Antioxidant Activities and Functional Components of Some Rose Flower Cultivars
2019
Choi, S.Y., Chungbuk National University, Cheongju, Republic of Korea | Kim, M.Y., Chungbuk National University, Cheongju, Republic of Korea | Lee, Y.J., Chungbuk National University, Cheongju, Republic of Korea | Choi, E.K., Chungbuk National University, Cheongju, Republic of Korea | Kim, Y.B., Chungbuk National University, Cheongju, Republic of Korea | Lee, J., Chungbuk National University, Cheongju, Republic of Korea | Jeong, H.S., Chungbuk National University, Cheongju, Republic of Korea
This study examined the functional components and antioxidant activities of four different rose flower (Colorado, Onnuri, platyphylla Thory, and Icewing cultivars) extracts to promote the value of edible flowers as new agricultural products. platyphylla Thory showed the highest total polyphenol and flavonoid contents 93.59 mg gallic acid equivalent (GAE)/g and 9.12 mg catechin equivalent (CE)/g, respectively and Icewing showed the lowest 62.76 mg GAE/g and 2.72 mg CE/g, respectively. The 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) and 1,1-diphenyl-2-picrylhydrazyl radical scavenging activities were high in Colorado at 0.45 and 0.52 mg ascorbic acid equivalent/mg, respectively. The phenolic acid compounds showed the highest value of 3.13 mg/g in platyphylla Thory. The anthocyanin content was as high as 8.58 mg/L in the platyphylla Thory but was not detected in Icewing. The proanthocyanidins contents in Colorado and platyphylla Thory cultivars were 1.82 and 2.50 mg CE/g, respectively but they were not detected in Onnuri and Icewing. These results suggest that the antioxidant activity and anthocyanin content of platyphylla Thory are high and they can be applied as a food material.
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