Promising New Material for Food Packaging: An Active and Intelligent Carrageenan Film with Natural Jaboticaba Additive

Foods

Elis Regina Correa Barreto¹  Marcilio Machado Morais¹  Luisa Bataglin Avila²  Gabriela Silveira da Rosa²  Caroline Costa Moraes³ 

[1] Chemical Engineering, Federal University of Pampa, 1650, Maria Anunciação Gomes Godoy Avenue, Bagé 96413-172, Brazil;Engineering Graduate Program, Federal University of Pampa, 1650, Maria Anunciação Gomes de Godoy Avenue, Bagé 96413-172, Brazil;Graduate Program in Science and Engineering of Materials, Federal University of Pampa, 1650, Maria Anunciação Gomes de Godoy Avenue, Bagé 96413-172, Brazil;

关键词: biopolymer;    pH indicator;    antimicrobial;    antioxidant;    phenolic compounds;    anthocyanins;   

DOI  :  10.3390/foods11060792

来源: DOAJ

【 摘 要 】

This research focused on the development of active and intelligent films based on a carrageenan biopolymer incorporated with jaboticaba peels extract (JPE). The bioactive extract was obtained by maceration extraction and showed high concentrations of total phenolic content (TP), total anthocyanin (TA), cyanidin-3-glucoside (Cn-3-Glu), antioxidant activity (AA), and microbial inhibition (MI) against E. coli, being promising for use as a natural additive in food packaging. The carrageenan films were produced using the casting technique, incorporating different concentrations of JPE, and characterized. The results of the thickness and Young’s modulus of the film increased in the films supplemented with JPE and the addition of the extract showed a decrease in elongation capacity and tensile strength, in water vapor permeability, and a lower rate of swelling in the water. In addition, the incorporation of JPE into the polymeric matrix promotes a change in the color of the films when compared to the control film and improves the opacity property. This is a positive effect as the material has a UV-vis light barrier which is interesting for food packaging. The increase in the active potential of the films was directly proportional to the concentration of JPE. The films results showed visible changes from purple to brown when in contact with different pH, which means that films have an intelligent potential. Accordingly, this novel carrageenan based-film incorporated with JPE could be a great strategy to add natural additives into packaging material to obtain an active potential and also an indicator for monitoring food in intelligent packaging.

【 授权许可】

Unknown