加工工序对油茶籽油活性物质含量及理化性质的影响  

Effects of processing operations on the content of bioactive constituents and physical-chemical properties of oil-tea camellia seed oil

作　　者：刘存存[1,2] 姚小华[1] 方学智[1] 张慧敏[3] 李宝才[2] 王亚萍[1] 王开良[1] 

机构地区：[1]中国林业科学研究院亚热带林业研究所,浙江富阳311400 [2]昆明理工大学生命科学与技术学院,云南昆明650000 [3]南方医科大学南方医院,广东广州510515

出　　处：《广东农业科学》2011年第6期100-102,112,共4页Guangdong Agricultural Sciences

基　　金：林业行业公益专项"油茶精深加工利用关键技术研究"(2007-4-36);浙江省重点项目"油茶加工利用关键技术研究与产业化示范"(2007C12G3030003);浙江省科技攻关面上项目"油茶炼油副产物精加工关键技术研究与示范"(2009C32056)

摘　　要：对油茶籽油毛油、碱炼油、脱色油、脱臭油、精炼油的理化性质及活性物质的含量进行了分析测定,研究了碱炼、脱色、脱臭3道工序对油茶籽油的酸值、过氧化值以及甾醇、α-生育酚、角鲨烯、总酚、β-胡萝卜素含量的影响。结果表明,脱色油酸值最高,为0.67 mgKOH/g;精炼油酸值最低,为0.32 mgKOH/g。毛油过氧化值最高,为4.83 mmol/kg;脱臭油过氧化值最低,为1.36 mmol/kg。甾醇、α-生育酚、角鲨烯含量以毛油中最高,分别为908.75、21.60、102.31 mg/kg,且角鲨烯含量显著高于其他油茶籽油(P<0.05)。总酚、β-胡萝卜素含量以精炼油中最低,分别为21.750、0.130 mg/kg。脱色和脱臭两道工序是影响油茶籽油品质的重要环节。The changes of bioactive constituents and physical-chemical properties of the oil-tea camellia seed oil in different processing procedures,such as crude oil,alkalized oil,bleached oil,deodorized oil and refined oil were investigated.Acid value,peroxide value and the content of total sterol,α-tocopherol,squalene,polyphenols and β-carotene in variety of samples were determined by means of wet chemical and instrument methods.The results showed that the bleached oil had the highest acid value,which was 0.67 mgKOH/g.The refined oil had the lowest acid value,which was 0.32 mgKOH/g.The crude oil had the highest peroxide value,which was 4.83 mmol/kg.The deodorized oil had the lowest peroxide value,which was 1.36 mmol/kg.Compared with others,crude oil contained more total sterol（908.75 mg/kg）,α-tocopherol（21.60 mg/kg）,squalene（102.31 mg/kg）,what＇s more,the content of squalene in crude oil was significantly higher than that in other oil（P0.05）.For the total content of polyphenols and β-carotene,the refined oil had the lowest,which was 21.75 and 0.006mg/kg,respectively.The way of bleaching and deodorizing is important processing technology to the oil-tea camellia seed oil qualities.

关 键 词：油茶籽油 活性物质 加工工序 

分 类 号：TS224[轻工技术与工程—粮食、油脂及植物蛋白工程]