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Characterisation of a thermostable and proteolysis resistant phytase from Penicillium polonicum MF82 associated with the marine sponge Phorbas sp.
Biocatalysis and Biotransformation ( IF 1.8 ) Pub Date : 2020-06-26 , DOI: 10.1080/10242422.2020.1785434
Saban Orcun Kalkan 1 , Elif Bozcal 1, 2 , Elif Esin Hames Tuna 3 , Atac Uzel 1
Affiliation  

Abstract Phytases are widely used in human and animal nutrition, aquaculture, soil amendment, and in the production of lower myo-inositol phosphates for clinical purposes. Some of these applications, especially feed industry require robust enzymes. Since the marine environments are less studied compared to terrestrial environments, we evaluated the extracellular phytase activity of 110 marine derived filamentous fungal (MDFF) strains previously isolated from sponge and sediment samples of the Turkey. MDFF strains were qualitatively screened for their extracellular phytase activities and P. polonicum MF82 phytase was further characterized following partial purification. Optimum pH and temperature were determined as 5.5 and 60 °C respectively. A significant relative phytase activity was observed in the presence of urea and acetone. However, there was no phytase activity followed by the treatment with Triton X-100 and Tween 80. Characterization studies revealed that P. polonicum MF82 phytase has superior properties for industrial use including wide pH and temperature range for activity, high optimum activity temperature, high thermal and pH stability, resistance to many enzyme inhibitors including various heavy metals, denaturants, detergents, proteases and organic solvents. Phytase extracellularly produced by P. polonicum MF82 strain presents a good candidate for commercial applications. This study demonstrates that the MDFF strains are prolific sources for phytase and presents the first report about the production and characterization of the phytase from a marine-derived P. polonicum strain.

中文翻译:

来自与海洋海绵 Phorbas sp. 相关的 Penicillium polonicum MF82 的热稳定和抗蛋白水解植酸酶的表征。

摘要 植酸酶广泛用于人类和动物营养、水产养殖、土壤改良以及用于临床目的的低肌醇磷酸酯的生产。其中一些应用,尤其是饲料工业,需要稳健的酶。由于与陆地环境相比,对海洋环境的研究较少,我们评估了先前从土耳其海绵和沉积物样品中分离的 110 种海洋衍生丝状真菌 (MDFF) 菌株的细胞外植酸酶活性。对 MDFF 菌株的细胞外植酸酶活性进行定性筛选,并在部分纯化后进一步表征 P. polonicum MF82 植酸酶。最佳 pH 值和温度分别确定为 5.5 和 60 °C。在尿素和丙酮存在下观察到显着的相对植酸酶活性。然而,用 Triton X-100 和 Tween 80 处理后没有植酸酶活性。 表征研究表明,P. polonicum MF82 植酸酶具有优异的工业用途特性,包括活性的宽 pH 值和温度范围、高最适活性温度、高热和pH 稳定性,对包括各种重金属、变性剂、去污剂、蛋白酶和有机溶剂在内的多种酶抑制剂的耐受性。由 P. polonicum MF82 菌株细胞外产生的植酸酶是商业应用的良好候选者。该研究表明 MDFF 菌株是植酸酶的多产来源,并提供了关于来自海洋衍生的 P. polonicum 菌株的植酸酶的生产和表征的第一份报告。表征研究表明,P. polonicum MF82 植酸酶具有优异的工业用途特性,包括宽 pH 值和活性温度范围、高最适活性温度、高热和 pH 稳定性、对多种酶抑制剂(包括各种重金属、变性剂、去污剂、蛋白酶)的耐受性和有机溶剂。由 P. polonicum MF82 菌株细胞外产生的植酸酶是商业应用的良好候选者。该研究表明 MDFF 菌株是植酸酶的多产来源,并提供了关于来自海洋衍生的 P. polonicum 菌株的植酸酶的生产和表征的第一份报告。表征研究表明,P. polonicum MF82 植酸酶具有优异的工业用途特性,包括宽 pH 值和活性温度范围、高最适活性温度、高热和 pH 稳定性、对多种酶抑制剂(包括各种重金属、变性剂、去污剂、蛋白酶)的耐受性和有机溶剂。由 P. polonicum MF82 菌株细胞外产生的植酸酶是商业应用的良好候选者。该研究表明 MDFF 菌株是植酸酶的多产来源,并提供了关于来自海洋衍生的 P. polonicum 菌株的植酸酶的生产和表征的第一份报告。高的最适活性温度、高的热稳定性和 pH 稳定性、对多种酶抑制剂的耐受性,包括各种重金属、变性剂、去污剂、蛋白酶和有机溶剂。由 P. polonicum MF82 菌株细胞外产生的植酸酶是商业应用的良好候选者。该研究表明 MDFF 菌株是植酸酶的多产来源,并提供了关于来自海洋衍生的 P. polonicum 菌株的植酸酶的生产和表征的第一份报告。高的最适活性温度、高的热稳定性和 pH 稳定性、对多种酶抑制剂的耐受性,包括各种重金属、变性剂、去污剂、蛋白酶和有机溶剂。由 P. polonicum MF82 菌株细胞外产生的植酸酶是商业应用的良好候选者。该研究表明 MDFF 菌株是植酸酶的多产来源,并提供了关于来自海洋衍生的 P. polonicum 菌株的植酸酶的生产和表征的第一份报告。
更新日期:2020-06-26
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