Biodegradation of polyethylene by some bacteria Bacillus isolated from marine sediments in Khanh Hoa province, Vietnam

• Autorzy: Do Rhi Thu Hong , Phung Duc Tan , Phan Thanh Huan , Trinh Trong Nguyen , Truong Phuoc Thien Hoang , Thai Van Nam

Identyfikatory

DOI

10.29227/IM-2025-01-02-065

• Konferencja: CESD 2024 : Conference on Earth Sciences : November 11th, 2024, Ho Chi Minh City, Vietnam
• Języki publikacji: EN

Abstrakty

EN

Marine pollution caused by plastic waste is a worldwide concern. Of which, plastic waste originating from Polyethylene (PE) accounts for the highest proportion. This study focuses on evaluating the biodegradation ability of PE plastic of some bacteria belonging to the genus Bacillus isolated from marine sediments collected in Khanh Hoa province, Vietnam. Four bacterial strains including: C1.2, C3.4, C13.1, C17.1 reduced the weight of PE substrate after 45 days of culture (compared to the initial) by (%): 4.5 ± 0.058d , 3.6 ± 0.100c , 6.4 ± 0.100b , 6.7 ± 0.058a , respectively, completely equivalent to the results of determining laccase enzyme activity (U/ml): 974.0 ±3.61d , 649.3±3.06c , 791.7±1.53b , 1,206.0±3.61a . Scanning electron microscopy (SEM) images showed that bacteria created distinct cracks and dents on the surface of plastic pellets. The bacteria were then studied for a number of biological characteristics including colony and cell morphology, pH, temperature, salinity and PE substrate concentration limits, and identified through 16S rRNA gene sequencing. The four bacterial strains C1.2, C3.4, C13.1, C17.1 were closely related to species of the genus Bacillus including: Bacillus cereus, Bacillus amyloliquefaciens, Bacillus safensis, Bacillus megaterium. This study could be a premise for further studies on the treatment of saline PE plastic waste using marine bacteria.

Słowa kluczowe

EN

Bacillus; biodegradation; marine bacteria; polyethylene; waste plastic

PL

Bacillus; biodegradacja; bakterie morskie; polietylen; odpady plastikowe

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2025
• Tom: Vol. 2, no. 1
• Strony: art. no. 65
• Opis fizyczny: Bibliogr. 25 poz., tab., wyukr., zdj.

Twórcy

autor

Do Rhi Thu Hong

• Department of Biotechnology, Joint Vietnam - Russia Tropical Science and Technology Research Center, Nguyen Van Huyen Street, Hanoi,Vietnam
• Faculty of Environment and Natural Resources, Nong Lam University, Ho Chi Minh city, Vietnam

autor

Phung Duc Tan

• Department of Biotechnology, Joint Vietnam - Russia Tropical Science and Technology Research Center, Nguyen Van Huyen Street, Hanoi,Vietnam

autor

Phan Thanh Huan

• Center for New Technology Transfer, Joint Vietnam - Russia Tropical Science and Technology Research Center, Phan Van Tri Street, Ho Chi Minh city, Vietnam

autor

Trinh Trong Nguyen

• HUTECH Institute of Applied Sciences, HUTECH University, Ho Chi Minh City, Vietnam

autor

Truong Phuoc Thien Hoang

• Research Institute for Biotechnology and Environment, Nong Lam University, Ho Chi Minh City, Vietnam

autor

Thai Van Nam

• Institute of Postgraduate Studies, HUTECH University, Ho Chi Minh City, Vietnam

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2026).