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Appetite-enhancing effects of vanilla flavours such as vanillin

Abstract

Vanilla flavour is familiar to consumers through foods, cosmetics, household products and some medicines. Vanilla flavouring agents typically contain vanillin or its analogue ethyl vanillin. Our previous study revealed that the inhalation of eugenol, which contains a vanillyl group, has an appetite-enhancing effect, and the inhalation of aroma compounds containing the vanillyl group or its analogues led to increased food intake in mice. Here, we found that vanillin, ethyl vanillin and eugenol showed appetite-enhancing effects, whereas isoeugenol and safrole did not. These results suggest that the appetite-enhancing effects could be attributable to the vanillyl group and could be affected by the position of the double bond in the aliphatic chain. Furthermore, the results of intraperitoneal administration of eugenol and vanillin suggest that their appetite-enhancing effects could occur via stimulation of olfactory receptors.

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Correspondence to Osamu Morinaga.

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Ogawa, K., Tashima, A., Sadakata, M. et al. Appetite-enhancing effects of vanilla flavours such as vanillin. J Nat Med 72, 798–802 (2018). https://doi.org/10.1007/s11418-018-1206-x

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Keywords

  • Vanilla flavouring agents
  • Appetite-enhancing effects
  • Inhalation