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| Detection of adulterated oil-tea camellia seed oil by UV spectrophotometry |
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| KeyWord:oil-tea camellia seed oil UV spectrophotometry adulteration type adulteration amount |
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| Abstract: |
| Based on the differences in the UV absorption spectrum between 200 nm and 360 nm of oil-tea camellia seed oil and other vegetable oils，qualitative and quantitative detections of adulterated oil-tea camellia seed oil were carried out by discriminant analysis and regression analysis. The results showed that the adulteration types of adulterated oil-tea camellia seed oil could be identified using discriminant function established by discriminant analysis，and the accuracy rate was 100%；the adulteration amount of adulterated oil-tea camellia seed oil could be detected quantitatively by regression analysis；the optimal detection ranges of adulteration amounts of rapeseed oil，soybean oil and rice bran oil adulterated in oil-tea camellia seed oil were 12%-100%；and the optimal detection ranges of adulteration amounts of corn oil and palm oil adulterated in oil-tea camellia seed oil were 15%-100%. |
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