Process Optimization for Ultrasonic-assisted Extraction of Aucubin from Eucommia ulmoides Oliv. Key Fruits

doi:10.7506/spkx1002-6630-201116017

Abstract

Abstract: Objective: To optimize the conditions for ultrasonic-assisted extraction of aucubin from Eucommia ulmoides Oliv. key fruits. Methods: One-factor-at-a-time method and response surface methodology based on Box-Behnken experimental design were used for process conditions optimization. Results: The optimal extraction conditions were 72.1% aqueous ethanol solution as the extraction solvent, ultrasonic power of 300 W, extraction time of 20.5 min and solid/liquid ratio of 12.3:1 (mL/g). Under these conditions, the extraction yield of aucubin was observed to be 5.91%. Ethanol concentration had the largest impact on the extraction yield of aucubin, followed by solid/liquid ratio and extraction time. Conclusion: Ultrasonic assistance can enhance the extraction of aucubin from Eucommia ulmoides Oliv. key fruits.

Key words: Eucommia ulmoides Oliv. key fruits, aucubin, ultrasonic wave-assisted extraction, response surface methodology

CLC Number:

R284.2

MA Long，YAO Han，SUN Lan-ping，XU Hui. Process Optimization for Ultrasonic-assisted Extraction of Aucubin from Eucommia ulmoides Oliv. Key Fruits[J]. FOOD SCIENCE, 2011, 32(16): 80-84.

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Process Optimization for Ultrasonic-assisted Extraction of Aucubin from Eucommia ulmoides Oliv. Key Fruits

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