Evidence map›Paper›PMID 22152005›Full record

ArticleMicrobial cell factories2011

High-yield production of biologically active recombinant protein in shake flask culture by combination of enzyme-based glucose delivery and increased oxygen transfer.

Kaisa Ukkonen, Antti Vasala, Heikki Ojamo, Peter Neubauer

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Microbial cell factories, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Foam Formation in Shake Flasks and Its Consequences.Engineering in life sciences · 2025
    Article
  3. Article
  4. Article
  5. High cell density cultivation ofBiotechnology reports (Amsterdam, Netherlands) · 2022
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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

4 authors at 2 institutions in 2 countries.

Kaisa UkkonenBioSilta Oy, FI-90014 Oulu, Finland. kaisa.ukkonen@oulu.fi
Antti Vasala
Heikki Ojamo
Peter Neubauer
University of Oulu · FITechnische Universität Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This report describes the combined use of an enzyme-based glucose release system (EnBase®) and high-aeration shake flask (Ultra Yield Flask™). The benefit of this combination is demonstrated by over 100-fold improvement in the active yield of recombinant alcohol dehydrogenase expressed in E. coli. Compared to Terrific Broth and ZYM-5052 autoinduction medium, the EnBase system improved yield mainly through increased productivity per cell. Four-fold increase in oxygen transfer by the Ultra Yield Flask contributed to higher cell density with EnBase but not with the other tested media, and consequently the product yield per ml of EnBase culture was further improved.

Indexed as

Alcohol DehydrogenaseBacterial ProteinsBatch Cell Culture TechniquesCulture MediaEscherichia coliFermentationGlucoseLactobacillusOxygenRecombinant ProteinsAlcohol DehydrogenaseBacterial ProteinsCulture MediaGlucoseOxygenRecombinant Proteins

Identifiers

PMID22152005
PMCPMC3258199
OpenAlexW2135213731

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.