[1] Hokkaido Univ, Div Appl Biosci, Grad Sch Agr, Sapporo, Hokkaido 0608589, Japan
[2] Natl Inst Biomed Innovat, Tsukuba Div, Res Ctr Med Plant Resources, Tsukuba, Ibaraki 3050843, Japan
[3] Hyogo Univ, Dept Nutr Management, Fac Hlth Sci, Kakogawa 6750195, Japan