Physico-Chemical Characteristics of Rosmarinus officinalis L. Essential Oils Grown in Lam Dong Province, Vietnam

Tran Thi Kim Ngan1,2, Nguyen Cam Huong3,4, Xuan Tien Le5, Pham Quoc Long4,6, Tran Quoc Toan4,6, Do Minh Hoang Vo7, Vo Thanh Danh8, Le Nguyen Yen Trung8 and Tuan Anh Trieu9,*

1NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam

2Center of Excellence for Biochemistry and Natural Products, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam

3Department of Food Technology, Ho Chi Minh City University of Food Industry, Ho Chi Minh City, Vietnam

4Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam

5Department of Chemical Engineering, HCMC University of Technology, VNU-HCM, Ho Chi Minh City, Vietnam

6Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, Hanoi, Vietnam

7Institute of Applied Materials Science, Vietnam Academy of Science and Technology, 01 TL29, District 12, Ho Chi Minh City, Vietnam

8BKU Institute of Advanced Applied Science and Technology (BKIST), Ho Chi Minh City, Vietnam

9Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam

*Corresponding author: E-mail: anhtt@ntt.edu.vn

Abstract

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.

Keywords

Rosmarinus officinalis L., Essential oils, GC-MS.

   View Article PDF File Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.