CAJ | 학술논문

为了提高紫甘薯综合利用率，该文以提取色素后的紫甘薯废渣为原料，分别采用水和柠檬酸为提取剂，在不同的料液比、浆料 pH、浸泡时间、浸泡温度下提取淀粉。通过单因素实验和正交试验确定淀粉的最佳提取工艺条件为：料液比1︰4、浆料 pH 5.0、浸提时间2.0 h、浸提温度30℃，此时淀粉提取率为57.49%，淀粉纯度为85.37%。
위료제고자감서종합이용솔，해문이제취색소후적자감서폐사위원료，분별채용수화저몽산위제취제，재불동적료액비、장료 pH、침포시간、침포온도하제취정분。통과단인소실험화정교시험학정정분적최가제취공예조건위：료액비1︰4、장료 pH 5.0、침제시간2.0 h、침제온도30℃，차시정분제취솔위57.49%，정분순도위85.37%。
In order to make full use of purple sweet potato and improve comprehensive utilization rate of the raw material,starch was extracted from purple sweet potato anthocyanins waste residue. Experiments were done using water and 1.25% citric acid as solvent respectively under the conditions of different solid-liquid ratio,pH value of slurry,soaking time and soaking temperature. The optimum extracting conditions of starch obtained by single factor experiment and orthogonal experiment were as follow,ratio of sample weight(g)to solvent volume(ml)was 1︰4,pH value was 5.0,soaking time was 2.0 h and soaking temperature was 30 ℃ . Under these conditions,extraction rate could reach 57.49%,and starch purity was 85.37%.