Highly enantioselective reduction of 2-hydroxy-1-phenylethanone to enantiopure (R)-phenyl-1,2-ethanediol using Saccharomyces cerevisiae of remarkable reaction stability. 2010

Qingsen Hu, and Yan Xu, and Yao Nie
Key Laboratory of Industrial Biotechnology of Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China.

Saccharomyces cerevisiae JUC15 was successfully obtained by target reaction-oriented screening, which reduced 2-hydroxy-1-phenylethanone (HPE) to (R)-phenyl-1,2-ethanediol ((R)-PED) of excellent enantiomeric excess (e.e. >99.9%). There was no significant decrease in the yield and optical purity of (R)-PED when the free cells were reused for 40 repeated cycles at 2gL(-1) substrate concentration. The strain used cheap sucrose for cofactor regeneration and worked over a considerably wider range of pH (4-9). The optimum substrate concentration was 8gL(-1), which was higher than any other biocatalysts reported so far. Interesting, when HPE concentration reached 20gL(-1) in reaction system, where 43.2% of the substrate was present in suspended solid form, the reaction still gave enantiopure (R)-PED in 71% yield. Last but not least, the product e.e. kept above 99.9% in all examined conditions. These results suggest the potential of this strain for the industrial production of optically active (R)-PED.

UI MeSH Term Description Entries
D010880 Piperidines A family of hexahydropyridines.
D005026 Ethylene Glycols An ethylene compound with two hydroxy groups (-OH) located on adjacent carbons. They are viscous and colorless liquids. Some are used as anesthetics or hypnotics. However, the class is best known for their use as a coolant or antifreeze. Dihydroxyethanes,Ethanediols,Glycols, Ethylene
D012441 Saccharomyces cerevisiae A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement. Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species
D013395 Sucrose A nonreducing disaccharide composed of GLUCOSE and FRUCTOSE linked via their anomeric carbons. It is obtained commercially from SUGARCANE, sugar beet (BETA VULGARIS), and other plants and used extensively as a food and a sweetener. Saccharose

Related Publications

Qingsen Hu, and Yan Xu, and Yao Nie
January 2020, Frontiers in bioengineering and biotechnology,
Qingsen Hu, and Yan Xu, and Yao Nie
May 2019, Letters in applied microbiology,
Qingsen Hu, and Yan Xu, and Yao Nie
March 2012, Chirality,
Copied contents to your clipboard!