A cold-adapted and robust alkaline lipase from Marinobacter nanhaiticus boosts laundry detergent performance

Cold-adapted, alkali-stable lipases with surfactant tolerance are highly sought after in the detergent industry. In this study, we recombinantly expressed and characterized a novel lipase from Marinobacter nanhaiticus (MNL). The purified MNL exhibited high stability within a temperature range of 10–30°C and pH values of 8–10, demonstrating optimal activity at 20°C and pH 8. MNL has a preference for substrates with medium chains with the best activity being 3768.6 U/mg using p -nitrophenyl decanoate as a substrate. Remarkably, MNL showed enhanced enzymatic activity in the presence of ionic surfactants and displayed notable resilience when exposed to proteases. Washing performance analysis further revealed MNL's high proficiency in removing oil-based stains from fabrics. Collectively, these results suggest that MNL holds significant promise as a valuable component in laundry detergent formulations.