1. T. Yasui, M. Sudo and T. Kobayashi, Abstracts of Papers, 22th Annual Meeting of the Society of Fermentation Technology, Japan, Osaka, November, 1970, p. 193.
2. G. N. Bollenback, “Method in Carbohydrate Chemistry,” Vol. II, ed. by R. L. Whistler and M. L. Wolfrom, Academic Press Inc., New York, N. Y., 1963, p. 326.
3. J. Conchie and G. A. Levvy, “Method in Carbohydrate Chemistry,” Vol. II, ed. by R. L. Whistler and M. L. Wolfrom, Academic Press Inc., New York, N. Y., 1963, p. 335.
4. N. K. Richtmyer,ibid., p. 193.
5. M. Tomoda, Private communication.