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Extration technology of quercetin in Herba Bupleuri by microwave

Long Wei

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Abstract

OBJECTIVE To extract quercetin in Herba Bupleuri using microwave assist extraction.METHODS The factors including extraction solvent,material grade size,microwave time and power,solid-liquid ratio and pH which influence extracted rate were inspected.RESULTS The optimized conditions of microwave assist extraction were as follows: extraction solvent was 60% alcohol,the material size was 80-120 meshed,pH was 7-8,solid-liquid was 1:30.The power of extraction irradiation was 480 W and the extraction time was 3 min.The extraction yield of quercetin was 2.8-3.0 mg·g-1,23.5% higher than heat recirculation for 2 hours.CONCLUSION Microwave assist extraction is a rapid and efficient extraction technique for extraction of quercetin in Herba Bupleuri.

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What this paper is about

OBJECTIVE To extract quercetin in Herba Bupleuri using microwave assist extraction.METHODS The factors including extraction solvent,material grade size,microwave time and power,solid-liquid ratio and pH which influence extracted rate were inspected.RESULTS The optimized conditions of microwave assist extraction were as follows: extraction solvent was 60% alcohol,the material size was 80-120 meshed,pH was 7-8,solid-liquid was 1:30.The power of extraction irradiation was 480 W and the extraction time was 3 min.The extraction yield of quercetin was 2.8-3.0 mg·g-1,23.5% higher than heat recirculation for 2 hours.CONCLUSION Microwave assist extraction is a rapid and efficient extraction technique for extraction of quercetin in Herba Bupleuri.

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Available abstract

OBJECTIVE To extract quercetin in Herba Bupleuri using microwave assist extraction.METHODS The factors including extraction solvent,material grade size,microwave time and power,solid-liquid ratio and pH which influence extracted rate were inspected.RESULTS The optimized conditions of microwave assist extraction were as follows: extraction solvent was 60% alcohol,the material size was 80-120 meshed,pH was 7-8,solid-liquid was 1:30.The power of extraction irradiation was 480 W and the extraction time was 3 min.The extraction yield of quercetin was 2.8-3.0 mg·g-1,23.5% higher than heat recirculation for 2 hours.CONCLUSION Microwave assist extraction is a rapid and efficient extraction technique for extraction of quercetin in Herba Bupleuri.

Key concepts: Chemistry, Extraction (chemistry), Chromatography, Quercetin, Microwave power, Microwave, Yield (engineering), Solvent

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