Evidence map›Paper›PMID 26275527›Full record

ArticleJournal of industrial microbiology & biotechnology2015

Enhanced production of (R,R)-2,3-butanediol by metabolically engineered Klebsiella oxytoca.

Jong Myoung Park, Chelladurai Rathnasingh, Hyohak Song

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of industrial microbiology & biotechnology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 37 citations in OpenAlex.

  1. Mutagenesis and Analysis for Enhancing (2Molecules (Basel, Switzerland) · 2026
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  7. C4 Bacterial Volatiles Improve Plant Health.Pathogens (Basel, Switzerland) · 2021
    Review
  8. Article
  9. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Jong Myoung ParkResearch and Development Center, GS Caltex Corporation, 104-4 Munji-dong, Yuseong-gu, Taejon, 305-380, Republic of Korea.
Chelladurai RathnasinghResearch and Development Center, GS Caltex Corporation, 104-4 Munji-dong, Yuseong-gu, Taejon, 305-380, Republic of Korea.
Hyohak SongResearch and Development Center, GS Caltex Corporation, 104-4 Munji-dong, Yuseong-gu, Taejon, 305-380, Republic of Korea. hyohaks@gscaltex.com.
GS Caltex (South Korea) · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbial fermentation produces a racemic mixture of 2,3-butanediol ((R,R)-BD, (S,S)-BD, and meso-BD), and the compositions and physiochemical properties vary from microorganism to microorganism. Although the meso form is much more difficult to transport and store because of its higher freezing point than those of the optically active forms, most microorganisms capable of producing 2,3-BD mainly yield meso-2,3-BD. Thus, we developed a metabolically engineered (R,R)-2,3-BD overproducing strain using a Klebsiella oxytoca ΔldhA ΔpflB strain, which shows an outstanding 2,3-BD production performance with more than 90 % of the meso form. A budC gene encoding 2,3-BD dehydrogenase in the K. oxytoca ΔldhA ΔpflB strain was replaced with an exogenous gene encoding (R,R)-2,3-BD dehydrogenase from Paenibacillus polymyxa (K. oxytoca ΔldhA ΔpflB ΔbudC::PBDH strain), and then its expression level was further amplified with using a pBBR1MCS plasmid. The fed-batch fermentation of the K. oxytoca ΔldhA ΔpflB ΔbudC::PBDH (pBBR-PBDH) strain with intermittent glucose feeding allowed the production of 106.7 g/L of (R,R)-2,3-BD [meso-2,3-BD, 9.3 g/L], with a yield of 0.40 g/g and a productivity of 3.1 g/L/h, which should be useful for the industrial application of 2,3-BD.

Indexed as

Metabolic EngineeringBacillusBatch Cell Culture TechniquesBioreactorsButylene GlycolsFermentationGlucoseKlebsiella oxytoca2,3-butylene glycolButylene GlycolsGlucoseKlebsiella oxytoca ΔldhA ΔpflBmeso-2,3-butanediol(R,R)-2,3-butanediol

Identifiers

PMID26275527
OpenAlexW2412311153

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.