미생물을 이용한 미역줄기에서 알긴산염 추출 및 저분자화

Abstract

We studied a extraction and degradation of alginate from seaweed-stems using microorganism DS-02. DS-02 has a maximum growth rate at <TEX>$30^{\circ}C$</TEX> and the enzyme has a maximum activity of alginate extraction at <TEX>$35^{\circ}C.$</TEX> The yield of alginate extraction using DS-02 is about <TEX>$16.0{\%}$</TEX> for 3.0 hour and molecular weight of the alginate decreased to about 1/8 of initial value after 24 hour extraction. Alginate extraction method by DS-02, compared with general alkali-extraction method, has an advantage of decreasing the molecular weight of alginate during extraction.