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| Melo,Adriane Alexandre Machado de; Geraldine,Robson Maia; Silveira,Miriam Fontes Araujo; Torres,Maria Célia Lopes; Rezende,Cíntia Silva Minafra e; Fernandes,Thiago Henrique; Oliveira,Antonio Nonato de. |
| Antimicrobial active packaging delays or inhibits microorganism growth in packed products, and it can be used in a variety of food systems. The objective of the present research was to develop packaging incorporated with natural antimicrobial agents (active film). The effects of the active film on the spoilage, pathogenic microorganism counts, pH and color of the refrigerated chicken breast cuts were analyzed. Cellulose acetate-based active films incorporating two concentrations (20% and 50%, v/w) of rosemary (Rosmarinus officinalis L.) essential oil were manufactured and placed in contact with the chicken breast cuts for six days. An analysis of variance and mean comparison tests (Tukey's test, p<0.05) were performed on the results. The films that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Active packaging; Antimicrobial activity; Cellulose acetate; Rosmarinus officinalis L.; Chicken. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400025 |
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| Segala,Karen; Nista,Silvia Vaz Guerra; Cordi,Lívia; Bizarria,Maria Trindade Marques; Ávila Júnior,José de; Kleinubing,Sirlene Adriana; Cruz,Deborah Cristina; Brocchi,Marcelo; Lona,Liliane Maria Ferrareso; Caballero,Nelson Eduardo Durán; Mei,Lucia Helena Innocentini. |
| abstract This study examines the antimicrobial activity of silver nanoparticles incorporated into nanostructured membranes made of cellulose acetate (CA) and blends of chitosan/poly-(ethylene oxide, CTS/PEO) and prepared by electrospinning. The formation of chemically synthesized Ag nanoparticles (AgNPs) was monitored by UV-visible spectroscopy (UV-Vis) and characterized by transmission electron microscopy (TEM). The size distribution of the AgNPs was measured by dynamic light scattering (DLS), with an average size of approximately 20 nm. The presence of AgNPs on the surface of electrospun nanofibers was observed by field emission electron microscopy (FEG) and confirmed by TEM. The antimicrobial activity of AgNPs incorporated into nanostructured membranes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electrospinning; Silver nanoparticles/antibacterial activity; Cellulose acetate; Chitosan. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000400911 |
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