Summary
New yeast isolates from unexplored Patagonian habitats were studied for the production of biomass and carotenoids as the first step towards the selection of hyper-producing strains and the design of a process optimization approach. Patagonian yeast isolates considered as potential biomass and carotenoid sources were studied using ammonium sulphate and urea as nitrogen sources in semi-synthetic medium (MMS), and agro-industrial byproducts (cane molasses, corn syrup, raw malt extract) as carbon sources. Maximum pigment production (300 μg g−1) was achieved by Rhodotorula mucilaginosa CRUB 0195 and by novel species Cryptococcus sp. CRUB 1046. β-carotene, torulene and torularhodin were the major carotenoids found.
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Acknowledgements
This work was financially supported by the Universidad Nacional del Comahue and CONICET Project B091 granted to MvB and by Biotay S. A. Special thanks are given to A. Caballero and G. Vobis, and to the laboratory of Fotobiología (CRUB) for providing TLC and spectrophotometer equipments for sample analysis.
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Libkind, D., van Broock, M. Biomass and carotenoid pigment production by patagonian native yeasts. World J Microbiol Biotechnol 22, 687–692 (2006). https://doi.org/10.1007/s11274-005-9091-3
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DOI: https://doi.org/10.1007/s11274-005-9091-3