Evidence map›Paper›PMID 34401996›Full record

ArticleFolia microbiologica2022

Protein extract of Bromelia karatas L. rich in cysteine proteases (ananain- and bromelain-like) has antibacterial activity against foodborne pathogens Listeria monocytogenes and Salmonella Typhimurium.

Elva Ávalos-Flores, Laura Margarita López-Castillo, Natalie Wielsch, Yvonne Hupfer, Robert Winkler, Denis Magaña-Ortiz

Abstract read
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In one paragraph

Article in Folia microbiologica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 35% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. 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

6 authors at 4 institutions in 2 countries.

Elva Ávalos-FloresDivisión de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Mérida, Av. Tecnológico Km. 4.5 S/N, 97118, Mérida, Yucatán, México.
Laura Margarita López-CastilloEscuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501, 64849, Monterrey, Nuevo Leon, Mexico.
Natalie WielschMass Spectrometry Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany.
Yvonne HupferMass Spectrometry Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany.
Robert WinklerMass Spectrometry Group, Max Planck Institute for Chemical Ecology, Hans-Knoell-Str. 8, 07745, Jena, Germany.
Denis Magaña-OrtizDivisión de Estudios de Posgrado e Investigación, Tecnológico Nacional de México/I.T. Mérida, Av. Tecnológico Km. 4.5 S/N, 97118, Mérida, Yucatán, México. denis.mo@merida.tecnm.mx.ORCID http://orcid.org/0000-0001-5486-5489
Instituto Tecnológico de Mérida · MXMax Planck Institute for Chemical Ecology · DEInstituto Tecnológico Superior de Irapuato · MXTecnológico de Monterrey · MX

Funding

Secretaría de Educación Pública Grant ITMER-PTC-017
6 · The paper itself

Abstract

Bromelia karatas L. is a plant species from the Americas. The presence of proteases in fruits of B. karatas has been reported but scarcely studied in detail. Proteolytic enzymes from Ananas comosus have displayed antifungal and antibacterial activity. Thus, novel proteases present in B. karatas may be useful as a source of compounds against microorganisms in medicine and food production. In this work, the protein extract from the fruits of B. karatas was characterized and its antibacterial activity against Salmonella Typhimurium and Listeria monocytogenes was determined for the first time. Proteins highly similar to ananain and the fruit bromelain from A. comosus were identified as the main proteases in B. karatas fruits using liquid chromatography with tandem mass spectrometry (LC-MS/MS). The soluble protein extract (SPE) at a concentration of 2.0 mg/mL displayed up to 80% of antibacterial activity against S. Typhimurium. Complete inhibition of L. monocytogenes was reached with up to 1.65 mg/mL of SPE. Plant protease extract containing ananain-like enzyme inhibited up to 90% against S. Typhimurium and up to 85% against L. monocytogenes using only 10 μg/mL of the partial-purified enzyme.

Indexed as

Anti-Bacterial AgentsBromeliaCysteine ProteasesListeria monocytogenesSalmonella typhimuriumBromelainsChromatography, LiquidCysteine EndopeptidasesPlant ExtractsTandem Mass SpectrometryananainAnti-Bacterial AgentsBromelainsCysteine EndopeptidasesCysteine Proteasesfruit bromelainPlant Extracts

Identifiers

PMID34401996
OpenAlexW3195098971

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.