中国油脂
中國油脂
중국유지
CHINA OILS AND FATS
2014年
4期
67-70
,共4页
崔之益%易立飒%李文锋%奚如春
崔之益%易立颯%李文鋒%奚如春
최지익%역립삽%리문봉%해여춘
油茶籽油%电导率%鉴别%掺假
油茶籽油%電導率%鑒彆%摻假
유다자유%전도솔%감별%참가
oil-tea camellia seed oil%electri-cal conductivity%identification%adulteration
为建立一种快速鉴别油茶籽油掺假的方法，采用电导率仪，对油茶籽油、花生油和大豆油，以及油茶籽油中掺入不同比例的花生油和大豆油的模拟掺假油样品进行了电导率测定。结果表明：不同类型油的电导率存在显著差异；在油茶籽油中掺入不同比例花生油和大豆油后，其电导率发生变化，其中的油茶籽油含量与其电导率之间具有良好的拟合关系。在油茶籽油中掺入不同比例花生油时，油茶籽油含量与其电导率的拟合方程为y=0.0407x2-10.434x+140.52(R2=0.9956)；在油茶籽油中掺入不同比例大豆油时，油茶籽油含量与其电导率的拟合方程为 y =19.379x2-84.118x+94.821(R2=0.8817)；在油茶籽油中同时掺入不同比例花生油和大豆油时，电导率变化与各油所占比例具有显著相关性。因此，电导率法可作为一种快速鉴别油茶籽油掺假的方法。
為建立一種快速鑒彆油茶籽油摻假的方法，採用電導率儀，對油茶籽油、花生油和大豆油，以及油茶籽油中摻入不同比例的花生油和大豆油的模擬摻假油樣品進行瞭電導率測定。結果錶明：不同類型油的電導率存在顯著差異；在油茶籽油中摻入不同比例花生油和大豆油後，其電導率髮生變化，其中的油茶籽油含量與其電導率之間具有良好的擬閤關繫。在油茶籽油中摻入不同比例花生油時，油茶籽油含量與其電導率的擬閤方程為y=0.0407x2-10.434x+140.52(R2=0.9956)；在油茶籽油中摻入不同比例大豆油時，油茶籽油含量與其電導率的擬閤方程為 y =19.379x2-84.118x+94.821(R2=0.8817)；在油茶籽油中同時摻入不同比例花生油和大豆油時，電導率變化與各油所佔比例具有顯著相關性。因此，電導率法可作為一種快速鑒彆油茶籽油摻假的方法。
위건립일충쾌속감별유다자유참가적방법，채용전도솔의，대유다자유、화생유화대두유，이급유다자유중참입불동비례적화생유화대두유적모의참가유양품진행료전도솔측정。결과표명：불동류형유적전도솔존재현저차이；재유다자유중참입불동비례화생유화대두유후，기전도솔발생변화，기중적유다자유함량여기전도솔지간구유량호적의합관계。재유다자유중참입불동비례화생유시，유다자유함량여기전도솔적의합방정위y=0.0407x2-10.434x+140.52(R2=0.9956)；재유다자유중참입불동비례대두유시，유다자유함량여기전도솔적의합방정위 y =19.379x2-84.118x+94.821(R2=0.8817)；재유다자유중동시참입불동비례화생유화대두유시，전도솔변화여각유소점비례구유현저상관성。인차，전도솔법가작위일충쾌속감별유다자유참가적방법。
To provide a method for identifying the adulteration of oil-tea camellia seed oil,the electrical conductivities of oil-tea camellia seed oil,peanut oil and soybean oil,as well as adulterated oil samples simulated by adding a certain proportion of peanut oil and soybean oil to oil-tea camellia seed oil were determined by electrical conductivity method. The results indicated that there were significant differences in the electrical conductivities of different types of oils;the electrical conductivity of oil -tea camellia seed oil added by different proportions of peanut oil and soybean oil changed,and the fitting relationship between oil-tea camellia seed oil content in the adulterated oil and electrical conductivity was good. When oil-tea camellia seed oil mixed with different proportions of peanut oil,the fitting equation of oil-tea ca-mellia seed oil content and electrical conductivity was y=0. 040 7x2 -10. 434x+140. 52(R2 =0. 995 6);when mixed with different proportions of soybean oil,the fitting equation of oil-tea camellia seed oil con-tent and electrical conductivity was y=19. 379x2 -84. 118x+94. 821(R2 =0. 881 7);and there was a significant correlation between electrical conductivity and the proportion of each oil when mixed with dif-ferent proportions of peanut oil and soybean oil simultaneously. Therefore,electrical conductivity could be used as a method for rapid identification of authen-tic oil-tea camellia seed oil .
