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Biotechnological applications of odorant binding proteins

Authors: Gonçalves, Ana Carolina Lemos;

Biotechnological applications of odorant binding proteins

Abstract

As proteínas de ligação a odores (OBPs) são pequenas proteínas da família das lipocalinas com a capacidade de se ligarem a moléculas odoríferas. As OBPs podem ser utilizadas em inúmeras áreas devido à boa estabilidade térmica, alta resistência a solventes orgânicos e à digestão proteolítica sua capacidade de ligar diferentes classes de odores, incluindo a deteção de substâncias perigosas. Resultado da atividade diária e do exercício físico, o ser humano transpira e o que pode despoletar o desenvolvimento de odores desagradáveis. Neste trabalho, e com o intuito de diminuir o odor dos têxteis foram desenhadas 3 sequências de OBPs de porco, com capacidade de se ligar a tecidos de algodão e poliéster. Das 3 proteínas, designadas de OBP 1, OBP 2 e OBP 3 (por motivos de confidencialidade), apenas a OBP 1 e a OBP 2 expressaram, tendo a OBP 3 sido excluída do presente estudo. A caracterização físico-química das proteínas produzidas e da proteína wild-type (wt) foi realizada através das técnicas de MALDI-TOF, FTIR e Dicroísmo circular. Concluiu-se que a OBP1 e a OBP 2 apresentavam uma estrutura secundaria diferente da OBP wild-type (wt) e que, quando aplicada uma temperatura superior a 60 °C, seguida de uma incubação a 4 °C, tanto a OBP 1 como a OBP 2 recuperavam a sua estrutura, fenómeno que não ocorreu com a OBP wt. Foi estudada a ligação das proteínas a uma molécula modelo (1-AMA) e a fragrâncias (β Citronellol, (-)-Menthol, Eugenol e Citronellil Valerate) e concluiu-se que a fragrância com melhor coeficiente de ligação (

Country
Portugal
Related Organizations
Keywords

Libertação controlada de fragrâncias, Redução de odores, Proteínas de ligação a odores, Têxteis inteligentes, Odor reduction, Smart textiles, Odor binding proteins, Fragrance release

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green