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Detection of boar taint

Detection of boar taint. Coen van Wagenberg. Meeting 17-4-2013, Eindhoven, the Netherlands Develoment of an inline detection method for boar taint which is applicable in daily slaughterhouse practice, to prevent pork with boar taint reaching consumers. What is boar taint ?.

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Detection of boar taint

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  1. Detection of boartaint Coen van Wagenberg Meeting 17-4-2013, Eindhoven, the Netherlands Develoment of an inline detection method for boar taint which is applicable in daily slaughterhouse practice, to prevent pork with boar taint reaching consumers

  2. What is boartaint? Smelling unpleasant odour which is released from meat of boars if the meat is heated Develops while reaching maturity Chemical compounds Androstenone Skatole Indole p-cresole, 4-ethylphenole, 1,4-dichloorbenzeen, 4-phenyl-3-buten-2-one ???????

  3. Human nose Heatingneck fat with gas burner Line speed up to 650 boars/hour Max half hoursmellingcontinuously 1.5 million boars tested

  4. Human nose

  5. Human nose: deviant odour of boars 405 farms with boars Average deviant odour 3-4% of boars Spread between farms 0-10% Number of farms Per cent deviant smell

  6. Consumer = golden standard Boar meat samples ranked on household overall quality perception and on boar taint score with the human nose: is there a more accurate alternative? Average order of the qualityperception of households of loin, bellyandchopsfrom 1 (worst) to 55 (best) Boar number

  7. Agreement on ranking between overall quality perception consumers and order of …. Kendall's coefficient can be used for assessing agreement among raters. Kendall's W ranges from 0 (no agreement) to 1 (complete agreement).

  8. Agreement on ranking between overall quality perception consumers and order of …. • Comparison currently available detection methods: HNS, lab analysis, trained panel • Humane Nose Score (HNS) results in highest agreement with score by the consumer • Agreement HNS with consumer higher than with laboratory analysis of androstenone and skatole • Agreement HNS with consumer slightly higher than with panel results for intensity taste

  9. Effect fatigueness on human nose score Score ranging from 0 = no smell to 4 = strong smell

  10. Effect fatigueness on human nose score Conclusion: within 30 minutes we do not observe fatigueness on humane nose

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