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vol.39 número especialDISCRIMINAÇÃO ISOTÓPICA DE CARBONO EM FOLHAS DE MANGUEIRAS SUBMETIDAS A ESTRESSE SALINOAVALIAÇÃO DE MÉTODOS EMERGENTES SOBRE O CONTEÚDO DE POLIFENÓIS, CAPACIDADE ANTIOXIDANTE E PRESENÇA QUALITATIVA DE ACETIOGENINAS EM PULPA DE SOURSOP (Annona muricata L.) índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Fruticultura

versão impressa ISSN 0100-2945versão On-line ISSN 1806-9967

Resumo

MONTEIRO, MARIANA FERRAZ; AGUILA, JUAN SAAVEDRA DEL; PESSOA, CLEUCIONE DE OLIVEIRA  e  KLUGE, RICARDO ALFREDO. VACUUM PACKAGING IS EFFICIENT TO REMOVE ASTRINGENCY AND TO MAINTAIN THE FIRMNESS OF ‘GIOMBO’ PERSIMMON. Rev. Bras. Frutic. [online]. 2017, vol.39, n.spe, e-129.  Epub 26-Jan-2017. ISSN 0100-2945.  http://dx.doi.org/10.1590/0100-29452017129.

The aim of this study was to develop a simple technique to remove astringency and maintain the pulp firmness of ‘Giombo’ persimmons. Fruit were packaged in three different plastic packages: low-density polyethylene (LDPE), polypropylene (PP) and polyethylene-polyamide (PE-PA). Packages with dimensions of 30 cm x 50 cm and 20 µm thickness were sealed under vacuum. Fruit uncovered in plastic film were used as control samples. After packaging, fruits were stored at ambient conditions (22°C and 70% RH) for five days. After this period, fruits were removed from the package and kept at the same previous conditions for six days and evaluated every two days. All plastic packages showed effectiveness in removing astringency, but only PE-PA maintained pulp firmness during the six days after package removal. LDPE and PP films also caused reduction of astringency while pulp firmness was properly maintained until the fourth day. These two films did not succeed in obtaining vacuum, which was only achieved by PE-PA. PE-PA reduces astringency faster and maintains fruit firmness for a longer time at room temperature.

Palavras-chave : Diospyrus kaki L.; modified atmosphere; tannin.

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