scholarly journals Shade level effects on yield and chemical composition of the leaf essential oil of Pothomorphe umbellata (L.) Miquel

2010 ◽  
Vol 67 (4) ◽  
pp. 414-418 ◽  
Author(s):  
Raquel Souza Mattana ◽  
Maria Aparecida Ribeiro Vieira ◽  
José Abramo Marchese ◽  
Lin Chau Ming ◽  
Márcia Ortiz Mayo Marques
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Aerial Part ◽  
Gas Chromatography Mass Spectrometry ◽  
Medicinal Species ◽  
Chemical Substances ◽  
Leaf Essential Oil ◽  
Essential Oil Yield

Pothomorphe umbellata (L.) Miquel, is a medicinal species that belong to the Piperaceae family and commonly called "pariparoba" and "caapeba". It grows in regions rich in humus, humidity and under the shade of trees, which contribute for its best growth as it is considered a species sciophyte. The effect of shade on the yield and chemical composition of essential oil of Pothomorphe umbellata (Piperaceae) leaves was evaluated. Nine-month-old seedlings were planted in October 2002 and subjected to three shade levels (30%, 50%, 70%) and full sun; the experimental design was in randomized blocks, with four treatments and six replications, in split-plot in time scheme. Two harvests of aerial part were made (05/2003 and 05/2004). Essential oil was extracted by hydrodistillation and chemically analyzed by gas chromatography-mass spectrometry (GC-MS). The highest essential oil yield was observed in the second harvest and plants under 30% shade. Twenty-six chemical substances were identified, of which trans-nerolidol was predominant.

scholarly journals Chemical composition and insecticidal activity of Garcinia gardneriana (Planchon & Triana) Zappi (Clusiaceae) essential oil

2021 ◽  
Vol 20 (5) ◽  
pp. 503-514
Author(s):  
Carla Maria Mariano Fernandez ◽  
◽  
Fabiana Brusco Lorenzetti ◽  
Sirlene Adriana Kleinubing ◽  
Joao Paulo Pinguello de Andrade ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Immersion Test ◽  
Acaricidal Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Larvicidal Effect ◽  
Sesquiterpene Hydrocarbons

The present study aimed to analyze the chemical composition of the essential oil from Garcinia gardneriana (Planchon & Triana) Zappi leaves and fruits, and to determine its acaricidal activity on Rhipicephalus microplus by larval packet test and larvicidal action on Aedes aegypti by larval immersion test. The chemical analysis of the essential oil by gas chromatography-mass spectrometry identified sesquiterpene hydrocarbons and oxygenated sesquiterpenes in bacupari leaves and fruits, and α-cedrene, α-chamigrene, α-trans-bergamotene, and β-curcumene as major compounds. Essential oil from leaves of G. gardneriana presented acaricidal activity on R. microplus (LC50 = 4.8 mg/mL; LC99 = 10.8 mg/mL) and larvicidal effect on A. aegypti (LC50 = 5.4 mg/mL; LC99 = 11.6 mg/mL), whereas essential oil from the fruits of G. gardneriana showed LC50 = 4.6 mg/mL and LC99 = 8.9 mg/mL against R. microplus and LC50 = 6.4 mg/mL and LC99 = 13.9 mg/mL against A. aegypti. These results thus demonstrate the potential acaricidal and larvicidal activity of essential oil of G. gardneriana, offering new perspectives for the realization of bioassays from this essential oil.

scholarly journals Chemical Composition, Enantiomeric Distribution, and Biological Activities of Rhododendron anthopogon Leaf Essential Oil from Nepal

2016 ◽  
Vol 11 (12) ◽  
pp. 1934578X1601101 ◽  
Author(s):  
Noura S. Dosoky ◽  
Prabodh Satyal ◽  
Suraj Pokharel ◽  
William N. Setzer
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Biological Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Cytotoxic Activities ◽  
Blood Disorders ◽  
Leaf Essential Oil ◽  
Microbroth Dilution

Rhododendron anthopogon D. Don., a small compact Himalayan shrub growing in Nepal, is a known medicinal plant used to treat sore throat, colds, blood disorders, bone disease, potato allergies, and vomiting, and to relieve liver disorders, headaches and back pain. The present study investigated the chemical composition and bioactivities of the leaf essential oil from R. anthopogon from Dhankuta, Nepal. The essential oil from leaves was obtained by hydrodistillation and a detailed chemical analysis was conducted by gas chromatography – mass spectrometry (GC-MS). The enantiomeric distribution of monoterpenoid components was determined using chiral gas chromatography and represents the first chiral examination of R. anthopogon essential oil. The essential oil was screened for antimicrobial activity using the microbroth dilution test, and for cytotoxic activity against MCF-7, MDA-MB-231, and 5637 using the MTT assay. A total of 70 volatile components were identified from the essential oil. The major components were α-pinene (21.5%), δ-cadinene (13.8%), β-pinene (9.5%), limonene (5.9%), δ-amorphene (4.6%), α-muurolene (4.5%), and ( E)-caryophyllene (3.2%) with other minor constituents (< 3%). The essential oil showed marginal antibacterial and cytotoxic activities, but no antifungal effects.

scholarly journals Chemical Composition of the Essential Oil of Croton bonplandianus from India

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

scholarly journals Contact Toxicity and Repellency of the Essential Oil from Bupleurum bicaule Helm against Two Stored Product Insects

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Xiao-Meng Wei ◽  
Shan-Shan Guo ◽  
Hua Yan ◽  
Xian-Long Cheng ◽  
Feng Wei ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Chemical Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Bornyl Acetate ◽  
Contact Toxicity ◽  
Lasioderma Serricorne ◽  
Stored Product Insects

Essential oils obtained from many plants showed various kinds of insecticidal properties; some of them have been considered as alternative insecticides for pest control. The present study was aimed at determining the chemical composition of the essential oil from the roots of Bupleurum bicaule Helm, as well as evaluating the contact and repellent activities of the oil and four identified compounds against Lasioderma serricorne and Liposcelis bostrychophila adults. The essential oil was extracted by hydrodistillation, and its components were analyzed by gas chromatography-mass spectrometry (GC-MS). 26 components were determined and the main compounds included trans-2-isopropylbicyclo[4.3.0]non-3-en-8-one (25.9%), 4,5-dimethyl-1,2,3,6,7,8,8a,8b-octahydrobiphenylene (23.5%), and 1,4-dimethoxy-2-tert-butylbenzene (4.3%). It was found that the essential oil exhibited contact toxicity against L. serricorne (LD50 = 11.91 μg/adult), but the contact toxicity against L. bostrychophila could not be observed. The essential oil also showed strong repellent activity against L. serricorne with percent repellency of 100% at 78.63 nl/cm2. Four chemical compounds, 1,4-dimethoxy-2-tert-butylbenzene, bornyl acetate, (2E,4E)-2,4-nonadienal, and β-bisabolene, exhibited various levels of bioactivities. The experimental results indicated that the essential oil of B. bicaule and its individual compounds could be used in insecticidal and repellent strategies for stored product insects.

Anti-termite and anti-fungal bio-sourced wood preservation ingredients from Dacryodes edulis (G. Don) H.J. Lam resin

Holzforschung ◽  
2020 ◽  
Vol 74 (8) ◽  
pp. 745-753
Author(s):  
Walter Fiacre Bédounguindzi ◽  
Kévin Candelier ◽  
Prosper Edou Engonga ◽  
Stéphane Dumarçay ◽  
Marie-France Thévenon ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Heavy Fraction ◽  
Wood Preservation ◽  
Gas Chromatography Mass Spectrometry ◽  
Wood Protection ◽  
Anti Fungal ◽  
Dacryodes Edulis

AbstractDacryodes edulis (G. Don) H.J. Lam resin was hydro-distilled to recover essential oil (EO), and further purified to produce a heavy fraction constituting less volatile compounds. Chemical composition was investigated by gas chromatography-mass spectrometry (GC-MS), and indicated that different monoterpenes and triterpenes were present depending on the analyzed fraction. Bioassays were performed on the different fractions to evaluate their anti-fungal and anti-termite properties. Results indicated that crude resin, its heavy fraction and its EO all had proved termicidal properties, which decrease on drying for EO and crude resin due to evaporation of monoterpenes. Conversely, no anti-fungal properties were observed for any fraction. Dacryodes edulis resin is therefore a new valuable bioactive ingredient for the formulation of wood protection products with anti-termite properties.

Chemical Composition of the Essential Oil From Minthostachys acris Schmidt-Leb. Grown in the Peruvian Andes

2019 ◽  
Vol 14 (7) ◽  
pp. 1934578X1985749
Author(s):  
Jorge A. Pino ◽  
María Milagros Dueñas-Mendoza ◽  
Leoncio Solís-Quispe
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Ionization Detector ◽  
Peruvian Andes ◽  
Flame Ionization ◽  
Aerial Parts

The chemical composition of the essential oil from aerial parts of Minthostachys acris Schmidt-Leb. grown in Cuzco was studied. A total of 59 volatile compounds were identified by gas-chromatography-flame ionization detector and gas chromatography-mass spectrometry in the essential oil obtained by steam distillation, of which the most prominent were pulegone (54.4%), cis-menthone (11.0%), and thymol (6.3%).

scholarly journals CHEMICAL COMPOSITION OF THE ESSENTIAL OIL FROM LEAVES OF CALLICARPA ARBOREA ROXB. GROWING IN VIETNAM

2021 ◽  
Vol 58 (6A) ◽  
pp. 280
Author(s):  
Hung Huy Nguyen ◽  
Dai Ngoc Do ◽  
Prabodh Satyal ◽  
Chung Thanh Nguyen ◽  
Nguyen Van Bui ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Chromatography Mass Spectrometry ◽  
First Time

The essential oil from the leaves of Callicarpa arborea Roxb. growing wild in Vietnam, was obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. The major constituents of leaves of C. arborea were β-selinene (23.9%), ar-turmerone (17.5%) and α-copaene (8.9%), with lesser concentrations of caryophyllene oxide (4.9%) and ar-turmerol (3.9%). The chemical composition of this essential oil sample is being reported for the first time.

scholarly journals Composition of Helichrysum thianschanicum Regel Essential Oil from Pamir (Tajikistan)

2018 ◽  
Vol 13 (1) ◽  
pp. 1934578X1801300
Author(s):  
Farukh S. Sharopov ◽  
Vasila A. Sulaymonova ◽  
Yanfang Sun ◽  
Sodik Numonov ◽  
Isomiddin S. Gulmurodov ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Chromatography Mass Spectrometry ◽  
Autonomous Province

Helichrysum thianschanicum Regel was collected from Khorugh town of Kuhistoni Badakhshon Autonomous Province of Tajikistan. The essential oil was obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. A total of 67 compounds were identified representing 88.4% of the total essential oil composition. The major components of H. thianschanicum essential oil were ( E)-1-(6,10-dimethylundec-5-en-2-yl)-4-methylbenzene (pentylcurcumene) (21.6%), β-selinene (6.4%), δ-selinene (3.8%), (2 E, 6 E)-farnesol (3.3%), nerol (4.1%) and neryl decanoate (4.2%). To our best knowledge, no previous studies have been reported on the chemical composition of the essential oil of H. thianschanicum.

scholarly journals Comparison of Chemical Composition between Kuromoji (Lindera umbellata) Essential Oil and Hydrosol and Determination of the Deodorizing Effect

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4195
Author(s):  
Naoki Nanashima ◽  
Maiko Kitajima ◽  
Shizuka Takamagi ◽  
Miyuki Fujioka ◽  
Toshiko Tomisawa
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Isovaleric Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Methyl Mercaptan ◽  
Foot Care

Kuromoji (Lindera umbellata) is a tree that grows throughout Japan. The components of kuromoji essential oil have antitumor and aromatherapy effects. However, the composition of the hydrosol, obtained as a by-product of the essential oil process, is unknown. Furthermore, it is unknown whether kuromoji essential oil has a deodorizing effect. Therefore, the purpose of the current study was to compare the chemical composition of kuromoji essential oil and hydrosol, as well as evaluate the deodorizing effect of the former. The chemical composition of samples was evaluated using gas chromatography–mass spectrometry (GC-MS). Additionally, the deodorizing effect of Kuromoji essential oil was investigated with the detector tube method using ammonia, hydrogen sulfide, methyl mercaptan, and isovaleric acid. Linalool was the most abundant component in both the essential oil and hydrosol; however, its proportion was higher in the hydrosol (57.5%) than in the essential oil (42.8%). The hydrosol contained fewer chemical components, but higher proportions of trans-geraniol and ethanol. Moreover, the essential oil eliminated 50% of ammonia and 97.6% or more of isovaleric acid. Interestingly, linalool was soluble in the hydrosol and did not irritate the skin. This suggests that the hydrosol may be an effective foot care product.

scholarly journals Chemical Composition and Antibacterial Activity of Pituranthos Chloranthus Volatile Oil

2007 ◽  
Vol 2 (11) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Mostepha Dahia ◽  
Hocine Laouer ◽  
Adel N. Chaker ◽  
Soizic Prado ◽  
Uwe J. Meierhenrich ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Volatile Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

The chemical composition of the essential oil of Pituranthos chloranthus ssp. cossonianus Maire (Apiaceae) was investigated by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) to reveal 54 compounds. The main constituents were myristicine (27.4%), limonene (15.8%), α-pinene (11.4%), and α-phellandrene (8.3%). The antibacterial activity of the oil was evaluated against several strains and was shown to be significant against Pseudomonas aeruginosa.

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