1. Biomass Production and Processing Research TeamNational Agricultural Research Center 3-1-1, Kannondai, Tsukuba 305-8666, Japan
2. Vegetable and Tea Function Research TeamNational Institute of Vegetable and Tea Science 2769, Kanaya, Shimada 428-8501, Japan
3. Research Strategy OfficeJapan International Research Center for Agricultural Sciences 1-1, Ohwashi, Tsukuba 305-8686, Japan