Open AccessPhysico-Chemical Characteristics of Rosmarinus officinalis L. Essential Oils Grown in Lam Dong Province, Vietnam
Author(s) -
Trần Thị Ngân,
Nguyen Cam Huong,
Xuan Tien Le,
Phạm Quốc Long,
Trần Quốc Toàn,
Do Minh Hoang Vo,
Vo Thanh Danh,
Le Nguyen Yen Trung,
Tuan Anh Trieu
Publication year - 2019
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2019.22166
Subject(s) - rosmarinus , camphene , borneol , chemistry , camphor , essential oil , eucalyptol , officinalis , chemical composition , botany , traditional medicine , food science , organic chemistry , biology , medicine , alternative medicine , traditional chinese medicine , pathology
Composition of rosemary essential oil largely depends on the geographical position of the cultivated plant and conditions of the extraction process. In this study, fresh rosemary leaves were used for extraction of essential oil by hydrodistillation and evaluation of chemical compositions and physico-chemical characteristics of the obtained oil were performed. The yield of essential oil was 1.0 %. The physico-chemical parameters showed specific gravity (0.8978 g/cm3), acid index (1.122 mg KOH/g), ester index (15.708 mg KOH/g) and refractive index (1.464). Twenty three components were identified in Rosmarinus officinalis L. oil. The major components were α-pinene (35.54 %), eucalyptol (20.902 %), camphene (4.384 %), bicyclo[3.1.1]hept-3-en-2-one (7.794 %), caryophyllene (1.225 %), endo-borneol (4.147 %) and bornyl acetate (4.065 %). Present study unveiled differences in the chemical composition of Vietnamese rosemary oil comparing with similar studies carried out in other countries.