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http://dx.doi.org/10.5657/fas.2005.8.3.113

Effects of Hydrolysis Time on the Molecular Weight Distribution of Alginates Prepared from Sea Tangle Laminaria japonicus  

Lim Yeong-Seon (Department of Food Science, Kangnung National University)
You Byeong-Jin (Department of Food Science, Kangnung National University)
Publication Information
Fisheries and Aquatic Sciences / v.8, no.3, 2005 , pp. 113-117 More about this Journal
Abstract
To prepare oligouronic acids from high-molecular-weight alginates, sea tangle Laminaria japonicus alginates were hydrolyzed at $80^{\circ}C$ for various hydrolysis times (HT). The effects of hydrolysis time on the distribution ratios (DR) of the molecular weights (MW) of the hydrolyzed alginates were in-vestigated. As HT increased, the DR of the alginates with MW>500 kDa decreased ex-ponentially, while those with MW=50-100 kDa or MW<50 kDa increased exponentially. For MW=300-500 kDa, DR increased exponentially until HT reached 60 min, and then decreased exponentially. Similarly, for MW=100-300 kDa, DR increased exponentially until HT reached 90 min, and then decreased.
Keywords
Alginates; Molecular weight; Distribution ratio; Laminaria japonicus; Hydrolysis time;
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