual yields of polyphenols reached 130.672 mgGAE/mL.DPPH free radical scavenging were stronger than BHT,weaker than Vc.Conclusion:The optimum extraction conditions can improve the yield of polyphenols from peony flowers and the polyphenols have strong antioxidant activity.

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Available abstract

Objective:In order to investigate the optimum polyphenols extraction conditions and examine the antioxidant of polyphenols from peony flowers.Method:Based on the single factor experimental analysis,the central composite design combined with response surface methodology was applied to optimise polyphenols extraction and the DPPH free radical scavenging was used to determine the antioxidant.Result:The optimal conditions were extraction temperature of 70 ℃,extraction time of 44min and ethanol concentration of 48.7%.Under the optimized experimental conditions,the actual yields of polyphenols reached 130.672 mgGAE/mL.DPPH free radical scavenging were stronger than BHT,weaker than Vc.Conclusion:The optimum extraction conditions can improve the yield of polyphenols from peony flowers and the polyphenols have strong antioxidant activity.

Key concepts: Polyphenol, DPPH, Extraction (chemistry), Antioxidant, Response surface methodology, Chemistry, Scavenging, Yield (engineering)

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Optimised Extraction and Antioxidant of Polyphenols from Peony Flowers — Research Paper | ScholarLens