Data/hora: 23/06/2024 06:56:51

Biblioteca(s): 	Embrapa Instrumentação.	
Data corrente: 	21/06/2021	
Data da última atualização: 	10/06/2022	
Autoria: 	MENDES, J. F.; NORCINO, L. B.; MARTINS, H. H.; MANRICH, A.; OTONI, C. G.; CARVALHO, E. E. N.; PICCOLLI, R. H.; OLIVEIRA, J. E.; PINHEIRO, A. C. M.; MATTOSO, L. H. C.	
Afiliação: 	LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA.	
Título: 	Development of quaternary nanocomposites made up of cassava starch, cocoa butter, lemongrass essential oil nanoemulsion, and brewery spent grain fibers.	
Ano de publicação: 	2021	
Fonte/Imprenta: 	Journal of Food Science, v. 86, n. 5, 2021.	
Páginas: 	1979?1996	
DOI: 	10.1111/1750-3841.15689	
Idioma: 	Inglês	
Conteúdo: 	We report on production of novel quaternary nanocomposite films based on thermoplastic starch (TPS, 8% w/v) derived from cassava, cocoa butter, (CB, 30% wt.%), and lemongrass essential oil (LEO, 1:1) nanoemulsions reinforced with different concentrations of brewery spent grain (BSG, 5 or 10 wt.%) fibers, by continuous casting. The chemical composition, the morphological, thermal, mechanical properties, film barrier, biodegradability in the vegetable compound, in addition to the application in chocolates, have been widely studied. The addition of CB, LEO, and BSG caused relevant changes in the starchbased films, such as increased extensibility (from 2.4-BSG5 to 9.4%-BSG10) and improved barrier to moisture (2.9 and 2.4 g.mm.kPa−1 .h−1 .m−2). Contrastingly, the thermal stability of the starch film was slightly decreased. The biodegradability of the herein developed quaternary nanocomposite films was the same as that of TPS films, eliminating concerns on the supplementation with active ingredients that are expected to have some biocidal effect. Despite checking antimicrobial activity only by contact under the biocomposites, chocolates packed with the films were well accepted by consumers, especially the samples of white chocolate stored in the BSG5 biocomposite. Overall, this new approach towards quaternary active, biodegradable films produced in a pilot-scale lamination unit was successful in either improving or at least maintaining the essential properties of TPS-based films for food packaging applications, while providing them with unique features and functionalities.	
Palavras-Chave: 	Active packaging; Biorefinery; Composite films; Lemongrass essential oil.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Instrumentação (CNPDIA)	
Exemplares: 	CNPDIA - (17794-1) - UPC - AP - DD - PROCI.21/53 -  - 2021/53 - DIS