Color approach to the analysis of white crystal cane sugar for the detection of solid impurities

Autor(es)

Barros, Nathalia Zanetti ^[1] ; Speranca, Marco Aurelio ^[1] ; Verbi Pereira, Fabiola Manhas ^{[2, 1]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Bioenergy Res Inst IPBEN, Inst Chem, Grp Alternat Analyt Approaches GAAA, BR-14800060 Araraquara, SP - Brazil

^[2] Natl Inst Alternat Technol Detect Toxicol Assessm, Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Science of Food and Agriculture; DEC 2021.
• Citações Web of Science: 0

Resumo

BACKGROUND Sugar is consumed worldwide and so the quality control of sugar cane is necessary. Solid impurities are an inherent part of industrial sugar processing. Dark particles and adulteration with sand must be controlled. Sixty-four samples of white crystal cane sugar analysis in the presence of both kinds of impurities (dark particles and sand) were assessed using an affordable digital image system and a multivariate calibration strategy. RESULTS The quality parameters for the multivariate calibration models obtained to estimate sugar content were remarkable. Color descriptors from digital images allowed identification of different levels of sugar content for the following three ranges: 0-49.99 wt%, 50.03-78.99 wt%, and 82.99-100 wt%. The multivariate model using red (R), green (G), Blue (B), and luminosity (L) color descriptors showed low standard errors of cross-validation (SECV) and validation (SEV) of 7.63 and 6.01 wt%, respectively. CONCLUSIONS The method is affordable and reliable, and might aid quick screening in situations where access to a laboratory or instrumentation is restricted. (c) 2021 Society of Chemical Industry. (AU)

• Processo FAPESP: 14/50945-4 - INCT 2014: Instituto Nacional de Tecnologias Alternativas para Detecção, Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos
• Beneficiário: Maria Valnice Boldrin
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 19/01102-8 - EMU concedido no processo 2018/18212-8: espectrômetro de fluorescência de Raios-X
• Beneficiário: Fabiola Manhas Verbi Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 18/18212-8 - Desenvolvimento de modelos quimiométricos para determinação de impurezas sólidas na matéria prima cana-de-açúcar utilizando o potencial da fluorescência de raios-X por energia dispersiva
• Beneficiário: Fabiola Manhas Verbi Pereira
• Modalidade de apoio: Auxílio à Pesquisa - Regular