Extraction of essential oil from rose (Rosa centrifolia) using hydro-steam distillation and solvent extraction /
by Camille Joy V. Capupus
- Indang, Cavite : Cavite State University- Main Campus, 2000.
- xiv, 52 pages : illustrations ; 28 cm.
Applied Research IV (General Science Curriculum) Cavite State University
Includes bibliographical references.
Science High School, College of Education (CED) Science High School, College of Education (CED)
CAPUPUS, CAMILLE JOY V., DARIA, EMILYN A., MARTONITO, GLENDA JOY N., MOJICA, GLECIE ANN R. Applied Research III (General Science Curriculum) Cavite State University, Indang, Cavite, March 2000 “EXTRACTION OF ESSENTIAL OIL FROM ROSE (Rosa centifolia) USING HYDRO-STEAM DISTILLATION AND SOLVENT EXTRACTION”. Adviser: Prof. Gliceria Masicap
The study “Extraction of Essential Oil From Rose (Rosa centifolia) Using Hydro-steam Distillation and Solvent Extraction” was done to determine the possibility of extracting essential oil using two processes. The objectives of the study were to determine which process between hydro-steam distillation and solvent extraction will give high percentage yield of oil; determine the physical and chemical properties of the extracted essential oils and identify the chemical composition of the oils extracted from the two processes.
Two and a half kilograms of samples were separated into 1.5:1 ratios and was subjected into hydro-steam distillation and solvent extraction processes. Water and ethyl alcohol were used as solvents for the two processes, respectively.
Hydro-steam distillation gave a higher percentage yield that is 0.505% than solvent extraction that yielded 0.405%.
The oils extracted from hydro-steam distillation and solvent extraction were tested for its physical properties. The following results were obtained: both oils were light colored and transparent liquids with floral scent, the specific gravity were 0.7927 and 0.7051, respectively. Both oils showed solubility in 1.5 ml of alcohol and the refractive indices were 1.4100 and 1.4120, respectively.
Chemical tests were also done to the oil obtained from hydro-steam distillation and solvent extraction. It showed that the acid values were 5.91 and 5.76, respectively, while the ester values were 9.97 and 5.30, respectively.
Thin-layer chromatographic analysis showed the presence of six spots for oil extracted from hydro-steam distillation and five spots for oil from solvent extraction.
From Rf values, citronellal and citronellol were identified, Other spots observed cannot be identified using the standards.
Based on the findings, solvent extraction can be considered the better process of extracting oil from rose. Therefore, oil can be extracted from rose petals using hydro-steam distillation and solvent extraction.