本物の食品の消費中にカプサイシンに繰り返し曝露される最小限の感受性
Paige M Cunningham1, John E Hayes2
1Sensory Evaluation Center, The Pennsylvania State University, USA; Department of Food Science, The Pennsylvania State University, USA; Department of Nutritional Sciences, The Pennsylvania State University, USA.
Physiology & behavior
|August 28, 2025
まとめ
カプサイシンという チリペッパーに含まれる化合物は 口内での炎症を引き起こし 実際の食品に繰り返し接触すると 炎症のレベルが上昇します これは以前の研究と異なるもので 燃焼が最適範囲を超えて強くなると好みが低下することを示唆しています
科学分野:
- 感覚科学
- 食品科学
- 人間の心理物理学
背景:
- 以前の研究によると,カプサイシン (TRPV1アゴニスト) は,モデルシステムでの繰り返し被曝で単調な経口燃焼感受性を引き起こす.
- 現実の世界での食生活は 灼熱感のパターンが異なることを示唆しています
- 自然主義的な食生活におけるカプサイシンの効果を理解することは,食品製品の開発にとって極めて重要です.
研究 の 目的:
- カプサイシンへの感受性および好みを,制御された環境で実際の食品 (チキン・ティッカ・マサラ) を使用して調査する.
- カプサイシン曝露に関する以前のモデル・システム研究と比較する.
- 口内での燃焼とヘドニック反応の経路を決定する.
主な方法:
- 75人の成人は 30秒毎にチキンティッカマサラの10個のサンプルを摂取しました
- 参加者は,一般的なラベリング・マグニチュード・スケール (gLMS) と一般的なバイポラー・ヘドニック・スケール (gHS) を用いて口腔の燃焼と好みを評価した.
- ランダム系数モデルで 繰り返し被曝と感覚評価の関係を分析した.
主要な成果:
- 口内燃焼は曲線状の二次軌道を示し,最初は増加し,その後は繰り返し被ばく (p < 0. 001, p = 0. 002) で平準化した.
- ヘドニック評価 (好意) は,各被曝度において著しく低下した (p = 0.01).
- 燃焼の強度と好みの軌道は異なるので 燃焼が最適なレベルを超えると好みが低下することを示唆しています
結論:
- モデルシステムで見られるような単調な増加ではなく,正方形の軌道を示しています.
- この研究は,カプサイシン感受性に関する制御された刺激と自然主義的な食体験の違いを強調しています.
- 感覚特有の飽和感や 嗜好に対する高燃焼の直接的な負の影響が 快楽性の低下を説明すると示唆されています
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