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Biodegredation of dye using free laccase and sol-gel laccase

Mansor, Azmi Fadziyana and Mat, Hanapi and Ahmad Shamsuri, Nur Afiqah and Mohidem, Nur Atikah (2011) Biodegredation of dye using free laccase and sol-gel laccase. In: Regional Annual Fundamental Science Symposium (RAFSS 2011).

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Official URL: http://dx.doi.org/10.11113/jt.v59.1266


Malachite green oxalate dyes are of synthetic origin and their environmental existence is not well understood. They are resistant to direct aerobic bacterial degradation and form potentially carcinogenic aromatic amines. This study shows that applying the oxidative processes of enzymatic treatment with free laccase and sol-gel laccase could lead to dye degradation. The degradation of dye malachite green oxalate using free laccase and sol-gel laccase, respectively were 37% and 13% at 1 hour reaction. The optimum pH for the free laccase and sol-gel laccase respectively were at pH 5 and pH 6. The optimal temperature for degradation of dye by sol-gel laccase was at 40°C. These results showed that free laccase and sol-gel laccase have good performance in the degradation of malachite green oxalate dyes.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Free laccase; entrapment; sol-gel laccase; biodegradation; malachite green oxalate
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:45629
Deposited By: Haliza Zainal
Deposited On:10 Jun 2015 03:01
Last Modified:19 Jun 2017 03:05

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