Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Original papers
Process Optimization of Extraction and Separation of Water-soluble Crude Polysaccharide in Sweet Corn Cob
Jiang-Feng SONGChun-Quan LIUDa-Jing LI
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JOURNAL FREE ACCESS

2012 Volume 18 Issue 5 Pages 631-637

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Abstract

Polysaccharides in sweet corn cob may have many bioactivities. In this study, an efficient ultrasound-assisted extraction (UAE) technique has been developed to recover crude polysaccharides from sweet corn cob (SCCP). Ultrasound power was determined at 250 W based on the single factor test, extraction temperature (40 − 60°C), duration (30 − 60 min) and ratio of volume to weight (20 − 40 mL·g-1) were then chosen to further optimize extraction conditions by response surface methodology (RSM). The statistical analysis revealed that the optimal conditions to obtain the highest yield of SCCP were of 54.7°C, 42.8 min and 27.9 mL·g-1, and the polysaccharide extraction yield (0.56%) obtained from optimized UAE proved its higher efficiency when compared with the conventional method. Also, the results showed that the extraction of polysaccharides followed first-order kinetics model well.

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© 2012 by Japanese Society for Food Science and Technology
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