Arrowroot starch-based films incorporated with a carnauba wax nanoemulsion, cellulose nanocrystals, and essential oils: a new functional material for food packaging applications

Author(s)

de Oliveira Filho, Josemar Goncalves ^[1] ; Albiero, Beatriz Regina ^[2] ; Cipriano, Lavinia ^[3] ; de Oliveira Nobre Bezerra, Carmen Cris ^[3] ; Oldoni, Fernanda Campos Alencar ^[1] ; Egea, Mariana Buranelo ^[4] ; de Azeredo, Henriette Monteiro Cordeiro ^{[5, 6]} ; Ferreira, Marcos David ^[6]

Affiliation

^[1] Sao Paulo State Univ UNESP, Sch Pharmaceut Sci, Rod Araraquara Jau Km 1 Machados, Araraquara, SP - Brazil

^[2] Univ Sao Paulo, Sao Carlos Inst Chem IQSC, Sao Carlos - Brazil

^[3] Univ Fed Sao Carlos, Dept Biol, Sao Carlos - Brazil

^[4] Goiano Fed Inst Educ Sci & Technol, Campus Rio Verde, Rio Verde - Brazil

^[5] EMBRAPA Agroind Trop, Brazilian Agr Res Corp, Fortaleza, Ceara - Brazil

^[6] Embrapa Instrumentacao, Brazilian Agr Res Corp, Sao Carlos - Brazil

• Document type: Journal article
• Source: Cellulose; v. 28, n. 10, p. 6499-6511, JUL 2021.
• Web of Science Citations: 0

Abstract

Arrowroot starch (AA)-based films incorporated with a carnauba wax nanoemulsion (CWN), cellulose nanocrystals (CNCs), and essential oils (EOs) from Mentha spicata (MEO) and Cymbopogon martinii (CEO) were produced using the casting technique and then characterized in terms of their water barrier, tensile, thermal, optical, and microstructural properties and in vitro antifungal activity against Rhizopus stolonifer and Botrytis cinerea. Whereas the incorporation of CNCs decreased the moisture content and water vapor permeability of the AA/CWN/CNC film, the additional incorporation of either EO decreased the transparency and affected the microstructure of the AA/CWN/CNC/EO nanocomposites. MEO and CEO incorporation improved the thermal stability of the films and provided excellent protection against fruit-spoiling fungi. Because of their excellent barrier properties against fungal growth, water vapor permeability, and ultraviolet and visible light, these AA/CWN/CNC/EO films have promising potential for application as active food packaging or coating materials. Graphic abstract (AU)

• 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