orbitol immersion controls chilling injury in CA stored `Palmer' mangoe

Autor(es)

Sanches, Alex Guimaraes ^[1] ; da Silva, Maryelle Barros ^[1] ; Casares Wong, Maria Carolina ^[1] ; Gomes de Oliveira, Antonio Rafael ^[2] ; Dantas Pedrosa, Vanessa Maria ^[1] ; Silva Fernandes, Thiago Feliph ^[1] ; Gratao, Priscila Lupino ^[3] ; de Almeida Teixeira, Gustavo Henrique ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Fac Ciencias Agr & Veterinarias FCAV, Dept Ciencias Prod Agr, Campus Jaboticabal, BR-14870900 Jaboticabal, SP - Brazil

^[2] Univ Fed Para, Inst Estudos Costeiros, Lab Plancton & Cult Microalgas, Campus Braganca, Alameda Leandro Ribeiro S-N, BR-68600000 Braganca, Para - Brazil

^[3] Univ Estadual Paulista UNESP, Fac Ciencias Agr & Vet FCAV, Dept Biol Aplicada Agr, Campus Jaboticabal, BR-14870900 Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Postharvest Biology and Technology; v. 185, MAR 2022.
• Citações Web of Science: 0

Resumo

Chilling injury (CI) in mangoes can be reduced using a controlled atmosphere (CA) and sorbitol immersion, although studies combining these treatments have yet to be recorded. Therefore, the objective of this study was to use multivariate analysis to evaluate the effectiveness of these methods in controlling CI. `Palmer' mangoes were immersed in 0.1 and 2.5 % (w/v) sorbitol solutions and stored under CA (5 % O-2 + 5 % CO2) at 8 degrees C for 30 d. The evaluations were performed under CA storage conditions (0, 10, 20, and 30 d), after which the fruit were transferred to an ambient temperature environment (similar to 23 degrees C) for a further 7 days. CI was minimized in mangoes treated with 2.5 % sorbitol and stored in a CA. In addition, the physicochemical variables (soluble solids content, titratable acidity, SSC/TA ratio, and pH), firmness, and mesocarp color (L{*}, h degrees, and C{*}) were not affected. CI development was associated with increased fresh weight loss and epicarp color (L{*}, h degrees, and C{*}). Hydrogen peroxide (H2O2) levels were related to CI symptom development, which intensified with the transfer to an ambient temperature, mainly due to increased electrolyte leakage (EL), lipid peroxidation (LP), and polyphenol oxidase (PPO) activity. CI inhibition in mangoes treated with 2.5 % sorbitol under a CA was related to the nonenzymatic (vitamin C and total polyphenols) and enzymatic (superoxide dismutase - SOD, catalase - CAT, and ascorbate peroxidase - APX) defense metabolisms, allowing for the quality of the fruit to be maintained for up to 30 d at 8 degrees C. (AU)

• Processo FAPESP: 19/15116-0 - Uso de crioconservantes durante o armazenamento sob atmosfera controlada de mangas Palmer a baixas temperaturas
• Beneficiário: Gustavo Henrique de Almeida Teixeira
• Modalidade de apoio: Auxílio à Pesquisa - Regular