scholarly journals Characterization and Chemical Composition Analysis of Tea Tree (Meleuca alternifolia) Leaf Hydrosols Growing on Lombok Island

2022 ◽  
Vol 8 (1) ◽  
pp. 119-123
Author(s):  
Baiq Riyankati ◽  
Surya Hadi ◽  
Sri Seno Handayani
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Composition Analysis ◽  
Distilled Water ◽  
Tree Leaves ◽  
Tea Tree ◽  
Chemical Composition Analysis ◽  
By Products ◽  
Lombok Island

Tea tree is an essential oil-producing plant from Australia which is also found growing in several parts of Indonesia, including the island of Lombok. So far, tea tree essential oil producers on the island of Lombok do not utilize by-products in the form of hydrosol (distilled water) produced in the process of making essential oils. In this study, the characterization and analysis of the chemical composition of the hydrosol of tea tree leaves growing on the island of Lombok was carried out. The characteristic aroma of hydrosol is similar to that of tea tree essential oil. The results of the GC-MS analysis also showed that the hydrosol of tea tree leaves also had similarities with the essential oil, composed of major compounds in the form of trans-caryophyllene (28.58%), limonene (13.98%) and terpinen-4-ol (16.27%). Other compounds detected were -pinene (4.14%), -pinene (6.50%), -myrcene (8.09%), -terpineol (10.10%) and -terpinene (5.77%).

scholarly journals Chemical composition analysis of the essential oil of Solanumn nigrum L. by HS/SPME method and calculation of the biochemical coefficients of the components

2017 ◽  
Vol 10 ◽  
pp. S2372-S2375 ◽  
Author(s):  
Avat (Arman) Taherpour ◽  
Mohammad Mehdi Khodaei ◽  
Baram Ahmed Hama Ameen ◽  
Majid Ghaitouli ◽  
Nosratollah Mahdizadeh ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Composition Analysis ◽  
Chemical Composition Analysis

scholarly journals Extraction, Chemical Composition and Antimicrobial Activity of the Essential Oils of Pipilongo (Piper Tuberculatum)Using Supercritical Carbon Dioxide

2014 ◽  
Vol 17 (3) ◽  
pp. 45-56 ◽  
Author(s):  
Jaime Restrepo Osorio ◽  
Ana Julia Colmenares Dulcey ◽  
Luis E. Mora ◽  
Rubén Albeiro Sánchez Andica
Keyword(s):  
Carbon Dioxide ◽  
Particle Size ◽  
Chemical Composition ◽  
Supercritical Carbon Dioxide ◽  
Essential Oils ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Composition Analysis ◽  
Chemical Composition Analysis ◽  
Supercritical Carbon

Essential oils from pipilongo seeds (Piper tuberculatum) was extracted using supercritical carbon dioxide. The extraction was performed as a function of particle size of the grinded seeds. The highest yield (2,812%) was obtained with the smallest particle size. The chemical composition analysis  of  the  oil  by  GC-MS  led  to  identify  15  compounds,  some  of  which  are  β-elemene, caryophyllene, β-farnesene, neophytadiene and piperine among others. The microbicide activity of the essential oil was determined by Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) assays, showing that the growth of the bacteria Staphylococcus aureus and Bacillus subtilis was inhibited, and hence with a possible microbicidal effect, whereas for pseudomonas aeruginosa and Salmonella typhimurium showed no effect on their growth.

scholarly journals Chemical composition and insecticidal activity of Cymbopogon citratus essential oil from Cuba and Brazil against housefly

2015 ◽  
Vol 24 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Zeneida Teixeira Pinto ◽  
Félix Fernández Sánchez ◽  
Arith Ramos dos Santos ◽  
Ana Claudia Fernandes Amaral ◽  
José Luiz Pinto Ferreira ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Morphological Changes ◽  
Chemical Characterization ◽  
Composition Analysis ◽  
Cymbopogon Citratus ◽  
Newly Hatched Larvae ◽  
Main Components ◽  
Dose Dependent

Essential oil of Cymbopogon citratus collected from Brazil and Cuba was tested to a chemical characterization and then was tested on the post-embryonic development of Musca domestica. The chemical composition analysis by GC-MS of the oils from Brazil/Cuba allowed the identification of 13 and 12 major constituents respectively; nine of them common to both. In the both oils, the main components were the isomers geranial and neral, which together form the compound citral. This corresponds to a total of 97.92%/Brazil and 97.69%/Cuba of the compounds identified. The monoterpene myrcene, observed only in the sample of Cuba, presented a large relative abundance (6.52%). The essential oil of C. citratus (Brazil/Cuba) was dissolved in DMSO and tested at concentrations of 5, 10, 25, 50, 75 and 100% and citral was prepared by mixing 16.8 mg with 960 µL DMSO. Both essential oils and monoterpene citral were applied topically to newly-hatched larvae (1µL/larva). The results showed a lethal concentration (LC50) of 4.25 and 3.24% for the Brazilian and Cuban essential oils, respectively. Mortalities of larval and newly-hatched larvae to adult periods were dose-dependent for the two both oils as for monoterpene citral, reaching 90%. Both essential oils and citral caused morphological changes in adult specimens.

scholarly journals Chemical Composition and Assessment of Antimicrobial Activity of Lavender Essential Oil and Some By-Products

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1829
Author(s):  
Alexandru Ciocarlan ◽  
Lucian Lupascu ◽  
Aculina Aricu ◽  
Ion Dragalin ◽  
Violeta Popescu ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Xanthomonas Campestris ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Residual Water ◽  
By Products

The producers of essential oils from the Republic of Moldova care about the quality of their products and at the same time, try to capitalize on the waste from processing. The purpose of the present study was to analyze the chemical composition of lavender (Lavanda angustifolia L.) essential oil and some by-products derived from its production (residual water, residual herbs), as well as to assess their “in vitro” antimicrobial activity. The gas chromatography-mass spectrometry analysis of essential oils produced by seven industrial manufacturers led to the identification of 41 constituents that meant 96.80–99.79% of the total. The main constituents are monoterpenes (84.08–92.55%), followed by sesquiterpenes (3.30–13.45%), and some aliphatic compounds (1.42–3.90%). The high-performance liquid chromatography analysis allowed the quantification of known triterpenes, ursolic, and oleanolic acids, in freshly dried lavender plants and in the residual by-products after hydrodistillation of the essential oil. The lavender essential oil showed good antibacterial activity against Bacillus subtilis, Pseudomonas fluorescens, Xanthomonas campestris, Erwinia carotovora at 300 μg/mL concentration, and Erwinia amylovora, Candida utilis at 150 μg/mL concentration, respectively. Lavender plant material but also the residual water and ethanolic extracts from the solid waste residue showed high antimicrobial activity against Aspergillus niger, Alternaria alternata, Penicillium chrysogenum, Bacillus sp., and Pseudomonas aeroginosa strains, at 0.75–6.0 μg/mL, 0.08–0.125 μg/mL, and 0.05–4.0 μg/mL, respectively.

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