CAJ | 학술논문

以甘薯淀粉为原料，采用超声波辅助乙醇碱法制备颗粒状冷水可溶性甘薯淀粉，系统研究了淀粉乳浓度、乙醇浓度、碱用量、超声波功率和超声波时间对冷水可溶淀粉溶解度的影响。在单因素试验基础上，通过 Box -Behnken 响应面优化制备条件，得到最佳的反应条件为：淀粉乳质量浓度4.0 g／100 mL，乙醇体积分数81％，超声波功率为300 W，超声时间22 min。经验证，在最佳条件下，所制得的甘薯淀粉溶解度达到96.38％，回归模型预测值与实测值的相对误差＜1％。研究结果表明，超声波在制备冷水可溶性甘薯淀粉方面有一定的应用前景。
이감서정분위원료，채용초성파보조을순감법제비과립상랭수가용성감서정분，계통연구료정분유농도、을순농도、감용량、초성파공솔화초성파시간대랭수가용정분용해도적영향。재단인소시험기출상，통과 Box -Behnken 향응면우화제비조건，득도최가적반응조건위：정분유질량농도4.0 g／100 mL，을순체적분수81％，초성파공솔위300 W，초성시간22 min。경험증，재최가조건하，소제득적감서정분용해도체도96.38％，회귀모형예측치여실측치적상대오차＜1％。연구결과표명，초성파재제비랭수가용성감서정분방면유일정적응용전경。
Sweet potato starch was utilized as the raw material,and ethanol -alkali method assisted by ultra-sound was used to prepare cold water soluble sweet potato starch in the paper.The effects of starch concentration, ethanol concentration,sodium hydroxide dosage,ultrasonic power and ultrasonic time on the solubility of the final product were investigated.Based on the single factor experiments results,the preparation conditions were optimized through the Box -Behnken response surface method.The best preparation conditions were starch concentration 4.0 g/100 mL,ethanol concentration 81%,ultrasonic power 300 W and ultrasonic time 22 min.The validated solubility of cold water soluble sweet potato starch reached 96.38%,and the relative error between estimating data of regressive model and actual data was less than 1% on the best extraction conditions.The results indicated that ultrasound had application prospects in the preparation of cold water soluble sweet potato starch.