Terahertz spectroscopy detection of genetically modified sugar beets containing the Xa21 gene based on chemometrics methods

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Jianjun Liu Terahertz spectroscopy detection of genetically modified sugar beets containing the Xa21 gene based on chemometrics methods (Определение содержания гена Xа21 в генетически модифицированной сахарной свёкле методом терагерцовой спектроскопии в сочетании с хемометрическими методами) [на англ. яз.] // Оптический журнал. 2016. Т. 83. № 10. С. 60–65.

Jianjun Liu Terahertz spectroscopy detection of genetically modified sugar beets containing the Xa21 gene based on chemometrics methods (Определение содержания гена Xа21 в генетически модифицированной сахарной свёкле методом терагерцовой спектроскопии в сочетании с хемометрическими методами) [in English] // Opticheskii Zhurnal. 2016. V. 83. № 10. P. 60–65.

For citation (Journal of Optical Technology):

Jianjun Liu, "Terahertz spectroscopy detection of genetically modified sugar beets containing the Xa21 gene based on chemometrics methods," Journal of Optical Technology. 83(10), 627-631 (2016). https://doi.org/10.1364/JOT.83.000627

Abstract:

Because traditional detection of genetically modified organisms (GMOs) has the disadvantages of being costly, time consuming, and awkward to perform, a novel method for the detection of GMOs based on terahertz spectroscopy combined with chemometrics methods is proposed. In this work, terahertz spectrum data of a genetically modified sugar beet and its parents are pretreated by using principal component analysis and then using the weighted discriminant analysis model, which is an improved discriminant analysis that applys a weighted algorithm to the detection of a genetically modified sugar beet and its parents. It is found from the experimental results that the samples are expressed by the zonation of saline minerals. By analyzing this phenomenon, it is easy to identify these genetically modified sugar beets. By combining terahertz spectroscopy with chemometrics methods, this paper provides a precise, fast, convenient, and nondestructive method for the detection of GMOs.

Keywords:

THz, genetically modified, spectroscopy, detection, WDA

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