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18.97.9.175
18.97.9.175
산처리 옥수수 전분을 이용한 cyanoethyl starch 의 제조 특성
The properties of cyanoethyl starch after acid treatment of native corn starch using reinforced corrugating medium
조용민 , 신윤섭 , 정문기 ( Yong Min Cho , Yoon Sub Shin , Moon Ki Jeong )
응용화학 vol. 2 iss. 1 480-483(4pages)
UCI I410-ECN-0102-2009-570-007308277
This article is 4 pages or less.

In order to develop modified starch using reinforced corrugating medium, this study carried out to decrease reaction time and simplify process cyanoethylation of starch after acid treatment of native corn starch. Native corn straches(81g oven dried) were reacted with 150mL of 5% aqueous hydrochloric acid at 40℃ for 30minutes. Acid treated starches(ATS) were cyanoethylated to the 0.1 to 0.4 ratios AN/ATS under alkali condition(pH 12) at 40℃. The degree of substitution(DS) of cyanoethylated starches was 0.003∼0.019 with reaction times(30, 60 and 120 minutes). The preparation of handsheets has been with 1%, 2% and 3% of CES add levels with DS, respectively. The strength properties of handsheets added CES showed a tendency to increase in comparison with untreated handsheet, especially, the compression strength(ring crush) or handsheets was highest in 3% add level of DS 0003 CES.

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