响应面法优化黄秋葵超微粉制备工艺

Preparation Technique Optimization of Okra Submicron Powder by Response Surface Method

以吉林地区种植的新鲜优质黄秋葵为原料,制作黄秋葵超微粉,通过单因素试验,研究粉碎时间、压力、分级频率对黄秋葵超微粉品质的影响,并利用响应面法对黄秋葵超微粉制备工艺进行优化。结果表明,黄秋葵超微粉制备的最佳工艺参数为:粉碎时间20 min,压力200 Pa,分级频率25 Hz,在该条件下进行3次平行试验,对应的粉经大小为1μm,与模型预测值基本符合。采用响应面法优化黄秋葵超微粉的工艺参数具有一定的可行性。

Okra submicron powder was prepared with fresh okra from Jilin area as raw material,the effect of grinding time,pressure and graded frequency on the quality of okra submicron powder was investigated by single factor test,and the preparation technique was optimized by Box-Behnken design.The results showed that the optimal technique was as follows:grinding time 20 min,pressure 200 Pa,classification frequency 25 Hz.The three parallel tests were carried out,and the size of the submicron powder was 1μm,which was basically consistent with the model prediction value.Which suggested the optimization of okra submicron powder preparation parameters by response surface methodology was feasible.