Non-invasive detection of internal flesh breakdown in intact Palmer mangoes using time-domain nuclear magnetic resonance relaxometry

Autor(es)

Bizzani, Marilia ^[1] ; Menezes Flores, Douglas William ^[1] ; Moraes, Tiago Bueno ^[2] ; Colnago, Luiz Alberto ^[3] ; Ferreira, Marcos David ^[3] ; Fillet Spoto, Marta Helena ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Agroind Food & Nutr, LAN, Escola Super Agr Luiz de Queiroz, Ave Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Fed Minas Gerais, Inst Ciencias Exatas, Dept Quim, Av Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG - Brazil

^[3] Embrapa Instrumentacao, Rua 15 Novembro 1452, BR-13561206 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Microchemical Journal; v. 158, NOV 2020.
• Citações Web of Science: 0

Resumo

The advent of new compact, bench-top, inexpensive and more user-friendly low-field nuclear magnetic resonance spectrometers in the last decade opens new opportunities for new non-destructive and non-invasive analytical methods to study physical-chemical properties of the internal parts of fruits. Correlations of the internal chemical environment with NMR relaxometry signals is an important parameter for food quality control, however, differently from controlled processed food, internal fruits environment has not always a straight correlation with relaxometry signals. In this paper we demonstrate that Time Domain-NMR signals combined with chemometrics analysis are a powerful tool for studies and industrial control of the internal quality of Palmer mangoes, providing tools to evaluate the fruit ripeness and internal flesh breakdown, which are highly difficult to be detected in intact fruits by other analytical methods. Results shows that combining transverse relaxation time distribution with Principal Component Analysis it is possible to classify three groups: unripe mangoes, ripe mangoes, and ripe mangoes with physiological defects. (AU)

• Processo FAPESP: 13/23479-0 - Sistemas alternativos de medição de qualidade interna não invasiva para frutos
• Beneficiário: Marcos David Ferreira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 14/22126-9 - Desenvolvimento de instrumentação e métodos de RMN no domínio do tempo para análise química, em campo
• Beneficiário: Luiz Alberto Colnago
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/13656-8 - Desenvolvimento e aplicações da ressonância magnética nuclear em produtos e processos de interesse agropecuário
• Beneficiário: Luiz Alberto Colnago
• Modalidade de apoio: Auxílio à Pesquisa - Regular