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Ultrasonic and Microwave-assisted Extraction of Emodin from RADIX POLYGONI MULTIFLORI

Rong Wang

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Abstract

[Objective] To study the optimal conditions for extracting emodin from RADIX POLYGONI MULTIFLORI with the assistance of ultrasonic-microwave methods.[Method] The orthogonal test of L9(34) was used to inspect the effects of solid-liquid ratio,ethanol concentration,extraction time and microwave power on the extraction yield of emodin.[Result] the optimum extraction conditions were 1:10 solid-liquid ratio,85% ethanol concentration,40 min extraction time,and 60W extraction power.Under the optimal extraction conditions,the extracting yield of emodin was 2.65 mg/g,the added recovery of the method was 96.4%,RSD was 4.05%.[Conclusion] The extraction of emodin from RADIX POLYGONI MULTIFLORI with ultrasonic and microwave-assisted method was fast with high quality and extraction rate.

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What this paper is about

[Objective] To study the optimal conditions for extracting emodin from RADIX POLYGONI MULTIFLORI with the assistance of ultrasonic-microwave methods.[Method] The orthogonal test of L9(34) was used to inspect the effects of solid-liquid ratio,ethanol concentration,extraction time and microwave power on the extraction yield of emodin.[Result] the optimum extraction conditions were 1:10 solid-liquid ratio,85% ethanol concentration,40 min extraction time,and 60W extraction power.Under the optimal extraction conditions,the extracting yield of emodin was 2.65 mg/g,the added recovery of the method was 96.4%,RSD was 4.05%.[Conclusion] The extraction of emodin from RADIX POLYGONI MULTIFLORI with ultrasonic and microwave-assisted method was fast with high quality and extraction rate.

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Available abstract

[Objective] To study the optimal conditions for extracting emodin from RADIX POLYGONI MULTIFLORI with the assistance of ultrasonic-microwave methods.[Method] The orthogonal test of L9(34) was used to inspect the effects of solid-liquid ratio,ethanol concentration,extraction time and microwave power on the extraction yield of emodin.[Result] the optimum extraction conditions were 1:10 solid-liquid ratio,85% ethanol concentration,40 min extraction time,and 60W extraction power.Under the optimal extraction conditions,the extracting yield of emodin was 2.65 mg/g,the added recovery of the method was 96.4%,RSD was 4.05%.[Conclusion] The extraction of emodin from RADIX POLYGONI MULTIFLORI with ultrasonic and microwave-assisted method was fast with high quality and extraction rate.

Key concepts: Emodin, Extraction (chemistry), Radix (gastropod), Chromatography, Yield (engineering), Microwave power, Microwave, Materials science

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Ultrasonic and Microwave-assisted Extraction of Emodin from RADIX POLYGONI MULTIFLORI — Research Paper | ScholarLens