论文部分内容阅读
对油茶油脂的超临界CO2萃取工艺及其理化特性进行研究,据试验结果表明:油茶油脂的超临界CO2最优提取条件为油茶籽仁过40目筛,萃取温度45℃,萃取压力35 MPa,CO2萃取流速为35 L/h.超临界萃取油茶油脂酸值为0.73 mg/g(KOH),过氧化值为3.51 mmol/kg,碘价为88,色值为Y35,R1,达到国标GB 11765-2003规定的压榨一级油标准,其主要营养成份维生素E(201.5 mg/kg)、β-胡萝卜素(51.0 mg/kg)、角鲨烯(211.8 mg/kg)含量均要高于螺旋榨毛油中维生素E(182.9 mg/kg)、β-胡萝卜素(36.5 mg/kg)、角鲨烯(153.6 mg/kg)和石油醚浸提毛油中维生素E(191.4 mg/kg)、β-胡萝卜素(39.8 mg/kg)、角鲨烯(24.3 mg/kg)的含量.
According to the experimental results, the optimum extraction conditions for the supercritical CO2 of Camellia oleifera were as follows: 40-mesh sieve of Camellia oleifera, extraction temperature of 45 ℃, extraction pressure of 35 MPa, supercritical CO2 extraction of oleifera oil and its physicochemical properties. CO2 extraction of 35 L / h.The supercritical fluid extraction of oleifera oil acid value of 0.73 mg / g (KOH), peroxide value of 3.51 mmol / kg, iodine value of 88, the color value of Y35, R1, to GB GB11765 -2003 provides the first grade oil crushing standards, the main nutrients vitamin E (201.5 mg / kg), β-carotene (51.0 mg / kg), squalene (211.8 mg / kg) were higher than the content of spiral Vitamin E (182.9 mg / kg), β-carotene (36.5 mg / kg), squalene (153.6 mg / kg) and vitamin E (191.4 mg / kg) - Carotene (39.8 mg / kg), squalene (24.3 mg / kg).