COMPARING OF HOT WATER AND ACID EXTRACTION OF POLYSACCHARIDES FROM PROSO MILLET

被引：0
作者：
Zhu, Aishi [1 ]
Liu, Shanshan [1 ]
Wu, Kanfeng [1 ]
Ren, Chuan [1 ]
Xu, Maoqian [1 ]
机构：
[1] Zhejiang Univ Sci & Technol, Sch Biol & Chem Engn, 318 Liuhe Rd, Hangzhou 310023, Zhejiang, Peoples R China
来源：
CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY | 2017年 / 23卷 / 01期
关键词：
proso millet; polysaccharides; hot water extraction; acid extraction; response surface methodology; RESPONSE-SURFACE METHODOLOGY; FOXTAIL MILLET; OPTIMIZATION;
D O I：
10.2298/CICEQ151011026Z
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The extraction of polysaccharides from proso millet was investigated experimentally using hot water and acid aqueous solution. Response surface methodology, based on a three-level, three- or four-variable Box-Behnken design for hot water extraction or acid extraction, respectively, was employed to obtain the best possible combination of acid concentration, liquid-solid ratio, extraction time, and extraction temperature for maximum polysaccharides yield. The obtained experimental data were fitted to a second-order polynomial equation and analyzed by appropriate statistical methods. The corresponding optimum extraction conditions of each method were obtained. Under the optimum conditions, the experimental yield was well in close agreement with the predicted value by the model. The results showed that the polysaccharides yield of acid extraction was 4213 mg g(-l), significantly higher than 20.07 mg g(-1) of the yield of hot water extraction, the obtained equation could be used to predict the extraction experimental results.
引用
收藏
页码：141 / 150
页数：10
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