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ZJUS-B
Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology)  2006, Vol. 7 Issue (10): 4-    DOI: 10.1631/jzus.2006.B0800
    
Synthesis and paste properties of octenyl succinic anhydride modified early Indica rice starch
SONG Xiao-yan, CHEN Qi-he, RUAN Hui, HE Guo-qing, XU Qiong
Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310029, China
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Abstract  Octenyl succinic anhydride (OSA) modified early Indica rice starch was prepared in aqueous slurry systems using response surface methodology. The paste properties of the OSA starch were also investigated. Results indicated that the suitable parameters for the preparation of OSA starch from early Indica rice starch were as follows: reaction period 4 h, reaction temperature 33.4 °C, pH of reaction system 8.4, concentration of starch slurry 36.8% (in proportion to water, w/w), amount of OSA 3% (in proportion to starch, w/w). The degree of substitution was 0.0188 and the reaction efficiency was 81.0%. The results of paste properties showed that with increased OSA modification, the starch derivatives had higher paste clarity, decreased retrogradation and better freeze-thaw stability.

Key words： Early Indica rice      OSA starch      Response surface methodology      Paste properties     
Received: 20 December 2005     
CLC:  TS236.9  
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SONG Xiao-yan
CHEN Qi-he
RUAN Hui
HE Guo-qing
XU Qiong
Cite this article:

SONG Xiao-yan, CHEN Qi-he, RUAN Hui, HE Guo-qing, XU Qiong. Synthesis and paste properties of octenyl succinic anhydride modified early Indica rice starch. Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology), 2006, 7(10): 4-.

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http://www.zjujournals.com/xueshu/zjus-b/10.1631/jzus.2006.B0800     OR     http://www.zjujournals.com/xueshu/zjus-b/Y2006/V7/I10/4

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