Antioxidant Activity and Phenolic Compound of Rosemary Under Artificial LED Lights

초록

Rosemary (Salvia rosmarinus (L.)) is an herb associated with various pharmacological benefits and exhibits antioxidant effects contributing to improved health. This study aimed to investigate the impact of different LED light conditions on the biological activity of rosemary, with a focus on enhancing its functional properties for agricultural applications. The aerial parts of rosemary grown under red light exhibited the highest growth rate. Additionally, the highest 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2 '-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activities (87.72 +/- 0.60% and 17.16 +/- 0.65%, respectively) were detected in the red light-treated group rather than in the other treatment groups. Comparably, red light treatment induced the highest total phenolic and total flavonoid contents, measuring 126.72 +/- 1.47 mg center dot GAE/g and 21.02 +/- 1.61 mg center dot QE/g, respectively, in rosemary. High-performance liquid chromatography revealed that rosmarinic acid was the predominant phenolic compound in the aerial parts of rosemary grown under red light. These findings suggest that optimizing light conditions can be an effective strategy for improving the functional properties of rosemary, providing insights into its potential application in smart farming and sustainable agricultural practices.

키워드