JOURNAL ARTICLE

Improving the medium composition for the production of the natural blue-violet pigment violacein by a new Janthinobacterium sp. isolate.

  • Published In: Letters in Applied Microbiology, 2024, v. 77, n. 10. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Ishimoto, Caroline Kie; Lima Junior, Rodolfo Dantas; Scaramussa, Simone Aparecida de Lima; Fill, Taicia Pacheco; Oliveira, Valéria Maia; Bicas, Juliano Lemos 3 of 3

Abstract

This article focuses on the isolation and characterization of a potential new species of Janthinobacterium bacterium from spoiled cooked rice, which produces the blue-violet pigment violacein. Using 16S rRNA gene sequencing and ultra-high performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS), the pigment was confirmed as violacein and its co-metabolite deoxyviolacein. The study evaluated various submerged fermentation media, finding that a culture medium composed of yeast extract (5 g l⁻¹) and fructose (10 g l⁻¹) yielded the highest crude violacein production (approximately 113.68 mg l⁻¹ after 120 hours). These findings provide a foundation for developing sustainable and economically viable natural violacein production for applications in pharmaceutical, cosmetic, and food industries.

Additional Information

  • Source:Letters in Applied Microbiology. 2024/10, Vol. 77, Issue 10, p1
  • Document Type:Article
  • Subject Area:Environmental Sciences
  • Publication Date:2024
  • ISSN:0266-8254
  • DOI:10.1093/lambio/ovae091
  • Accession Number:180861394
  • Copyright Statement:Copyright of Letters in Applied Microbiology is the property of Oxford University Press / USA 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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