title: Production of riboflavin (vitamin B2) by hydrocarbon-utilizing yeasts.
abstract: Candida guilliermondii Wickerham was found to be superior to the other yeasts tested for growth yields and riboflavin production when cultivated on different carbohydrate and hydrocarbon-containing media. Among the refined petroleum fractions and cheap hydrocarbons tested, solar was selected as a carbon source best suited for the fermentation process. The highest growth yield and riboflavin output (10.64 mg/100 ml) by C. guilliermondii Wickerham were achieved by placing aliquots of 20 ml medium (pH 6.0) in 100 ml Erlenmeyer flasks and incubating the inoculated medium at 30 degrees C for 14 days in the dark.
authors.affiliation: Botany Department, Faculty of Science, Alexandria University, Egypt.
authors.forename: S A
authors.initials: SA
authors.lastname: Sabry
authors.forename: A H
authors.initials: AH
authors.lastname: el-Refai
authors.forename: S Y
authors.initials: SY
authors.lastname: Gamati
mesh_terms: D002175:Candida / Q000378:metabolism; D003470:Culture Media; D005285:Fermentation; D006838:Hydrocarbons / Q000378:metabolism*; D008828:Microbiological Techniques; D012256:Riboflavin / Q000096:biosynthesis*; D013045:Species Specificity; D015003:Yeasts / Q000378:metabolism*
chemical_list: D003470:Culture Media; D006838:Hydrocarbons; D012256:Riboflavin