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Author Kataoka, Naoya ♦ Vangnai, Alisa S. ♦ Tajima, Takahisa ♦ Nakashimada, Yutaka ♦ Kato, Junichi
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Elsevier
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Biochemistry ♦ Natural history of organisms ♦ Microorganisms, fungi & algae ♦ Technology ♦ Medicine & health ♦ Human physiology ♦ Pharmacology and therapeutics ♦ Diseases ♦ Chemical engineering ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Bacteria ♦ Organisms ♦ Organic Chemicals ♦ Carbohydrates ♦ Chemicals and Drugs ♦ Investigative Techniques ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Chemical Phenomena ♦ Biological Phenomena ♦ Biological Sciences
Subject Keyword Discipline Biomedical Engineering ♦ Discipline Microbiology ♦ Butylene Glycols ♦ Metabolism ♦ Escherichia Coli ♦ Genetics ♦ Batch Cell Culture Techniques ♦ Biomass ♦ Cell Engineering ♦ Fermentation ♦ Glucose ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract (R)-1,3-Butanediol is a valuable chemical extensively used as a key intermediate for the synthesis of pharmaceuticals and several industrial compounds. Despite its high demand, the production has been restricted from multi-step chemical production, petrochemical substrate requirement and a non-existence natural synthesis pathway from renewable biomass. In this study, an artificial synthesis route was genetically engineered in Escherichia coli MG1655 lacI(q) to produce 1,3-butanediol from glucose. The selection of heterologous genes from several organisms and activity level of their corresponding gene products were demonstrated to be the key element for the product formation. Improvement of fermentation aeration and the application of fed-batch system significantly enhanced 1,3-butanediol production. Under the optimized conditions, 1,3-butanediol was produced up to 9.05 g/l (100.4 mM) with 98.5 ± 0.2% enantiomeric excess (% ee) of (R)-1,3-butanediol. This is the highest yield of 1,3-butanediol produced from glucose with the highest optical purity by the recombinant strain reported thus far.
Description Country affiliation: Japan
Author Affiliation: Kataoka N ( Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Hiroshima 739-8530, Japan.)
ISSN 13891723
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-05-01
Publisher Place Japan
e-ISSN 13474421
Journal Journal of Bioscience and Bioengineering
Volume Number 115
Issue Number 5

Source: WHO-Global Index Medicus