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      Processamento mínimo de tangor ‘Murcott’: tipos de corte, sanificação e eliminação do excesso de líquidos Translated title: Minimal processing of ‘Murcott’ tangor: types of cut, sanification and elimination of excess fluids

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          Abstract

          Resumo O tangor ‘Murcott’ é uma das variedades de tangerina mais produzidas no Estado de São Paulo. Apresenta excelente qualidade sensorial e sabor intenso e mais doce do que a tangerina ‘Ponkan’, sendo, dessa forma, um produto com potencial para o mercado de frutos minimamente processados. Diante disso, o objetivo deste trabalho foi determinar os efeitos dos tipos de corte e dos métodos de sanificação e de eliminação do excesso de líquidos na qualidade de tangor ‘Murcott’ minimamente processado. Num primeiro experimento, os frutos foram cortados em metades, tiras e cubos. No segundo experimento, foram estudados os efeitos dos métodos de sanificação com cloro e de eliminação do excesso de líquidos. Os cortes em metades e em tiras apresentaram maiores teores de ácido ascórbico no final do armazenamento. O teor de sólidos solúveis não diferiu entre os cortes. O corte em tiras apresentou teores baixos de acidez titulável e elevada relação sólidos solúveis/acidez titulável. A eliminação do excesso de líquidos não afetou a aparência do produto minimamente processado e a sanificação com cloro não afetou o sabor. Todos os tratamentos apresentaram baixos níveis de contaminação microbiana nas condições do presente estudo. O melhor tipo de corte foi o de tiras. A sanificação após o corte, bem como a eliminação do excesso de líquidos, mostraram-se dispensáveis no processamento mínimo de tangor ‘Murcott’ em tiras, nas condições do presente estudo.

          Translated abstract

          Abstract ‘Murcott’ is one of the tangerine varieties most produced in São Paulo, Brazil. It presents excellent sensory quality, intense flavour and is sweeter than the ‘Ponkan’ tangerine, and is therefore a product with potential for the minimally processed fruits market. The aim of this study was to determine the effects of types of cutting, sanitation methods and the elimination of excess fluids on the quality of minimally processed ‘Murcott’ tangor. In the first experiment, the fruits were cut into halves, strips and cubes. In the second experiment the effects of chlorine sanitization and the elimination of excess fluids were examined. The halves and strips showed higher ascorbic acid contents at the end of the storage period than did the cubes, but the soluble solids contents did not differ significantly between the cuts. The strips showed low titratable acidity levels and high soluble solids/titratable acidity ratios. The elimination of excess fluid did not affect the appearance of the minimally processed products, and sanitization with chlorine did not affect the taste. All the treatments showed low levels of microbial contamination under the conditions of the present study. The strips were the best type of cut. Under the conditions of this study, sanitation after cutting and the elimination of excess fluid were proven to be expendable in the minimum processing of ‘Murcott’ as strips.

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          Recent approaches using chemical treatments to preserve quality of fresh-cut fruit: A review

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            Metabolic characterization of tomato fruit during preharvest development, ripening, and postharvest shelf-life

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                Author and article information

                Journal
                bjft
                Brazilian Journal of Food Technology
                Braz. J. Food Technol.
                Instituto de Tecnologia de Alimentos - ITAL (Campinas, SP, Brazil )
                1981-6723
                2017
                : 20
                : e2016041
                Affiliations
                [01] Piracicaba orgnameUniversidade de São Paulo orgdiv1Escola Superior de Agricultura “Luiz de Queiroz” Brazil
                [02] Bauru São Paulo orgnameAgência Paulista de Tecnologia dos Agronegócios Brazil
                Article
                S1981-67232017000100411 S1981-6723(17)02000000411
                10.1590/1981-6723.4116
                6290085c-2894-410d-95fa-212ff2d4e9fe

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 06 February 2017
                : 06 April 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 0
                Product

                SciELO Brazil

                Categories
                Artigos Científicos

                Citrus reticulata Blanco × Citrus sinensis (L.) Osbeck,Postharvest,Centrifugation,Microbiological quality,Pós-colheita,Centrifugação,Qualidade microbiológica

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