“…Among several phytochemicals, eugenol and methyl eugenol are regularly reported as the prominent volatile organic compounds (VOCs) accumulated in holy basil (Tangpao et al, 2018;Chutimanukul et al, 2022b;Wongpraneekul et al, 2022), and which vary according to cultivar (Kothari et al, 2004;Renu et al, 2014;Piras et al, 2018). Eugenol is well known for its diverse applications such as antiseptic and antibacterial agent, antifungal, anti-inflammatory, antioxidant, antipyretic, cough, phlegm, chest congestion, diarrhea and used in for foods and teas (Gürbüz and Korkmaz, 2022;Sharma et al, 2022). Methyl eugenol is produced from eugenol by methylation in phenylpropanoid biosynthesis pathway and can be found naturally in many in many types of plants (Lewinsohn et al, 2000).…”