Assessment of genetically modified soybean crops and different cultivars by Fourier transform infrared spectroscopy and chemometric analysis

Glaucia Braz Alcantara, Andersson Barison, Maiara da Silva Santos, Luis P. S. Santos, José F. F. de Toledo, Antonio Gilberto Ferreira


This paper describes the potentiality of Fourier transform infrared (FT-IR) spectroscopy associated to chemometric analysis for assessment of conventional and genetically modified soybean crops. Recently, genetically modified organisms have been queried about their influence on the environment and their safety as food/feed. In this regard, chemical investigations are ever more required. Thus three different soybean cultivars distributed in transgenic Roundup ReadyTM soybean and theirs conventional counterparts were directly investigated by FT-IR spectroscopy and chemometric analysis. The application of PCA and KNN methods permitted the discrimination and classification of the genetically modified samples from conventional ones when they were separately analysed. The analyses showed the chemical variation according to genetic modification. Furthermore, this methodology was efficient for cultivar grouping and highlights cultivar dependence for discrimination between transgenic and non-transgenic samples. According to this study, FT-IR and chemometrics could be used as a quick, easy and low cost tool to assess the chemical composition variation in genetically modified organisms.


soybean; FT-IR; chemometrics; transgenic; genetically modified organisms

Full Text: PDF (English)


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

Institute of Chemistry - Universidade Federal de Mato Grosso do Sul. Copyright © 2021
Phone: +55 67 3345 3676. Av. Senador Filinto Müller, 1555 – Vila Ipiranga, CEP: 79074-460 – Campo Grande – MS, Brazil