| Autor: |
Emin, Nuray, Yılmaz, Emre, Yazar, Havva, Özdemir, Samet |
| Předmět: |
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| Zdroj: |
International Joint Science Congress of Materials & Polymers; 2019, p35-37, 3p |
| Abstrakt: |
Algae are creatures with photosynthetic pigments that play a critical role in aquatic ecosystems. Especially brown and red algae contain important compounds such as agar, carrageenan and alginate, which are very important in industry and biotechnology. Sodium alginate, one of the varieties of alginic acid, is obtained from the cell wall of the algae and is the most common type of alginate used commercially. In this study, it wasaimed to obtain high purity alginic acid sodium salt from Cystoseira barbata type brown algae collected from the coa sts of Kastamonu province İnebolu district and to investigate the effectiveness of its uses as a biomaterial for tissue engineering applications. In this context firstly, different formaldehyde concentrations were tested du ring isolation of alginate from brown algae. In addition, changes in purity ratio and color tone were observed according to the number of repetitions of the purification process. The chemical structure of the alginate obtained was evaluated with FTIR analysis by the comparison with the commercially available high purification sodium alginate. Finally isolated alginate was tested for ability of forming different shapes in biomaterial productions. According to the results, higher purity but lower yield (23%) sodium alginate was obtained by using high concentration formaldehyde. It was observed that the purity ratio of sodium alginate increased as the number of repetitions of the purification step carried out by re-precipitation from solution increased, and the color tone turned from brown to light yellow. However, it was found that there was a decrease in yield contrary to increasing purity ratio. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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