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Volatile flower oils of three genotypes of rose‐scented geranium ( Pelargonium sp.)
Author(s) -
Rajeswara Rao B. R.,
Sastry K. P.,
Saleem S. M.,
Prakasa Rao E. V. S.,
Syamasundar K. V.,
Ramesh S.
Publication year - 2000
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/(sici)1099-1026(200003/04)15:2<105::aid-ffj875>3.0.co;2-g
Subject(s) - geraniol , citronellol , geranyl acetate , chemistry , isovalerate , geranium , botany , essential oil , geraniaceae , humulene , horticulture , food science , traditional medicine , biology , butyrate , fermentation , medicine , cultivar
The volatile flower 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 flowers of genotypes 1, 2 and 3 on distillation produced oil yields of 0.32%, 0.34% and 0.50%, respectively. The flower oil of genotype 1 was richer in α‐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%), β‐caryophyllene (2.6%), citronellyl butyrate (2.1%) and citronellyl tiglate (1.9%). The flower oil of genotype 2 was richer in terpinen‐4‐ol (1.3%), geranyl formate (3.6%), β‐bourbonene (1.2%), α‐muurolene (1.3%), geranyl isovalerate (0.9%), 10‐epi‐γ‐eudesmol (4.6%) and geranyl tiglate (2.9%). The flower oil of genotype 3 was richer in linalol (7.6%), geraniol (38.6%), geranyl acetate+geranic acid (5.2%), β‐phenylethyl butyrate (4.6%), 6,9‐guaiadiene (2.3%) and α‐humulene (1.5%). Copyright © 2000 John Wiley & Sons, Ltd.