Artículo
Approaching Study on the Relationship Between Saccharomyces cerevisiae Production of Tyrosol, Hydroxytyrosol, and Melatonin with Volatile Compounds in Fermented Must
Autor/es | González Ramírez, Marina
Marín Torres, María del Mar Gallardo Fernández, Marta Planells-Carcel, Andrés Bisquert, Ricardo Valero Blanco, Eva María Úbeda Aguilera, Cristina Troncoso González, Ana María García Parrilla, María del Carmen |
Departamento | Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal |
Fecha de publicación | 2023-05 |
Fecha de depósito | 2023-06-07 |
Resumen | Yeasts are feasible and efective bioreactors and, therefore, there is a great interest in their industrial employment for the production of a wide range of molecules. In this study, the production by Saccharomyces cerevisiae ... Yeasts are feasible and efective bioreactors and, therefore, there is a great interest in their industrial employment for the production of a wide range of molecules. In this study, the production by Saccharomyces cerevisiae of bioactive compounds such as hydroxytyrosol (HT), tyrosol (TYR) and melatonin (MEL) vs. volatile compounds in fermented must was studied. The concentration of the bioactive compounds HT and MEL in fermented must employing diferent yeast strains revealed that the higher the concentrations, the lower the amount of volatile compounds determined. This inverse correlation was especially remarkable with respect to the production of higher alcohols, especially 2-phenylethanol (2-PE) and esters. Furthermore, the employment of a modifed Aro4pᴷ²²⁹ᴸ S. cerevisiae QA23 yeast strain which overproduces HT, gave rise to fermented must also higher in 2-PE and their corresponding esters but with an outstanding less presence of other important esters such as ethyl hexanoate and ethyl octanoate. Both premises could point out that S. cerevisiae might have diferent approaches to handling cell stress/toxicity due to their nitrogen metabolism. One detoxifying pathway could be through the production of higher alcohols and these in turn to esters and the other be more related to synthesizing antioxidant molecules such as MEL and HT. |
Agencias financiadoras | Ministerio de Ciencia, Innovación y Universidades (España) PID2019-108722RB-C32 Junta de Andalucía-Consejería de Economía y Conocimiento P18-RT-3098 Universidad de Sevilla (España) US-1263469 |
Identificador del proyecto | PID2019-108722RB-C32
P18-RT-3098 US-1263469 |
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