Evidence map›Paper›PMID 19878591›Full record

ArticleMicrobial cell factories2009

High yield recombinant thermostable alpha-amylase production using an improved Bacillus licheniformis system.

Dandan Niu, Zhirui Zuo, Gui-Yang Shi, Zheng-Xiang Wang

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.3field-weighted citation impact, top 32% 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

18 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
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  3. EndophyticMicrobiology spectrum · 2026
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  17. Microbial interactions for enhancement of α-amylase production byBiotechnology reports (Amsterdam, Netherlands) · 2014
    Article
  18. 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

4 authors at 3 institutions in 2 countries.

Dandan NiuCenter for Bioresource and Bioenergy, School of Biotechnology & Culture and Information Center of Industrial Microorganisms of China Universities, Jiangnan University, Wuxi 214122, PR China.
Zhirui Zuo
Gui-Yang Shi
Zheng-Xiang Wang
Jiangnan University · CNMinistry of Education of the People's Republic of China · CNStellenbosch University · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSome strains of Bacillus licheniformis have been improved by target-directed screening as well as by classical genetic manipulation and used in commercial thermostable alpha-amylase and alkaline protease production for over 40 years. Further improvements in production of these enzymes are desirable.

resultsA new strain of B. licheniformis CBBD302 carrying a recombinant plasmid pHY-amyL for Bacillus licheniformis alpha-amylase (BLA) production was constructed. The combination of target-directed screening and genetic recombination led to an approximately 26-fold improvement of BLA production and export in B. licheniformis. Furthermore, a low-cost fermentation medium containing soybean meal and cottonseed meal for BLA production in shake-flasks and in a 15 liter bioreactor was developed and a BLA concentration of up to 17.6 mg per ml growth medium was attained.

conclusionThis production level of BLA by B. licheniformis CBBD302(pHY-amyL) is amongst the highest levels in Gram-positive bacteria reported so far.

Indexed as

alpha-AmylasesBacillusBacterial ProteinsEndopeptidasesPlasmidsRecombinant ProteinsRecombination, Geneticalkaline proteasealpha-AmylasesBacterial ProteinsEndopeptidasesRecombinant Proteins

Identifiers

PMID19878591
PMCPMC2776586
OpenAlexW2041758419

What OpenQuestion holds

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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.