Green Chemistry: The Evolution of a Concept

Sousa-Aguiar, Eduardo Falabella; Almeida, João Monnerat Araujo Ribeiro de; Romano, Pedro Nothaft; Fernandes, Rodrigo Pimentel; Carvalho, Yuri Mariano

doi:10.5935/0100-4042.20140212

Cited by 4 publications

(2 citation statements)

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“…Desse desequilíbrio sem precedentes na história da Terra, surgiu a Química Verde, que preconiza a prevenção da geração de resíduos e não simplesmente o manejo dos resíduos já gerados e o uso eficiente dos recursos atualmente disponíveis. [1][2][3][4][5][6] Para atender às demandas atuais da sociedade e das legislações em vigor, o setor industrial tem passado por uma mudança de paradigma na manufatura de seus produtos e está cada vez mais atento às questões relacionadas à sustentabilidade ambiental de seus processos químicos vigentes e daqueles que ainda estão por vir.…”

Section: Introductionunclassified

Evolução Dirigida De Enzimas: Pequenas Modificações, Melhores Biocatalisadores

Teixeira

Milagre

2020

Quim. Nova

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Recebido em 05/11/2019; aceito em 19/03/2020; publicado na web em 24/04/2020 DIRECTED EVOLUTION OF ENZYMES: SMALL CHANGES, BETTER BIOCATALYSTS. Biocatalysis is now a mature field, both in the laboratory and industrial scale. This approach counts on enzyme high selectivity, biodegradability, elegant control over the outcome of reaction conditions and as a possible solution to address some challenges in Green Chemistry faced by synthetic organic chemists. However, many wild-type ready-to-use enzymes were not designed to accommodate the organic substrates needed by today's demands. Or they do not fit a predefined optimum process condition or even, useful reactions are not accessible because there is no enzyme counterpart for metallo-and organocatalysts. This review will give a brief introduction on the protein engineering tools (directed evolution, rational design, and semi-rational design) and will focus on directed evolution of enzymes, their impact in chemistry with examples from production of commodity chemicals to pharmaceutical intermediates and its potential as a tool to achieve greener chemistry criteria will be discussed.

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Section: Introductionunclassified

Evolução Dirigida De Enzimas: Pequenas Modificações, Melhores Biocatalisadores

Teixeira

Milagre

2020

Quim. Nova

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“…The uncertainty regarding the future supply of oil, along with the increasing energy demand per capita and the necessity of reducing the environmental impact of hazardous process effluents and products have been the driving force for the development of an innovative industry based on renewables. In this rather stringent scenario, the efficient deployment of biomass as well as the conversion thereof into high value products has become one of most important challenges for both the academia and industry (Sousa-Aguiar et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

The Role of Sulfonated Activated Carbons as Catalysts for the Hydrolysis of Cellobiose

Bermejo

Fraga

Sousa-Aguiar

2019

Braz. J. Chem. Eng.

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In this work the production of glucose via hydrolysis of cellobiose using sulfonated active carbons as catalysts was studied. Commercial carbons presenting different types of porous system (micropores and mesopores) have been treated with sulfuric acid at different temperatures, being characterized afterwards. Such carbons have been tested as catalysts in the reaction of cellobiose hydrolysis. The results indicated that the type and density of sulfonic sites are not the only parameters responsible for the activity of the catalysts. Indeed, the porosity of the catalysts also plays an important role in the determination of the catalyst activity.

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