Green biocatalysis: Box-Behnken-optimized cellulase from thermophilic Streptomyces griseorubens NBR14 for waste management and dye removal.
Gomaa AEF, Qin S, El-Sayed MH, Mawad AMM
Bioremediation
PubMedWheat straw piling up after harvest could be broken down by enzymes like this one instead of being burned, cutting the smoke that drifts into your neighborhood and turning farm waste into something useful.
Researchers found a bacteria living in hot environments that makes a powerful enzyme capable of digesting the tough fibers in wheat straw. They fine-tuned the conditions to get the most enzyme possible, then showed it could also break down a harmful purple dye used in labs and industry. To make it reusable, they trapped the enzyme inside tiny gel beads, which held onto about 75% of its activity across multiple uses.
Key Findings
Optimizing fermentation conditions boosted enzyme production 2.48-fold, with peak activity at 50°C and pH 7.0
The enzyme removed 83.6% of crystal violet dye (50 mg/L) within 24 hours without stirring
Immobilization in calcium alginate beads achieved a 75.07% yield, enabling potential reuse in industrial processes
chevron_right Technical Summary
Scientists optimized a heat-tolerant enzyme from soil bacteria that breaks down wheat straw waste and can also remove toxic dyes from water — offering a cleaner, reusable tool for industrial waste treatment.
Abstract Preview
Thermotolerant actinobacteria are important because they thrive in harsh environments and efficiently degrade agricultural residues, producing valuable enzymes for various applications. In this stu...
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