Aspectos físico-químicos e bioquímicos durante o armazenamento refrigerado do caqui em atmosfera modificada passiva

• Autor(a) principal: Mendonça, Veridiana Zocoler de [UNESP]
• Data de Publicação: 2015
• Outros Autores: Daiuto, Érica Regina [UNESP], Furlaneto, Karina Aparecida [UNESP], Ramos, Juliana Arruda [UNESP], Fujita, Erika [UNESP], Vieites, Rogério Lopes [UNESP], Tecchio, Marco Antonio [UNESP], Carvalho, Lidia Raquel de [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.14583/2318-7670.v03n01a03; http://hdl.handle.net/11449/140944
• topic: Diospyrus kaki; Postharvest; Climacteric fruit; Diospyrus kaki; Pós-colheita; Fruto climatérico

Biochemical and physiochemical quality of 'Rama Forte' persimmon stored under refrigeration and passive modified atmosphere condition were evaluated. Persimmon fruits were picked up with orange yellow epidermis coloration, select and conditioned in trays of expanded polystyrene (EPS), covered by polyethylene plastic film of low density (PEBD) and stored under refrigeration (7 ± 1ºC) with 85 ± 5% of relative humidity, being appraised every five days, for 20 days. The analyzes performed were: weight loss, respiratory activity, hidrogenionic potential (pH), titratable acidity (AT), soluble solids content (SS), activity of the polyphenoloxidase enzymes (PPO) and peroxidase (PPO), total phenolics, total antioxidant activity (TAA ) total, anthocyanin and carotene. Weight loss occurred in fruits but the percentage was low and did not change the fruits quality that show peak during the fifth day of storage. The pH, SS and AT values did not change significantly during the experimental period. Not significantly activity enzymes for PPO and POD were checked. The total phenolics compounds decreased after the fifth day of storage and the values of AA rise up during the storage, not being found correlation among these parameters. The anthocyanin and carotene content decreased during the storage. Therefore, the refrigerated storage associate with the passive modified atmosphere they were effective in the maintenance in part of the appraised quality parameters, because it might have influenced in the reduction of the anthocyanin and carotene values, compounds that have a nutritional interest.