Vol. 8, No 18, p. 181-194 - 30 abr. 2021
Biotechnology for the mitigation of plastic wastefrom the oceans
Edson Barbosa Souza , Angela Machado Rocha e Marcelo Santana Silva
Abstract
In contemporary times, the term "plastic" represents a family of polymers that are synthetically developed and have the property of being deformed without breaking. Since the beginning of its manufacturing at industrial levels, the amount of the world's plastic production has already risen over 20,000%. Most of the produced plastic ends up having the sea as the end destination and it is known that there are toxic compounds associated with its decomposition that can cause serious problems to the ecosystem and to marine fauna. Biotechnology, as an area of study that integrates several areas of science, is committing to develop methods that may be useful in reversing the impacts that improper disposal of plastic can cause in the environment. The development of biodegradable materials and faster degradation tests with selected microorganisms have been the most effective biotechnological techniques, although they do not yet have a major impact on existing pollution mitigation. This paper will discuss the current accumulation of plastic in the oceans, as well as some of the biotechnological alternatives adopted to reverse the amount of plastic material discarded annually which ends up in the sea.
Keywords
Biotechnology; Pollution; Plastic waste; Mitigation; Oceans.
Resumo
Biotecnologia para a mitigação de resíduos plásticos dos oceanos.
Nos tempos contemporâneos, o termo "plástico" representa uma família
de polímeros que são sinteticamente desenvolvidos e têm a propriedade de serem
deformados sem quebrar. Desde o início de sua fabricação em níveis
industriais, os números da produção de plásticos pelo mundo já
subiram mais de 20.000%. Boa parte dos plásticos produzidos acabam tendo o mar como destino
final e sabe-se que existem compostos tóxicos associados à sua
decomposição que podem causar sérios problemas ao ecossistema e seus
indivíduos. A biotecnologia, como ciência que integra diversas áreas das
ciências, tem se proposto a desenvolver métodos que possam ser úteis na
reversão dos impactos que o descarte indevido de plástico pode causar no meio ambiente.
Desenvolvimento de materiais biodegradáveis e testes de degradação mais
rápidos com auxílio de microrganismos selecionados têm sido as técnicas
biotecnológicas mais eficazes, apesar de ainda não apresentarem grande impacto na
mitigação da poluição já existente. Esse trabalho
propõe-se a discutir o atual acúmulo de plástico nos oceanos, bem como
algumas das alternativas biotecnológicas adotadas para reverter a quantidade de materiais
plásticos anualmente descartada nos mares.
Palavras-chave
Biotecnologia; Poluição; Resíduos plásticos; Mitigação;
Oceanos.
DOI
10.21438/rbgas(2021)081811
Full text
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