Ultrasonic Pre-Treatment Enhances Lipase Activity
Author Information
Author(s): Shah Shweta, Gupta Munishwar Nath
Primary Institution: Indian Institute of Technology Delhi
Hypothesis
Does ultrasonic pre-treatment enhance the catalytic activity of lipases in aqueous and non-aqueous media?
Conclusion
Ultrasonic pre-treatment significantly enhances the biocatalytic activity of lipases in both aqueous and organic media.
Supporting Evidence
- Ultrasonic pre-irradiation increased the conversion rate of ethyl butyrate to butyl butyrate from 66% to 82%.
- Pre-irradiated lipase achieved a 79% conversion of Jatropha oil to biodiesel, compared to 34% with untreated lipase.
- CD spectra indicated that ultrasonic treatment altered the microenvironments of aromatic amino acids in the lipase.
Takeaway
Using sound waves can make certain enzymes work better, helping to turn oils into biodiesel more efficiently.
Methodology
Lipases were treated with ultrasound in both aqueous and organic solvents, and their activities were measured through esterase and transesterification assays.
Limitations
The study primarily focuses on specific lipases and may not generalize to all enzymes or conditions.
Digital Object Identifier (DOI)
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