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

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Autor(es):
Ishimoto, Caroline Kie ; Lima, Rodolfo Dantas ; Scaramussa, Simone Aparecida de Lima ; Fill, Taicia Pacheco ; Oliveira, Valeria Maia ; Bicas, Juliano Lemos
Número total de Autores: 6
Tipo de documento: Artigo Científico
Fonte: Letters in Applied Microbiology; v. 77, n. 10, p. 8-pg., 2024-10-08.
Resumo

The interest in natural compounds has increased primarily due to their beneficial health and environmental aspects. However, natural sources of some compounds, such as bluish pigments, are limited, requiring the development of efficient processes to meet commercial demands. This study isolated a blue-violet bacterium from spoiled cooked rice and identified it as a potential new species of Janthinobacterium through 16S rDNA analysis. Ultra-high performance liquid chromatography-tandem mass spectrometry analyses confirmed that the blue-violet pigment violacein was responsible for the bluish color. In laboratory conditions, different carbon and nitrogen sources were evaluated in submerged culture media to enhance pigment production. Glycerol did not result in significant pigment production by this strain, as expected from previous reports. Instead, a culture medium composed of yeast extract and fructose yielded higher pigment production, reaching about 113.68 +/- 16.68 mg l-1 after 120 h. This result provides crucial insights for future studies aiming for sustainable and commercially viable violacein production. Based on a bioeconomy concept, this approach has the potential to supply natural and economic bluish pigments for various industrial sectors, including pharmaceutical, cosmetic, and food. (AU)

Processo FAPESP: 22/02992-0 - Decifrando o papel de metabólitos secundários na interação química entre fitopatógenos e o hospedeiro citros
Beneficiário:Taicia Pacheco Fill
Modalidade de apoio: Auxílio à Pesquisa - Projeto Inicial
Processo FAPESP: 23/06147-5 - MICROBLU: produção e caracterização de biocolorantes microbianos azulados
Beneficiário:Juliano Lemos Bicas
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 24/02207-6 - Produção e caracterização de biocolorantes azuis oriundos de fungos filamentosos
Beneficiário:Simone Aparecida de Lima Scaramussa
Modalidade de apoio: Bolsas no Brasil - Doutorado