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dc.contributor.authorSILVA, A. M. da
dc.contributor.authorTERAO, D.
dc.contributor.authorSILVA, I. S. O.
dc.contributor.authorMAIA, A. de H. N.
dc.contributor.authorMELO, W. L. de B.
dc.contributor.authorNECHET, K. de L.
dc.contributor.authorHALFELD-VIEIRA, B. de A.
dc.contributor.authorVILELA, E. S. D.
dc.contributor.authorFRACAROLLI, J. A.
dc.date.accessioned2026-04-30T13:52:38Z-
dc.date.available2026-04-30T13:52:38Z-
dc.date.created2026-04-30
dc.date.issued2026
dc.identifier.citationPostharvest Biology and Technology, v. 239, 114388, 2026.
dc.identifier.issn0925-5214
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1186510-
dc.descriptionAbstract: Postharvest losses remain a major challenge in fruit production systems, affecting both climacteric fruits, such as papaya, and non-climacteric fruits, such as orange. Ultraviolet-C (UV-C) radiation has emerged as a sustainable alternative to chemical fungicides; however, its effectiveness depends on the applied dose and radiation delivery mode. This study investigated the comparative effects of continuous and frequency-modulated UV-C radiation on postharvest disease control and fruit quality on papaya and orange. Two independent experiments were conducted. Experiment 1 evaluated the influence of modulation frequencies (0, 15, 30, and 45 Hz) on disease progression, while Experiment 2 combined the most effective frequencies with different exposure times to define optimal treatment conditions. In papaya, UV-C modulation at 30 Hz/20 s (0.44 kJ m⁻²) provided effective control of anthracnose (67% reduction in incidence), while minimizing photothermal damage, with no visible epidermal injuries. In orange, continuous UV-C radiation (0 Hz) applied for 30 s (1.99 kJ m⁻²), completely suppressed sour rot development (100%) without visible peel injury. Therefore, the selection of the UV-C radiation application mode is species-specific. Notably, modulation of UV-C irradiation has demonstrated enhanced efficiency in postharvest disease control while reducing epidermal burn. Additionally, the treatments stimulated defense responses, as evidenced by increased activities of phenylalanine ammonia-lyase, polyphenoloxidase, peroxidase, and catalase. Physicochemical analyses confirmed the maintenance of firmness, acidity, and color stability, indicating the preservation of postharvest quality in both fruits. Overall, modulated UV-C radiation represents a promising non-chemical postharvest technology, enabling efficient disease control while maintaining fruit quality.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectPhotothermal effect
dc.subjectAlternative control
dc.subjectResistance induction
dc.titleModulated UV-C radiation as an innovative strategy for postharvest disease control and quality preservation in papaya and orange fruits.
dc.typeArtigo de periódico
dc.subject.nalthesaurusPapayas
dc.subject.nalthesaurusOranges
dc.format.extent215 p.
riaa.ainfo.id1186510
riaa.ainfo.lastupdate2026-04-30
dc.identifier.doihttps://doi.org/10.1016/j.postharvbio.2026.114388
dc.contributor.institutionADRIANE MARIA DA SILVA, UNIVERSIDADE ESTADUAL DE CAMPINAS; DANIEL TERAO, CNPMA; ITALA SUZANA OLIVEIRA SILVA, UNIVERSIDADE FEDERAL DA BAHIA; ALINE DE HOLANDA NUNES MAIA, CNPMA; WASHINGTON LUIZ DE BARROS MELO, CNPDIA; KATIA DE LIMA NECHET, CNPMA; BERNARDO DE ALMEIDA HALFELD VIEIRA, CNPMA; ELKE SIMONI DIAS VILELA, CNPMA; JULIANA APARECIDA FRACAROLLI, UNIVERSIDADE ESTADUAL DE CAMPINAS.
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