Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets

Abstract The application of phytases for animal feed in developing countries is limited due to the high cost of these enzymes, determined by the importation fees and the expensive substrates used for their production. In this work, we have used agroindustrial byproducts for the production of extract...

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Autores principales: Elizabeth Bárbara Epalanga Pires, Anderson Junior de Freitas, Fernanda França e Souza, Rafael Locatelli Salgado, Valéria Monteze Guimarães, Francisco Alves Pereira, Monique Renon Eller
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Lenguaje:EN
Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/30165993c9d34de98ae1ace594a6ae5b
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spelling oai:doaj.org-article:30165993c9d34de98ae1ace594a6ae5b2021-12-02T15:09:24ZProduction of Fungal Phytases from Agroindustrial Byproducts for Pig Diets10.1038/s41598-019-45720-z2045-2322https://doaj.org/article/30165993c9d34de98ae1ace594a6ae5b2019-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-45720-zhttps://doaj.org/toc/2045-2322Abstract The application of phytases for animal feed in developing countries is limited due to the high cost of these enzymes, determined by the importation fees and the expensive substrates used for their production. In this work, we have used agroindustrial byproducts for the production of extracts containing phytases, which were accessed for their stability focusing on the conditions found in the gastrointestinal tract of pigs. The fungus Acremonim zeae presented higher phytase production in medium containing cornmeal, while the yeast Kluyveromyces marxianus produced 10-fold more phytase when cultivated on rice bran. Process optimization increased the difference in productivity to more than 300 fold. The phytase from A. zeae was thermostable, with higher activity at neutral pH and 50 °C, but was inhibited at pH 2.5 and by various ions. The phytase activity in the K. marxianus extract was stable at a wide range of conditions, which indicates the presence of at least two enzymes. As far as we know, this manuscript describes for the first time the phytase production and the characteristics of the extracts produced by both these microbial species. These enzymes could be produced at low cost and have potential to replace enzymes currently imported for this purpose.Elizabeth Bárbara Epalanga PiresAnderson Junior de FreitasFernanda França e SouzaRafael Locatelli SalgadoValéria Monteze GuimarãesFrancisco Alves PereiraMonique Renon EllerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Elizabeth Bárbara Epalanga Pires
Anderson Junior de Freitas
Fernanda França e Souza
Rafael Locatelli Salgado
Valéria Monteze Guimarães
Francisco Alves Pereira
Monique Renon Eller
Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
description Abstract The application of phytases for animal feed in developing countries is limited due to the high cost of these enzymes, determined by the importation fees and the expensive substrates used for their production. In this work, we have used agroindustrial byproducts for the production of extracts containing phytases, which were accessed for their stability focusing on the conditions found in the gastrointestinal tract of pigs. The fungus Acremonim zeae presented higher phytase production in medium containing cornmeal, while the yeast Kluyveromyces marxianus produced 10-fold more phytase when cultivated on rice bran. Process optimization increased the difference in productivity to more than 300 fold. The phytase from A. zeae was thermostable, with higher activity at neutral pH and 50 °C, but was inhibited at pH 2.5 and by various ions. The phytase activity in the K. marxianus extract was stable at a wide range of conditions, which indicates the presence of at least two enzymes. As far as we know, this manuscript describes for the first time the phytase production and the characteristics of the extracts produced by both these microbial species. These enzymes could be produced at low cost and have potential to replace enzymes currently imported for this purpose.
format article
author Elizabeth Bárbara Epalanga Pires
Anderson Junior de Freitas
Fernanda França e Souza
Rafael Locatelli Salgado
Valéria Monteze Guimarães
Francisco Alves Pereira
Monique Renon Eller
author_facet Elizabeth Bárbara Epalanga Pires
Anderson Junior de Freitas
Fernanda França e Souza
Rafael Locatelli Salgado
Valéria Monteze Guimarães
Francisco Alves Pereira
Monique Renon Eller
author_sort Elizabeth Bárbara Epalanga Pires
title Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
title_short Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
title_full Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
title_fullStr Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
title_full_unstemmed Production of Fungal Phytases from Agroindustrial Byproducts for Pig Diets
title_sort production of fungal phytases from agroindustrial byproducts for pig diets
publisher Nature Portfolio
publishDate 2019
url https://doaj.org/article/30165993c9d34de98ae1ace594a6ae5b
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