Eco-Friendly Degradation of Natural Rubber Powder Waste Using Some Microorganisms with Focus on Antioxidant and Antibacterial Activities of Biodegraded Rubber

Natural rubber (NR) powder wastes contribute to the pollution of environment and pose a risk human health. Therefore, Escherichia coli AY1 Aspergillus oryzae were used degrade NR in present investigation. The biodegradation was further confirmed using E. A. oryzae’s ability create biofilm, which grew on surface NR. Additionally, biodegraded examined by scanning electron microscopy (SEM), attenuated total reflection–Fourier transform infrared (ATR–FTIR) spectroscopy, gas chromatography–mass spectrometry (GC–MS). highest weight loss (69%) detected (p < 0.05) after 210 d incubation with mixed microbial culture (E. + oryzae). In SEM, control treatment appeared uniform normal, whereas displayed an irregular shape, apparent particle deformation erosion. After oryzae, size range untreated dropped from (5.367–9.623 µm) (2.55–6.549 µm). treating new bands ATR–FTIR technique; others shifted down 3910–450 cm−1, suggesting existence active groups belonging alcohol, secondary amine, aromatic conjugated anhydride, aldehyde, alkene, halo compounds. On other hand, GC–MS profile reports significant decline amount hydrocarbons while simultaneously reporting increase proportion oxygenated, sulfurous, nitrogenous These are attributed antioxidant antibacterial properties mixture rose 9-fold compared Through use this research, we will be able waste into valuable product that possesses both properties.