Skatole concentration in porcine fat and its influence on sensory evaluation

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  • NISHIOKA Terumi
    Research Institute of Environment, Agriculture and Fisheries, Osaka Prefectural Government
  • ISHIZUKA Yuzuru
    Research Institute of Environment, Agriculture and Fisheries, Osaka Prefectural Government
  • INNO Youichi
    Research Institute of Environment, Agriculture and Fisheries, Osaka Prefectural Government
  • IRIE Masakazu
    Department of Agriculture, University of Miyazaki

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Other Title
  • 豚脂肪中のスカトール含量と官能評価への影響
  • ブタ シボウ チュウ ノ スカトール ガンリョウ ト カンノウ ヒョウカ エ ノ エイキョウ

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Abstract

The fluctuations of skatole and indole concentrations, which affect consumers' preferences of pork meat, were examined in 128 porcine fats and the sensitivity of some Japanese panelists to skatole was evaluated. Skatole concentrations in castrated and female pig back fats obtained from commercial markets were found to be in a range of 0.00 to 0.20 μg/g. In spite of such a considerable variation, the median skatole concentration was 0.02 μg/g, and most of the fats investigated contained low skatole. The median indole concentration was also low, 0.01 μg/g, and most of the fats investigated showed low indole concentration. The skatole concentration in back fats was not influenced by sex (castrated or female). There were strong positive correlations among the skatole concentrations of subcutaneous fats from different positions and between the skatole concentrations in back fats and intermuscular fats. The sensory evaluation suggested fat containing 0.10 μg/g or higher skatole could have a negative effect on pork meat quality.

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