β-Carotene production from sugarcane molasses by a newly isolated Rhodotorula toruloides L/24-26-1.

Autor: Ochoa-Viñals N; Nanobioscience Group, Chemical Science School of the Autonomous University of Coahuila, Blvd. V. Carranza E Ing. José Cárdenas V., Col. República, Saltillo, CP, 25280, Coahuila, México., Alonso-Estrada D; Nanobioscience Group, Chemical Science School of the Autonomous University of Coahuila, Blvd. V. Carranza E Ing. José Cárdenas V., Col. República, Saltillo, CP, 25280, Coahuila, México., Faife-Pérez E; Cuban Institute for Research On Sugarcane Derivatives (ICIDCA), Vía Blanca 804 and Carretera Central, 11000, Havana, CP, Cuba., Chen Z; Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China., Michelena-Alvarez G; Cuban Institute for Research On Sugarcane Derivatives (ICIDCA), Vía Blanca 804 and Carretera Central, 11000, Havana, CP, Cuba., Martínez-Hernández JL; Nanobioscience Group, Chemical Science School of the Autonomous University of Coahuila, Blvd. V. Carranza E Ing. José Cárdenas V., Col. República, Saltillo, CP, 25280, Coahuila, México., García-Cruz A; Department of Engineering, National Technological Institute of Mexico/TI of Ciudad Valles, Ciudad Valles, SL, 79010, México., Ilina A; Nanobioscience Group, Chemical Science School of the Autonomous University of Coahuila, Blvd. V. Carranza E Ing. José Cárdenas V., Col. República, Saltillo, CP, 25280, Coahuila, México. annailina@uadec.edu.mx.
Jazyk: angličtina
Zdroj: Archives of microbiology [Arch Microbiol] 2024 May 03; Vol. 206 (6), pp. 245. Date of Electronic Publication: 2024 May 03.
DOI: 10.1007/s00203-024-03973-x
Abstrakt: Production of carotenoids by yeast fermentation is an advantaged technology due to its easy scaling and safety. Nevertheless, carotenoid production needs an economic culture medium and other efficient yeast stains. The study aims to isolate and identify a yeast strain capable of producing carotenoids using a cost-effective substrate. A new strain was identified as Rhodotorula toruloides L/24-26-1, which can produce carotenoids at different pretreated and unpretreated sugarcane molasses concentrations (40 and 80 g/L). The highest biomass concentration (18.6 ± 0.6 g/L) was reached in the culture using 80 g/L of hydrolyzed molasses. On the other hand, the carotenoid accumulation reached the maximum value using pretreated molasses at 40 g/L (715.4 ± 15.1 µg/g d.w). In this case, the β-carotene was 1.5 times higher than that on the control medium. The yeast growth in molasses was not correlated with carotenoid production. The most outstanding production of The DPPH, ABTS, and FRAP tests demonstrated the antioxidant activity of the obtained carotenogenic extracts. This research demonstrated the R. toruloides L/24-26-1 strain biotechnological potential for carotenoid compounds. The yeast produces carotenoids with antioxidant activity in an inexpensive medium, such as sulfuric acid pretreated and unpretreated molasses.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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