Evidence map›Paper›PMID 34134665›Full record

ArticleBMC biotechnology2021

Development of a method for phycocyanin recovery from filamentous cyanobacteria and evaluation of its stability and antioxidant capacity.

Jinichi Aoki, Daisaku Sasaki, Munehiko Asayama

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in BMC biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
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  8. Phycocyanin extraction fromCurrent research in food science · 2025
    Review
  9. Article
  10. Article
  11. Coproduction of lipids and carotenoids by the novel green algaBiotechnology reports (Amsterdam, Netherlands) · 2023
    Article
  12. Review
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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

3 authors at 3 institutions in 1 country.

Jinichi AokiCollege of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan.
Daisaku SasakiBioX Chemical Industries Co. Ltd., 2-20-11 Inokuchidai, Nishi-ku, Hiroshima 733-0844, Japan.
Munehiko AsayamaCollege of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0393, Japan. munehiko.asayama.777@vc.ibaraki.ac.jp.
Ibaraki University · JPNissan Chemical Corporation (Japan) · JPTokyo University of Agriculture and Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMost commercial phycocyanins are extracted from a filamentous cyanobacterium, Arthrospira (Spirulina) platensis. Owing to the expenses of culture and complexities of the physical and chemical methods of phycocyanin purification, a more effective and simple method is required.

resultsWe developed a new method for efficiently recovering the blue pigment protein, phycocyanin, from unique filamentous cyanobacteria, Pseudanabaena sp. ABRG5-3 and Limnothrix sp. SK1-2-1. The cells were cultivated in economy medium BG11 and lysed by adding water in a 1:16 ratio of wet cells to water. After extraction and purification, 28-30% dry cell weight of phycocyanin was obtained and its purity was confirmed. The stabilities of the phycocyanins at different pH in the presence of high temperature and light conditions and their antioxidant abilities were assessed. Results indicated that the phycocyanins were stable and possessed antioxidant properties. Interestingly, the Pseudanabaena phycocyanin was less likely to deteriorate under acidic conditions.

conclusionsOverall, we developed a promising and novel method for producing high functional phycocyanin concentrations at a low cost. The possibilities of adapting this new phycocyanin biorefinery to unique bioreactor utilization have also been discussed.

Indexed as

AntioxidantsChemical FractionationHot TemperatureHydrogen-Ion ConcentrationPhycocyaninSpirulinaAntioxidantsPhycocyaninAntioxidantArthrospira platensisCell lysisLimnothrix sp.PhycocyaninPseudanabaena sp.

Identifiers

PMID34134665
PMCPMC8210370
OpenAlexW3168279473

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.