期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 10, 期 12, 页码 5217-5223出版社
MDPI
DOI: 10.3390/ijms10125217
关键词
tyrosinase; supercritical CO2; enzymatic reaction; phenol
资金
- CNPq
The use of enzymes in supercritical CO2 (SCCO2) has received extensive attention in recent years. Biocatalysts have the advantage of substrate specificity and SCCO2 offers several advantages over liquid solvents. This work deals with the utilization of SCCO2 as a medium for the enzymatic removal of phenol from aqueous solutions using tyrosinase. Since the presence of oxygen is crucial for the enzyme-catalyzed oxidation, the substantial solvating power of SCCO2 makes it a promising medium for such reactions. The conversion of phenol was higher at 10 MPa. Under near critical conditions (7 MPa, 35 degrees C), the addition of air at 5 x 10(5) Pa of pressure improved phenol removal.
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