scholarly journals Chemical and Enantioselective Analysis of the Leaf Essential Oil from Piper coruscans Kunth (Piperaceae), a Costal and Amazonian Native Species of Ecuador

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 791 ◽  
Author(s):  
Gianluca Gilardoni ◽  
Yadira Matute ◽  
Jorge Ramírez
Keyword(s):  
Organic Compound ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Aqueous Phase ◽  
Native Species ◽  
Caryophyllene Oxide ◽  
Distillation Process ◽  
Enantioselective Analysis ◽  
The Family ◽  
Leaf Essential Oil

In the present study, an essential oil was distilled from the leaves of Piper coruscans Kunth, a native Amazonian species belonging to the family Piperaceae and quite common in Ecuador. The chemical analysis was performed by GC-MS (qualitative) and GC-FID (quantitative), on polar and non-polar columns, detecting a total of 58 compounds of which 52 were identified. All the identified compounds were quantified. The essential oil was mainly constituted of sesquiterpenes (54.1–55.0%) and oxygenated sesquiterpenoids (32.5–33.6%), the major constituents being: (E)-β-caryophyllene (24.1–25.0%), α-humulene (11.6–12.0%), caryophyllene oxide (9.3–10.9%), linalool (4.5–5.2%), humulene epoxide II (3.6–4.1%), (E)-nerolidol (3.7–4.0%), α-copaene (3.7–3.9%), α-muurolol (3.4–3.7%), α-selinene (3.4–3.5%), β-selinene (3.1–3.3%), and one undetermined oxygenated sesquiterpenoid (3.1–3.3%). The aqueous phase (hydrolate) of the distillation process was also submitted to chemical analysis, showing linalool as the main organic compound in solution, with a concentration of 12.3–15.7 mg/100 mL. The essential oil was than analyzed for the enantiomeric distribution of its monoterpene constituents, affording the following enantiomeric excesses in two β-cyclodextrin-based enantioselective columns: (1S,5S)-(-)-α-pinene (60.0–69.6%), (1S,5S)-(-)-β-pinene (5.2–7.2%), (R)-(-)-α-phellandrene (72.5–78.2%), (R)-(+)-limonene (28.6%) and (R)-(-)-linalool (1.8–3.1%).

Essential oil composition of two yarrow taxonomic forms

2010 ◽  
Vol 5 (3) ◽  
pp. 346-352 ◽  
Author(s):  
Asta Judzentiene ◽  
Danute Mockute
Keyword(s):  
Chemical Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Achillea Millefolium ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Plant Organs ◽  
First Time

AbstractDifferences in essential oil composition of wild Achillea millefolium L., collected at five habitats in Lithuania, where plants with pink (f. rosea) and white (f. millefolium) flowers grow together, were reported. For the first time, oils of different plant organs (inflorescences and leaves) of both forms from every population were analysed in detail. Chemical analysis was performed by GC and GC-MS. The most predominant constituents of the oils were nerolidol (9.4–31.9%, in 11 out of 20 samples), caryophyllene oxide (8.4–23.0%, 4 leaf oils), ß-pinene (8.0–15.2%, 2 samples), eudesmol (11.8–15.8%, 2 leaf oils) and 1,8-cineole (11.9%, one inflorescence oil). Domination of nerolidol was mostly characteristic of A. millefolium f. rosea essential oils (in 8 out of 10 oils). The inflorescences biosynthesised markedly larger amounts of nerolidol and ß-pinene than those of the leaves. An opposite correlation was observed for caryophyllene oxide and eudesmol. Chamazulene (≤2.7%) was determined only in six oils. The 65 identified constituents made up 75.4–96.5% of the oils.

scholarly journals Constituents of Essential Oils from the Leaf and Flower of Plumeria alba Grown in Nigeria

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Oladipupo A. Lawal ◽  
Isiaka A. Ogunwande ◽  
Andy R. Opoku
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
The Other ◽  
Caryophyllene Oxide ◽  
First Report ◽  
Leaf Oil ◽  
Phenyl Acetaldehyde

This paper reports on the compounds identified in the leaf and flower essential oils obtained by hydrodistillation of Plumeria alba L. (Apocynaceae) grown in Nigeria. The chemical analysis of the essential oils was achieved by means of gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). Linalool (13.2%), n-nonanal (9.6%), phenyl acetaldehyde (8.5%), neryl acetone (5.3%) and n-decanal (5.1%) were the main constituents of the leaf oil. On the other hand, the flower oil comprised mainly of limonene (9.1%), linalool (7.9%), α-cedrene (8.0%), caryophyllene oxide (7.9%) and ( E, E)-α-farnesene (6.6%). This is the first report on the essential oil constituents of P. alba.

scholarly journals Geographical chemical variability and processing oxidation of volatile compounds of Casearia sylvestris leaves

2021 ◽  
Vol 46 (3) ◽  
pp. 42-48
Author(s):  
Flavio Alexandre Carvalho ◽  
Fernando Bombarda Oda ◽  
Ant�nio Eduardo Miller Crotti ◽  
Eduardo Jos� Crevelin ◽  
Andr� Gonzaga Dos Santos
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Volatile Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Caryophyllene Oxide ◽  
Volatile Chemicals ◽  
Leaf Essential Oil ◽  
Casearia Sylvestris ◽  
Main Components

The Casearia sylvestris Sw. dried leaf essential oil (EO) contains sesquiterpenes as the main components. However, the volatile components in the in natura leaves remain unknown. This study compares the volatile chemicals in the in natura leaves and dried leaf EO of two C. sylvestris populations from Atlantic Forest and Cerrado. The volatile compounds were directly analysed by thermal desorption (TD) coupled to gas chromatography mass spectrometry (GC-MS); the dried leaf EO composition was determined by GC-MS. All the identified compounds were sesquiterpenes, and the major components were (E)-caryophyllene, bicyclogermacrene, ?-elemene, spathulenol, and caryophyllene oxide. In both populations, the sesquiterpene hydrocarbon content and the oxygenated sesquiterpene content respectively decreased and increased on going from the in natura leaves to the dried leaf essential oil, indicating that drying and/or hydrodistillation modified the volatile chemical composition by generating oxidation artifacts. Results suggested that (E)-caryophyllene and bicyclogermacrene may be oxidized during the process to yield caryophyllene oxide and spathulenol, respectively. The two C. sylvestris populations also differed in terms of volatile chemical composition.

Insecticidal activity of essential oils of species from the genus Lippia against Nasutitermes corniger (Motschulsky) (Isoptera: Termitidae)

Sociobiology ◽  
2020 ◽  
Vol 67 (2) ◽  
pp. 292
Author(s):  
Daiane Rodrigues Santos ◽  
Lenaldo Muniz Oliveira ◽  
Angelica Maria Lucchese ◽  
Alexandre De Freitas Espeleta ◽  
Jucelho Dantas Da Cruz ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Filter Paper ◽  
Bioactive Molecules ◽  
Caryophyllene Oxide ◽  
High Toxicity ◽  
Nasutitermes Corniger ◽  
The Family

Lippia is one of the main genera in the family Verbenaceae, with 200 species described. Despite its richness in bioactive molecules, with several scientifically proven applications, there is little information on the insecticidal potential of its species. This study aimed to assess the insecticidal potential of essential oils from the species Lippia thymoides (Martius & Schauer); Lippia lasiocalycina (Schauer) and Lippia insignis (Moldenk) against Nasutitermes corniger (Motschulsky) (Isoptera-Termitidae). Insecticidal activity was evaluated by exposure to a contaminated surface, whereby plastic pots were lined with filter paper and imbibed in 1.5 ml of solution containing essential oils (10 µl/ml), with 10 N. corniger specimens per pot. The mortality count was performed at 24 and 48 h. The LC50 was determined by diluting the essential oils to concentrations of 0, 0.625, 1.25, 2.5, 5.0 and 10 µl/ml, which were chemically analyzed by GC-FID and GC-MS. The data indicated high toxicity for the essential oils for the Lippia species tested. The lowest LC50 (0.46 µl/ml) was recorded for L. lasiocalycina. The most common constituents were β-myrcene and (E)-ocimenone in essential oil of L. lasiocalycina, β-myrcene and limonene for L. insignis, and (E)-caryophyllene and caryophyllene oxide for L. thymoides. The results demonstrate the viability of developing biopesticides for N. corniger control.

scholarly journals Caryophyllene-Rich Essential Oil of Didymocarpus Tomentosa: Chemical Composition and Cytotoxic Activity

2012 ◽  
Vol 7 (11) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Prameela Javarayi Gowda ◽  
Hanumanthaiah Ramakrishnaiah ◽  
Venkatarangaiah Krishna ◽  
Sivakrishna Narra ◽  
Nataraj Jagannath
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Tumor Cell ◽  
Cytotoxic Activity ◽  
Cell Line ◽  
Mtt Assay ◽  
Tumor Cell Line ◽  
Caryophyllene Oxide ◽  
Leaf Oil ◽  
Leaf Essential Oil

The essential oil from the leaves of Didymocarpus tomentosa was extracted by hydrodistillation and analyzed by GC/FID and GC/MS. Twenty five constituents amounting to 81.6% of the oil were identified. The leaf oil contained 78.7% sesquiterpenes and 2.9% monoterpenes. The leaf essential oil of D. tomentosa is a unique caryophyllene-rich natural source containing β-caryophyllene, caryophyllene oxide, α-humulene and humulene oxide. The cytotoxic activity of the oil was determined by the BSLT using shrimp larva and the MTT assay using HeLa tumor cell line. The oil showed significant cytotoxic activity with LC50 and IC50 values of 12.26 and 11.4 μg/mL, respectively. This is the first report on the chemical composition and cytotoxic activity of the essential oil of D. tomentosa.

scholarly journals Chemical Composition and Biting Deterrent Activity of Essential Oil of Tagetes patula (Marigold) against Aedes aegypti

2016 ◽  
Vol 11 (10) ◽  
pp. 1934578X1601101
Author(s):  
Abbas Ali ◽  
Nurhayat Tabanca ◽  
Elham Amin ◽  
Betul Demirci ◽  
Ikhlas A. Khan
Keyword(s):  
Essential Oil ◽  
Aedes Aegypti ◽  
Tagetes Patula ◽  
Caryophyllene Oxide ◽  
Leaf Essential Oil ◽  
Main Components ◽  
Deterrent Activity ◽  
Module System

The hydrodistilled leaf essential oil (EO) of Tagetes patula L. was analyzed by GC-FID and GC-MS. The main components of the oil were characterized as caryophyllene oxide (18.4%), β-caryophyllene (18.0%) and spathulenol (9.1%). The EO was screened for its biting deterrent activity against Aedes aegypti L. using the in vitro K&D module system. T. patula EO exhibited good biting deterrent activity. The results suggest that these sesquiterpenes may contribute to biting deterrent activity, but the role of minor components cannot be excluded. T. patula EO also showed 100, 90 and 10% mortality at dosages of 125, 62.5 and 31.25 ppm, respectively, in 1-day-old larvae of Ae. aegypti.

scholarly journals Essential oil yield and composition of Lamiaceae species growing in southern Brazil

2009 ◽  
Vol 52 (2) ◽  
pp. 473-478 ◽  
Author(s):  
Fabiana Agostini ◽  
Ana Cristina Atti dos Santos ◽  
Marcelo Rossato ◽  
Márcia Regina Pansera ◽  
Paula Luciana dos Santos ◽  
...  
Keyword(s):  
Essential Oil ◽  
Native Species ◽  
Retention Indices ◽  
Mass Spectral Fragmentation ◽  
Mentha Aquatica ◽  
Mass Spectral ◽  
Kováts Retention Indices ◽  
The Family ◽  
Fragmentation Patterns ◽  
Potential Use

The Lamiaceae family has been described to be rich in essential oil. The aim of the present work was to identify the native species of Rio Grande do Sul with potential use as the aromatic plants. Seven species of the family were collected in the different localities of the state. The essential oils were obtained by 1h hydrodistillation in a Clevenger apparatus. The constituents were identified by comparing their GC Kovats retention indices (RI), determined with reference to a homologous series of n-alkanes and by comparing their mass spectral fragmentation patterns with literature data. Cunila incisa and Mentha aquatica resulted in the higher esssential oil yields (1.94% v/w and 0.93% v/w, respectively. The composition of M. aquatica was 80% methone, with almost 14% pulegone. C. microcephala had 53% menthofuran and C. incisa nearly 45% of 1.8-cineol and 18% α-terpineol.

scholarly journals Komposisi kimia minyak atsiri daun cengkeh dari proses penyulingan uap

2018 ◽  
Vol 10 (1) ◽  
pp. 37 ◽  
Author(s):  
J Jayanudin
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Food Industry ◽  
Steam Distillation ◽  
Composition Analysis ◽  
Distillation Process ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Anhydrous Na2so4 ◽  
Chemical Composition Analysis

The chemical composition of clove leaf essential oil obtained from steam distillation process Essential oils are needed in various industries such as industrial perfumes, cosmetics, pharmaceuticals, food industry, and beverages. This study aims to determine the chemical composition of clove leaf essential oil from steam distillation process using GCMS. Dry clove leaves weighing 1.5 kg are included in the kettle flute and sealed properly. Steam from the boiler flows into the kettle with the pressure of 0.5 barG, 1 barG and 1.5 barG for 5, 6 and 7 hours. Mixture oil and water out of the condenser are accommodated and let stand for 24 hours to separate water and oil. Clove leaf oil was purified with 10% bentonite by weight of oil at a temperature of 50oC with stirring for 1 hour. Clove leaf oil that has separated from bentonite added anhydrous Na2SO4 and let stand for 15 minutes and then separate the water and Na2SO4 in oil. Samples with % yield of the largest in its chemical composition analysis using GCMS. Based on the results obtained the largest yield is 1.84% with content of eugenol is 65.03% and 20.94% trans-caryophyllene. Keywords : Clove leaf, Eugenol, Essential Oil, Steam distillationAbstrakMinyak atsiri sangat dibutuhkan dalam berbagai industri seperti industri parfum, kosmetik, farmasi, industri makanan, dan minuman. Penelitian ini bertujuan untuk mengetahui komposisi kimia minyak atsiri daun cengkeh dari proses penyulingan uap menggunakan analisa GCMS. Daun cengkeh kering seberat 1,5 kg yang sudah bersih dari kotoran dimasukkan dalam ketel suling dan ditutup dengan rapat. Steam dari boiler dialirkan ke ketel suling dengan tekanan 0,5 barG, 1 barG dan 1,5 barG selama 5, 6 dan 7 jam. Campuran minyak dan air yang keluar dari kondenser ditampung dan diamkan selama 24 jam untuk memisahkan air dan minyak. Minyak daun cengkeh dimurnikan dengan bentonit 10% dari berat minyak pada suhu 50oC sambil diaduk selama 1 jam. Minyak daun cengkeh yang telah terpisah dari bentonit ditambahkan Na2SO4 anhidrat dan diamkan selama 15 menit kemudian pisahkan air dan Na2SO4 dalam minyak. Sampel dengan % rendemen terbesar di analisa komposisi kimianya menggunakan GCMS. Berdasarkan hasil penelitian didapat rendemen terbesar adalah 1,84% dengan kadar yaitu eugenol 65,03% dan trans-caryophyllene 20.94%.Kata kunci : Daun cengkeh, Eugenol, Minyak atsiri, Penyulingan uap

scholarly journals Essential Oil Compositions, Antibacterial and Antifungal Activities of Nigerian Members of the Burseraceae: Boswellia dalzielii and Canarium schweinfurthii

2020 ◽  
Vol 15 (8) ◽  
pp. 1934578X2094694
Author(s):  
Moses S. Owolabi ◽  
Akintayo Ogundajo ◽  
Balogun Olaoye Solomon ◽  
Logunleko Olatunde ◽  
Noura S. Dosoky ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Stem Bark ◽  
Biologically Active ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Compositions ◽  
Antibacterial And Antifungal Activities ◽  
The Family ◽  
Leaf Essential Oil ◽  
Antibacterial And Antifungal

The Burseraceae is an important family of resin-producing trees and shrubs, which have yielded biologically active essential oils. Boswellia dalzielii and Canarium schweinfurthii are members of the family that are used in West African traditional medicine for a variety of ailments. The leaf essential oils of B. dalzielii have been obtained from 2 different locations in north-central Nigeria, while the leaf and stem bark essential oils of C. schweinfurthii have been obtained from 3 locations. The chemical compositions of the essential oils have been determined by gas chromatography-mass spectrometry and show wide variation, especially for the leaf essential oils. The leaf essential oils of B. dalzielii and C. schweinfurthii have been screened for antibacterial and antifungal activity; C. schweinfurthii leaf essential oil showed remarkable activity against Aspergillus niger with a minimum inhibitory concentration of 78.1 μg/mL.

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