Terpenoid Compositions and Enantio-differentiation of Linalool and Sclareol in Salvia sclarea L. from Three Different Climatic Regions in India

Abstract

Salvia sclarea L. essential oil samples collected from three different climatic regions viz., Kashmir, Uttarakhand and Uttar Pradesh in India have been analyzed by capillary GC, enantio-GC and GC/MS. Linalool (23.6%), α-terpineol (3.8%), linalyl acetate (51.2%), β-caryophyllene (3.2%), germacrene D (1.3%) and sclareol (1.3%) were recorded in the oil S. sclarea cultivated in Lucknow UP while the Kashmir oil sample possessed the highest percentage of linalyl acetate (60.8%) and lowest linalool (14.5%) along with α-terpineol (1.8%), geranyl acetate (2.2%), β-caryophyllene (1.9%), germacrene D (2.6%) and sclareol (1.3%) as the other minor constituents. In contrast, the oil of S. sclarea from Purara in Uttarakhand showed highest percentage of linalool (29.8%), α-terpineol (5.3%) and sclareol (2.3%) and the lowest linalyl acetate (45.7%) among all the three samples. Further, high enantiomeric ratios ranged 76.8–79.5% for 3R-(-)-linalool and 78.8–99% for (-)-sclareol were determined on BETA DEX 110 capillary column.

Key Word Index:

• Salvia sclarea
• Lamiaceae
• essential oil composition
• linalyl acetate
• linalool
• enantiomeric distribution