Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 88, Issue -, Pages 515-526Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2016.04.017
Keywords
Biobased composites; Poly(lactic acid) systems; Biodegradation; Trichoderma viride fungus
Funding
- Romanian National Authority for Scientific Research CNCS-UEFISCDI
- project: Bionanomed: Antimicrobial bionanocomposites for medical applications, Grant PCCA/II [164/2012]
- project: Interdisciplinary research on multifunctional hybrid particles for bio-requirements INTERBIORES [PN-II-PT-PCCA-2011-3.2-0428, 211/2012]
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The purpose of this study was to assess the biodegradation of poly(lactic acid) (PLA) and some plasticized PLA based systems by Trichoderma viride fungus, in liquid medium and controlled laboratory conditions. The studied systems were achieved using PLA, hydrolyzed collagen (HC) as biological macromolecules and other additives by melt processing procedure. PLA and the systems' biodegradability was examined by the weight losses of the samples (after 7 and 21 days of exposure) and FTIR-ATR, GPC, SEM analyses (after 21 fungus inoculation days). The thermogravimetry (TG-DTG) study showed that the thermostability of the samples decreased after biodegradation and was influenced by the chemical structure of the systems' components. (C) 2016 Elsevier B.V. All rights reserved.
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