Terpenes Composed of 5-carbon isopentyl groups. Isolated from plants'essential oils. C:H ratio of 5:8,or close to that. Pleasant taste or fragrant aroma. 。Examples: >Anise oil >Bay leaves => Chapter 25 21Chapter 25 21 Terpenes • Composed of 5-carbon isopentyl groups. • Isolated from plants’ essential oils. • C:H ratio of 5:8, or close to that. • Pleasant taste or fragrant aroma. • Examples: ➢Anise oil ➢Bay leaves =>