Selected simple natural antimicrobial terpenoids as additives to control biodegradation of polyhydroxy butyrate
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F22%3A63555558" target="_blank" >RIV/70883521:28110/22:63555558 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/70883521:28610/22:63555558
Výsledek na webu
<a href="https://www.mdpi.com/1422-0067/23/22/14079" target="_blank" >https://www.mdpi.com/1422-0067/23/22/14079</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms232214079" target="_blank" >10.3390/ijms232214079</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Selected simple natural antimicrobial terpenoids as additives to control biodegradation of polyhydroxy butyrate
Popis výsledku v původním jazyce
In this experimental research, different types of essential oils (EOs) were blended with polyhydroxybutyrate (PHB) to study the influence of these additives on PHB degradation. The blends were developed by incorporating three terpenoids at two concentrations (1 and 3%). The mineralization rate obtained from CO2 released from each sample was the factor that defined biodegradation. Furthermore, scanning electron microscope (SEM), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA) were used in this research. The biodegradation percentages of PHB blended with 3% of eucalyptol, limonene, and thymol after 226 days were reached 66.4%, 73.3%, and 76.9%, respectively, while the rate for pure PHB was 100% after 198 days, and SEM images proved these results. Mechanical analysis of the samples showed that eucalyptol had the highest resistance level, even before the burial test. The other additives showed excellent mechanical properties although they had less mechanical strength than pure PHB after extrusion. The samples’ mechanical properties improved due to their crystallinity and decreased glass transition temperature (Tg). DSC results showed that blending terpenoids caused a reduction in Tg, which is evident in the DMA results, and a negligible reduction in melting point (Tm).
Název v anglickém jazyce
Selected simple natural antimicrobial terpenoids as additives to control biodegradation of polyhydroxy butyrate
Popis výsledku anglicky
In this experimental research, different types of essential oils (EOs) were blended with polyhydroxybutyrate (PHB) to study the influence of these additives on PHB degradation. The blends were developed by incorporating three terpenoids at two concentrations (1 and 3%). The mineralization rate obtained from CO2 released from each sample was the factor that defined biodegradation. Furthermore, scanning electron microscope (SEM), differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA) were used in this research. The biodegradation percentages of PHB blended with 3% of eucalyptol, limonene, and thymol after 226 days were reached 66.4%, 73.3%, and 76.9%, respectively, while the rate for pure PHB was 100% after 198 days, and SEM images proved these results. Mechanical analysis of the samples showed that eucalyptol had the highest resistance level, even before the burial test. The other additives showed excellent mechanical properties although they had less mechanical strength than pure PHB after extrusion. The samples’ mechanical properties improved due to their crystallinity and decreased glass transition temperature (Tg). DSC results showed that blending terpenoids caused a reduction in Tg, which is evident in the DMA results, and a negligible reduction in melting point (Tm).
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10511 - Environmental sciences (social aspects to be 5.7)
Návaznosti výsledku
Projekt
—
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
International Journal of Molecular Sciences
ISSN
1661-6596
e-ISSN
1422-0067
Svazek periodika
23
Číslo periodika v rámci svazku
22
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
11
Strana od-do
nestrankovano
Kód UT WoS článku
000887495600001
EID výsledku v databázi Scopus
2-s2.0-85142714648