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Postharvest conservation of Formosa 'Tainung 1' papaya under refrigeration, modified atmosphere, and chitosan
Reis, Héber Ferreira dos; Scalon, Silvana de Paula Quintão; Tanaka, Katiuça Sueko; Casemiro, Jaqueline Clara Longo; Oliveira, Vinícius Soares de.
  • Reis, Héber Ferreira dos; Universidade Federal da Grande Dourados. Faculdade de Ciências Agrárias. Área de Agronomia. Dourados. BR
  • Scalon, Silvana de Paula Quintão; Universidade Federal da Grande Dourados. Faculdade de Ciências Agrárias. Área de Agronomia. Dourados. BR
  • Tanaka, Katiuça Sueko; Universidade Federal da Grande Dourados. Faculdade de Ciências Agrárias. Área de Agronomia. Dourados. BR
  • Casemiro, Jaqueline Clara Longo; Universidade Federal da Grande Dourados. Faculdade de Ciências Agrárias. Área de Agronomia. Dourados. BR
  • Oliveira, Vinícius Soares de; Centro Universitário da Grande Dourados. Dourados. BR
Arq. Inst. Biol. (Online) ; 89: e00372020, 2022. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1416900
ABSTRACT
The objective of this work is to evaluate the use of modified atmosphere and chitosan as an alternative to chemical treatment in postharvest conservation of 'Tainung 1' papaya under refrigeration. The experiment comprised of completely randomized blocks with four replications, one fruit per replication, with a 2 × 4 × 4 factorial design as follows two types of packaging (with or without polyvinyl chloride [PVC] stretchable film, thickness of 17 µm), four treatments (control, 2% chitosan, 4% chitosan, and prochloraz fungicide with 33.75 g a.i.·100 L­1), and four storage periods (0, 7, 14, and 21 days) at 10 °C and relative humidity (RH) of 90 ± 5%. The variables evaluated were mass loss (ML), external appearance, titratable acidity (TA), soluble solids (SS), vitamin C, reducing sugars (RS), and total sugars (TS). The storage of 'Formosa' papaya under refrigeration at 10 °C and RH of 90 ± 5% associated with PVC provided a low percentage of ML and longer conservation time of apparent quality (up to 7 days) in relation to fruits with no storage in PVC. The external appearance of fruits was preserved for up to 14 days by the PVC + 4% chitosan treatment and for up to 21 days by the PVC + prochloraz fungicide treatment. The treatment PVC + 4% chitosan associated with refrigeration is efficient in maintaining fruit quality. It is, for up to 14 days, a viable alternative to the use of prochloraz fungicide for postharvest conservation of 'Formosa' papaya.

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Full text: Available Index: LILACS (Americas) Main subject: Polyvinyl Chloride / Carica / Chitosan / Cooled Foods / Food Preservation Type of study: Controlled clinical trial Language: English Journal: Arq. Inst. Biol. (Online) Year: 2022 Type: Article Institution/Affiliation country: Centro Universitário da Grande Dourados/BR / Universidade Federal da Grande Dourados/BR

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Full text: Available Index: LILACS (Americas) Main subject: Polyvinyl Chloride / Carica / Chitosan / Cooled Foods / Food Preservation Type of study: Controlled clinical trial Language: English Journal: Arq. Inst. Biol. (Online) Year: 2022 Type: Article Institution/Affiliation country: Centro Universitário da Grande Dourados/BR / Universidade Federal da Grande Dourados/BR