Provided are: a 3,5-dihydroxy-2-menthenyl stilbene represented by structural formula (1)； an extract from a plant in the Lindera genus, said extract containing at least 1% by mass of the 3,5-dihydroxy-2-menthenyl stilbene； applications for the 3,5-dihydroxy-2-menthenyl stilbene, such as an antimicrobial agent using same as an active ingredient； and a method for collecting the active ingredient from Lindera sp. Also provided are: a mixture comprising the substance represented by formula (1) and the 3,5-dihydroxy stilbene represented by formula (2)； an extract from Lindera sp., said extract containing at least 1% by mass of the aforementioned mixture； and applications for said mixture, such as an odor-production inhibitor using same as an active ingredient.
