2019
DOI: 10.1186/s13568-018-0725-x
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Partial purification and characterization of phytase from Aspergillus foetidus MTCC 11682

Abstract: Phytase is a phosphatase enzyme widely used as feed additive to release inorganic phosphorus from plant phytate and enhance its uptake in monogastric animals. Although engineered fungal phytases are used most, a natural enzyme gives opportunity to understand novel properties, if any. In the current study, a novel fungal strain, Aspergillus foetidus MTCC 11682 was immobilized on poly urethane cubes and used for phytase production, purification and molecular characterization. Phytase produced by this method was … Show more

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Cited by 17 publications
(16 citation statements)
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“…However, the concentration levels and rations for poultry must be close to their specified requirements. Consequently, a study on the effect of reducing dietary Ca levels and calcium, along with available phosphorus (Ca:aP) ratios in combination supplemented fungal phytases on poultry growth performance, nutrient digestibility, bone ash, and mineralization, was conducted (Delezie et al, 2015;de Souza Nardelli et al, 2018;Ajith et al, 2019).…”
Section: Poultrymentioning
confidence: 99%
“…However, the concentration levels and rations for poultry must be close to their specified requirements. Consequently, a study on the effect of reducing dietary Ca levels and calcium, along with available phosphorus (Ca:aP) ratios in combination supplemented fungal phytases on poultry growth performance, nutrient digestibility, bone ash, and mineralization, was conducted (Delezie et al, 2015;de Souza Nardelli et al, 2018;Ajith et al, 2019).…”
Section: Poultrymentioning
confidence: 99%
“…Apesar destas enzimas serem amplamente produzidas na natureza e encontradas em plantas, animais e microrganismos (SINGH, JOSHI, GUPTA, 2013;AJITH et al, 2019), análises de fitases de diferentes origens mostraram eficiência superior das enzimas microbianas em relação às demais fontes (SATO, 2015). Fitases produzidas por fungos filamentosos têm recebido atenção especial, por serem de natureza extracelular, ao contrário das fitases bacterianas e de leveduras, que são intracelulares (SINGH, SATYANARAYANA, 2011).…”
Section: Pmsfunclassified
“…Considerando o ambiente ácido do estômago (entre 2 e 4) dos animais monogástricos KANG, 2007;QVIRIST et al, 2015;AJITH et al, 2019), dificilmente haverá uma fitase que demonstre eficiência desejada nos menores valores dessa faixa de pH, uma vez que as características das fitases relatadas até o momento concluem que a maioria dessas enzimas pertencem à família das fosfatases ácidas histidinas (HAP), cuja provável eficiência catalítica máxima seja em torno de 4,0 a 5,5 (YAO et al, 2011;LEI et al, 2013, TAN et al, 2015. Além disso, é sabido que as fitases provenientes de fungos geralmente apresentam atividade catalítica máxima na faixa de pH entre 4,5 e 6,0 (SANDHYA; SRIDEVI; SUVARNALATHADEVI, 2019).…”
Section: Dicroismo Circular (Cd)unclassified
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