scholarly journals Influence of storage time and temperature on the chemical composition of the essential oil of Hyptis pectinata L. Poit

2016 ◽  
Vol 18 (1 suppl 1) ◽  
pp. 336-340 ◽  
Author(s):  
A.S. JESUS ◽  
A.F. BLANK ◽  
M.F. ALVES ◽  
M.F. ARRIGONI-BLANK ◽  
R.N. LIMA ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Storage Temperature ◽  
Chemical Constituents ◽  
Caryophyllene Oxide ◽  
Germacrene D ◽  
Different Temperatures ◽  
Two Temperatures ◽  
Medicinal Properties ◽  
One Year

ABSTRACT Hyptis pectinata, popularly known as “sambacaitá”, is a native medicinal herb used by local people for treating disease. Its pharmacological, antimicrobial, and medicinal properties have been reported in several studies. The essential oil of the leaves is rich in terpene compounds responsible for its properties. Because there are factors that can influence the chemical composition of essential oils, the objective of this study was to evaluate the influence of storage on Hyptis pectinata essential oil for 360 days at two different temperatures. The essential oil was distilled from dried leaves of seven-month-old plants using the hydrodistillation method, and the chemical composition was determined using GC-MS and GC/FID. The effects of storage on the essential oil Hyptis pectinata were tested over the course of a year (0, 15, 30, 60, 90, 120, 150, 180, 240, 300, and 360 days), using two temperatures: room (±32ºC) and freezer (-20ºC). The predominant compounds in the essential oil are β–caryophyllene, caryophyllene oxide, and germancrene D. The concentration of the chemical constituents of the essential oil varied depending on the storage temperature, and over the 360 days. The storage of the essential oil at room temperature over one year resulted in higher concentrations of β-elemene, α-copaene, germacrene D, caryophyllene oxide, and (E,E)-α-farnesene and lower content of α-humulene and β-caryophyllene, compared to the results obtained from storing the essential oil in a freezer. These results indicate that the essential oil should be stored in a freezer, which provides greater stability to the concentration of the chemical constituents.

scholarly journals Essential oil constituents of needles, dry needles, inflorescences and resins of Pinus caribaea Morelet growing in Bangladesh

1970 ◽  
Vol 37 (2) ◽  
pp. 211-212 ◽  
Author(s):  
Jasim Uddin Chowdhury ◽  
Md Nazrul Islam Bhuiyan ◽  
Nemai Chandra Nandi
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Key Words ◽  
Chemical Constituents ◽  
Caryophyllene Oxide ◽  
Pinus Caribaea ◽  
Germacrene D ◽  
Pinus Caribaea Morelet

Essential oils obtained by hydrodistillation from needles, dry needles, inflorescences and resin of Pinus caribaea Morelet were analyzed by GC-MS. Seven chemical constituents in oil of needles, 13 in dry needles, 4 in inflorescences and 6 in resin were identified. The major constituents found in the needle oil are limonene, caryophyllene and germacrene D in the dry needle oil limonene, caryophyllene oxide and caryophyllene in the inflorescences oil caryophyllene oxide, limonene and crypton and in the resin oil bicyclo[3.1.1]hept -2-ene, 2,6,6- trimethyl- (52.82%), longifolen, crypton and β-pinene. Key words: Pinus caribaea, Chemical composition, Essential oil, GC-MS doi:10.3329/bjb.v37i2.1735 Bangladesh J. Bot. 37(2): 211-212, 2008 (December)

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 Chemical composition of essential oil extracted from leaves of Campomanesia adamantium subjected to different hydrodistillation times

2017 ◽  
Vol 47 (1) ◽  
Author(s):  
Juliana Dantas de Oliveira ◽  
Daniely Karen Matias Alves ◽  
Mayker Lazaro Dantas Miranda ◽  
José Milton Alves ◽  
Marcelo Nogueira Xavier ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Chemical Constituents ◽  
Caryophyllene Oxide ◽  
Fruit Species ◽  
Randomized Design ◽  
Completely Randomized Design

ABSTRACT: Campomanesia adamantium is a native fruit species of the Cerrado and is used in food and medicines and as bee pasture. The chemical composition of essential oils obtained from plants of the same species have varying constituent proportions due to the influence of extractive factors, environmental, genetic and ontogenetic. This study aimed to identify the influence of hydrodistillation time on the content and chemical composition of essential oil extracted from the leaves of C. adamantium . Treatments consisted of five extraction times (1, 2, 3, 4, and 5h) using Clevenger with five replications in a completely randomized design. It was observed that after two hours of hydrodistillation, the essential oil content remains constant. Regarding the chemical constituents of essential oil, variation of the proportions of the compounds tested occurred at all hydrodistillation times. The compounds spathulenol oxygenated sesquiterpenes and caryophyllene oxide were the majority in the five hydrodistillation times.

scholarly journals Essential Oil Content and Chemical Composition in 14 Selected Species From a Stretch of Restinga in Southern Brazil

2021 ◽  
Vol 13 (11) ◽  
pp. 23
Author(s):  
Teomar Duarte da Silva ◽  
Michele Trombin de Souza ◽  
Mireli Trombin de Souza ◽  
Roger Raupp Cipriano ◽  
Humberto Ribeiro Bizzo ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Oil Content ◽  
Chemical Constituents ◽  
Caryophyllene Oxide ◽  
Southern Brazil ◽  
The Common ◽  
Cortaderia Selloana ◽  
Herb Species

The restinga is an Atlantic Forest ecosystem characterized by tree, shrub, and herb species that are rich sources of essential oils. In this study, we aim to quantify the essential oil content and determine the chemical constituents of fresh leaves of 14 plant species in a restinga stretch in southern Brazil. Essential oils were obtained by hydrodistillation in a Clevenger-type apparatus and analyzed by gas chromatography coupled to mass spectrometry. Campomanesia reitziana, Cortaderia selloana, and Sophora tomentosa had no essential oils. Total essential oil content ranged from 0.01% (Mikania involucrata) to 1.56% (Varronia curassavica). In total, 60 chemical constituents were identified, representing between 46.2% and 96.5% of the chemical composition of the essential oils. Limonene was the common constituent in all species in which the essential oils were present. The major constituents were ar-curcumene (15.1%) and cis-chrysanthenol (14.2%) in Ambrosia elatior; benzyl benzoate (43.5%) and benzyl salicylate (23.7%) in Aniba firmula; caryophyllene oxide (35.7%) and spathulenol (10.6%) in Austroeupatorium inulaefolium; spathulenol (19.8%) and caryophyllene oxide (14.0%) in Baccharis spicata; caryophyllene oxide (16.3%) in Eugenia astringens; curzerene (30.0%), limonene (13.0%), and germacrone (11.9%) in Eugenia uniflora; caryophyllene oxide (17.1%) and ledol (11.3%) in Lantana camara; caryophyllene oxide (27.7%) and limonene (12.7%) in M. involucrata; 1,8-cineole (19.8%) in Psidium cattleianum; limonene (10.2%) in Schinus terebinthifolius, and allo-aromadendrene (15.2%) in V. curassavica. We expect that our results can assist in selecting species of potential interest for herbal, phytotherapeutic, and cosmetic products.

scholarly journals Essential Oil Composition and Antimicrobial Activity of Ballota nigra L. ssp Foetida

2009 ◽  
Vol 4 (4) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Daniele Fraternale ◽  
Anahi Bucchini ◽  
Laura Giamperi ◽  
Donata Ricci
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Aerial Parts ◽  
Germacrene D

The chemical composition of the essential oil of Ballota nigra L. ssp foetida obtained from the flowering aerial parts was analyzed by GC/MS. From the 37 identified constituents of the oil, β-caryophyllene (20.0%), germacrene D (18.0%) and caryophyllene oxide (15.0%) were the major components. The oil was active against both Gram-negative and Gram-positive bacteria as well as against three Candida species.

scholarly journals Compositional Comparison of Essential Oils Extracted from Flowers and Aerial Parts of Elsholtzia winitiana var. dongvanensis Phuong Harvested in Ha Giang Province, Vietnam

2020 ◽  
Vol 32 (10) ◽  
pp. 2438-2442
Author(s):  
Pham Thi Ngoc Mai ◽  
Nguyen Thi Hong Van ◽  
Chu Quang Truyen ◽  
Tran Dinh Thang ◽  
Tran Quoc Toan ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Chemical Transformation ◽  
Chemical Constituents ◽  
Aromatic Ketone ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Important Chemical ◽  
Germacrene D ◽  
Total Oil

Elsholtzia winitiana var. dongvanensis Phuong is a plant contains an essential oil characterized by an important chemical transformation. Essential oils were isolated from Elsholtzia winitiana var. dongvanensis Phuong flowers and aerial parts by hydrodistillation and analyzed for chemical constituents by GC-MS. Twenty-two components accounting for 99.99% of the total oil of flowers and twenty-three components accounting for 98.72 % of the total oil of aerial parts were identified. The composition of the essential oil contains aldehyde, aromatic ketone, monoterpenoid and secquiterpenoid. Major components found in two essential oil samples were andehyde, terpenoid, ketone benzaldehyde, germacrene D, E-caryphyllene and caryophyllene oxide. Moreover, essential oil sample isolated from flowers and aerial parts of E. winitiana var. dongvannensis was dominated by the high content of rosefuran (75.67%) and rosefuran epoxide (71.33%), respectively.

scholarly journals Chemical Constituents and Activity of Murraya microphylla Essential Oil against Lasioderma serricorne

2015 ◽  
Vol 10 (9) ◽  
pp. 1934578X1501000
Author(s):  
Chun-Xue You ◽  
Shan-Shan Guo ◽  
Wen-Juan Zhang ◽  
Kai Yang ◽  
Cheng-Fang Wang ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Positive Control ◽  
Mass Spectrometric ◽  
Stored Products ◽  
Caryophyllene Oxide ◽  
Lasioderma Serricorne ◽  
Natural Insecticides

The chemical composition, contact and repellent activities of the essential oil from Murraya microphylla branches and leaves against Lasioderma serricorne adults were determined and six compounds from the essential oil were isolated as well. The essential oil of M. microphylla obtained by hydrodistillation was analyzed by gas chromatography-mass spectrometric (GC-MS) analysis; 22 compounds were identified. The main constituents of the essential oil included β-caryophyllene (18.0%), α-pinene (13.8%), spathulenol (9.5%), α-humulene (6.0%), γ-elemene (5.1%) and zingiberene (4.6%), followed by α-cadinol (3.9%) and caryophyllene oxide (3.8%). Six of these compounds were isolated and fully identified as α-pinene, β-caryophyllene, α-humulene, caryophyllene oxide, spathulenol and α-cadinol. L. serricorne adults had different sensitivities to the crude essential oil and isolated compounds. α-Humulene exhibited the strongest contact activity against L. serricorne, showing an LD50 value of 13.1 μg adult−1. However, spathulenol, the crude essential oil and α-cadinol showed stronger contact activity against L. serricorne than caryophyllene oxide and β-caryophyllene. The essential oil, α-humulene and spathulenol showed comparable repellency against L. serricorne adults at 2 h after exposure, relative to the positive control, DEET. The results demonstrate that the essential oil and isolated compounds exhibited important contact and repellent activities against L. serricorne. Thus, they could become potential natural insecticides or repellents for control of insects in stored products.

scholarly journals Chemical Composition of the Essential Oil of Cachrys libanotis from Algeria

2011 ◽  
Vol 6 (1) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Nabila Bouderdara ◽  
Abdelhakim Elomri ◽  
Lakhdar Djarri ◽  
Kamel Medjroubi ◽  
Elisabeth Seguin ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Germacrene D ◽  
Main Components

The essential oil of aerial parts of Cachrys libanotis L. (Apiaceae) from east Algeria was extracted by hydrodistillation and analyzed by GC-FID and GC-MS. Thirty-one compounds were identified, the main components being germacrene-D (18.0%), γ-terpinene (6.4%), p-cymene (5.5%), caryophyllene oxide (5.1%), and limonene (5.1%).

scholarly journals Chemical Composition and Phytotoxic Effects of Essential Oils from Four Teucrium Species

2010 ◽  
Vol 5 (12) ◽  
pp. 1934578X1000501 ◽  
Author(s):  
Laura De Martino ◽  
Carmen Formisano ◽  
Emilia Mancini ◽  
Vincenzo De Feo ◽  
Franco Piozzi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Caryophyllene Oxide ◽  
Garden Cress ◽  
Active Compounds ◽  
Radicle Elongation ◽  
Germacrene D ◽  
Teucrium Polium ◽  
Main Components

The essential oils of four Teucrium species were studied and 131 components, in all, were identified. All oils were rich in sesquiterpenes (50.0-61.9%). Caryophyllene and caryophyllene oxide were the main components of Teucrium arduini; germacrene D, δ-cadinene and γ-cadinene predominated in Teucrium maghrebinum. Carvacrol and caryophyllene predominated in Teucrium polium ssp. capitatum, while carvacrol, caryophyllene oxide and caryophyllene were the most abundant components in Teucrium montbretii ssp. heliotropiifolium. The germination of radish and garden cress was less sensitive to the four essential oils. The radicle elongation, above all, of radish was significantly inhibited by all oils, in particular by the essential oil of T. arduini, at the highest doses tested. Among the main components of the oils, monoterpenes resulted the more active compounds.

scholarly journals Chemical Composition of the Essential Oil of Centella asiatica (L.) Urb. from Western Himalaya

2007 ◽  
Vol 2 (5) ◽  
pp. 1934578X0700200
Author(s):  
Virendra P. Joshi ◽  
Neeraj Kumar ◽  
Bikram Singh ◽  
R. P. Chamoli
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Centella Asiatica ◽  
Western Himalaya ◽  
Caryophyllene Oxide ◽  
Whole Plant ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D

The chemical composition of the essential oil obtained by hydrodistillation of the whole plant of Centella asiatica (L.) Urb., growing wild in western Himalaya, was investigated by GC-FID and GC-MS on two columns of different polarities. The oil contained 73.3% of sesquiterpene hydrocarbons, comprised mainly of β-caryophyllene (23.2%), α-humulene (23.1%), trans-β-farnesene (6.3%), germacrene-D (5.4%) and caryophyllene oxide (3.3%).

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