caa a22 4500 46788630X CHVBK 20180406152735.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1007/s10924-006-0017-4 doi (NATIONALLICENCE)springer-10.1007/s10924-006-0017-4 Mechanical Properties, Water Vapor Permeability and Water Affinity of Feather Keratin Films Plasticized with Sorbitol [Elektronische Daten] [Sílvia Martelli, Geovana Moore, João Laurindo] In poultry industry chicken feathers are normally hydrolyzed and used to prepare animal feed. In this work the use of this material to prepare films was investigated. Keratins were extracted from chicken feathers with 2-mercaptoethanol in concentrated urea solution using sodium dodecyl sulfate (SDS). The effect of varying the amount of sorbitol on properties of chicken feather keratin (CFK) was investigated. As the concentration of plasticizer increased, the moisture content (MC) of these films increase, the monolayer MC increased from 0.060 (without plasticizer) to 0.482g water/g dry matter (0.30g sorbitol/g keratin). The water vapor permeability (WVP) varied between 0.096g/msPa and 8.098g/msPa for films without sorbitol and with 0.30g sorbitol/g keratin, respectively. Film strength decreased from 5.13MPa to 0.45MPa and the elongation at break achieved the maximum value of 52.75% for samples with 0.02g sorbitol/g keratin. The dry matter density didn't change significantly, varying between 0.86-0.89g/cm3 for all samples. Films with potential applications in food packaging can be obtained from CFKs. However, further researches are necessary to decrease film solubility and increase mechanical resistance. Springer Science+Business Media, Inc., 2006 Feather nationallicence Keratin nationallicence Films nationallicence Sorbitol nationallicence Properties nationallicence Martelli Sílvia Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut Moore Geovana Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut Laurindo João Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/3(2006-07-01), 215-222 1566-2543 14:3<215 2006 14 10924 https://doi.org/10.1007/s10924-006-0017-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-006-0017-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martelli Sílvia Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut NATIONALLICENCE 700 1- Moore Geovana Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut NATIONALLICENCE 700 1- Laurindo João Department of Chemical and Food Engineering, Federal University of Santa Catarina, 88040-900, Florianópolis, SC, Brazil aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/3(2006-07-01), 215-222 1566-2543 14:3<215 2006 14 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer