We report a chronic hip arthroplasty infection with Rothia mucilaginosa, a Gram-positive germ belonging to the normal flora of the human oral cavity. Successful treatment was achieved by a two-stage hip arthroplasty revision and intravenous administration of vancomycin. This case report illustrates the potential virulence of R. mucilaginosa in patients with a joint prosthesis. We propose to rou...

The killing effect of peppermint vapor (PMV) against pink-slime forming microorganisms, Methylobacterium mesophilicum as a bacterium and Rhodotorula mucilaginosa as a yeast, was investigated by the agar vapor assay. In this method, microbial cells were spread over the agar surface exposed to PMV in a petri dish, and then transferred into a recovery liquid. When 60μl of the peppermint liquid was...

  Objective(s): Carotenoids which are naturally synthesized by fungi such as yeasts can act as an antioxidant which is closely related to their ability to decrease the risk of a variety of degenerative diseases. In recent years, the increase of demand for carotenoids obtained from natural sources has promoted major efforts to improve carotenoid production from biological sources such...

In industry, the yeast Rhodotorula mucilaginosa is commonly used for the production of carotenoids. The production of carotenoids is important because they are used as natural colorants in food and some carotenoids are precursors of retinol (vitamin A). However, the identification and molecular characterization of the carotenoid pathway/s in species belonging to the genus Rhodotorula is scarce ...

Background: Optically active ethyl (R)-2-hydroxy-4-phenylbutyrate [(R)-HPBE] is an important chiral building block for the synthesis of angiotensin-converting enzyme (ACE) inhibitors. It is reported that microbial or enzymatic reduction of ethyl 2-oxo-4-phenyl-butyrate (OPBE) is an attractive way to produce optically active (R)-HPBE. Results: The asymmetric reduction of OPBE to synthesize optic...

OBJECTIVE(S) Carotenoids which are naturally synthesized by fungi such as yeasts can act as an antioxidant which is closely related to their ability to decrease the risk of a variety of degenerative diseases. In recent years, the increase of demand for carotenoids obtained from natural sources has promoted major efforts to improve carotenoid production from biological sources such as pigmented ...

Rhodotorula sp. have emerged as opportunistic pathogens, particularly in immunocompromised patients. Knowledge about the susceptibility of Rhodotorula strains to the common antifungal drugs is essential for the treatment of such new infections. The 68 isolates identified as: Rhodotorula mucilaginosa (47 strains; 69%), R. minuta (14; 21%) and R. glutinis (7; 10%) obtained from various sources (f...

Rhodotorula yeasts were isolated from various local sources in Damascus, Syria, during 2012 and 2013. Fifty isolates (23 from leaves trees, 13 from different soils, 6 from different meats, 6 from dairy products, 1 pickle and 1 traditional sweet) were identified using API 20C AUX system. Isolated yeasts were classified into three Rhodotorula species: R. mucilaginosa, R. glutinis and R. minuta re...

The impaired mucociliary clearance in individuals with Cystic Fibrosis (CF) enables opportunistic pathogens to colonize CF lungs. Here we show that Rothia mucilaginosa is a common CF opportunist that was present in 83% of our patient cohort, almost as prevalent as Pseudomonas aeruginosa (89%). Sequencing of lung microbial metagenomes identified unique R. mucilaginosa strains in each patient, pr...