Nonionizing Electromagnetic Field: A Promising Alternative for Growing Control Yeast.

Journal of fungi (Basel, Switzerland) · 2021 · Harm · Low evidence

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HarmLow evidencePaper 5693

Exposure to electromagnetic fields between 1 and 5.9 GHz reduced yeast viability across all tested frequencies. Transmission electron microscopy indicated loss of continuity of the yeast cell membrane, and distance between the antenna and sample influenced th…

Study snapshot

PublicationJournal of fungi (Basel, Switzerland) · 2021

Study typeother

Reported directionHarm

Evidence ratingLow

Abstract

In the food industry, some fungi are considered to be common spoilage microorganisms which reduce the shelf life of products. To avoid this outcome, different technologies are being developed to control their growth. Electromagnetic fields (EMF) have been used to combat bacterial growth, but there are few studies on yeasts and their possible action mechanisms. For this reason, we studied the effect of EMF between 1 to 5.9 GHz bands on the growth of yeast and observed that all the frequencies of the band used cause the reduction of the viability of this yeast. In addition, we observed that the distance between the antenna and the sample is an important factor to consider to control the growing yeast. By using transmission electron microscopy, we found that the EMF caused a loss of continuity of the yeast cell membrane. Therefore, EMF may be used as a control method for yeast growth.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionharm

PopulationNot supplied

Sample sizeNot supplied

ExposureRF

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Yeast viability/growth
Yeast cell membrane integrity (TEM)

Limitations

Sample size not reported in abstract
Exposure metrics (e.g., power density, SAR) not reported in abstract
Exposure duration not reported in abstract
Yeast species/strain not specified in abstract

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": "RF",
    "source": "antenna exposure (laboratory EMF)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Yeast viability/growth",
    "Yeast cell membrane integrity (TEM)"
  ],
  "main_findings": "Exposure to electromagnetic fields between 1 and 5.9 GHz reduced yeast viability across all tested frequencies. Transmission electron microscopy indicated loss of continuity of the yeast cell membrane, and distance between the antenna and sample influenced the effect.",
  "effect_direction": "harm",
  "limitations": [
    "Sample size not reported in abstract",
    "Exposure metrics (e.g., power density, SAR) not reported in abstract",
    "Exposure duration not reported in abstract",
    "Yeast species/strain not specified in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "nonionizing electromagnetic field",
    "RF",
    "1–5.9 GHz",
    "yeast",
    "food spoilage control",
    "viability",
    "transmission electron microscopy",
    "cell membrane"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.3390/jof7040281
PubMed: 33918089

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