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Susceptibility of Blood Orange Cultivars to Chilling Injury Based on Antioxidant System, Physiological and Biochemical Responses at Different Storage Temperatures
Habibi, F.; Ramezanian, A.; Guillén, F.; Martínez-Romero, D.; Serrano, M.; Valero, D. Susceptibility of Blood Orange Cultivars to Chilling Injury Based on Antioxidant System and Physiological and Biochemical Responses at Different Storage Temperatures. Foods 2020, 9, 1609, doi:10.3390/foods9111609.
Habibi, F.; Ramezanian, A.; Guillén, F.; Martínez-Romero, D.; Serrano, M.; Valero, D. Susceptibility of Blood Orange Cultivars to Chilling Injury Based on Antioxidant System and Physiological and Biochemical Responses at Different Storage Temperatures. Foods 2020, 9, 1609, doi:10.3390/foods9111609.
Habibi, F.; Ramezanian, A.; Guillén, F.; Martínez-Romero, D.; Serrano, M.; Valero, D. Susceptibility of Blood Orange Cultivars to Chilling Injury Based on Antioxidant System and Physiological and Biochemical Responses at Different Storage Temperatures. Foods 2020, 9, 1609, doi:10.3390/foods9111609.
Habibi, F.; Ramezanian, A.; Guillén, F.; Martínez-Romero, D.; Serrano, M.; Valero, D. Susceptibility of Blood Orange Cultivars to Chilling Injury Based on Antioxidant System and Physiological and Biochemical Responses at Different Storage Temperatures. Foods 2020, 9, 1609, doi:10.3390/foods9111609.
Abstract
Susceptibility of four blood orange cultivars (‘Moro’, ‘Tarocco’, ‘Sanguinello’ and ‘Sanguine’) to chilling injury (CI) was studied. Antioxidant enzymes, physiological and biochemical changes were measured monthly at 2 and 5 °C plus 2 days at 20 °C for shelf life. At 2 °C, CI symptoms were higher than at 5 °C, and ‘Moro’ and ‘Tarocco’ had significantly higher CI than ‘Sanguinello’ and ‘Sanguine’. ‘Moro’ and ‘Tarocco’ had the highest electrolyte leakage, malondialdehyde, H2O2 and polyphenol oxidase activity and lower phenylalanine ammonia-lyase compared with ‘Sanguinello’ and ‘Sanguine’. The scanning electron microscopy micrographs revealed that ‘Moro’ and ‘Taroco’ showed severe fractures in the flavedo due to CI. ‘Sanguinello’ and ‘Sanguine’ were more tolerant to CI due to an increase of catalase, ascorbate peroxidase and superoxide dismutase, which could prevent the loss of membrane integrity and alleviate CI symptoms. The order of susceptibility of cultivars to CI was ‘Moro’> ‘Tarocco’> ‘Sanguine’> ‘Sanguinello’.
Keywords
antioxidant enzymes; hydrogen peroxide; phenylalanine ammonia-lyase; proline; scanning electron microscopy
Subject
Chemistry and Materials Science, Food Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.