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

2019 ◽  
Vol 31 (12) ◽  
pp. 2759-2762 ◽  
Author(s):  
Tran Thi Kim Ngan ◽  
Nguyen Cam Huong ◽  
Xuan Tien Le ◽  
Pham Quoc Long ◽  
Tran Quoc Toan ◽  
...  
Keyword(s):  
Essential Oil ◽  
Extraction Process ◽  
Rosmarinus Officinalis ◽  
Bornyl Acetate ◽  
Chemical Characteristics ◽  
Chemical Compositions ◽  
Physico Chemical ◽  
Cultivated Plant ◽  
Geographical Position ◽  
Rosmarinus Officinalis L

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.

scholarly journals Physico-chemical evaluation of Rosmarinus officinalis L. essential oils

2005 ◽  
Vol 48 (6) ◽  
pp. 1035-1039 ◽  
Author(s):  
Ana Cristina Atti-Santos ◽  
Marcelo Rossato ◽  
Gabriel Fernandes Pauletti ◽  
Luciana Duarte Rota ◽  
Juarez Ciro Rech ◽  
...  
Keyword(s):  
Steam Distillation ◽  
Optical Rotation ◽  
Volatile Oil ◽  
Rosmarinus Officinalis ◽  
Chemical Compositions ◽  
Chemical Parameters ◽  
Alpha Pinene ◽  
Chemical Evaluation ◽  
Physico Chemical ◽  
Rosmarinus Officinalis L

Nineteen samples of Rosmarinus officinalis were extracted by steam distillation in a pilot plant and evaluated in terms of chemical compositions and physico-chemical characteristics. The volatile oil yields ranged from 0.37% (1999 harvest) to 0.49% (1998 harvest). Twenty components were identified in the oils. The major components were alpha-pinene (40.55 to 45.10%), 1,8-cineole (17.40 to 19.35%), camphene (4.73 to 6.06%) and verbenone (2.32 to 3.86%). The physico-chemical parameters averaged 0.8887 g/cm³ for specific gravity, 1.4689 for refractive index, and +11.82° for optical rotation, and there were no significant variations in either the chemical or physico-chemical data in the different years.

scholarly journals Rosmarinus officinalis L.: Chemical Modifications of the Essential oil and Evaluation of Antioxidant and Antimicrobial Activity

2009 ◽  
Vol 4 (12) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Giorgio Pintore ◽  
Mauro Marchetti ◽  
Mario Chessa ◽  
Barbara Sechi ◽  
Nadia Scanu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Rosmarinus Officinalis ◽  
Hydrocarbon Fraction ◽  
Bornyl Acetate ◽  
Minimal Bactericidal Concentration ◽  
Aeromonas Sobria ◽  
Antioxidant And Antimicrobial Activity ◽  
Rosmarinus Officinalis L ◽  
Micro Organisms

Rosmarinus officinalis essential oil was separated into its hydrocarbon and oxygenated fractions. The major compounds in the hydrocarbon fraction were α-pinene (44.2%), camphene (24.5%), and limonene (11.7%), while in the oxygenated fraction they were 1,8-cineole (37.6%), camphor (16.5%), and bornyl acetate (21.4%). The hydrocarbon fraction was submitted to a hydroformylation process and the antioxidant activity of the product was screened by the DPPH and β-carotene/linoleic acid tests. The hydroformylated fraction maintained the antioxidant activity of the whole oil. The MIC (minimal inhibitory concentration) and the MBC (minimal bactericidal concentration) of the essential oil, hydrocarbon, oxygenated and hydroformylated fractions were also tested on several microorganisms. Aeromonas sobria and Candida strains were the most susceptible micro-organisms. The hydroformylated fraction exhibited a MBC against Candida strains resistant to the other fractions.

scholarly journals Effect of Salinity and Water Stress on the Essential Oil Components of Rosemary (Rosmarinus officinalis L.)

Agronomy ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 214 ◽  
Author(s):  
Radhia Sarmoum ◽  
Soumia Haid ◽  
Mohamed Biche ◽  
Zahreddine Djazouli ◽  
Bachar Zebib ◽  
...  
Keyword(s):  
Water Stress ◽  
Essential Oil ◽  
Volatile Compounds ◽  
Salt Water ◽  
Tap Water ◽  
Rosmarinus Officinalis ◽  
Bornyl Acetate ◽  
Oil Components ◽  
Rosmarinus Officinalis L ◽  
Water Treatments

The effect of salinity and water stresses on the essential oil components of Rosmarinus officinalis essential oil was investigated. Rosemary plants were submitted to different water treatments: tap water (TW), salt water (SW) and without irrigation (NIR). GC/MS analysis showed that ten and eleven volatile compounds were identified in essential oil of rosemary plants irrigated with tap water (TW) and salt water (SW), respectively. However, thirteen volatile compounds were identified in essential oil of non-irrigated plants (NIR). Moreover, among these compounds, α-Pinene, Eucalyptol (1,8 Cineol), Camphene, Borneol, D-verbenone, Bornyl acetate were the major components of oil. Also, GC/MS results highlighted that non-irrigated rosemary plants showed the highest essential oil yield (Y). Obtained oil yields followed the order YNIR > YTW > YSW. In conclusion, qualitative and quantitative differences in rosemary essential oil components were highlighted in relation to water stress.

scholarly journals The essential oil compositions of Rosmarinus officinalis L. leaves growing in Mersin, Turkey

2020 ◽  
Vol 11 (4) ◽  
pp. 370-376
Author(s):  
Gun Binzet ◽  
Riza Binzet ◽  
Hakan Arslan
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Volatile Oil ◽  
Rosmarinus Officinalis ◽  
Chemical Compositions ◽  
Sesquiterpene Hydrocarbons ◽  
Rosemary Oil ◽  
Rosmarinus Officinalis L

This study reports on the chemical compositions of the essential oil of Rosmarinus officinalis L. (Rosemary) grown in Mersin, Turkey. The essential oil of rosemary was obtained by hydrodistillation method, and the yield of rosemary oil was found to be about 1.2 % (v:w). The hydrodistilled volatile oil was analyzed by gas chromatography and mass spectrometry techniques. Forty-five components were identified in the essential oil of R. officinalis, which represented 100% of the total essential oils. The oxygenated monoterpenes content possessed the highest value, 64.78% of the oil, among which eucalyptol (33.15%) and camphor (10.31%) were the most abundant components. In addition, the oil contained mainly monoterpene hydrocarbons, sesquiterpene hydrocarbons, oxygenated sesquiterpenes, and diterpenes. The least amount of diterpenes were found in the content of the oil. Isopimara-9 (11),15-diene (0.14%) and α-springene (0.06%) were two compounds determined as diterpene compounds.

scholarly journals Seasonal Variation of Essential Oil in Rosmarinus officinalis Leaves in Sardinia

2019 ◽  
Vol 14 (7) ◽  
pp. 1934578X1986400 ◽  
Author(s):  
Sara Melito ◽  
Giacomo Luigi Petretto ◽  
Sarah Chahine ◽  
Giorgio Pintore ◽  
Mario Chessa
Keyword(s):  
Essential Oil ◽  
Mediterranean Area ◽  
Rosmarinus Officinalis ◽  
Bornyl Acetate ◽  
Food Ingredient ◽  
Flame Ionization ◽  
Mass Spectrometry Technique ◽  
Spectrometry Technique ◽  
Rosmarinus Officinalis L ◽  
Chemical Groups

Rosmarinus officinalis L. is an aromatic plant belonging to the Lamiaceae family widely distributed in the Mediterranean area. The interest on this species is related to the multiple uses of the plant as a food ingredient, in the pharmaceutical and cosmetic industries. The chemical composition of essential oil (EO) from 5 accessions of R. officinalis L., collected monthly through a full year in Sardinia, has been studied by gas chromatography (GC) and GC-mass spectrometry technique. The EO ranged from 0.29% to 0.89%. The qualitative determinations revealed the presence of 27 compounds belonging to 6 chemical groups (hydrocarbon monoterpene, alcohols, aldehydes, ketones, esters, hydrocarbon sesquiterpene). Overall the GC-flame ionization detector analysis showed the presence of 7 major compounds: α-pinene (26%-28%), camphene (5%-8%), 1,8-cineole (15%-25%), borneol (5%-11%), camphor (3%-12%), verbenone (6%-15%), and bornyl acetate (4%-7%). Chromatographic data were also subjected to a chemometric approach that evidenced discrimination of the samples according to the site of collection.

scholarly journals Evaluation of Physico-Chemical Properties of Lemongrass (Cymbopogon citratus L.) Essential Oil Grown in Tien Giang Province, Vietnam

2020 ◽  
Vol 32 (5) ◽  
pp. 1248-1250 ◽  
Author(s):  
Tan Phat Dao ◽  
Hoang Thang Do ◽  
Le Quang Khoi ◽  
Nguyen Van Gia Phap ◽  
Mai Huyng Cang ◽  
...  
Keyword(s):  
Essential Oil ◽  
Antibacterial Properties ◽  
Chemical Properties ◽  
Vital Role ◽  
Chemical Characteristics ◽  
Chemical Compositions ◽  
Chemical Parameters ◽  
Cymbopogon Citratus ◽  
Physico Chemical ◽  
Acid Index

The lemongrass (Cymbopogon citratus L.) essential oil plays a vital role as an ingredient in different fields due to aromatic, antibacterial properties and antifungal activity. In this study, essential oil of lemongrass was obtained using hydrodistillation method and evaluated for chemical compositions and physico-chemical characteristics. The averaged physico-chemical parameters were determined as specific gravity (0.8865 g/cm3), acid index (2.948), ester index (6.402) and refractive index (9.35). Moreover, the hydrodistillation process performance was achieved 0.29%. The composition of essential oils was analyzed by GC-MS, revealing a total of 18 volatile constituents existing in the lemongrass oil. The major components were α-citral (40.838%), β-citral (28.494%), β-myrcene (16.654%), 2,3-dehydro-1,8-cineole (2.264%) and geraniol (2.388%). The citral component accounts for high content (more than 70% of volume) of oil.

scholarly journals Physico-Chemical Profile of Essential oil of Kaffir Lime (Citrus hystrix DC) Grown in An Giang Province, Vietnam

2019 ◽  
Vol 31 (12) ◽  
pp. 2855-2858 ◽  
Author(s):  
Tran Thi Kim Ngan ◽  
Tran Thien Hien ◽  
Xuan Tien Le ◽  
Trieu Tuan Anh ◽  
Pham Minh Quan ◽  
...  
Keyword(s):  
Refractive Index ◽  
Essential Oil ◽  
Bornyl Acetate ◽  
Chemical Characteristics ◽  
Chemical Profile ◽  
Chemical Parameters ◽  
Food Industries ◽  
Physico Chemical ◽  
Lime Peel ◽  
Acid Index

In this study, kaffir lime peel was used for extraction of essential oil by hydrodistillation and evaluation of physico-chemical characteristics. The yield of essential oil was 1.8 %. The physico-chemical parameters averaged specific gravity (0.8587g/cm3), acid index (0.667 mg KOH/g), ester index (4.203 mg KOH/g), refractive index (1.469), rotator power +3. Twenty-three components were classified in kaffir lime peel oils. The result of GC-MS revealed that the oil is extremely rich in 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 %), bornyl acetate (4.065%). The aim of this study is to promote for further research on extraction enhancement and application of that constituents to cosmetics, medicine and food industries to enhance antioxidant and anti-bacterial capabilities create more useful formulations

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