Antioxidant potential of eugenol and ginger essential oils with gelatin/chitosan films

Author(s)

Bonilla, Jeannine ^[1] ; Poloni, Talita ^[1] ; Lourenco, Rodrigo V. ^[1] ; Sobral, Paulo J. A. ^[1]

Affiliation

^[1] Univ Sao Paulo, Sch Anim Sci & Food Engn, Av Duque Caxias Norte 225, BR-13635900 Pirassununga, SP - Brazil

• Document type: Journal article
• Source: FOOD BIOSCIENCE; v. 23, p. 107-114, JUN 2018.
• Web of Science Citations: 10

Abstract

Eugenol and ginger essential oils were incorporated in different film formulations to produce active films that might be used as food packaging. Optical, microstructural, mechanical, and barrier properties were characterized, as well as their antioxidant activity. Fourier transformed infrared spectroscopy analysis confirmed the presence of new bands with addition of eugenol or ginger essential oils, and scanning electron microscopy and atomic force microscopy analyses showed an increases in roughness values (p < 0.05), which may be due to the no-homogeneous distribution of oils in film matrix. A significant increase of elasticity (p < 0.05) was observed in all films after any antioxidant incorporation, while water vapor permeability was not greatly affected. Films based on a gelatin-chitosan blend with the addition of eugenol showed the best antioxidant activity based on the Trolox-equivalent-antioxidant-capacity test (p < 0.05), highlighting its potential use as active packaging for shelf life extension of food products with high oxidation potential. (AU)

• FAPESP's process: 13/07914-8 - FoRC - Food Research Center
• Grantee: Bernadette Dora Gombossy de Melo Franco
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
• FAPESP's process: 14/03288-8 - Development and application of bioactive edible films with antioxidant and/or antimicrobial properties for food use
• Grantee: María Jeannine Bonilla Lagos
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 16/07009-1 - Preparation and characterization of bioactive gelatin-chitosan based films, incorporating essential oils of ginger or eugenol
• Grantee: Talita Souza Poloni
• Support Opportunities: Scholarships in Brazil - Scientific Initiation