Data/hora: 11/06/2024 08:43:02

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 18/11/2022
Data da última atualização: | 23/01/2024
Autoria: | BRANDÃO, R. M.; CARDOSO, M. das G.; BATISTA, L. R.; CAETANO, A. R. S.; LEMOS, A. C. C.; MARTINS, M. A.; NELSON, D. L. OLIVEIRA, J. E. de.
Afiliação: | MARIA ALICE MARTINS, CNPDIA.
Título: | Antifungal and physicochemical properties of Ocimum .essential oil loaded in poly(lactic acid) nanofibers
Ano de publicação: | 2022
Fonte/Imprenta: | Letters in Applied Microbiology, v. 74, n. 5, 2022.
Páginas: | 765-776
ISSN: | 0266-8254
DOI: | 10.1111/lam.13661
Idioma: | Inglês
Conteúdo: | Poly(lactic acid) (PLA) nanofibres containing different proportions of theessential oils from Ocimum basilicum L. and Ocimum gratissimum L. were prepared by solution blow spinning method. The essential oils were extracted by hydrodistillation and characterized by gas chromatography. MEV, contact angle, DSC and FTIR were used to characterize the nanofibres. The effect of bioative nanofibres on the growth of the fungus and on the production of ochratoxin A were evaluated using the fumigation test. Linalool, 18-cineole and camphor were the principal components of the essential oil from O. basilicum, and eugenol was the principal constituent in the oil from O. gratissimum. An increase in the average diameter of the nanofibres was observed with the addition of the essential oils. The essential oils acted as a plasticizer, resulting in a reduction in the crystallinity of the PLA. The encapsulation of essential oils in PLA nanofibres was verified by FTIR. An effective antifungal and antimicotoxygenic activity against Aspergillus ochraceus and Aspergillus westerdjikiae was observed for the bioative nanofibres. These results confirm the potential of PLA nanofibres containing the essential oils for the control of toxigenic fungi that cause the deterioration of food and are harmful to human health.
Palavras-Chave: | Control of fungal; Synthetic fungicides.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (18115-1) - UPC - AP - DD - PROCI.22/147 -  - 2022/152 - DIS