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首页> 外文期刊>Science Journal of Chemistry >Dextrose Equivalent Analysis of Acid Hydrolysed Corn and Cassava Starch Sourced from Ghana
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Dextrose Equivalent Analysis of Acid Hydrolysed Corn and Cassava Starch Sourced from Ghana

机译：从加纳的酸水解玉米和木薯淀粉的右旋糖等同分析

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The use of acid hydrolysis to convert starch into dextrose can be difficult and time-consuming. The process requires high acidic medium and temperature which tends to contaminate the end-product hydrolysate. Therefore, this research was carried out to obtain optimum conditions necessary to produce a high and quality Dextrose Equivalent by varying the initial starch concentration and acid volume. The mass of corn and cassava starch and the total hydrochloric acid volume used for the hydrolysis ranged from 100 to 400 g and 1-3 liters respectively. The results showed that the optimum conditions for hydrolyzing the two starch types to Dextrose were within a temperature range of 100°C-120°C, 12 w/w% starch concentration, 4 atmospheric pressure and 30 minutes operating time. The optimum conditions produced a Dextrose Equivalent of 79.80% and 78.66% for cassava and corn starch respectively. The amount of dextrose produced in the process is a function of temperature, pressure, acid volume, operating time and initial starch concentration. Experimental results also confirmed an increase in pH of the hydrolysate with a temperature rise, and this influenced the Dextrose quality. The outcomes provided new findings to complement existing outcomes on how initial starch concentration and acid volume affect Dextrose Equivalent by acid-type hydrolysis.
机译：使用酸水解将淀粉转化成葡萄糖可能是难以且耗时的。该方法需要高酸性介质和温度，倾向于污染最终产物水解产物。因此，进行该研究以获得通过改变初始淀粉浓度和酸体积产生高和质量葡聚糖等同物所需的最佳条件。玉米和木薯淀粉的质量和用于水解的总盐酸体积分别为100至400g和1-3升。结果表明，将两个淀粉类型水解成葡萄糖的最佳条件在100℃-120℃，12W / W％淀粉浓度，4个大气压和30分钟的操作时间内的温度范围内。最佳条件分别产生了木薯和玉米淀粉的葡萄糖当量为79.80％和78.66％。该方法产生的葡萄糖量是温度，压力，酸体积，操作时间和初始淀粉浓度的函数。实验结果还证实了温度升高的水解产物pH的pH值，这影响了葡萄糖质量。结果提供了新的发现，以补充初始淀粉浓度和酸体积如何影响酸型水解的葡萄糖量的现有结果。

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