Preparation of Bio-degradable Films Using Various Marine Algae Powder

해조분말을 이용한 생분해성 필름의 제조

  • Rhim, Jong-Whan (Department of Food Engineering, Mokpo National University) ;
  • Kim, Ji-Hye (Department of Food Engineering, Mokpo National University)
  • 임종환 (목포대학교 식품공학과) ;
  • 김지혜 (목포대학교 식품공학과)
  • Published : 2004.02.28

Abstract

'Mixing' and 'immersion' $CaCl_{2}$ treatment methods were tested for preparation of bio-degradable films using powders of sea mustard (Undaria pinnatifida) (leaf, stem, and sphorophyll), sweet tanlge (Laminaria japonica), and fusiforme (Hizikia fusiforme) by extracting alginate through acid-alkali extraction method. Except fusiforme powder, flexible, free-standing films were produced by both methods using all marine algae powders tested. Except water solubility (WS), surface color, tensile strength (TS), elongation at break (E), and water vapor permeability (WVP) did not show distinct difference between $CaCl_{2}$, treatment methods. Although TS, WVP, and WS of marine algae powder films were lower than those of alginate films, they indicate potential in application as a new source of bio-degradable packaging materials.

Keywords

bio-degradable films;marine algae powder;sea mustard;sweet tangle;fusiforme;$CaCl_{2}$ treatment

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