1. ; Processing Development Research Laboratories; Kao Corporation; 20, Higashi Fukashiba, Kamisumachi, Kashima-gun 314-0103 Ibaraki Japan
2. ; Health Care Products Research Laboratories; Kao Corporation; 131-8501 Tokyo Japan
3. ; Department of Bioscience and Biotechnology, Faculty of Engineering; Okayama University; 700-8530 Okayama Japan