Data/hora: 01/06/2024 05:56:12

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 29/09/2022
Data da última atualização: | 01/02/2023
Autoria: | MENDES, J. F.; NORCINO, L. B.; MANRICH, A.; OLIVEIRA, T. J. P. de; MENDES, R. F.; MATTOSO, L. H. C.
Afiliação: | LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA.
Título: | Pectin-based color indicator films incorporated with spray-dried Hibiscus extract microparticles.
Ano de publicação: | 2022
Fonte/Imprenta: | Food Research International, v. 162, e111914, 2022.
Páginas: | 1 - 15
ISSN: | 0963-9969
DOI: | https://doi.org/10.1016/j.foodres.2022.111914
Idioma: | Inglês
Conteúdo: | Colorimetric films incorporated with anthocyanins as an indicator for freshness monitoring have aroused growing interest recently. The pH-sensing colorimetric film were developed based on pectin (HM), containing aqueous hibiscus extract microparticles (HAE). HAE microparticles were obtained by spray drying with different wall materials (Inulin -IN, maltodextrin- MD and their combination). The films were obtained on large scale by continuous casting. These films were characterized for physicochemical analysis, morphological structure, thermal and barrier properties, antioxidant activity, and color change at different pH. The addition of HAE microparticles caused relevant changes to HM-based films, such as in mechanical behavior and improved barrier property (11?22% WVTR reduction) depending on the type of wall material used and the concentration added. It was verified with the thermal stability of films, with a slight increase being observed. The color variation of smart films was entirely pH-dependent. Overall, the proposed color indicator films showed unique features and functionalities and could be used as an alternative natural pH indicator in smart packaging systems
Palavras-Chave: | Biopolymer films; Continuous casting; Intelligent packaging.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146969/1/P-Pectin-based-color-indicator-films-incorporated-with-spray-dried-Hibiscus.pdf
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (18066-1) - UPC - AP - DD - PROCI.22/104 -  - 2022/111 - DIS