Optimization of Ultrasonic-Assisted Extraction Process for Procyanidins from Sorghum Episperm by Response Surface Methodology

doi:10.7506/spkx1002-6630-201224006

Abstract

Abstract:

Response surface methodology was employed to optimize conditions for the ultrasonic-assisted extraction of procyanidins from sorghum episperm. The optimal extraction conditions were found to be extraction at 56 ℃ for 65 min with an ultrasonic power of 60 W. Under these conditions, the theoretical value of maximum procyanidin yield was 1.789%, and the actual value was (1.764±0.006)%, which was 98.6% of the theoretical value and increased nearly 2-fold compared with that obtained without ultrasonic treatment ((0.906 ± 0.033)%).

Key words: sorghum episperm, procyanidins, ultrasonic-assisted extraction, response surface methodology

CLC Number:

TS201.9

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