Process Optimization of Extraction and Separation of Water-soluble Crude Polysaccharide in Sweet Corn Cob
文献类型： 外文期刊
作者： Song, Jiang-Feng 1 ; Liu, Chun-Quan 1 ; Li, Da-Jing 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Farm Prod Proc, Nanjing 210014, Jiangsu, Peoples R China
关键词： sweet corn cob;polysaccharides;UAE;effect
期刊名称：FOOD SCIENCE AND TECHNOLOGY RESEARCH （ 影响因子：0.668； 五年影响因子：0.895 ）
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收录情况： SCI
摘要： 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℃), 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℃, 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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