Biodegradation of low-density polyethylene (LDPE) plastic by actinomycetes isolated from Balikpapan coastal sediment, Indonesia

IF 4.9 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2025-05-15 DOI:10.1016/j.marpolbul.2025.118015

Sinda Dewi Lestari , Ariani Hatmanti , Nuning Vita Hidayati , Ahmad Kurnia , Nur Fitriah Afianti , Risky Ayu Kristanti , Edy Endrotjahjo , Helena Manik

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引用次数: 0

Abstract

Polyethylene plastics are a persistent pollutant due to their distribution, availability, and serious impacts on coastal ecosystems. This study evaluated the degradation mechanism during the 60-day incubation period of LDPE film using the best actinomycetes action isolated from Balikpapan coastal sediment, Indonesia. Their colonies have unique morphological characteristics and potentially utilize LDPE plastic as carbon sources. The weight loss was recorded in isolates NACTB22–4; NACTB22–8; NACTB22–9; and consortium were 0,3522 ± 0,0440 %; 0,2565 ± 0,1019 %; 0,3486 ± 0,1552 %; and 0,5075 ± 0,0304 %, respectively. Actinomycetes colonization was evident in morphology surface changes of LDPE film analyzed using a Scanning Electron Microscope (SEM) and transmittance values changes in their functional group using Fourier Transform Infrared (FT-IR).

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从巴厘岛海岸沉积物中分离的放线菌对低密度聚乙烯（LDPE）塑料的生物降解

聚乙烯塑料由于其分布、可获得性和对沿海生态系统的严重影响而成为一种持久性污染物。本研究利用从印度尼西亚巴里巴班海岸沉积物中分离的最佳放线菌，评估了LDPE薄膜在60天孵育期内的降解机制。它们的菌落具有独特的形态特征，具有利用LDPE塑料作为碳源的潜力。分离株NACTB22-4体重减轻；NACTB22-8;NACTB22-9;联合体为0,3522±0,0440%；0.2565±0.1019%；0.3486±0.1552%；分别为0,5075±0,0304%。扫描电镜（SEM）和傅里叶红外（FT-IR）分析结果表明，放线菌的定殖在LDPE膜的表面形态变化和官能团透射值的变化中是明显的。

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来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.