Edible Coating Based on Carnauba Wax Nanoemulsion and Cymbopogon martinii Essential Oil on Papaya Postharvest Preservation

Author(s)

de Oliveira Filho, Josemar Goncalves ; Silva, Guilherme da Cruz ; Alencar Oldoni, Fernanda Campos ; Miranda, Marcela ; Florencio, Camila ; Duarte de Oliveira, Raissa Moret ; Gomes, Mariana de Paula ; Ferreira, Marcos David

• Document type: Journal article
• Source: COATINGS; v. 12, n. 11, p. 9-pg., 2022-11-01.

Abstract

Papaya is a fruit of great importance worldwide. However, significant losses during postharvest have been reported, which can be minimized by applying lipid nanoemulsions as edible coatings associated with natural antimicrobial compounds. These coatings provide a barrier to gases and water vapor, in addition to improving mechanical properties, thereby delaying natural senescence and minimizing deterioration by phytopathogens during storage. The aim of this study was to investigate the preservation potential of papaya fruits treated with an edible coating based on an association between carnauba wax nanoemulsion (CWN) and Cymbopogon martinii essential oil (CEO). Coatings formulated with CWN and/or CEO were applied to papaya fruits, and resulted in late ripening during the 12-day storage period, without negatively affecting postharvest fruit quality parameters. The coatings reduced weight loss and maintained firmness, in addition to delaying changes in fruit color during storage. Coatings formulated with CWN + CEO were the most efficient formulations in reducing the incidence and severity of fruit rots during storage. CWN coatings incorporating CEO present additional functionalities in maintaining postharvest quality parameters of papaya fruits. (AU)

• FAPESP's process: 18/10657-0 - Effect of ginger essential oil in nano-emulsion coatings on papaya: evaluation of aroma volatiles, fruit pathogens and post-harvest fruit decay
• Grantee: Marcela Miranda
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 18/24612-9 - Application of nanoemulsions with essential oils as natural coatings for application in post-harvesting strawberry conservation
• Grantee: Josemar Gonçalves de Oliveira Filho
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/23419-5 - Application of ginger extracts as natural fungicid in nanoestrutured coatings on papaya fruit postharvest
• Grantee: Marcela Miranda
• Support Opportunities: Scholarships in Brazil - Doctorate