In the present study, two strains of Pseudomonas aeruginosa, WZH-4 and WGH-6, were isolated based on their ability to survive with polypropylene (PP) as the sole source of carbon. Then, the degradation of PP particles by the two strains was analyzed using weight loss, Scanning Electron Microscopy, contact angle, Fourier-transform infrared spectroscopy, Thermal Gravimetric Analysis and Differential Scanning Calorimetry. After 40 days of cultivation, these strains led to a weight loss of 9.35% ± 2.22 and 17.2% ± 1.56, respectively, while their biomass both increased. Moreover, PP surface exhibited pits and oxygenated functional group. And the hydrophobicity and the thermal stability of PP were significantly reduced.

Graphical Abstract

中文翻译：

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铜绿假单胞菌 LICME WZH-4 和 WGH-6 对聚丙烯的降解

在本研究中，两种铜绿假单胞菌菌株WZH-4 和 WGH-6 基于它们在聚丙烯 (PP) 作为唯一碳源的情况下存活的能力而被分离出来。然后，使用失重、扫描电子显微镜、接触角、傅里叶变换红外光谱、热重分析和差示扫描量热法分析这两种菌株对 PP 颗粒的降解情况。培养 40 天后，这些菌株分别导致体重减轻 9.35% ± 2.22 和 17.2% ± 1.56，而它们的生物量均有所增加。此外，PP表面表现出凹坑和含氧官能团。PP的疏水性和热稳定性显着降低。

图形概要