Optimization of Ultrasonic/Microwave-Assisted Extraction of Kafirin from Sorghum Corn Flour by Response Surface Methodology

doi:10.7506/spkx1002-6630-201404005

Abstract

Abstract:

In this study, a high-yield method for the extraction of kafirin from sorghum corn flour was developed by using
an integrated ultrasonic and microwave reaction system. On the basis of single-factor experiments, the response surface
methodology was used to optimize the extraction process. The results indicated that the optimum conditions for extraction
were as follows: ultrasonication for 26 min and subsequent microwave treatment for 260 s at a solvent-to-solid ratio of 10:1
(mL/g). Under these conditions, the extraction yield of kafirin was experimentally observed to be 6.79%, which was close to
the theoretically predicted value. This study can provide theoretical evidence for practical production.

Key words: kafirin, ultrasonic/microwave-assisted extraction, response surface methodology

CLC Number:

TS210.4

LIU Zhen-chun, GENG Cun-hua, SUN Hui-juan, HAN Yu. Optimization of Ultrasonic/Microwave-Assisted Extraction of Kafirin from Sorghum Corn Flour by Response Surface Methodology[J]. FOOD SCIENCE, 2014, 35(4): 21-25.

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