Affect on biosynthesis of laccase from Pleurotus sp. by some metal ions

Authors

  • Nguy Thi Mai Thao Biology Faculty, University of Science, VNU, Ho Chi Minh city
  • Tran Van Khue Biology Faculty, University of Science, VNU, Ho Chi Minh city
  • Luong Bao Uyen Biology Faculty, University of Science, VNU, Ho Chi Minh city

DOI:

https://doi.org/10.15625/0866-7160/v36n1se.4376

Keywords:

Pleurotus, heavy metal, laccase, multicopper oxidase.

Abstract

The biosynthesis of laccase from Pleurotus sp. can be effected by adding phenolic compounds or metal ions. In this study, laccase activity increased 105% when adding 0.5 mM CuSO4 into culture media. Addition CuSO4 in different time led to the highest activity of laccase achieved in the different days of cultivation. The highest laccase activity achieved 1,333 U/ml và 1,407 U/ml after 7 days cultivation if copper was added on the third and fouth day, however, when Cu2+ ion was added on the fifth day, the highest laccase activity attained 1,332 U/ml after 14 days. The highest laccase activity only reached 1,000 U/ml after 10 days cultivation in the samples, which CuSO4 was added on day 6, 7. In contrast, other heavy metals such as: Co2+, Cd2+, Hg2+, Mn2+ inhibit the growth and biosynthesis of laccase of this mushroom.

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Published

06-08-2014

How to Cite

Mai Thao, N. T., Khue, T. V., & Uyen, L. B. (2014). Affect on biosynthesis of laccase from Pleurotus sp. by some metal ions. Academia Journal of Biology, 36(1se), 107–111. https://doi.org/10.15625/0866-7160/v36n1se.4376

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Articles