Akademik Veri Yönetim Sistemi
12th AGEAN ANALYTICAL OCTOBER 19-22, 2023 ANALYTICAL CHEMISTRY CONGRESS, İstanbul, Türkiye, 19 Ekim - 22 Kasım 2023, ss.36
Alginate, one of the most common biopolymers found in nature, is especially popular in the field of packaging due to its advantages such as economic accessibility and processability [1 3]. In this study, research on the production of alginate based packagi ng materials with high economic potential will be presented. Brown algae collected from various regions were transformed into sodium alginate using the alkaline method and examined in detail by 1 H NMR and FTIR. Rheological properties, such as viscosity η o f sodium alginate solutions and film formation of calcium alginate, were studied using an oscillatory rheometer. Subsequently, the frequency dependent elastic G’G’, viscous modulus G’’ and loss factor δ values of the films formed between the cone and plate geometries (the cone is 40 mm in diameter, with an angle of 4°) were examined. The water absorption and drying profiles of the prepared films were examined in various salt solutions. The mechanical pro perties of the films during tear and rupture tests were examined with uniaxial tensile tests. In addition, within the scope of this study, the light transmittance properties of the films were examined and their suitability for use as packaging materials was discussed.