The use of sodium alginate-based coating and cellulose acetate in papaya post-harvest preservation

Denise Andrade Silva, Juliana Krieger Oliveira, Clovis Marcelo Santos, Carla Crislan Souza Bery, Alessandra Almeida Castro, João Antônio Belarmino Santos

Resumo


This study aimed to evaluate the ripening of papaya fruit (Carica papaya L.) at room temperature (±25°C) and10°C with 80% relative humidity, coated with edible film based on sodium alginate (1%) and cellulose acetate film (3%) by dipping the fruit in the suspensions for 1 min. On the application of the treatment and every three days during 12 days of storage, fruit were evaluated for weight loss, firmness, total carotenoid content, lycopene content and vitamin C content of the pulp. The cellulose acetate film extended the shelf-life of papayas, without affecting their quality. This treatment delayed fruit ripening, whose changes in all the parameters analyzed were significantly slower than fruit treated with sodium alginate-based coating. The coating with cellulose acetate at 3% was more effective in the preservation of papaya stored for 12 days under both temperatures.


Palavras-chave


coating; ripening; storage

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DOI: http://dx.doi.org/10.4025/actascitechnol.v36i3.17645





ISSN 1806-2563 (impresso) e ISSN 1807-8664 (on-line) e-mail: actatech@uem.br

  

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