Identification of important abiotic and biotic factors in the biodegradation of poly(l-lactic acid)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F14%3A43871925" target="_blank" >RIV/70883521:28610/14:43871925 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28110/14:43871925

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2014.04.050" target="_blank" >http://dx.doi.org/10.1016/j.ijbiomac.2014.04.050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2014.04.050" target="_blank" >10.1016/j.ijbiomac.2014.04.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Identification of important abiotic and biotic factors in the biodegradation of poly(l-lactic acid)

Popis výsledku v původním jazyce

The biodegradation of four poly(l-lactic acid) (PLA) samples with molecular weights (MW) ranging from approximately 34 to 160kgmol-1 was investigated under composting conditions. The biodegradation rate decreased, and initial retardation was discerniblein parallel with the increasing MW of the polymer. Furthermore, the specific surface area of the polymer sample was identified as the important factor accelerating biodegradation. Microbial community compositions and dynamics during the biodegradation ofdifferent PLA were monitored by temperature gradient gel electrophoresis, and were found to be virtually identical for all PLA materials and independent of MW. A specific PLA degrading bacteria was isolated and tentatively designated Thermopolyspora flexuosa FTPLA. The addition of a limited amount of low MW PLA did not accelerate the biodegradation of high MW PLA, suggesting that the process is not limited to the number of specific degraders and/or the induction of specific enzymes. In

Název v anglickém jazyce

Identification of important abiotic and biotic factors in the biodegradation of poly(l-lactic acid)

Popis výsledku anglicky

The biodegradation of four poly(l-lactic acid) (PLA) samples with molecular weights (MW) ranging from approximately 34 to 160kgmol-1 was investigated under composting conditions. The biodegradation rate decreased, and initial retardation was discerniblein parallel with the increasing MW of the polymer. Furthermore, the specific surface area of the polymer sample was identified as the important factor accelerating biodegradation. Microbial community compositions and dynamics during the biodegradation ofdifferent PLA were monitored by temperature gradient gel electrophoresis, and were found to be virtually identical for all PLA materials and independent of MW. A specific PLA degrading bacteria was isolated and tentatively designated Thermopolyspora flexuosa FTPLA. The addition of a limited amount of low MW PLA did not accelerate the biodegradation of high MW PLA, suggesting that the process is not limited to the number of specific degraders and/or the induction of specific enzymes. In

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

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Svazek periodika

71

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

155-162

Kód UT WoS článku

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EID výsledku v databázi Scopus

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