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Sea algae consist mainly of 40~70% polysaccharides, 10~20% proteins, and residual low-molecular-weight compounds such as fatty acids, free amino acids, and amines1. While polysaccharides of sea algae such as algine, agar, and carageenin have been used traditionally
as food additive, sea algae cellulose has been little utilized. In sea algae, the content of cellulose is less than the water-soluble polysaccharides and highly crystallined structure of cellulose makes the cellulase-catalyzed hydrolysis reaction in aqueous media slow2-3.
Since the pretreatment process of sea algae plays an important role in effective conversion of sea algae polysaccharides to glucose by enzymatic hydrolysis. Microwave irradiation was used, in this study, for the pretreatment of sea algae, Ulva pertusa Kjellman. The effect of
pretreatment conditions on enzymatic hydrolysis of sea algae were investigated.