Evidence map›Paper›PMID 28921896›Full record

ArticleMolecular nutrition & food research2018

Evaluating Potential Risks of Food Allergy and Toxicity of Soy Leghemoglobin Expressed in Pichia pastoris.

Yuan Jin, Xiaoyun He, Kwame Andoh-Kumi, Rachel Z Fraser, Mei Lu, Richard E Goodman

Open access · hybridAbstract read
In one paragraph

Article in Molecular nutrition & food research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 76 citations in OpenAlex.

  1. Recent advances in microbial fermentation for the production of leghemoglobin.World journal of microbiology & biotechnology · 2025
    Review
  2. Article
  3. Article
  4. Review
  5. Cutting-Edge Technologies of Meat Analogs: A Review.Food science of animal resources · 2025
    Review
  6. Article
  7. Applications of the Methylotrophic YeastJournal of fungi (Basel, Switzerland) · 2024
    Review
  8. Safety of soy leghemoglobin from genetically modifiedEFSA journal. European Food Safety Authority · 2024
    Article
  9. Article
  10. Article
  11. Applications of the Whole-Cell System in the Efficient Biosynthesis of Heme.International journal of molecular sciences · 2023
    Review
  12. Article
  13. Review
  14. Article
  15. High-level expression of leghemoglobin inFrontiers in bioengineering and biotechnology · 2023
    Article
  16. Bioreactors, scaffolds and microcarriers andFrontiers in nutrition · 2023
    Review
  17. Article
  18. Review
  19. Article
  20. Review
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

6 authors at 3 institutions in 2 countries.

Yuan JinFood Allergy Research and Resource Program, Dept. of Food Science & Technology, University of Nebraska-Lincoln, Lincoln, NE, USA.
Xiaoyun HeCollege of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
Kwame Andoh-KumiFood Allergy Research and Resource Program, Dept. of Food Science & Technology, University of Nebraska-Lincoln, Lincoln, NE, USA.
Rachel Z FraserImpossible Foods Inc., Redwood City, CA, USA.
Mei LuFood Allergy Research and Resource Program, Dept. of Food Science & Technology, University of Nebraska-Lincoln, Lincoln, NE, USA.
Richard E GoodmanFood Allergy Research and Resource Program, Dept. of Food Science & Technology, University of Nebraska-Lincoln, Lincoln, NE, USA.
University of Nebraska–Lincoln · USBox (United States) · USChina Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

scopeThe Soybean (Glycine max) leghemoglobin c2 (LegHb) gene was introduced into Pichia pastoris yeast for sustainable production of a heme-carrying protein, for organoleptic use in plant-based meat. The potential allergenicity and toxicity of LegHb and 17 Pichia host-proteins each representing ≥1% of total protein in production batches are evaluated by literature review, bioinformatics sequence comparisons to known allergens or toxins, and in vitro pepsin digestion. METHODS AND

resultsLiterature searches found no evidence of allergenicity or toxicity for these proteins. There are no significant sequence matches of LegHb to known allergens or toxins. Eleven Pichia proteins have modest identity matches to minor environmental allergens and 13 Pichia proteins have significant matches to proteins from toxic sources. Yet the matched allergens and toxins have similar matches to proteins from the commonly consumed yeast Saccharomyces cerevisiae, without evidence of food allergy or toxicity. The demonstrated history of safe use indicates additional tests for allergenicity and toxicity are not needed. The LegHb and Pichia sp. proteins were rapidly digested by pepsin at pH 2.

conclusionThese results demonstrate that foods containing recombinant soy LegHb produced in Pichia sp. are unlikely to present an unacceptable risk of allergenicity or toxicity to consumers.

Indexed as

Computational BiologyFood HypersensitivityGlycine maxHumansLeghemoglobinPepsin APichiaRecombinant ProteinsRiskLeghemoglobinPepsin ARecombinant ProteinsallergenicitybioinformaticsGMOhemoglobintoxicity

Identifiers

PMID28921896
PMCPMC5813221
OpenAlexW2755623407

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.