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2004•Journal of Huaihai Institute of TechnologyRequires access

The Technology of Extracting Flavonoids from Propolis

Qifa Wang

Open publisher page 1 citations

Abstract

The technology of extracting flavonoids from propolis was discussed. The factors that affect the yield were investigated, including the weight ratio of solvent and propolis, the concentration of solvent, the extracting time and temperature. Results showed that 40 ℃, 8∶1 of 80% ethanol to propolis weight ratio and the extracting time of 6 h were optimal. The amount of flavonoids is 21.5% under the optimum conditions. The process was simple and economic with high practicability and efficiency.

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What this paper is about

The technology of extracting flavonoids from propolis was discussed. The factors that affect the yield were investigated, including the weight ratio of solvent and propolis, the concentration of solvent, the extracting time and temperature. Results showed that 40 ℃, 8∶1 of 80% ethanol to propolis weight ratio and the extracting time of 6 h were optimal. The amount of flavonoids is 21.5% under the optimum conditions. The process was simple and economic with high practicability and efficiency.

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Available abstract

The technology of extracting flavonoids from propolis was discussed. The factors that affect the yield were investigated, including the weight ratio of solvent and propolis, the concentration of solvent, the extracting time and temperature. Results showed that 40 ℃, 8∶1 of 80% ethanol to propolis weight ratio and the extracting time of 6 h were optimal. The amount of flavonoids is 21.5% under the optimum conditions. The process was simple and economic with high practicability and efficiency.

Key concepts: Propolis, Yield (engineering), Chemistry, Solvent, Ethanol, Food science, Chromatography, Organic chemistry

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