1. Department of Food Science and Nutrition, and Kimchi Research Institute, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan 609-735, Korea.
2. Department of Integrative Plant Science, Chung-Ang University, Seodong-daero 4726, Daedeok-myeon, Anseong 456-756, Korea.