Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry
The mining and metallurgical industry represents one of the leading causes of environmental pollution. In this context, the optimization of mineral waste management and the efficient extraction of metals of interest becomes an imperative priority for a sustainable future. Microorganisms such as Acid...
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| Veröffentlicht in: | Archives of microbiology 2024-07, Vol.206 (7), p.320-320, Article 320 |
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| creator | Pérez-Villagrán, Karla Martínez-Prado, María Adriana Núñez-Ramírez, Diola Marina Medina-Torres, Luis Rojas Contreras, Juan Antonio Cabrales-González, Angel Manuel |
| description | The mining and metallurgical industry represents one of the leading causes of environmental pollution. In this context, the optimization of mineral waste management and the efficient extraction of metals of interest becomes an imperative priority for a sustainable future. Microorganisms such as
Acidithiobacillus thiooxidans
have represented a sustainable and economical alternative in recent years due to their capacity for environmental remediation in bioleaching processes because of their sulfur-oxidizing capacity and sulfuric acid generation. However, its use has been limited due to the reluctance of mine operators because of the constant reproduction of the bacterial culture in suitable media and the care that this entails. In this work, the central objective was to evaluate the functional characteristics of
A. thiooxidans
, microencapsulated and stored at room temperature for three years in vacuum bags, using a spray drying process with gum arabic as a wall vector. Growth kinetics showed a survival of 80 ± 0.52% after this long period of storage. Also, a qualitative fluorescence technique with a 5-cyano-2-3 ditolyl tetrazolium (CTC) marker was used to determine the respiratory activity of the microorganisms as soon as it was resuspended. On the other hand, the consumption of resuspended sulfur was evaluated to corroborate the correct metabolic functioning of the bacteria, with results of up to 50% sulfur reduction in 16 days and sulfate generation of 513.85 ± 0.4387 ppm and 524.15 ± 0.567 ppm for microencapsulated and non-microencapsulated cultures, respectively. These results demonstrate the success after three years of the microencapsulation process and give guidelines for its possible application in the mining-metallurgical industry.
Graphical abstract
Microencapsulation process of
A. thiooxidans
using gum arabic as wall material. Its application may serve as an attractive alternative for the mining industry and as a tool to mitigate the environmental impact of such practices. Created with BioRender.com |
| doi_str_mv | 10.1007/s00203-024-04041-0 |
| format | Article |
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Acidithiobacillus thiooxidans
have represented a sustainable and economical alternative in recent years due to their capacity for environmental remediation in bioleaching processes because of their sulfur-oxidizing capacity and sulfuric acid generation. However, its use has been limited due to the reluctance of mine operators because of the constant reproduction of the bacterial culture in suitable media and the care that this entails. In this work, the central objective was to evaluate the functional characteristics of
A. thiooxidans
, microencapsulated and stored at room temperature for three years in vacuum bags, using a spray drying process with gum arabic as a wall vector. Growth kinetics showed a survival of 80 ± 0.52% after this long period of storage. Also, a qualitative fluorescence technique with a 5-cyano-2-3 ditolyl tetrazolium (CTC) marker was used to determine the respiratory activity of the microorganisms as soon as it was resuspended. On the other hand, the consumption of resuspended sulfur was evaluated to corroborate the correct metabolic functioning of the bacteria, with results of up to 50% sulfur reduction in 16 days and sulfate generation of 513.85 ± 0.4387 ppm and 524.15 ± 0.567 ppm for microencapsulated and non-microencapsulated cultures, respectively. These results demonstrate the success after three years of the microencapsulation process and give guidelines for its possible application in the mining-metallurgical industry.
Graphical abstract
Microencapsulation process of
A. thiooxidans
using gum arabic as wall material. Its application may serve as an attractive alternative for the mining industry and as a tool to mitigate the environmental impact of such practices. Created with BioRender.com</description><identifier>ISSN: 0302-8933</identifier><identifier>ISSN: 1432-072X</identifier><identifier>EISSN: 1432-072X</identifier><identifier>DOI: 10.1007/s00203-024-04041-0</identifier><identifier>PMID: 38907882</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Acidithiobacillus thiooxidans ; Acidithiobacillus thiooxidans - growth & development ; Acidithiobacillus thiooxidans - metabolism ; ambient temperature ; Bacteria ; bacterial culture ; Bacterial leaching ; Biochemistry ; bioleaching ; Biomedical and Life Sciences ; Biotechnology ; Biotechnology - methods ; Cell Biology ; Culture media ; Drying ; Ecology ; Environmental cleanup ; Extractive metallurgy ; fluorescence ; Growth kinetics ; growth models ; gum arabic ; Gum Arabic - chemistry ; industry ; Leaching ; Life Sciences ; Metal industry ; metallurgy ; Metals ; Microbial Ecology ; Microbiology ; Microencapsulation ; Microorganisms ; Mining ; Mining industry ; Original Paper ; pollution ; remediation ; reproduction ; Room temperature ; Spray Drying ; sulfates ; Sulfur ; Sulfur - metabolism ; Sulfuric acid ; tetrazolium ; Vacuum bags ; Waste management</subject><ispartof>Archives of microbiology, 2024-07, Vol.206 (7), p.320-320, Article 320</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c289t-c8fcd3f549e132ee59605b117b5acd9e94ef9bbebe9422c49e9e895431c2c6923</cites><orcidid>0000-0003-3643-1729 ; 0000-0002-9142-0638</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00203-024-04041-0$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00203-024-04041-0$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/38907882$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Pérez-Villagrán, Karla</creatorcontrib><creatorcontrib>Martínez-Prado, María Adriana</creatorcontrib><creatorcontrib>Núñez-Ramírez, Diola Marina</creatorcontrib><creatorcontrib>Medina-Torres, Luis</creatorcontrib><creatorcontrib>Rojas Contreras, Juan Antonio</creatorcontrib><creatorcontrib>Cabrales-González, Angel Manuel</creatorcontrib><title>Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry</title><title>Archives of microbiology</title><addtitle>Arch Microbiol</addtitle><addtitle>Arch Microbiol</addtitle><description>The mining and metallurgical industry represents one of the leading causes of environmental pollution. In this context, the optimization of mineral waste management and the efficient extraction of metals of interest becomes an imperative priority for a sustainable future. Microorganisms such as
Acidithiobacillus thiooxidans
have represented a sustainable and economical alternative in recent years due to their capacity for environmental remediation in bioleaching processes because of their sulfur-oxidizing capacity and sulfuric acid generation. However, its use has been limited due to the reluctance of mine operators because of the constant reproduction of the bacterial culture in suitable media and the care that this entails. In this work, the central objective was to evaluate the functional characteristics of
A. thiooxidans
, microencapsulated and stored at room temperature for three years in vacuum bags, using a spray drying process with gum arabic as a wall vector. Growth kinetics showed a survival of 80 ± 0.52% after this long period of storage. Also, a qualitative fluorescence technique with a 5-cyano-2-3 ditolyl tetrazolium (CTC) marker was used to determine the respiratory activity of the microorganisms as soon as it was resuspended. On the other hand, the consumption of resuspended sulfur was evaluated to corroborate the correct metabolic functioning of the bacteria, with results of up to 50% sulfur reduction in 16 days and sulfate generation of 513.85 ± 0.4387 ppm and 524.15 ± 0.567 ppm for microencapsulated and non-microencapsulated cultures, respectively. These results demonstrate the success after three years of the microencapsulation process and give guidelines for its possible application in the mining-metallurgical industry.
Graphical abstract
Microencapsulation process of
A. thiooxidans
using gum arabic as wall material. Its application may serve as an attractive alternative for the mining industry and as a tool to mitigate the environmental impact of such practices. Created with BioRender.com</description><subject>Acidithiobacillus thiooxidans</subject><subject>Acidithiobacillus thiooxidans - growth & development</subject><subject>Acidithiobacillus thiooxidans - metabolism</subject><subject>ambient temperature</subject><subject>Bacteria</subject><subject>bacterial culture</subject><subject>Bacterial leaching</subject><subject>Biochemistry</subject><subject>bioleaching</subject><subject>Biomedical and Life Sciences</subject><subject>Biotechnology</subject><subject>Biotechnology - methods</subject><subject>Cell Biology</subject><subject>Culture media</subject><subject>Drying</subject><subject>Ecology</subject><subject>Environmental cleanup</subject><subject>Extractive metallurgy</subject><subject>fluorescence</subject><subject>Growth kinetics</subject><subject>growth models</subject><subject>gum arabic</subject><subject>Gum Arabic - chemistry</subject><subject>industry</subject><subject>Leaching</subject><subject>Life Sciences</subject><subject>Metal industry</subject><subject>metallurgy</subject><subject>Metals</subject><subject>Microbial Ecology</subject><subject>Microbiology</subject><subject>Microencapsulation</subject><subject>Microorganisms</subject><subject>Mining</subject><subject>Mining industry</subject><subject>Original Paper</subject><subject>pollution</subject><subject>remediation</subject><subject>reproduction</subject><subject>Room temperature</subject><subject>Spray Drying</subject><subject>sulfates</subject><subject>Sulfur</subject><subject>Sulfur - metabolism</subject><subject>Sulfuric acid</subject><subject>tetrazolium</subject><subject>Vacuum bags</subject><subject>Waste management</subject><issn>0302-8933</issn><issn>1432-072X</issn><issn>1432-072X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU-L1TAUxYMozpvRL-BCAm7cVG-S9jVZDsPoCANuFNyVJE3fy5Amz_wR-5H8lqbTUcGFrnLD_Z1z4RyEXhB4QwD6twmAAmuAtg200JIGHqEdaRltoKdfHqMdMKANF4ydofOU7gAI5Zw_RWeMC-g5pzv04_qbdEVmGzwOE56K1-ssHdZHGaXOJtqUrU7r9lLb0eajDUpq61xJeP2E73aUPuHZ6hiM1_KUipPZjNh6fCgzrj7KaqwWnE5RLs0YF-sPWCasbMhGH31w4WB1PZpDcKssH0318ytm_VhSjssz9GSSLpnnD-8F-vzu-tPVTXP78f2Hq8vbRlMucqP5pEc2da0whFFjOrGHThHSq07qURjRmkkoZVSdKNUVE4aLrmVEU70XlF2g15vvKYavxaQ8zDZp45z0JpQ0MNKx_V50IP6PQl8TZ0zwir76C70LJdacN6pi7T1FN6ommVI003CKdpZxGQgMa-fD1vlQOx_uOx-gil4-WBc1m_G35FfJFWAbUOOviZr45_Y_bH8CODG7cw</recordid><startdate>20240701</startdate><enddate>20240701</enddate><creator>Pérez-Villagrán, Karla</creator><creator>Martínez-Prado, María Adriana</creator><creator>Núñez-Ramírez, Diola Marina</creator><creator>Medina-Torres, Luis</creator><creator>Rojas Contreras, Juan Antonio</creator><creator>Cabrales-González, Angel Manuel</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>K9.</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope><orcidid>https://orcid.org/0000-0003-3643-1729</orcidid><orcidid>https://orcid.org/0000-0002-9142-0638</orcidid></search><sort><creationdate>20240701</creationdate><title>Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry</title><author>Pérez-Villagrán, Karla ; Martínez-Prado, María Adriana ; Núñez-Ramírez, Diola Marina ; Medina-Torres, Luis ; Rojas Contreras, Juan Antonio ; Cabrales-González, Angel Manuel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c289t-c8fcd3f549e132ee59605b117b5acd9e94ef9bbebe9422c49e9e895431c2c6923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Acidithiobacillus thiooxidans</topic><topic>Acidithiobacillus thiooxidans - growth & development</topic><topic>Acidithiobacillus thiooxidans - metabolism</topic><topic>ambient temperature</topic><topic>Bacteria</topic><topic>bacterial culture</topic><topic>Bacterial leaching</topic><topic>Biochemistry</topic><topic>bioleaching</topic><topic>Biomedical and Life Sciences</topic><topic>Biotechnology</topic><topic>Biotechnology - methods</topic><topic>Cell Biology</topic><topic>Culture media</topic><topic>Drying</topic><topic>Ecology</topic><topic>Environmental cleanup</topic><topic>Extractive metallurgy</topic><topic>fluorescence</topic><topic>Growth kinetics</topic><topic>growth models</topic><topic>gum arabic</topic><topic>Gum Arabic - chemistry</topic><topic>industry</topic><topic>Leaching</topic><topic>Life Sciences</topic><topic>Metal industry</topic><topic>metallurgy</topic><topic>Metals</topic><topic>Microbial Ecology</topic><topic>Microbiology</topic><topic>Microencapsulation</topic><topic>Microorganisms</topic><topic>Mining</topic><topic>Mining industry</topic><topic>Original Paper</topic><topic>pollution</topic><topic>remediation</topic><topic>reproduction</topic><topic>Room temperature</topic><topic>Spray Drying</topic><topic>sulfates</topic><topic>Sulfur</topic><topic>Sulfur - metabolism</topic><topic>Sulfuric acid</topic><topic>tetrazolium</topic><topic>Vacuum bags</topic><topic>Waste management</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pérez-Villagrán, Karla</creatorcontrib><creatorcontrib>Martínez-Prado, María Adriana</creatorcontrib><creatorcontrib>Núñez-Ramírez, Diola Marina</creatorcontrib><creatorcontrib>Medina-Torres, Luis</creatorcontrib><creatorcontrib>Rojas Contreras, Juan Antonio</creatorcontrib><creatorcontrib>Cabrales-González, Angel Manuel</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Archives of microbiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pérez-Villagrán, Karla</au><au>Martínez-Prado, María Adriana</au><au>Núñez-Ramírez, Diola Marina</au><au>Medina-Torres, Luis</au><au>Rojas Contreras, Juan Antonio</au><au>Cabrales-González, Angel Manuel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry</atitle><jtitle>Archives of microbiology</jtitle><stitle>Arch Microbiol</stitle><addtitle>Arch Microbiol</addtitle><date>2024-07-01</date><risdate>2024</risdate><volume>206</volume><issue>7</issue><spage>320</spage><epage>320</epage><pages>320-320</pages><artnum>320</artnum><issn>0302-8933</issn><issn>1432-072X</issn><eissn>1432-072X</eissn><abstract>The mining and metallurgical industry represents one of the leading causes of environmental pollution. In this context, the optimization of mineral waste management and the efficient extraction of metals of interest becomes an imperative priority for a sustainable future. Microorganisms such as
Acidithiobacillus thiooxidans
have represented a sustainable and economical alternative in recent years due to their capacity for environmental remediation in bioleaching processes because of their sulfur-oxidizing capacity and sulfuric acid generation. However, its use has been limited due to the reluctance of mine operators because of the constant reproduction of the bacterial culture in suitable media and the care that this entails. In this work, the central objective was to evaluate the functional characteristics of
A. thiooxidans
, microencapsulated and stored at room temperature for three years in vacuum bags, using a spray drying process with gum arabic as a wall vector. Growth kinetics showed a survival of 80 ± 0.52% after this long period of storage. Also, a qualitative fluorescence technique with a 5-cyano-2-3 ditolyl tetrazolium (CTC) marker was used to determine the respiratory activity of the microorganisms as soon as it was resuspended. On the other hand, the consumption of resuspended sulfur was evaluated to corroborate the correct metabolic functioning of the bacteria, with results of up to 50% sulfur reduction in 16 days and sulfate generation of 513.85 ± 0.4387 ppm and 524.15 ± 0.567 ppm for microencapsulated and non-microencapsulated cultures, respectively. These results demonstrate the success after three years of the microencapsulation process and give guidelines for its possible application in the mining-metallurgical industry.
Graphical abstract
Microencapsulation process of
A. thiooxidans
using gum arabic as wall material. Its application may serve as an attractive alternative for the mining industry and as a tool to mitigate the environmental impact of such practices. Created with BioRender.com</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>38907882</pmid><doi>10.1007/s00203-024-04041-0</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-3643-1729</orcidid><orcidid>https://orcid.org/0000-0002-9142-0638</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0302-8933 |
| ispartof | Archives of microbiology, 2024-07, Vol.206 (7), p.320-320, Article 320 |
| issn | 0302-8933 1432-072X 1432-072X |
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| subjects | Acidithiobacillus thiooxidans Acidithiobacillus thiooxidans - growth & development Acidithiobacillus thiooxidans - metabolism ambient temperature Bacteria bacterial culture Bacterial leaching Biochemistry bioleaching Biomedical and Life Sciences Biotechnology Biotechnology - methods Cell Biology Culture media Drying Ecology Environmental cleanup Extractive metallurgy fluorescence Growth kinetics growth models gum arabic Gum Arabic - chemistry industry Leaching Life Sciences Metal industry metallurgy Metals Microbial Ecology Microbiology Microencapsulation Microorganisms Mining Mining industry Original Paper pollution remediation reproduction Room temperature Spray Drying sulfates Sulfur Sulfur - metabolism Sulfuric acid tetrazolium Vacuum bags Waste management |
| title | Evaluation of functional characteristics of Acidithiobacillus thiooxidans microencapsulated in gum arabic by spray-drying as biotechnological tool in the mining industry |
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