| abstract |
A highly safe β-secretase inhibitor, a food and drink containing the β-secretase inhibitor, and an inhibition rate measuring method for accurately measuring the inhibitory activity rate. SOLUTION: Crested cypress, Katsura, Shozuk, Onisalvia, Empizubixin, Bergamot, Centifolia rose, Damask rose, Scarlet wing, Koitsujitsu, Dutch honeybee, Tarragon, Daidai, Cumin, Bay, Western cedar, Geranium, Vetiver, Tadget, Patchouli , A β-secretase inhibitor comprising an essential oil extracted from at least one raw material of Amiris, Sokei, Shobu, Davana, Nanyo Sanroku, Nigera. [Selection] Figure 1 |