Enzima criada por cientistas com uso de inteligência artificial promete desintegrar bilhões de toneladas de garrafas PET

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Usando inteligência artificial (IA), cientistas e engenheiros da Universidade do Texas, EUA, desenvolveram uma enzima capaz de degradar e reciclar garrafas PET.

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Resíduos plásticos do tipo PET, que naturalmente levam séculos para se desintegrar na natureza.

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Os pesquisadores divulgaram um estudo relatando as descobertas na revista Nature.

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O projeto tem como foco a degradação do polietileno tereftalato (PET), o tipo de plástico encontrado na maioria das embalagens descartáveis.

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Os resíduos desses materiais representam 12% de todos os resíduos globais.

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Para criar uma variante da enzima PETase, já existente, os cientistas usaram um modelo de aprendizado de máquina capaz de gerar novas mutações.

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Que permite que as bactérias degradem o plástico. O modelo também pode prever quais mutações nessas enzimas atingirão o objetivo de despolimerizar o plástico.

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Os testes foram realizados em temperaturas abaixo de 50ºC e incluíram o uso de 51 embalagens plásticas pós-consumo diferentes.

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As enzimas modificadas são capazes de completar um processo cíclico que quebra os plásticos em pedaços menores (Despolimerização) e depois os une quimicamente (Repolimerização).

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Confira a matéria COMPLETA NO SITE

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