Preparation of Bio-degradable Films Using Various Marine Algae Powder

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