1. Department of Life Science and Technology, Faculty of Engineering, Toua University, 2-1 Ichinomiya-gakuencho, Shimonoseki 751-8503, Japan, Department of Bioresource Chemistry, Obihiro University of Agriculture and Veterinary Medicine, Nishinisen Inadacho, Obihiro 080-8555, Japan, and Tokachi-Ikeda Research Institute for Viticulture and Enology, 83 Kiyomi, Ikeda 083-0002, Japan