Abstract
Considering the increased consumption of organic foods, it is important to propose analytical methods to evaluate these ones. The basic difference between organic and non-organic food products is how they are produced and processed, and methods to discriminate among them are a current trend in food science and analytical chemistry. In this way, this research aimed to propose an analytical method based on a handheld ultraviolet (UV) spectroscopy dispositive coupled with a multivariate control chart based on principal component analysis (MCC-PCA) for differentiation of organic rosemary (Rosmarinus officinalis L.), a plant employed in popular medicine and as a food condiment. Using a simple extraction in a magnetic stirrer showed that UV coupled with MCC-PCA could promote a rapid analysis in the differentiation of organic samples. The proposal was validated, and the robustness was evaluated with a slight modification in the extraction step and by correctly predicting samples obtained in another country.
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Acknowledgements
P. Valderrama acknowledges CNPq (process 306606/2020-8).
Funding
This was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)—Finance Code 001 and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq—process 306606/2020–8).
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Conceptualization, V.M.A.T. de Oliveira, A.R.S. Bruni, A.S.T. Fernandez, and P. Valderrama; Methodology, V.M.A.T. de Oliveira, A.R.S. Bruni, and P. Valderrama; Software, V.M.A.T. de Oliveira, P. Valderrama; Validation V.M.A.T. de Oliveira, and P. Valderrama; Formal Analysis, V.M.A.T. de Oliveira, A.R.S. Bruni, and A.S.T. Fernandez; Investigation, V.M.A.T. de Oliveira, A.R.S. Bruni, A.S.T. Fernandez, and P. Valderrama; Resources, V.M.A.T. de Oliveira, and P. Valderrama; Data Curation, V.M.A.T. de Oliveira, A.R.S. Bruni, A.S.T. Fernandez, and P. Valderrama; Writing—original draft preparation, V.M.A.T. de Oliveira; Writing—review and editing, P. Valderrama; Visualization, V.M.A.T. de Oliveira, and P. Valderrama; Supervision, P. Valderrama; Project Administration, P. Valderrama; Funding Acquisition, P. Valderrama. All authors reviewed the manuscript.
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de Oliveira, V.M.A.T., Bruni, A.R.S., Fernandez, A.S.T. et al. Handheld UV Spectroscopy and MCC-PCA in the Evaluation of Organic Rosmarinus officinalis L. Food Anal. Methods 17, 7–13 (2024). https://doi.org/10.1007/s12161-023-02541-1
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DOI: https://doi.org/10.1007/s12161-023-02541-1