文献类型：期刊文献

中文题名：油茶油脂的超临界CO_2萃取及效果研究

英文题名：Supercritical CO_2 Extraction of the Camellia oleifera Abel Seed Oil and Its Effect

作者：吴红军[1] 聂明[2,3] 杨水平[3] 方学智[2] 王亚萍[2] 姚小华[2]

第一作者：吴红军

机构：[1]国家林业局科技司;[2]中国林科院亚热带林业研究所;[3]西南大学资源环境学院

年份：2009

期号：11

起止页码：61-66

中文期刊名：西南大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：科技问公益专项(200704036);浙江省重大科技专项(2007C12067)

语种：中文

中文关键词：超临界流体萃取;油茶籽油;理化特性

外文关键词：Supercritical fluid extraction; Camellia oleifera seed oil; physio-chemical properties

分类号：S794.4

摘要：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.
Effects of extracting pressure, temperature, CO2 flow rate and seed fineness on the extraction effieiencies of the seed oil of Camellia oleifera Abel by supercritical CO2 extraction and some physio-chemical properties of the product were investigated. The optimized conditions for SFE were as follows, crashed oil-tea seed was sieved under 40 meshes and extracted at 45℃, under a pressure of 5 MPa and with a CO2 flow rate of 35 L/h. The crude SFE oil-tea camellia oil had an acidity value of 0.73 mg/g （KOH）, a peroxide value of 3.51 mmol/kg, an iodine value of 88 and a color value of Y=35 and R=1, being up to the requirements of top grade pressing oil-tea camellia seed oil in GB/T 11765-2003. The crude SFE oil contained more vitamin E（201.5 mg/kg）, β-carotene （51.0 mg/kg） and squalene （211.8 mg/kg） than crude spiral pressing oil and organic extracted oil, whose vitamin E, β-carotene and squalene contents were 182.9 mg/ kg, 36.5 mg/kg and 153.6 mg/kg and 191.4 mg/kg, 39.8 mg/kg and 24.3 mg/kg, respectively.