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Rhamnolipids production in semi-submerged static-cultivation using agar cubes as solid substrate.

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Title: Rhamnolipids production in semi-submerged static-cultivation using agar cubes as solid substrate.
Authors: de Alencar Almeida, Mayara1,2 (AUTHOR), Conceição, Karen Stefany1 (AUTHOR), Teixeira, Juliana Perez Marques1 (AUTHOR), Pan, Nicole Caldas1 (AUTHOR), Alves, Luis Paulo Silveira1 (AUTHOR), Nakazato, Gerson3 (AUTHOR), Donatti, Lucélia4 (AUTHOR), Souza, Emanuel M.2 (AUTHOR), Camilios-Neto, Doumit1 (AUTHOR), Vignoli, Josiane A.1 (AUTHOR) javignoli@uel.br
Source: World Journal of Microbiology & Biotechnology. Jun2025, Vol. 41 Issue 6, p1-9. 9p.
Subjects: Physical & theoretical chemistry, Furfural, Soy oil, Rhamnolipids, Industrial costs
Abstract: Surfactants are amphiphilic molecules with a worldwide billionaire market. Although chemical surfactants are the most available and commonly used, the microbiologically produced congeners have attracted attention due to their low toxicity, biodegradability, and high ecological acceptability. Among microbial surfactants rhamnolipids stand out, with high yields of production, excellent surface-active properties and great potential market. However, the application of these compounds is still limited mostly because of excessive production costs. This study presents a cost-effective process for rhamnolipids production by semi-submerged static-cultivation using agar cubes as substrate. A concentration of 50 g/L of rhamnolipids was reached in semi-submerged static-cultivation using agar cubes containing corn bran and soybean oil. Through this static process, besides avoiding foam, gradual release of nutrients provides a large increase in P. aeruginosa growth and consequently on rhamnolipids production. [ABSTRACT FROM AUTHOR]
Copyright of World Journal of Microbiology & Biotechnology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Rhamnolipids production in semi-submerged static-cultivation using agar cubes as solid substrate.
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  Data: <searchLink fieldCode="JN" term="%22World+Journal+of+Microbiology+%26+Biotechnology%22">World Journal of Microbiology & Biotechnology</searchLink>. Jun2025, Vol. 41 Issue 6, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Physical+%26+theoretical+chemistry%22">Physical & theoretical chemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Furfural%22">Furfural</searchLink><br /><searchLink fieldCode="DE" term="%22Soy+oil%22">Soy oil</searchLink><br /><searchLink fieldCode="DE" term="%22Rhamnolipids%22">Rhamnolipids</searchLink><br /><searchLink fieldCode="DE" term="%22Industrial+costs%22">Industrial costs</searchLink>
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  Data: Surfactants are amphiphilic molecules with a worldwide billionaire market. Although chemical surfactants are the most available and commonly used, the microbiologically produced congeners have attracted attention due to their low toxicity, biodegradability, and high ecological acceptability. Among microbial surfactants rhamnolipids stand out, with high yields of production, excellent surface-active properties and great potential market. However, the application of these compounds is still limited mostly because of excessive production costs. This study presents a cost-effective process for rhamnolipids production by semi-submerged static-cultivation using agar cubes as substrate. A concentration of 50 g/L of rhamnolipids was reached in semi-submerged static-cultivation using agar cubes containing corn bran and soybean oil. Through this static process, besides avoiding foam, gradual release of nutrients provides a large increase in P. aeruginosa growth and consequently on rhamnolipids production. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of World Journal of Microbiology & Biotechnology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11274-025-04412-9
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        Type: general
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      – SubjectFull: Soy oil
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      – SubjectFull: Rhamnolipids
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              Text: Jun2025
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