Estudo das atividades de peroxidades e polifenoloxidase de guariroba (Syagrus oleracea Becc) sob a ação de diferentes inibidores - DOI: 10.4025/actascibiolsci.v25i1.2108

Cristine Elizabeth Alvarenga Carneiro; Henriqueta Merçon Vieira Rolim; Katia Flavia Fernandes

doi:10.4025/actascibiolsci.v25i1.2108

**Study of guariroba (Syagrus oleracea. Becc) peroxidase and poliphenoloxidase activity under different inhibitors action** - DOI: 10.4025/actascibiolsci.v25i1.2108

Authors

Cristine Elizabeth Alvarenga Carneiro UFG Author
Henriqueta Merçon Vieira Rolim UFG Author
Katia Flavia Fernandes UFG Author

DOI:

https://doi.org/10.4025/actascibiolsci.v25i1.2108

Keywords:

Peroxidase, polifenoloxidase, guariroba, ácido láctico, escurecimento, processamento

Abstract

In this work the guariroba (Syagrus oleracea, Becc) was submitted to treatment with solutions containing peroxidase (POX) and poliphenoloxidase (PPO) inhibitors. Guariroba slices were immersed in 0.5, 0.8 and 1.0 % (p/v) citric acid, lactic acid and sodium bisulfite solutions, for 10, 15 and 20 minutes. The phenol contents and the enzymatic activities of POX and PPO were measured before and after treatment with the inhibitor solutions, as well as solution pH. The best results for both enzymatic inhibition and phenol content were obtained when the guariroba slices were treated with 1.0 % lactic acid solution for 10 minutes

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Author Biography

Katia Flavia Fernandes, UFG

Graduação em Farmácia pela Universidade Federal do Ceará (1987), mestrado em Bioquímica pela Universidade Federal do Ceará (1991) e doutorado em Química pela Universidade Estadual de Campinas (2000). Atualmente é professor da Universidade Federal de Goiás, onde coordena o Laboratório de Química de proteínas. Tem experiência na área de Bioquímica, com ênfase em Enzimas, atuando principalmente nos seguintes temas: imobilização de enzimas e proteínas; escurecimento enzimático e processamento de alimentos; plantas de cerrado; bioreatores; e síntese de novos materiais, especialmente derivados de polianilina. Atua também como Avaliador da Qualidade de Ensino de Cursos de Graduação em Farmácia e Avaliador Institucional pelo INEP/MEC Currículo Lattes

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Published

2008-04-18

Issue

Vol. 25 No. 1 (2003)

Section

Biology Sciences

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How to Cite

Study of guariroba (Syagrus oleracea. Becc) peroxidase and poliphenoloxidase activity under different inhibitors action - DOI: 10.4025/actascibiolsci.v25i1.2108. (2008). Acta Scientiarum. Biological Sciences, 25(1), 189-193. https://doi.org/10.4025/actascibiolsci.v25i1.2108