Ethanol and 2-phenylethanol production by bee-isolated Meyerozyma caribbica strains.

Autor:	Fenner ED; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil.; Postgraduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Cerro Largo, Rio Grande do Sul, Brazil., Bressan SK; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil., Santos AAD; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil.; Postgraduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Cerro Largo, Rio Grande do Sul, Brazil., Giehl A; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil., Minussi GDA; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil.; Postgraduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Cerro Largo, Rio Grande do Sul, Brazil., Teixeira EAA; Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Diniz MDC; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil., Werlang L; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil., Fogolari O; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil., Rosa CA; Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil., Treichel H; Laboratory of Microbiology and Bioprocesses, Federal University of Fronteira Sul, Erechim, Rio Grande do Sul, Brazil., Cabrera LDC; Postgraduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Cerro Largo, Rio Grande do Sul, Brazil., Alves Junior SL; Laboratory of Yeast Biochemistry (LabBioLev), Federal University of Fronteira Sul, Chapecó, Santa Catarina, Brazil.; Postgraduate Program in Environment and Sustainable Technologies, Federal University of Fronteira Sul, Cerro Largo, Rio Grande do Sul, Brazil.
Jazyk:	angličtina
Zdroj:	Preparative biochemistry & biotechnology [Prep Biochem Biotechnol] 2024 Oct 10, pp. 1-11. Date of Electronic Publication: 2024 Oct 10.
DOI:	10.1080/10826068.2024.2414094
Abstrakt:	Investigating the biotechnological potential of wild microorganisms is paramount for optimizing bioprocesses. Given this premise, we looked for yeasts in Brazilian native stingless bees, considering the recognized potential of pollinating insect-associated microorganisms for the production of volatile organic compounds (VOCs). Two yeast strains of the species Meyerozyma caribbica were isolated from bees Scaptotrigona postica and evaluated for their fermentative capacity. Both yeasts were capable of fermenting sucrose (the main sugar used in the Brazilian ethanol industry) with over 90% efficiency and yields of up to 0.504 g/g. Through an experimental design analysis (CCD), it was verified that the ethanol productivity of these yeasts can also benefit from high concentrations of sucrose and low pH values, desirable traits for microorganisms in this biofuel production. At the same time, CCD analyses also showed the great capacity of these M. caribbica strains to produce another alcohol of broad biotechnological interest, 2-phenylethanol. Interestingly, the statistical analyses demonstrated that greater production of this compound can occur at high sugar concentrations and low availability of nitrogen sources, which can be easily achieved using residual low-cost feedstocks. Thus, our results suggest that these M. caribbica strains may be efficiently used in both ethanol and 2-phenylethanol production.
Databáze:	MEDLINE
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