Petroleum-based plastic is a widely used commodity in modern living due to its extensive industrial and domestic applications. Polyethylene and polypropylene account for more than 50% of total plastic usage, and they resist decomposition in a natural environment. In this study, Lysinibacillus sp., isolated and identified as a novel strain, was investigated to decompose polyethylene and polypropylene. In the microbial cultivation medium without any physicochemical pretreatment, the Lysinibacillus sp. reduced the weight of polypropylene and polyethylene by approximately 4 and 9%, respectively, over 26 days. During the biodegradation of polyethylene and polypropylene, a rough surface increase was observed by scanning electron microscope (SEM) imaging.

Moreover, various oxidation products containing CH₂ groups produced from the decomposition of polyethylene and polypropylene were observed by GC–MS analysis. Results suggest that microorganisms can be used to degrade polyethylene and polypropylene without a physicochemical process. This can be a starting point for developing methods for remediating soil contaminated with plastics.

石油基塑料因其广泛的工业和家庭应用而成为现代生活中广泛使用的商品。聚乙烯和聚丙烯占塑料总用量的 50% 以上，它们在自然环境中抗分解。在这项研究中，分离并鉴定为新菌株的赖氨酸杆菌属( Lysinibacillus sp.) 用于分解聚乙烯和聚丙烯。在没有任何物理化学预处理的微生物培养基中，赖氨酸杆菌属。在 26 天内，聚丙烯和聚乙烯的重量分别减少了约 4% 和 9%。在聚乙烯和聚丙烯的生物降解过程中，通过扫描电子显微镜 (SEM) 成像观察到粗糙表面增加。

此外，通过GC-MS 分析观察到聚乙烯和聚丙烯分解产生的各种含有CH ₂基团的氧化产物。结果表明，微生物可用于在没有物理化学过程的情况下降解聚乙烯和聚丙烯。这可以成为开发修复被塑料污染的土壤的方法的起点。