Salvia officinalis L.

The book investigates the variations in polyphenols and essential oils of Salvia officinalis based on diurnal and seasonal factors. Through chromatographic analysis, it reveals that the chemical composition of sage essential oil, primarily dominated by -thujone or camphor, varies with harvest timing. Methanolic extracts show a high presence of rosmarinic acid, exhibiting significant antioxidant properties. Additionally, the essential oil demonstrates antifungal activity against specific pathogens and repellent effects on pests, while the methanolic extract also shows antiappetent effects.