caa a22 4500 467886644 CHVBK 20180406152736.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10924-006-0009-4 doi (NATIONALLICENCE)springer-10.1007/s10924-006-0009-4 Anaerobic Biodegradation of Blends Based on Polyvinyl Alcohol [Elektronische Daten] [Jiří Pšeja, Hana Charvátová, Petr Hruzík, Josef Hrnčiřík, Jan Kupec] The presented work deals with blends composed of polyvinyl alcohol (PVA) and biopolymers (protein hydrolysate, starch, lignin). PVA does not belong to biologically inert plastics but its degradation rate (particularly under anaerobic conditions) is low. A potential solution to the issue problem lies in preparation of blends with readily degradable substrates. We studied degradation of blow-molded films made of commercial PVA and mentioned biopolymers in an aqueous anaerobic environment employing inoculation with digested activated sludge from the municipal wastewater treatment plant. Films prepared in the first experimental series were to be used for comparing biodegradation of blends modified with native or plasticized starch; in this case effect of plasticization was not proved. The degree of PVA degradation after modification with native or plasticized starch increases in a striking and practically same manner already at a starch level as low as approximately 5wt.%. Films of the second experimental series were prepared as additionally modified with protein hydrolysate and lignin. Only lignin-modified samples exhibited a somewhat lower degree of biodegradation but regarding the measure of lignin present in blend this circumstance is not essential. Level of biodegradation with all discussed films differed only slightly—within range of experimental error. Springer Science+Business Media, Inc., 2006 Biodegradation nationallicence Anaerobic nationallicence Biopolymers nationallicence Polyvinyl alcohol nationallicence Blends nationallicence Pšeja Jiří Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut Charvátová Hana Institute of Process Control and Applied Informatics, Faculty of Applied Informatics, Tomas Bata University, Nad Stráněmi 4511, 760 05, Zlín, Czech Republic aut Hruzík Petr Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut Hrnčiřík Josef Department of Food Engineering and Chemistry, Faculty of Technology, Tomas Bata University, Nám. T.G.M. 275, 762 72, Zlín, Czech Republic aut Kupec Jan Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 185-190 1566-2543 14:2<185 2006 14 10924 https://doi.org/10.1007/s10924-006-0009-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-006-0009-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pšeja Jiří Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut NATIONALLICENCE 700 1- Charvátová Hana Institute of Process Control and Applied Informatics, Faculty of Applied Informatics, Tomas Bata University, Nad Stráněmi 4511, 760 05, Zlín, Czech Republic aut NATIONALLICENCE 700 1- Hruzík Petr Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut NATIONALLICENCE 700 1- Hrnčiřík Josef Department of Food Engineering and Chemistry, Faculty of Technology, Tomas Bata University, Nám. T.G.M. 275, 762 72, Zlín, Czech Republic aut NATIONALLICENCE 700 1- Kupec Jan Department of Environment Protection Engineering, Faculty of Technology, Tomas Bata University, Nám. TGM 275, 762 72, Zlín, Czech Republic aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 185-190 1566-2543 14:2<185 2006 14 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer