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Mohidem Nur Atikah Bin Mat Hanapi Mohamad Mardawani Hamzah Fazlena Rashid Muhammad Usman 《Journal of Sol-Gel Science and Technology》2021,98(3):462-469
Journal of Sol-Gel Science and Technology - Oxidoreductases are widely recognized for their capability to degrade phenolic pollutants and versatile. However, the lack of enzyme stability makes this... 相似文献
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This study investigated the effects of different additives and precursors on the catalytic activity of laccase entrapped in
sol–gel silica. It was found that the laccase catalytic activity and stability of sol–gel laccase could be enhanced if the
entrapment was performed in the presence of additives such as PVA, PEG and APTS. The use of TEOS as a precursor showed slightly
higher laccase catalytic activity compared to TMOS. The PVA as an additive showed a better catalytic activity enhancement
compared to the PEG and APTMS with the optimum PVA concentration of 0.03 mg/mL. The optimal temperatures of sol–gel laccase
without and with additives were found to be at 40 and 27°C, respectively. After 70 days of storage at 27°C, the catalytic
activity of the immobilized sol–gel laccase with additives maintained its catalytic activity compared to only 30% of its original
catalytic activity for the sol–gel laccase without additives. 相似文献
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