冷榨胡萝卜籽油酸法脱胶工艺优化

对冷榨胡萝卜籽油酸法脱胶工艺进行了优化研究。通过单因素试验，选择柠檬酸作为脱胶用酸。分析酸的添加量、水的添加量、脱胶温度及脱胶时间这4个试验因素对冷榨胡萝卜籽油酸法脱胶率的影响，以及两两试验因素间对其脱胶率的影响。经单因素和响应面优化试验得出，影响酸法脱胶率的顺序为水的添加量＞酸的添加量＞脱胶温度＞脱胶时间。当柠檬酸的添加量0.25%、水的添加量3%、脱胶温度59 ℃、脱胶时间29 min时，脱胶率最高，此时冷榨胡萝卜籽油的酸法脱胶率为70.20%，与模型预测值70.98%接近，表明此工艺较为可靠，有一定的参考价值。 

Optimization of Oleic Acid Degumming Process for Cold Pressed Carrot Seeds

Degumming process of cold pressed carrot seed oleic acid was optimized.Citric acid was selected as degumming acid by single factor experiment.Effects of four experimental factors，amount of acid，amount of water，temperature and time of degumming，on degumming rate of cold pressed carrot seed oleic acid method were analyzed，as well as effects of two experimental factors on degumming rate.According to single factor and response surface optimization experiments，the order affecting degumming rate of acid method was as follows:amount of water added>amount of acid added>degumming temperature>degumming time.Degumming rate was the highest when amount of acid was 0.25%，amount of water was 3%，degumming temperature was 59 ℃，and degumming time was 29 min.At that time，degumming rate of cold pressed carrot seed oil by acid method was 70.20%，which was close to predicted value of model of 70.98%，indicating that this process was more reliable and had certain reference value.