Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/18292
Tipo: Artigo
Título: Chitosan delays ripening and ROS production in guava (Psidium guajava L.) fruit
Autor(es): Silva, Willian Batista
Silva, Gláucia Michelle Cosme
Santana, Diederson Bortolini
Salvador, Acácio Rodrigues
Medeiros, David Barbosa
Belghith, Ikram
Silva, Natália Martins da
Cordeiro, Maria Helena Menezes
Misobutsi, Gisele Polete
Abstract: Guava is a typically tropical fruit highly perishable with a short shelf-life due to intense metabolic activity after harvested. In attempt to minimize the problems related to the postharvest, we evaluated the physiochemical characteristics and antioxidant system in guava fruits under chitosan coating at concentrations of 1%, 2%, and 3% stored at 25 °C during 96 h. The chitosan suppressed the respiratory rate, fresh weight loss, firmness and skin color with delay in the degradation of chlorophyll. In the treatment with 2% and 3% of chitosan in the solid soluble content and ascorbic acid were reduced; retarded the loss of titratable acidity during 96 h after treatment. These treatment induced significant decreases in the phenylalanine ammonia-lyase activity and significantly increases of peroxidase Activity. Our results suggest that chitosan effectively prolongs the quality attributes in guava fruits after harvesting due to increases in the antioxidant processes, delaying the ripening during room temperature of storage.
Palavras-chave: Antioxidant
Chitosan
Guava
Quality
Ripening
Editor: Food Chemistry
Tipo de Acesso: Elsevier Ltd
URI: https://doi.org/10.1016/j.foodchem.2017.09.052
http://www.locus.ufv.br/handle/123456789/18292
Data do documento: 12-Set-2017
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
artigo.pdf
  Until 2100-12-31
Texto completo515,47 kBAdobe PDFVisualizar/Abrir    Solictar uma cópia


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.