title: Production of octenyl succinic anhydride-modified waxy corn starch and its characterization.
abstract: The objective of this work is to investigate the effects of reaction conditions on the synthesis of octenyl succinic anhydride (OSA)-modified starch from waxy corn starch and to study the characteristics of the OSA-modified starch as well as its applications. A mathematical model was developed to investigate the influences of various processing condition factors on the production of the OSA-modified waxy corn starch production and predict the optimum reaction conditions. The maximal degree of substitution (DS) of OSA-modified waxy corn starch (0.0204) was predicted to occur when the starch concentration was 31.2%, the pH was 8.6, the reaction temperature was 33.6 degrees C, and the reaction time was 18.7 h. Repeated reactions for producing OSA-modified waxy corn starch were carried out in a 5 m(3) reactor under the optimized conditions for verification of the model. The characteristics of modified waxy corn starch including infrared spectrum, scanning electron microscopy, and pasting property were tested and emulsification capacity of the OSA-modified starch were evaluated as well.
authors.affiliation: Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, People's Republic of China. microliu@gmail.com
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Liu
authors.forename: Yin
authors.initials: Y
authors.lastname: Li
authors.forename: Fengjie
authors.initials: F
authors.lastname: Cui
authors.forename: Lifeng
authors.initials: L
authors.lastname: Ping
authors.forename: Jiangning
authors.initials: J
authors.lastname: Song
authors.forename: Yaniv
authors.initials: Y
authors.lastname: Ravee
authors.forename: Liqun
authors.initials: L
authors.lastname: Jin
authors.forename: Yaping
authors.initials: Y
authors.lastname: Xue
authors.forename: Jianmiao
authors.initials: J
authors.lastname: Xu
authors.forename: Geng
authors.initials: G
authors.lastname: Li
authors.forename: Yajun
authors.initials: Y
authors.lastname: Wang
authors.forename: Yuguo
authors.initials: Y
authors.lastname: Zheng
mesh_terms: D013213:Starch / Q000737:chemistry*; D013387:Succinic Anhydrides / Q000138:chemical synthesis / Q000737:chemistry*; D013696:Temperature; D003313:Zea mays / Q000737:chemistry*
chemical_list: D013387:Succinic Anhydrides; C031801:succinic anhydride; D013213:Starch