Data/hora: 04/06/2024 05:41:16

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 05/12/2022
Data da última atualização: | 03/01/2023
Autoria: | SOUZA, G. P. G. de; DUARTE, D. do S.; SOUZA, A. V. de; RIBEIRO JUNIOR, P. M.; LIMA, M. A. C. de; BRITTO, D. de.
Afiliação: | GUSTAVO PEREIRA GOMES DE SOUZA, UFPE; DIRLIANE DO SANTOS DUARTE, UNIVASF; ANA VALERIA VIEIRA DE SOUZA, CPATSA; PEDRO MARTINS RIBEIRO JUNIOR, CPATSA; MARIA AUXILIADORA COELHO DE LIMA, CPATSA; DOUGLAS DE BRITTO, CPATSA.
Título: | Active antifungal edible coating based on nanocomposite cast films from galactomannan.
Ano de publicação: | 2023
Fonte/Imprenta: | International Journal Postharvest Technology and Innovation, 2023.
Idioma: | Inglês
Notas: | On-line
Conteúdo: | Galactomannan is a filmogenic polysaccharide suitable for edible coatings. The addition of nanoencapsulated active ingredients improves its antifungal activity. In this way, nanocomposite materials were developed based on galactomannan and anoencapsulated essential oil and polyphenols, extracted, respectively from Lippia grata and grape skin by-products. The size of chitosan nanoparticles increased after encapsulation, varying from 42 ± 24 to 295 ± 0 nm for polyphenols. Overall, the nanoparticle suspension was stable, with encapsulation efficiency close to 20% for the essential oil and 90% for polyphenols. Nanocomposite films were isolated by casting and characterized by scanning electron microscopy (SEM), infrared spectroscopy (FTIR), water vapour permeability, mechanical properties, release profile, and antifungal activity. By SEM, the films showed good nanoparticle dispersion in the matrix and improved mechanical properties compared to the non-added film. The sample based on essential oil showed good antifungal activity against Lasiodiplodia theobromae. Such properties make these films adequate for postharvest coating applications.
Palavras-Chave: | Encapsulamento; Filme comestível; Goma de algaroba; Nanopartícula; Quitosana; Revestimento comestível.
Thesagro: | Óleo Essencial.
Thesaurus Nal: | Edible films; Encapsulation; Essential oils; Mesquite gum.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1149181/1/Active-antifungal-edible-coating-based-2023.pdf
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (60188-1) - UPC - AP - DD -  -  -  - DIS