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Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria

Microplastic pollution is globally recognised as a serious environmental threat due to its ubiquitous presence related primarily to improper dumping of plastic wastes. While most studies have focused on microplastic contamination in the marine ecosystem, microplastic pollution in the soil environmen...

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Main Authors: Habib, Syahir, Iruthayam, Anastasia, Abd Shukor, Mohd Yunus, Alias, Siti Aisyah, Smykla, Jerzy, Yasid, Nur Adeela
Format: Article
Published: MDPI 2020
Subjects:
GE Environmental Sciences
GF Human ecology. Anthropogeography
Online Access:http://eprints.um.edu.my/36286/
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spelling my.um.eprints.362862023-11-29T12:17:26Z http://eprints.um.edu.my/36286/ Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria Habib, Syahir Iruthayam, Anastasia Abd Shukor, Mohd Yunus Alias, Siti Aisyah Smykla, Jerzy Yasid, Nur Adeela GE Environmental Sciences GF Human ecology. Anthropogeography Microplastic pollution is globally recognised as a serious environmental threat due to its ubiquitous presence related primarily to improper dumping of plastic wastes. While most studies have focused on microplastic contamination in the marine ecosystem, microplastic pollution in the soil environment is generally little understood and often overlooked. The presence of microplastics affects the soil ecosystem by disrupting the soil fertility and quality, degrading the food web, and subsequently influencing both food security and human health. This study evaluates the growth and biodegradation potential of the Antarctic soil bacteria Pseudomonas sp. ADL15 and Rhodococcus sp. ADL36 on the polypropylene (PP) microplastics in Bushnell Haas (BH) medium for 40 days. The degradation was monitored based on the weight loss of PP microplastics, removal rate constant per day (K), and their half-life. The validity of the PP microplastics' biodegradation was assessed through structural changes via Fourier transform infrared spectroscopy analyses. The weight loss percentage of the PP microplastics by ADL15 and ADL36 after 40 days was 17.3% and 7.3%, respectively. The optimal growth in the BH media infused with PP microplastics was on the 40th and 30th day for ADL15 and ADL36, respectively. The infrared spectroscopic analysis revealed significant changes in the PP microplastics' functional groups following the incubation with Antarctic strains. MDPI 2020-11 Article PeerReviewed Habib, Syahir and Iruthayam, Anastasia and Abd Shukor, Mohd Yunus and Alias, Siti Aisyah and Smykla, Jerzy and Yasid, Nur Adeela (2020) Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria. Polymers, 12 (11). ISSN 2073-4360, DOI https://doi.org/10.3390/polym12112616 <https://doi.org/10.3390/polym12112616>. 10.3390/polym12112616
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic GE Environmental Sciences
GF Human ecology. Anthropogeography
spellingShingle GE Environmental Sciences
GF Human ecology. Anthropogeography
Habib, Syahir
Iruthayam, Anastasia
Abd Shukor, Mohd Yunus
Alias, Siti Aisyah
Smykla, Jerzy
Yasid, Nur Adeela
Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
description Microplastic pollution is globally recognised as a serious environmental threat due to its ubiquitous presence related primarily to improper dumping of plastic wastes. While most studies have focused on microplastic contamination in the marine ecosystem, microplastic pollution in the soil environment is generally little understood and often overlooked. The presence of microplastics affects the soil ecosystem by disrupting the soil fertility and quality, degrading the food web, and subsequently influencing both food security and human health. This study evaluates the growth and biodegradation potential of the Antarctic soil bacteria Pseudomonas sp. ADL15 and Rhodococcus sp. ADL36 on the polypropylene (PP) microplastics in Bushnell Haas (BH) medium for 40 days. The degradation was monitored based on the weight loss of PP microplastics, removal rate constant per day (K), and their half-life. The validity of the PP microplastics' biodegradation was assessed through structural changes via Fourier transform infrared spectroscopy analyses. The weight loss percentage of the PP microplastics by ADL15 and ADL36 after 40 days was 17.3% and 7.3%, respectively. The optimal growth in the BH media infused with PP microplastics was on the 40th and 30th day for ADL15 and ADL36, respectively. The infrared spectroscopic analysis revealed significant changes in the PP microplastics' functional groups following the incubation with Antarctic strains.
format Article
author Habib, Syahir
Iruthayam, Anastasia
Abd Shukor, Mohd Yunus
Alias, Siti Aisyah
Smykla, Jerzy
Yasid, Nur Adeela
author_facet Habib, Syahir
Iruthayam, Anastasia
Abd Shukor, Mohd Yunus
Alias, Siti Aisyah
Smykla, Jerzy
Yasid, Nur Adeela
author_sort Habib, Syahir
title Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
title_short Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
title_full Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
title_fullStr Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
title_full_unstemmed Biodeterioration of Untreated Polypropylene Microplastic Particles by Antarctic Bacteria
title_sort biodeterioration of untreated polypropylene microplastic particles by antarctic bacteria
publisher MDPI
publishDate 2020
url http://eprints.um.edu.my/36286/
_version_ 1783945852492972032
score 13.211869

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