Mineral and trace element analysis of non-conventional food plants using ICP OES and chemometric techniques

Author(s)

Rodrigues, Leticia da Silva ; Ferreira, Dennis Silva ; Pereira-Filho, Edenir Rodrigues ; Pereira, Fabiola Manhas Verbi

• Document type: Journal article
• Source: Food Chemistry; v. 472, p. 7-pg., 2025-01-14.

Abstract

Non-conventional food plants (or non-conventional edible plants) have the potential to serve as an excellent nutritional alternative while promoting the circular economy. Given the nutritional potential of non- conventional food plants, this study aimed to investigate and determine the composition of these plants using inductively coupled plasma optical emission spectroscopy (ICP OES) combined with chemometric techniques. In this context, the following non-conventional food plant species were evaluated: serralha ( Sonchus oleraceus), two species of ora-pro-nobis, Pereskia grandifolia and Pereskia aculeata, peixinho ( Nematanthus gregarius), alfavaca ( Ocimum basilicum), taioba ( Xanthosoma sagittifolium), capeba ( Pothomorphe umbellata), tranchagem ( Plantago major), and bardana ( Arctium lappa). Ten elements (Ca, K, Mg, P, S, Cu, Fe, Mn, Sr, and Zn) were determined with concentrations varying from 4.62 (Cu) mg kg-1 up to 0.15 (P) g 100 g -1 . Statistical tests (one-way ANOVA) were applied as long as principal component analysis (PCA) and no differences between non-conventional and conventional food plants were verified. (AU)

• FAPESP's process: 23/08085-7 - Fit-for-purpose LIBS method to determine macro and micronutrients in non-conventional plants (PANC)
• Grantee: Fabiola Manhas Verbi Pereira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/24223-5 - Calibration in Laser-Induced Breakdown Spectroscopy (LIBS): alternatives, challenges, proposals comparison and proposition of a universal procedure
• Grantee: Edenir Rodrigues Pereira Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/01102-8 - Multi-user equipament approved in grant 2018/18212-8: X-Ray Fluorescence spectrometer
• Grantee: Fabiola Manhas Verbi Pereira
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
• Grantee: Maria Valnice Boldrin
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 21/10882-7 - Non-conventional food plants (PANC): accessible, functional, and sustainable nutritional source
• Grantee: Fabiola Manhas Verbi Pereira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 22/02232-5 - No-invasive characterization of unconventional food plants (PANC) by using energy-dispersive X-ray fluorescence and chemometrics
• Grantee: Leticia da Silva Rodrigues
• Support Opportunities: Scholarships in Brazil - Scientific Initiation