1. 1) K. B. Guiseley: The relationship between methoxyl content and gelling temperature of agarose. Carbohydr. Res., 13, 247-256 (1970).
2. 2) S. Tagawa and Y. Kojima: The alkali-treatment of the mucilage of Gracilaria verrucosa. Proc. Int. Seaweed Symp., 7, 447-450 (1972).
3. 3) M. Watase and K. Nishinari: Rhelogical properties of agarose gels with different molecular weights. Rheol. Acta, 22, 580-587 (1983).
4. 4) J. W. Nicholson: The chemistry of polymers. Royal Society of Chemistry, Cambridge, 1991, pp. 100-102.
5. 5) C. Rochas and M. Lahaye: Average molecular weight and molecular weight distribution of agarose and agarose-type polysaccharides. Carbohydr. Polymers, 10, 289-298 (1989).