The influence of PBAT content in the nanocapsules preparation and its effect in essential oils release

Autor(es)

da Silva Barbosa, Rennan Felix ^[1] ; de Souza, Alana Gabrieli ^[1] ; Rangari, Vijaya ^[2] ; Rosa, Derval dos Santos ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC UFABC Santo Andre, Ctr Engn Modelagem & Ciencias Socials Aplicadas C, Ave Estados 5001, BR-09210580 Santo Andre, SP - Brazil

^[2] Tuskegee Univ, Dept Mat Sci & Engn, Tuskegee, AL 36088 - USA

• Tipo de documento: Artigo Científico
• Fonte: Food Chemistry; v. 344, MAY 15 2021.
• Citações Web of Science: 1

Resumo

Nanoencapsulation provides new alternatives for the food industry, enabling a controlled and slow release of active antimicrobial agents, such as essential oils (EO). Poly (butylene adipate-co-terephthalate) (PBAT) nanocapsules loaded with linalool EO were prepared using an extrusion method with 1, 3, and 5% w/v (PBAT to chloroform). Nanocapsules' sizes ranged from 100 to 250 nm and were spherical. The release profile was studied using an ethanoic medium over 24 h, and according to the Korsmeyer-Peppas model, a Fick diffusion mechanism was involved. FT-IR and thermogravimetric analyses confirmed EO encapsulation with an encapsulation efficiency of 55%, 71%, and 74% for 1, 3, and 5%, respectively. The results indicated that encapsulation depended on organic phase concentration, with higher PBAT contents achieving better results. The resulting nanocapsules had antimicrobial activity against E. coli, which could be extended to develop active packaging systems. (AU)

• Processo FAPESP: 18/25239-0 - Evolução da dispersão de nanoestruturas de celulose modificadas aplicadas em bionanocompósitos
• Beneficiário: Derval dos Santos Rosa
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 18/11277-7 - Filmes de PBAT com nanoestruturas de celulose tratadas com óleos essenciais encapsulados para embalagens ativas
• Beneficiário: Derval dos Santos Rosa
• Modalidade de apoio: Auxílio à Pesquisa - Regular