Nanofibers of Jussara Pulp: A Tool to Prevent the Loss of Thermal Stability and the Antioxidant Activity of Anthocyanins after Simulated Digestion

Author(s)

Giaconia, Michele Amendoeira ; Ramos, Sergiana dos Passos ; Neves, Bruna Vitoria ; Almeida, Larissa ; Costa-Lotufo, Leticia ; de Rosso, Veridiana Vera ; Cavalcante Braga, Anna Rafaela

• Document type: Journal article
• Source: PROCESSES; v. 10, n. 11, p. 12-pg., 2022-11-01.

Abstract

Electrospinning can produce a new composite for coating sensitive bioactive compounds, such as anthocyanins, and the product obtained from this process presents characteristics that potentialize the application of natural pigments in foodstuffs. The present work aimed to develop a new nanofiber composite with incorporated anthocyanins from jussara pulp using polyethylene oxide through electrospinning. A decay in the percentage of anthocyanins during digestion was observed. However, the polymeric solution and composites produced maintained the antioxidant activity, showing their protective effect on bioactive compounds; furthermore, both nanofibers and polymer solution improved the thermal stability of the anthocyanins. Thus, the results obtained potentiate electrospinning composites in processed food products since the nanofibers presented superior thermal stability and antioxidant activity, even after the digestion process in vitro. (AU)

• FAPESP's process: 18/01550-8 - Nanoestructures containing anthocyanins extracted from juçara pulp (Euterpe edulis Mart.): Interaction with lactic acid bacteria and bioavailability
• Grantee: Anna Rafaela Cavalcante Braga
• Support Opportunities: Regular Research Grants
• FAPESP's process: 20/03560-0 - Is the incorporation of jussara pulp into nanostructures an effective alternative to improve the biological effects of anthocyanins?
• Grantee: Michele Amendoeira Giaconia
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 18/13408-1 - Multi-user equipment approved in grant 2018/01550-8: electro-spray equipment to obtain bioactive compounds into nanostructures
• Grantee: Anna Rafaela Cavalcante Braga
• Support Opportunities: Multi-user Equipment Program