Uniaxial and Coaxial Electrospinning for Tailoring Jussara Pulp Nanofibers

Author(s)

Ramos, Sergiana dos P. ^[1] ; Giaconia, Michele A. ^[1] ; Assis, Marcelo ^[2] ; Jimenez, Paula C. ^[3] ; Mazzo, Tatiana M. ^[3] ; Longo, Elson ^[2] ; De Rosso, Veridiana V. ^[1] ; Braga, Anna R. C. ^{[1, 4]}

Affiliation

^[1] Univ Fed Sao Paulo UNIFESP, Dept Biosci, Silva Jardim St 136, BR-1101502 Santos, SP - Brazil

^[2] CDMF LIEC UFSCar, Dept Chem, POB 676, BR-13560970 Sao Carlos, SP - Brazil

^[3] Univ Fed Sao Paulo UNIFESP, Inst Marine Sci, BR-11070100 Santos, SP - Brazil

^[4] Univ Fed Sao Paulo UNIFESP, Dept Chem Engn, Campus Diadema, BR-09972270 Diadema, SP - Brazil

• Document type: Journal article
• Source: Molecules; v. 26, n. 5 MAR 2021.
• Web of Science Citations: 0

Abstract

Jussara pulp (Euterpe edulis Mart.) is rich in bioactive compounds known to be protective mediators against several diseases. In this context, nevertheless, anthocyanins, the most abundant natural pigment in jussara, are sensitive to temperature, pH, oxygen, and light conditions, leading to instability during food storage or digestion, and, thus jeopardizing the antioxidant proprieties retained by these flavonoids and limiting industrial application of the pulp. The production of nanostructures, from synthetic and natural polymers, containing natural matrices rich in bioactive compounds, has been widely studied, providing satisfactory results in the conservation and maintenance of the stability of these compounds. The current work aimed to compare uniaxial and coaxial electrospinning operation modes to produce core-shell jussara pulp nanofibers (NFs). Additionally, the parameters employed in the electrospinning processes were optimize using response surface methodology in an attempt to solve stability issues for the bioactive compounds. The best experimental conditions provided NFs with diameters ranging between 110.0 +/- 47 and 121.1 +/- 54 nm. Moreover, the coaxial setup improved jussara pulp NF formation, while further allowing greater integrity of NFs structures. (AU)

• 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: 20/06732-7 - A panoramic study for the use of Spirulina biomass: from the bioactive compound's extraction to their encapsulation and application
• Grantee: Anna Rafaela Cavalcante Braga
• Support Opportunities: Regular Research Grants
• 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
• 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: 13/07296-2 - CDMF - Center for the Development of Functional Materials
• Grantee: Elson Longo da Silva
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
• FAPESP's process: 19/08975-7 - Multi-User Equipment approved in grant 2018/15539-6: modular compact rheometer and accessories
• Grantee: Fabiana Perrechil Bonsanto
• Support Opportunities: Multi-user Equipment Program