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Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2

The study reported on the isolation of a metalloprotease named EH2 from Pseudoalteromonas sp. H2. EH2 maintained more than 80% activity over a wide pH range of 5–10, and the stability was also nearly independent of pH. Over 65% activity was detected at a wide temperature range of 20–70 °C. The high...

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Autores principales: Liu, Dan, Huang, Jiafeng, Wu, Cuiling, Liu, Congling, Huang, Ran, Wang, Weng, Yin, Tingting, Yan, Xiaotao, He, Hailun, Chen, Leilei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766936/
https://www.ncbi.nlm.nih.gov/pubmed/31527535
http://dx.doi.org/10.3390/molecules24183373
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author Liu, Dan
Huang, Jiafeng
Wu, Cuiling
Liu, Congling
Huang, Ran
Wang, Weng
Yin, Tingting
Yan, Xiaotao
He, Hailun
Chen, Leilei
author_facet Liu, Dan
Huang, Jiafeng
Wu, Cuiling
Liu, Congling
Huang, Ran
Wang, Weng
Yin, Tingting
Yan, Xiaotao
He, Hailun
Chen, Leilei
author_sort Liu, Dan
collection PubMed
description The study reported on the isolation of a metalloprotease named EH2 from Pseudoalteromonas sp. H2. EH2 maintained more than 80% activity over a wide pH range of 5–10, and the stability was also nearly independent of pH. Over 65% activity was detected at a wide temperature range of 20–70 °C. The high stability of the protease in the presence of different surfactants and oxidizing agents was also observed. Moreover, we also investigated the antioxidant activities of the hydrolysates generated from porcine and salmon skin collagen by EH2. The results showed that salmon skin collagen hydrolysates demonstrated higher DPPH (1,1-diphenyl-2-picrylhydrazyl) (42.88% ± 1.85) and hydroxyl radical (61.83% ± 3.05) scavenging activity than porcine skin collagen. For oxygen radical absorbance capacity, the hydrolysates from porcine skin collagen had higher efficiency (7.72 ± 0.13 μmol·TE/μmol). Even 1 nM mixed peptides could effectively reduce the levels of intracellular reactive oxygen species. The two types of substrates exerted the best antioxidant activity when hydrolyzed for 3 h. The hydrolysis time and type of substrate exerted important effects on the antioxidant properties of hydrolysates. The hydrolyzed peptides from meat collagens by proteases have good antioxidant activity, which may have implications for the potential application of marine proteases in the biocatalysis industry.
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spelling pubmed-67669362019-10-02 Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2 Liu, Dan Huang, Jiafeng Wu, Cuiling Liu, Congling Huang, Ran Wang, Weng Yin, Tingting Yan, Xiaotao He, Hailun Chen, Leilei Molecules Article The study reported on the isolation of a metalloprotease named EH2 from Pseudoalteromonas sp. H2. EH2 maintained more than 80% activity over a wide pH range of 5–10, and the stability was also nearly independent of pH. Over 65% activity was detected at a wide temperature range of 20–70 °C. The high stability of the protease in the presence of different surfactants and oxidizing agents was also observed. Moreover, we also investigated the antioxidant activities of the hydrolysates generated from porcine and salmon skin collagen by EH2. The results showed that salmon skin collagen hydrolysates demonstrated higher DPPH (1,1-diphenyl-2-picrylhydrazyl) (42.88% ± 1.85) and hydroxyl radical (61.83% ± 3.05) scavenging activity than porcine skin collagen. For oxygen radical absorbance capacity, the hydrolysates from porcine skin collagen had higher efficiency (7.72 ± 0.13 μmol·TE/μmol). Even 1 nM mixed peptides could effectively reduce the levels of intracellular reactive oxygen species. The two types of substrates exerted the best antioxidant activity when hydrolyzed for 3 h. The hydrolysis time and type of substrate exerted important effects on the antioxidant properties of hydrolysates. The hydrolyzed peptides from meat collagens by proteases have good antioxidant activity, which may have implications for the potential application of marine proteases in the biocatalysis industry. MDPI 2019-09-16 /pmc/articles/PMC6766936/ /pubmed/31527535 http://dx.doi.org/10.3390/molecules24183373 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Dan
Huang, Jiafeng
Wu, Cuiling
Liu, Congling
Huang, Ran
Wang, Weng
Yin, Tingting
Yan, Xiaotao
He, Hailun
Chen, Leilei
Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title_full Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title_fullStr Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title_full_unstemmed Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title_short Purification, Characterization, and Application for Preparation of Antioxidant Peptides of Extracellular Protease from Pseudoalteromonas sp. H2
title_sort purification, characterization, and application for preparation of antioxidant peptides of extracellular protease from pseudoalteromonas sp. h2
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766936/
https://www.ncbi.nlm.nih.gov/pubmed/31527535
http://dx.doi.org/10.3390/molecules24183373
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