Antibacterial cellulose papers loaded with different isolated active compounds for food packaging applications

Autor(es)

de Oliveira, Eder Ramin ^[1] ; Lucio Campini, Priscila Almeida ^[1] ; de Souza, Alana Gabrieli ^[1] ; da Silva, Cristina Gomes ^[2] ; Yudice, Eliana Della Coletta ^[3] ; Rosa, Derval dos Santos ^[1]

Afiliação do(s) autor(es)

^[1] Fed Univ ABC, Engn Modeling & Appl Social Sci Ctr CECS, Santo Andre, SP - Brazil

^[2] Univ Fed Amazonas, Manaus, Amazonas - Brazil

^[3] Adolfo Lutz Inst, Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IRANIAN POLYMER JOURNAL; JUL 2021.
• Citações Web of Science: 0

Resumo

The growing trend in biodegradable and renewable materials has generated a demand for new food packaging applications. This study aimed to produce active cellulose-based papers incorporated with two different essential oil isolated active compounds, eugenol, and linalool, to promote the inhibition of pathogenic bacteria's growth. Cellulose was extracted from eucalyptus sawdust by receiving chemical and mechanical treatment and incorporating the active compounds by microwave. FTIR, SEM, TGA, DSC, and antibacterial activity against E. coli, Salmonella, S. aureus, and L. monocytogenes characterized active papers prepared by casting. Cellulose-eugenol papers showed chemical interactions by hydrogen bonding, in concern to linalool paper bands, identified by FTIR results. Highlighting that after the active compound's addition, the hydrogen energy bond values decreased from 22.5 to 22.3 kJ mol(-1), confirming the cellulose fibers' swelling with the oils, which slightly amorphized the papers. The active compounds changed the paper's morphology, increasing porosity and roughness, as seen in the SEM images. Besides, TGA indicated that the active compounds increased the papers' thermal resistance. The active papers exhibited excellent antimicrobial activity against all the microorganisms; the cellulose-eugenol papers demonstrated a more significant antibacterial effect (24 mm), with a larger inhibition zone than linalool paper (12 mm). These results revealed that cellulose-based papers containing eugenol or linalool have good potential to prepare antimicrobial edible papers or coatings for various types of food packaging applications. (AU)

• 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