Volatile flower oils of three genotypes of rose-scented geranium (Pelargonium sp.)

✍ Scribed by B. R. Rajeswara Rao; K. P. Sastry; S. M. Saleem; E. V. S. Prakasa Rao; K. V. Syamasundar; S. Ramesh

• Book ID: 101281649
• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 95 KB
• Volume: 15
• Category: Article
• ISSN: 0882-5734
• DOI: 10.1002/(sici)1099-1026(200003/04)15:2<105::aid-ffj875>3.0.co;2-g

✦ Synopsis

The volatile ¯ower oils of three genotypes of rose-scented geranium (Pelargonium sp.) commercially cultivated at a high altitude (2200 m above MSL) location (Kodaikanal) in India were investigated by GC and GC±MS. Freshly collected ¯owers of genotypes 1, 2 and 3 on distillation produced oil yields of 0.32%, 0.34% and 0.50%, respectively. The ¯ower oil of genotype 1 was richer in a-pinene (1.7%), (Z) and (E)rose oxides (1.3% and 0.6%), isomenthone (6.8%), citronellol (43.8%), citronellyl formate (20.4%), citronellyl acetate (1.0%), b-caryophyllene (2.6%), citronellyl butyrate (2.1%) and citronellyl tiglate (1.9%). The ¯ower oil of genotype 2 was richer in terpinen-4-ol (1.3%), geranyl formate (3.6%), b-bourbonene (1.2%), a-muurolene (1.3%), geranyl isovalerate (0.9%), 10-epi-g-eudesmol (4.6%) and geranyl tiglate (2.9%). The ¯ower oil of genotype 3 was richer in linalol (7.6%), geraniol (38.6%), geranyl acetate geranic acid (5.2%), b-phenylethyl butyrate (4.6%), 6,9-guaiadiene (2.3%) and a-humulene (1.5%).