Antioxidant Properties and Element Levels of two Commercial Arthrospira Strains
Bildiriler > Özet Bildiri · 2021
Yazarlar: Edis KORU, MELİS YILMAZ, GÜLEN TÜRKER, İLKNUR AK
12th International Phycological Congress - IPC2021, Şili, Puerto Montta, Uluslararası, Poster, Özet Bildiri, 2021-2021, Biological Abstracts, cilt 60, ss 132-133
DOI: 10.1080/00318884.2021.1922050
Özet
<p>This study aimed to determine the total phenolic, flavonoid contents, mineral contents of Arthrospira platensis and Arthrospira maxima, and the effects of extraction solvents on their free radical scavenging activities. Water, phosphate buffer (pH 7.5), ethanol, acetone, and ethyl acetate were used for extraction. DPPH free radical-scavenging assay was used to determine the best extraction solvent for antioxidant activity.</p><p>The total phenolic and total flavonoid contents of groups were measured according to Djeridane et al. (2006) and Quettier-Deleu et al. (2000). The element compositions of examples were determined analyzed via ICP-AES (Nordisk Metodikkomité for Næringsmidler, 2007). The highest antioxidant activity was determined in phosphate buffer for A. platensis and water for A. platensis with low IC50 values. The lowest flavonoid content in A. platensis was determined used acetone and phosphate-buffer groups (p≤0.05). The highest flavonoid content was found in water used as solvents in A. maxima (p≤0.05). The highest value of total phenolic content was found in the phosphate buffer group for A. platensis and the acetone group for A. maxima (p≤0.05). According to the element evaluations, it was determined that all values were below the limits of the FAO (Food and Agriculture Organization) and WHO (World Health Organization) for human consumption. However, it was determined that the Na content of A. platensis was higher than that of A. maxima, while the P, K, and Fe values were low.</p>