RT info:eu-repo/semantics/article
T1 Phosphate chelation over calcium impacts yeast growth and lipid production from short-chain fatty acids-rich media
A1 Morales Palomo, Sergio
A1 Tomás Pejó, Elia
A1 González Fernández, María Cristina
K1 Phosphate
K1 Calcium
K1 Chelation
K1 Lipids
K1 Yarrowia lipolytica
K1 Short-chain fatty acids
AB Some oleaginous yeasts have the ability to produce microbial oils from alternative carbon sources, such as short-chain fatty acids (SCFAs). Nevertheless, there is still a lack of information about the possible effects that media nutrients have on yeast metabolisms when using SCFAs. For instance, inorganic phosphate (PO43-) has been reported to promote yeast growth in literature but its chelating effect over other elements such as calcium (Ca2+) is often not considered in fermentation processes while limitation of nitrogen is probably the most studied. Attending at the need to better understand the role of PO43-, this work assessed the lipid production capacity of Yarrowia lipolytica ACA DC 50109, both in synthetic and real SCFAs-rich media, at different SCFAs concentrations and PO43-:Ca2+ ratios. Reducing PO43-:Ca2+ ratio was identified to be an important factor to improve yeast growth, reaching the highest lipid content (52.7 ± 0.9 % w/w) and lipid yield (0.31 ± 0.01 w/w) in media without PO43-. These results demonstrated the importance of Ca2+ availability in the medium and nutrients interactions in yeast growth that are often underestimated.
PB Elsevier
SN 2352-1864
YR 2024
FD 2024
LK https://uvadoc.uva.es/handle/10324/73258
UL https://uvadoc.uva.es/handle/10324/73258
LA eng
NO Environmental Technology & Innovation, noviembre 2024, vol. 36, 103767
NO Producción Científica
DS UVaDOC
RD 04-abr-2025