CAJ | 학술논문

为充分利用碎米资源，介绍碎米经碱法提取淀粉并纯化后，以醋酸酐为酯化剂，在碱性条件下制取低取代度的碎米淀粉乙酸酯；介绍碎米淀粉乙酸酯在食品、纺织、造纸等工业中的优良特性，并对碎米淀粉乙酸酯制备工艺的因素进行分析，如醋酸酐用量、温度、 pH、反应时间等。从单因素影响考虑，分别在醋酸酐用量10.5%、 pH 10、反应温度35℃、反应时间2 h时，取代度最大。
위충분이용쇄미자원，개소쇄미경감법제취정분병순화후，이작산항위지화제，재감성조건하제취저취대도적쇄미정분을산지；개소쇄미정분을산지재식품、방직、조지등공업중적우량특성，병대쇄미정분을산지제비공예적인소진행분석，여작산항용량、온도、 pH、반응시간등。종단인소영향고필，분별재작산항용량10.5%、 pH 10、반응온도35℃、반응시간2 h시，취대도최대。
In order to make full use of broken-rice resources, after introducing the broken-rice starch extracted at alkaline environment and purified, acetic anhydride was used as esterifying agent, under alkaline conditions for preparing low substitution degree of broken-rice starch acetate. The characteristics of broken-rice starch acetate was introduced, the factors and preparation of broken-rice starch acetates were analyzed. In consideration of the influence from the single factor, when acetic anhydride’s adding amount was 10. 5%, pH was 10, reaction temperature was 35 ℃, reaction time was 2 h, the substitution of starch acetate was maximum.