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Dextranase Production Using Marine Microbacterium sp. XD05 and Its Application

Dextranase, also known as glucanase, is a hydrolase enzyme that cleaves α-1,6 glycosidic bonds. In this study, a dextranase-producing strain was isolated from water samples of the Qingdao Sea and identified as Microbacterium sp. This strain was further evaluated for growth conditions, enzyme-produci...

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Published in:Marine drugs 2023-10, Vol.21 (10), p.528
Main Authors: Boualis, Hind, Wu, Xudong, Wang, Boyan, Li, Qiang, Liu, Mingwang, Zhang, Lei, Lyu, Mingsheng, Wang, Shujun
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description Dextranase, also known as glucanase, is a hydrolase enzyme that cleaves α-1,6 glycosidic bonds. In this study, a dextranase-producing strain was isolated from water samples of the Qingdao Sea and identified as Microbacterium sp. This strain was further evaluated for growth conditions, enzyme-producing conditions, enzymatic properties, and hydrolysates. Yeast extract and sodium chloride were found to be the most suitable carbon and nitrogen sources for strain growth, while sucrose and ammonium sodium were found to be suitable carbon and nitrogen sources for fermentation. The optimal pH was 7.5, with a culture temperature of 40 °C and a culture time of 48 h. Dextranase produced by strain XD05 showed good thermal stability at 40 °C by retaining more than 70% relative enzyme activity. The pH stability of the enzyme was better under a weak alkaline condition (pH 6.0–8.0). The addition of NH4+ increased dextranase activity, while Co2+ and Mn2+ had slight inhibitory effects on dextranase activity. In addition, high-performance liquid chromatography showed that dextran is mainly hydrolyzed to maltoheptanose, maltohexanose, maltopentose, and maltootriose. Moreover, it can form corn porous starch. Dextranase can be used in various fields, such as food, medicine, chemical industry, cosmetics, and agriculture.
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The optimal pH was 7.5, with a culture temperature of 40 °C and a culture time of 48 h. Dextranase produced by strain XD05 showed good thermal stability at 40 °C by retaining more than 70% relative enzyme activity. The pH stability of the enzyme was better under a weak alkaline condition (pH 6.0–8.0). The addition of NH4+ increased dextranase activity, while Co2+ and Mn2+ had slight inhibitory effects on dextranase activity. In addition, high-performance liquid chromatography showed that dextran is mainly hydrolyzed to maltoheptanose, maltohexanose, maltopentose, and maltootriose. Moreover, it can form corn porous starch. Dextranase can be used in various fields, such as food, medicine, chemical industry, cosmetics, and agriculture.</description><identifier>ISSN: 1660-3397</identifier><identifier>EISSN: 1660-3397</identifier><identifier>DOI: 10.3390/md21100528</identifier><identifier>PMID: 37888463</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Ammonium ; Ammonium compounds ; Bacteria ; Carbon ; Carbon dioxide ; Carbon sources ; Chemical industry ; Chromatography ; Cobalt ; corn porous starch ; Cosmetics ; Dextran ; Dextranase ; Dextrans ; Enzymatic activity ; enzymatic properties ; Enzyme activity ; Enzymes ; Fermentation ; Food industry ; Glucose ; Growth conditions ; High performance liquid chromatography ; HPLC ; Hydrolysates ; Liquid chromatography ; Microbacterium ; Microbacterium sp ; Morphology ; Nitrogen ; Nitrogen sources ; oligo-maltosaccharines ; pH effects ; Phylogenetics ; Sodium ; Sodium chloride ; Starch ; Sucrose ; Temperature ; Thermal stability ; Water analysis ; Water sampling ; Yeast ; Yeasts</subject><ispartof>Marine drugs, 2023-10, Vol.21 (10), p.528</ispartof><rights>2023 by the authors. 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Dextranase produced by strain XD05 showed good thermal stability at 40 °C by retaining more than 70% relative enzyme activity. The pH stability of the enzyme was better under a weak alkaline condition (pH 6.0–8.0). The addition of NH4+ increased dextranase activity, while Co2+ and Mn2+ had slight inhibitory effects on dextranase activity. In addition, high-performance liquid chromatography showed that dextran is mainly hydrolyzed to maltoheptanose, maltohexanose, maltopentose, and maltootriose. Moreover, it can form corn porous starch. Dextranase can be used in various fields, such as food, medicine, chemical industry, cosmetics, and agriculture.</abstract><cop>Basel</cop><pub>MDPI AG</pub><pmid>37888463</pmid><doi>10.3390/md21100528</doi><orcidid>https://orcid.org/0000-0003-4409-3766</orcidid><orcidid>https://orcid.org/0000-0001-6939-7008</orcidid><oa>free_for_read</oa></addata></record>
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subjects Ammonium
Ammonium compounds
Bacteria
Carbon
Carbon dioxide
Carbon sources
Chemical industry
Chromatography
Cobalt
corn porous starch
Cosmetics
Dextran
Dextranase
Dextrans
Enzymatic activity
enzymatic properties
Enzyme activity
Enzymes
Fermentation
Food industry
Glucose
Growth conditions
High performance liquid chromatography
HPLC
Hydrolysates
Liquid chromatography
Microbacterium
Microbacterium sp
Morphology
Nitrogen
Nitrogen sources
oligo-maltosaccharines
pH effects
Phylogenetics
Sodium
Sodium chloride
Starch
Sucrose
Temperature
Thermal stability
Water analysis
Water sampling
Yeast
Yeasts
title Dextranase Production Using Marine Microbacterium sp. XD05 and Its Application
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