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The essential oils of Ocimum canum Sims (basilic camphor) and Ocimum urticifolia Roth from Zimbabwe
Author(s) -
Chagonda Lameck S.,
Makanda Christopher D.,
Chalchat JeanClaude
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(200001/02)15:1<23::aid-ffj866>3.0.co;2-w
Subject(s) - camphor , camphene , chemistry , essential oil , eugenol , steam distillation , limonene , methyl eugenol , caryophyllene , botany , ocimum , linalool , safrole , traditional medicine , food science , organic chemistry , chromatography , medicine , pest analysis , biology , tephritidae
Plant materials from Ocimum canum Sims (basilic camphor) and Ocimum urticifolia Roth (Labiatae) from Zimbabwe were collected from the wild and steam‐distilled or hydrodistilled. The O. canum oil contained 25% (w/w) of precipitated camphor and the decamphorated oil contained camphor (39.5–39.8%), limonene (24.4–25.1%), β‐caryophyllene (7.0–7.2%), camphene (6.5–6.7%) and estragole (6.4–6.6%) as the major components. The oil obtained from air‐dried plant material contained camphor (57.6%), limonene (16.3%), β‐caryophyllene (6.4%) and camphene (5.4%) as the main components. The oil obtained by steam distillation of the fresh and air‐dried plant material from O. urticifolia contained α‐farnesenes (8.1–21.7%), linalol (4.9–19.7%), β‐ocimenes (6.5–15.2%), eugenol (2.3–20.0%), elemicine (1.3–12.5%), camphor (1.4–11.7%) and β‐elemene/β‐caryophyllene (11.8–15.8%) as the major components, whilst oil from the hydrodistilled plant material contained linalol (23.2%), β‐elemene/β‐caryophyllene (11.7%), α‐farnesenes (12.2%) and elemicine (7.1%) as the major components. Plants belonging to the family Labiatae are chief sources of essential oils and offer potential for cultivation in rural agriculture. Neither species has been previously reported from Zimbabwe. Copyright © 2000 John Wiley & Sons, Ltd.