Pigmented basidiomycetous yeasts are a promising source of carotenoids and ubiquinone Q10

Production of Enriched Biomass by Carotenogenic Yeasts - Application of Whole-Cell Yeast Biomass to Production of Pigments and Other Lipid Compounds

“…It is the first time a comparative analysis of the coenzyme Q10 content in different taxa has been performed using several strains of the same species. The maximal coenzyme Q10 production (1.84 mg/g of dry biomass) was found in the yeast species R. sphaerocarpum (Yurkov et al, 2008).…”

“…Therefore, research efforts on the production of CoQ10 by microorganisms focus on the development of potent strains by conventional mutagenesis and metabolic engineering, analysis and modification of the key metabolic pathways, and optimization of fermentation strategies. Various microorganisms, including bacteria (e.g., Agrobacterium, Rhodobacter) and yeasts (e.g., Candida, Rhodotorula, and Saitoella), are reported as CoQ10 producers in patented laid-open applications purposely applied in pharmaceutical and cosmetic industry (Dimitrova et al, 2010, Yurkov et al, 2008. Strains of basidiomycetous yeasts isolated from different sources were studied in order to determine the content of carotenoid pigments and ubiquinone Q10 for subsequent selection work to obtain producers of these substances.…”

Structural Characterization and Bioactivities of Red Pigment from Marine Rhodotorula glutinis

“…[49,50] Carotenoids are the most important metabolites in Rhodotorula species, and they are widely found in nature. More than 600 kinds of carotenoids have been found, including astaxanthin, lycopene, and β-carotene.…”

Isolation of Pigmented Yeasts, Extraction of Pigment and Study of Antimicrobial Property of its Pigment

“…Dilution upto 10 -8 was prepared using 0.9% saline. For isolation from leaves, fruit peel and coconut, the surface of sample was directly streaked onto the Sabouraud-Dextrose agar plate with sterile nichrome loop (Yurkov et al, 2008). The inoculated plates were kept for 10 days in order to obtain pigmented yeasts.…”

“…In biochemical test, Sugar fermentation test with dextrose, sucrose, mannitol, maltose and lactose as different sugars, nitrate assimilation test and urease test were performed. Yurkov et al, (2008) used enrichment media in order to determine the content of carotenoid pigments from pigmented yeasts (Delia, 1992). So for enrichment of the pigments and to check whether the selected yeast strain produces sufficient amount of pigment or not, the selected isolates were inoculated in the side arm flask having 20 ml of media.…”