한국수산과학회

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  • pISSN : 2234-8395
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  • eISSN : 2234-1757

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kfas, vol. 51, no. 5, pp.542-548, October, 2018
DOI. https://doi.org/10.5657/KFAS.2018.0542

Effects of Average Molecular Weights, their Concentrations, Ca++ and
Mg++ on Hydrophobicity of Solution of Na-Alginates Prepared from Sea
Tangle Saccharina japonicus Produced in East Coast of Korea
평균분자량, 농도, 칼슘 및 마그네슘 이온이 동해안 다시마(Saccharina
japonicus
) Na-alginates의 소수성에 미치는 영향

임영선·유병진*
강릉원주대학교 식품영양학과

We investigated the effects of Na-alginates’s average molecular weight (AMW), their concentrations and divalent
metal ions on hydrophobic interaction of solution of Na-alginates in sea tangle produced Saccharina japonicus in East
Coast of Korea. As the AMWs of Na-alginates decreased, the formations rates of hydrophobic micro domains and
pre-micelles between intermoleculars of Na-alginates were increased. The pre-micelles between Na-alginates chains
fully were formed when their concentrations reached 0.2%. In the effects of Ca++ and Mg++ on the hydrophobicity of
Na-alginates solution, when the AMWs of Na-alginates were increased, the formation rates of hydrophobic micro
domains produced by Ca++ and Mg++ in alginates chains were increased. When Ca++ and Mg++ concentrations that
were needed to form gels of alginates solutions were insufficient, the formations of pre-micelle in alginates having
large AMW were more incomplete than those of small AMW. In the increasing range from 0.01 to 0.1 mM in divalent
metal ion concentration, the formation rate of pre-micelle in alginates solution added Ca++ were more faster than that
of Mg++.

Keyword : Key words: Na-alginates, Pyrene, Hydrophobic microdomains, Pre-micelle, Ca++ and Mg++

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