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Preparation of Octenyl Succinic Anhydride Modified Broken Rice Starch

XU Chun-ze

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Abstract

Broken rice starch was modified with octenyl succinic anhydride in aqueous slurry system.The modification process was optimized by one-factor-at-a-time and orthogonal array design methods to achieve maximum degree of substitution(DS).The results showed that the optimal process conditions were found to be: starch slurry concentration 30%,pH 8.5,reaction time 5 h,and reaction temperature 35 ℃.Under the optimal conditions,the degree of substitution was 0.01445.

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What this paper is about

Broken rice starch was modified with octenyl succinic anhydride in aqueous slurry system.The modification process was optimized by one-factor-at-a-time and orthogonal array design methods to achieve maximum degree of substitution(DS).The results showed that the optimal process conditions were found to be: starch slurry concentration 30%,pH 8.5,reaction time 5 h,and reaction temperature 35 ℃.Under the optimal conditions,the degree of substitution was 0.01445.

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Available abstract

Broken rice starch was modified with octenyl succinic anhydride in aqueous slurry system.The modification process was optimized by one-factor-at-a-time and orthogonal array design methods to achieve maximum degree of substitution(DS).The results showed that the optimal process conditions were found to be: starch slurry concentration 30%,pH 8.5,reaction time 5 h,and reaction temperature 35 ℃.Under the optimal conditions,the degree of substitution was 0.01445.

Key concepts: Succinic anhydride, Slurry, Starch, Chemistry, Aqueous solution, Reaction conditions, Degree (music), Organic chemistry

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