An examination of factors affecting radio frequency heating of an encased meat emulsion.

Meat science · 2007 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 3510

Study snapshot

PublicationMeat science · 2007

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

The potential of radiofrequency (RF) heating for rapid cooking of a cased comminuted meat emulsion (white pudding) to a pasteurisation temperature of 73°C was examined. Immersion of the product in water was essential in order to prevent thermal damage to the casings by electrical arcing effects during heating. Using a polyethylene heating cell with non-circulating water the applied RF power, primary electrode distance as well as the mineral content, temperature and volume of the surrounding water all influenced the efficiency of the RF heating. Under optimised conditions maximum/minimum temperature gradients (ΔT) across the products in excess of 15°C were observed. These could be reduced to around 6°C by heating the white puddings in a cell operating with recirculating hot water (80°C). Using an oven power output of 450W a 4.3-fold reduction in cooking time compared to conventional steam oven cooking could be achieved.

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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 typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureRF

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

RF heating was evaluated for rapidly cooking a cased comminuted meat emulsion to 73°C. Heating efficiency depended on applied RF power, electrode distance, and the mineral content, temperature, and volume of surrounding water; immersion in water was needed to prevent casing damage from electrical arcing. Under optimized conditions temperature gradients >15°C occurred but were reduced to ~6°C using recirculating hot water (80°C), and at 450 W a 4.3-fold reduction in cooking time versus steam oven cooking was reported.

Outcomes measured

Heating efficiency
Temperature gradients across product (ΔT)
Cooking time reduction
Electrical arcing/thermal damage to casings

Limitations

RF frequency not reported
Sample size not reported
No biological/health outcomes assessed (engineering/food processing focus)

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": "RF",
    "source": "RF heating (food processing oven/cell)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Heating efficiency",
    "Temperature gradients across product (ΔT)",
    "Cooking time reduction",
    "Electrical arcing/thermal damage to casings"
  ],
  "main_findings": "RF heating was evaluated for rapidly cooking a cased comminuted meat emulsion to 73°C. Heating efficiency depended on applied RF power, electrode distance, and the mineral content, temperature, and volume of surrounding water; immersion in water was needed to prevent casing damage from electrical arcing. Under optimized conditions temperature gradients >15°C occurred but were reduced to ~6°C using recirculating hot water (80°C), and at 450 W a 4.3-fold reduction in cooking time versus steam oven cooking was reported.",
  "effect_direction": "unclear",
  "limitations": [
    "RF frequency not reported",
    "Sample size not reported",
    "No biological/health outcomes assessed (engineering/food processing focus)"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "radiofrequency heating",
    "RF",
    "food processing",
    "meat emulsion",
    "pasteurisation",
    "temperature gradients",
    "electrical arcing",
    "electrode distance",
    "water mineral content"
  ],
  "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: 10.1016/j.meatsci.2006.07.022
PubMed: 22063803

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