인공 광배양 스피룰리나(Spirulina platensis)의 생리활성 성분 및 항산화 특성

Abstract

The quality and efficacy of spirulina (Spirulina platensis) varies depending on the culturing conditions, such as the environment in which it is grown and the region where it is produced. In this study, the antioxidant properties and effective components of artificial light-cultured spirulina (ALS) and natural sunlight-cultured spirulina (NSS) were compared. Chromaticity analysis showed that ALS was darker and had a browner color than NSS. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activities of ALS were 379.08 μg gallic acid equivalent (GAE)/g and 2,602.55 μg ascorbic acid equivalent (AAE)/g, respectively, which are approximately 2 and 3 times higher than NSS. The total polyphenol and flavonoid contents of ALS were 5.21 mg GAE/g and 10.79 mg quercetin equivalent (QE)/g, respectively, which are about 8 times and 1.4 times higher than NSS. The total phycocyanin content was 1,040.47 μg/g in ALS, which was 1.2 times higher than that in NSS. The C-phycocyanin content was significantly higher in the NSS than in ALS (p<0.01), while the allophycocyanin and phycoerythrin contents were higher in ALS than NSS (p<0.001). There were no significant differences in the phylloquinone contents between ALS and NSS. However, NSS was significantly higher than ALS in both vitamins B9 and B12. Overall, ALS showed higher antioxidant properties and functional phycocyanin content.