Team:Brasil-USP/capa
Degradation of
Natural Rubber
Team Brasil-USP
Brasil-USP team's 2015 project is to develop an innovative and sustainable solution for a significant environmental problem:
accumulation of waste tires.
Current recycling techniques demand high energy consumption, and are completely overwhelmed by the annual amount of rubber waste. In addition, natural rubber degradation may take up to 1000 years.
We aim to accelerate this process by genetically engineering microorganisms to express and secrete two crucial enzymes for the degradation of natural rubber: RoxA (Rubber oxygenase) and Lcp (Latex clearing protein).
Tires and several other products, however, are composed by vulcanized rubber, which ensures its durability and increase its elasticity and strength. In this regard, for vulcanized rubber degradation, the project may include a pre-treatment, which uses Acidithiobacillus ferrooxidans, bacteria that naturally devulcanizes rubber. Both of these processes will be scaled up in bioreactors.
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We are students and post docs from University of São Paulo, Brazil
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