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Tuesday, August 14, 2018
Abstract-Application of terahertz spectroscopy and chemometrics for discrimination of transgenic camellia oil
Jianjun Liu, Lanlan Fan, Yuanming Liu, Lili Mao, Jianquan Kan,
https://www.sciencedirect.com/science/article/pii/S1386142518307753
Discrimination of transgenic edible oil has become the focus of attention in the field of food safety. In this paper, we propose a method for discrimination of transgenic edible oils by using terahertz spectroscopy combine with weighted linear discriminant analysis (WLDA). To evaluate the lustiness of the model, we employ successive projection arithmetic (SPA) and partial least squares (PLS) to verify the discrimination performance through variable selection. The results demonstrate that the SPA-WLDA model has higher classification accuracy than PLS-WLDA. In conclusion, terahertz spectroscopy is coupled with chemometrics is an effective method for discriminating various types of transgenic edible oils.
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