000075947 001__ 75947
000075947 005__ 20190709135736.0
000075947 0247_ $$2doi$$a10.3390/coatings8120415
000075947 0248_ $$2sideral$$a108842
000075947 037__ $$aART-2018-108842
000075947 041__ $$aeng
000075947 100__ $$aSilva Castro, Iosody
000075947 245__ $$aChitosan-based coatings to prevent the decay of Populus spp. wood caused by Trametes versicolor
000075947 260__ $$c2018
000075947 5060_ $$aAccess copy available to the general public$$fUnrestricted
000075947 5203_ $$aChitosan and chitosan oligomers are receiving increasing attention due to their antimicrobial properties. In the present study, they were assayed as a preventive treatment against white-rot decay of Populus wood (very important in economic and environmental terms), caused by Trametes versicolor fungus. Their capacity to incorporate different chemical species into the polymer structure with a view to improving their anti-fungal activity was also assessed by mixing oligo-chitosan with propolis and silver nanoparticles. The minimum inhibitory concentration of medium-molecular weight chitosan (MMWC), chitosan oligomers (CO), propolis (P), nanosilver (nAg), and their binary and ternary composites against T. versicolor was determined in vitro. Although all products exhibited anti-fungal properties, composites showed an enhanced effect as compared to the individual products: 100% mycelial growth inhibition was attained for concentrations of 2.0 and 0.2 mg·mL−1 for the CO-P binary mixture, respectively; and 2 µg·mL−1 for nAg in the ternary mixture. Subsequently, MMWC, CO, CO-P and CO-P-nAg composites were tested on poplar wood blocks as surface protectors. Wood decay caused by the fungus was monitored by microscopy and vibrational spectroscopy, evidencing the limitations of the CO-based coatings in comparison with MMWC, which has a higher viscosity and better adhesion properties. The usage of MMWC holds promise for poplar wood protection, with potential industrial applications.
000075947 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000075947 590__ $$a2.33$$b2018
000075947 591__ $$aMATERIALS SCIENCE, COATINGS & FILMS$$b7 / 20 = 0.35$$c2018$$dQ2$$eT2
000075947 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000075947 700__ $$aCasado Sanz, Milagros
000075947 700__ $$aAlonso Cortés, Agustín L.
000075947 700__ $$0(orcid)0000-0003-2713-2786$$aMartín-Ramos, Pablo$$uUniversidad de Zaragoza
000075947 700__ $$aMartín Gil, Jesús
000075947 700__ $$aAcuña Rello, Luis
000075947 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000075947 773__ $$g8, 12 (2018), 415 [15 pp.]$$pCoatings$$tCOATINGS$$x2079-6412
000075947 8564_ $$s1634100$$uhttps://zaguan.unizar.es/record/75947/files/texto_completo.pdf$$yVersión publicada
000075947 8564_ $$s108066$$uhttps://zaguan.unizar.es/record/75947/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000075947 909CO $$ooai:zaguan.unizar.es:75947$$particulos$$pdriver
000075947 951__ $$a2019-07-09-13:09:53
000075947 980__ $$aARTICLE