The influence of three types of plant oil as antimicrobial agents in retarding the biodegradation of PHB

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The influence of three types of plant oil as antimicrobial agents in retarding the biodegradation of PHB

Popis výsledku v původním jazyce

Polyhydroxybutyrate (PHB) is a biodegradable polyester that belongs to Polyhydroxyalkanoates (PHA) and is favorable due to its high degradability compared to other biopolyesters. On the other hand, its high biodegradability sometimes limits its use. In this regard, retarding its biodegradation would represent a true value. In this experimental study, different types of plant oils were blended with PHB as the antimicrobial potential of some plant oils has been proved. The selected plant oils have an antimicrobial activity that can inhibit microorganisms living in the soil. The results show that the blending of these additives could retard the biodegradation of the polymer with different efficiency. The strongest effect was observed for green tangerine with almost 22% retardation, while the two other additives (cocoa and tree&apos;s pyrolysis) retarded the biodegradation only by about 5% after 216 days. SEM images complemented the results of biodegradation. For the biodegradation test, a mass spectrometer HPR-40 DSA (HIDEN Analytical, 2020, UK) was used to assess the polymer samples&apos; carbon content. Scanning electron microscopy (Phenom Pro Desktop SEM, Thermo Fisher Scientific, Waltham, MA, USA) was implemented to observe surface changes in various films in high vacuum mode at an acceleration voltage of 10 kV.

Název v anglickém jazyce

The influence of three types of plant oil as antimicrobial agents in retarding the biodegradation of PHB

Popis výsledku anglicky

Polyhydroxybutyrate (PHB) is a biodegradable polyester that belongs to Polyhydroxyalkanoates (PHA) and is favorable due to its high degradability compared to other biopolyesters. On the other hand, its high biodegradability sometimes limits its use. In this regard, retarding its biodegradation would represent a true value. In this experimental study, different types of plant oils were blended with PHB as the antimicrobial potential of some plant oils has been proved. The selected plant oils have an antimicrobial activity that can inhibit microorganisms living in the soil. The results show that the blending of these additives could retard the biodegradation of the polymer with different efficiency. The strongest effect was observed for green tangerine with almost 22% retardation, while the two other additives (cocoa and tree&apos;s pyrolysis) retarded the biodegradation only by about 5% after 216 days. SEM images complemented the results of biodegradation. For the biodegradation test, a mass spectrometer HPR-40 DSA (HIDEN Analytical, 2020, UK) was used to assess the polymer samples&apos; carbon content. Scanning electron microscopy (Phenom Pro Desktop SEM, Thermo Fisher Scientific, Waltham, MA, USA) was implemented to observe surface changes in various films in high vacuum mode at an acceleration voltage of 10 kV.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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