Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas

Brazilian papaya production and exports have increased in recent years, and as a phytosanitary requirement, emerging technologies have been introduced into the agricultural chain. Electron beam (E-beam) irradiation has phytosanitary potential for the treatment of fruits, as it is safe and effective...

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Main Authors: Patrícia Souza de Oliveira, Caroline Corrêa de Souza Coelho, Rodrigo da Silveira Campos, Otniel Freitas-Silva, Murillo Freire Júnior
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2025-09-01
Series:Food Physics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2950069925000088
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author Patrícia Souza de Oliveira
Caroline Corrêa de Souza Coelho
Rodrigo da Silveira Campos
Otniel Freitas-Silva
Murillo Freire Júnior
author_facet Patrícia Souza de Oliveira
Caroline Corrêa de Souza Coelho
Rodrigo da Silveira Campos
Otniel Freitas-Silva
Murillo Freire Júnior
author_sort Patrícia Souza de Oliveira
collection DOAJ
description Brazilian papaya production and exports have increased in recent years, and as a phytosanitary requirement, emerging technologies have been introduced into the agricultural chain. Electron beam (E-beam) irradiation has phytosanitary potential for the treatment of fruits, as it is safe and effective in controlling agricultural pests, extending the shelf life of the fruits, and preserving their quality. E-beam irradiation doses of 1, 3, and 5 kGy were applied on 'Golden' papaya fruit, with non-irradiated fruits (0 kGy) used as a control were applied on 'Golden' papaya fruit inoculated with fungi Colletotrichum gloeosporioides and Phoma caricae-papayae to verify if this technology could reduce postharvest diseases from the papaya rot complex. Also, this study evaluated the effects of the same E-beam doses on the postharvest quality of papayas, by analyzing physicochemical characteristics such as titratable acidity (TA), total soluble solids (TSS), Total Phenolic Content (TPC), firmness, and weight loss, as well as enzymatic activity of pectin methylesterase (PME) and polygalacturonase (PG) in the fruit. E-beam irradiation did not affect these variables. A difference was observed among the tested doses on the TA, TSS, TPC, and weight loss with the temperature increase during storage. In the other analysis, PME and PG activity and firmness were not influenced by the irradiation doses. Fruit at the 1 kGy, in general, had similar results as the control ones, this dose also was effective in reducing the growth of C. gloeosporioides and P. caricae-papayae and maintaining the quality of fruit since the doses of 3 and 5 kGy caused injuries to them.
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spelling doaj-art-9dec10cc86c743d59bb401224d2c33e62025-08-20T03:13:46ZengKeAi Communications Co., Ltd.Food Physics2950-06992025-09-01210005410.1016/j.foodp.2025.100054Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayasPatrícia Souza de Oliveira0Caroline Corrêa de Souza Coelho1Rodrigo da Silveira Campos2Otniel Freitas-Silva3Murillo Freire Júnior4Graduate Program in Food Science and Technology, Federal Rural University of Rio de Janeiro, UFRRJ, BR 465, Km 7, Seropédica, RJ 23890-000, BrazilFood and Nutrition Graduate Program, Federal University of State of Rio de Janeiro, UNIRIO, Av. Pasteur, 296, Rio de Janeiro 22290-240, BrazilEmbrapa Agroindústria de Alimentos, Av. das Américas, 29501, Rio de Janeiro, RJ 23020-470, BrazilEmbrapa Agroindústria de Alimentos, Av. das Américas, 29501, Rio de Janeiro, RJ 23020-470, Brazil; Corresponding author.Embrapa Agroindústria de Alimentos, Av. das Américas, 29501, Rio de Janeiro, RJ 23020-470, BrazilBrazilian papaya production and exports have increased in recent years, and as a phytosanitary requirement, emerging technologies have been introduced into the agricultural chain. Electron beam (E-beam) irradiation has phytosanitary potential for the treatment of fruits, as it is safe and effective in controlling agricultural pests, extending the shelf life of the fruits, and preserving their quality. E-beam irradiation doses of 1, 3, and 5 kGy were applied on 'Golden' papaya fruit, with non-irradiated fruits (0 kGy) used as a control were applied on 'Golden' papaya fruit inoculated with fungi Colletotrichum gloeosporioides and Phoma caricae-papayae to verify if this technology could reduce postharvest diseases from the papaya rot complex. Also, this study evaluated the effects of the same E-beam doses on the postharvest quality of papayas, by analyzing physicochemical characteristics such as titratable acidity (TA), total soluble solids (TSS), Total Phenolic Content (TPC), firmness, and weight loss, as well as enzymatic activity of pectin methylesterase (PME) and polygalacturonase (PG) in the fruit. E-beam irradiation did not affect these variables. A difference was observed among the tested doses on the TA, TSS, TPC, and weight loss with the temperature increase during storage. In the other analysis, PME and PG activity and firmness were not influenced by the irradiation doses. Fruit at the 1 kGy, in general, had similar results as the control ones, this dose also was effective in reducing the growth of C. gloeosporioides and P. caricae-papayae and maintaining the quality of fruit since the doses of 3 and 5 kGy caused injuries to them.http://www.sciencedirect.com/science/article/pii/S2950069925000088EnzymesFruit physiologyFungiPostharvest pathologyRadiation
spellingShingle Patrícia Souza de Oliveira
Caroline Corrêa de Souza Coelho
Rodrigo da Silveira Campos
Otniel Freitas-Silva
Murillo Freire Júnior
Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
Food Physics
Enzymes
Fruit physiology
Fungi
Postharvest pathology
Radiation
title Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
title_full Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
title_fullStr Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
title_full_unstemmed Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
title_short Effects of electron-beam (E-beam) irradiation on the postharvest quality of ‘golden’ papayas
title_sort effects of electron beam e beam irradiation on the postharvest quality of golden papayas
topic Enzymes
Fruit physiology
Fungi
Postharvest pathology
Radiation
url http://www.sciencedirect.com/science/article/pii/S2950069925000088
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