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| Electrical conductivity measurement in identification of authentic oil-tea camellia seed oil |
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| KeyWord:oil-tea camellia seed oil electrical conductivity identification adulteration |
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| Abstract: |
| 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 camellia 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 content 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 different 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 . |
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