【摘要】 [目的]为茶油的精加工提供指导。[方法]以机榨毛油为材料,采用单因素及正交试验确定茶油的最佳脱胶、脱酸及脱色条件。[结果]常规水化脱胶可满足茶油的脱胶要求,且对茶油的酸价影响较小,茶油得率较高;水化脱胶的最佳工艺条件为:水和油同时升温至70℃,脱胶时间10 m in,加水量7%;8.78%的NaOH溶液对茶油的脱酸效果最好;最佳脱色条件为:活性炭用量为油重的7%,脱色时间30 m in,脱色温度140℃;同时,试验过程中采用氮气为保护气可防止油脂过氧化值升高。[结论]该研究确定了茶油的最佳脱胶、脱酸及脱色条件。更多还原

【Abstract】 [Objective] The study was to provide the reference for refining camellia oil.[Method] With crude camellia oil as the material,the single and orthogonal tests were taken to determine the optimum conditions of degumming,deacidification and decoloration for camellia oil.[Result] Normal hydrated degumming could satisfy the degumming requirements of camellia oil,and its effect on acid value was little and the yield rate of camellia oil was higher.The optimum technological conditions of hydrated degumming was that the temperature of water and oil increased to 70 ℃ at the same time,degumming time of 10 min and water addition amount of 7%.The deacidification effect of 8.78% NaOH solution on camellia oil was the best.The optimum decoloration condition was that amount of activity carbon was 7% of oil weight,decoloration time of 30 min,decoloration temperature of 140 ℃.It could prevent the increasing of oil peroxide value when N2 was used as protecting gas in test process.[Conclusion] The study determined the optimum conditions of degumming,deacidification and decoloration for camellia oil.更多还原