FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (10): 124-130.doi: 10.7506/spkx1002-6630-201210026

• Processing Technology • Previous Articles     Next Articles

Optimization on Preparation Technology of Super Absorbent Resin Polymerized by Microwave with Gelatinized Starch from Canna edulis Ker and Acrylic Acid through Response Surface Methodology

HUANG Gan-hui1,GU Qian-hui1,GU Zhen-yu2   

  1. (1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; 2. Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310035, China)
  • Online:2012-05-25 Published:2012-05-07

Abstract: The synthetic conditions of super absorbent resin from Canna edulis Ker starch and acrylic acid under microwave irradiation were studied. Based on single factor test, response surface methodology (RSM) was applied to investigate the effects of ratios of acrylic acid to starch, dose of initiator, neutralization ratio of acrylic acid by NaOH on the water-absorbent rate. The structure of co-polymers have been analyzed. The optimum preparation conditions were mass ratio of monomer to starch at 8.2:1, 2.8% initiator (accounts for the proportion of starch quality), neutralization ratio of acrylic acid at 80.1%. In this case, the water absorbency was 769 g/g. Infrared scanning spectra indicated that co-polymer had characteristic hydrophilic group such as carboxyl group, amide group.

Key words: Canna edulis Ker starch, super absorbent resin, graft copolymer, response surface methodology

CLC Number: