Optimization of Microwave-assisted Extraction of Total Saponins from Rhizoma Polygonati odorati

doi:10.7506/spkx1002-6630-201108033

Abstract

Abstract: Objective: To optimize conditions for the ethanol extraction of total saponins (TS) in Rhizoma Polygonati odorati with the assistance of microwave. Methods: The optimization of extraction conditions was performed by single factor and orthogonal array design methods based on TS content of extracts. Results: The optimal extraction conditions were obtained as follows: ethanol concentration 50%, material-to-liquid ratio 1:20 (g/mL) and microwave power 400 W for extraction repeated times for 10 min each time. The average content of TS in dry extracts was 5.414 mg/g under the optimum extracting condition. #br# Conclusion: The optimized extraction process is simple and easy to operate and has good stability.

Key words: microwave, total saponins, Rhizoma Polygonati odorati, extraction

CLC Number:

R284.2

WANG Xiao-lin，YU Li-ying，XIN Jian-juan. Optimization of Microwave-assisted Extraction of Total Saponins from Rhizoma Polygonati odorati[J]. FOOD SCIENCE, 2011, 32(8): 147-150.

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Optimization of Microwave-assisted Extraction of Total Saponins from Rhizoma Polygonati odorati

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