Naslov
Investigation of biodegradation of microplastic particles by bacterial cultures isolated from environment samples

Autori
Miloloža, Martina ; Ružaj, Lucija ; Bule, Kristina ; Prevarić, Viktorija ; Cvetnić, Matija ; Markić, Marinko ; Ukić, Šime ; Bolanča, Tomislav ; Ocelić Bulatović, Vesna ; Kučić Grgić, Dajana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
7th Croatian Congress of Microbiology with International Participation / Sviličić Petrić, Ines ; Leboš Pavunc, Andreja ; Šantić, Marina ; Kifer, Domagoj - Zagreb : Recedo digital, 2022, 104-104

ISBN
978-953-7778-18-7

Skup
7th Croatian Congress of Microbiology

Mjesto i datum
Sveti Martin na Muri, Hrvatska, 24.05.2022. - 27.05.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
microplastics ; biodegradation ; bacteria ; Bacillus subtilis ; Delftia acidovarans

Sažetak
A large and diverse use of plastic materials is one of the characteristics of the modern society. Consequently, such usage of plastics results in large amount of plastic waste ending up in the environment. Recently, special attention has been devoted to the environmental presence of tiny plastic particles (particles less than 5 mm) called microplastics (MPs). Biodegradation of MPs is one of the techniques for their removal from the environment. Despite the fact that the majority of plastics is not biodegradable, biodegradation is still among the most popular remediation techniques because it is highly economical and environmentally friendly. Various studies, applying single or combined bio-cultures such as bacteria, mold, yeast, or algae, have been investigated. In this work, investigation of biodegradation of microplastic particles has been tested. Bacteria were isolated from microplastics - enriched environmental samples. Biodegradation of polystyrene (PS) particles by Gram positive bacterium Bacillus subtilis and Gram negative bacterium Delftia acidovarans during 30 days had been performed. During the experiment, changes of the total number of bacterial cells (CFU), values of total (TC), organic (TOC) and inorganic (IC) carbon were determinate. Furthermore, ions values as well as released additives from PS particles into water phase were monitored by ion chromatography and LC/MS analysis, respectively. PS particles were analyzed by FTIR-ATR spectroscopy. According to the results, these bacteria are capable for biodegradation of PS particles.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

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