Knowledge Tree
essential oils
Also known as: essential oil
Facts (61)
Sources
Medicinal plants: bioactive compounds, biological activities ... frontiersin.org 22 facts
claimThe essential oil of Acroptilon repens (L.) DC. contains chemical constituents with antimicrobial activities, as reported by Norouzi-Arasi et al. in 2006.
claimEssential oils from three Uzbek Lamiaceae species possess antimicrobial and antioxidant activities, according to a 2019 study by Mamadalieva et al.
claimThe essential oil from Zingiber cassumunar Roxb exhibits in vitro synergistic antibacterial activity against extensively drug-resistant Acinetobacter baumannii strains.
claimRosemary and oregano essential oils were evaluated for their bacteriostatic effect against a non-pathogenic surrogate of Salmonella spp. (E. coli ATCC 9637).
claimEssential oils (such as linalool), bioactive compounds found in Ocimum basilicum (basil), are effective against the MDR microorganisms Escherichia coli and Staphylococcus aureus.
referenceHammer et al. (2012) studied the effects of Melaleuca alternifolia (tea tree) essential oil and its major monoterpene component, terpinen-4-ol, on the development of antibiotic resistance and antimicrobial susceptibility.
referenceMoghrovyan and Sahakyan (2024) studied the antimicrobial activity and mechanisms of action of Origanum vulgare L. essential oil, specifically its effects on membrane-associated properties, in the journal AIMS Biophysics.
claimMedicinal plants contain diverse bioactive chemicals including coumarins, flavonoids, phenolics, alkaloids, terpenoids, tannins, essential oils, lectins, polypeptides, and polyacetylenes.
claimEssential oils from Cuminum cyminum L. and Carum carvi L. exhibit antibacterial activity, according to a 2005 study by Iacobellis et al.
claimEssential oils and methanol extract of Origanum vulgare ssp. vulgare from the Eastern Anatolia region of Turkey possess biological activities, as reported by Şahin et al. in 2004.
claimClove extract and essential oil possess antiviral properties.
claimEssential oils from Citrus aurantifolia, Ocimum basilicum, and Allium sativum have antimicrobial activity in poultry.
referenceGadisa et al. studied the combined antibacterial effect of essential oils from three commonly used Ethiopian traditional medicinal plants against multidrug-resistant bacteria.
claimNatural emulsions based on essential oils function as antifungal and antimycotoxicogenic agents on wheat for the bakery industry.
referenceRay AS, Mandal SK, and Rahaman CH discussed the phytochemistry, pharmacology, and safety issues of essential oils and their applications in aromatherapy in the book 'The therapeutic properties of medicinal plants' (2019).
claimThe essential oil of Artemisia dracunculus 'piemontese' from Italy has antimicrobial activity, according to a 2006 study by Curini et al.
claimPreparations of medicinal plants and essential oils exhibit significant antioxidant and antiviral activities.
referenceMarchese et al. (2017) reviewed the antimicrobial activity and mechanistic viewpoint of eugenol and essential oils containing eugenol in the journal Critical Reviews in Microbiology.
procedureThe procedure for evaluating medicinal plants for anti-infective properties involves: (1) selecting plant species based on traditional use, (2) subjecting the plants to extraction processes to obtain crude extracts or essential oils, (3) evaluating the extracts for their ability to inhibit the growth of harmful microorganisms, (4) confirming inhibitory activity via dose-dependent assays (MIC), (5) performing targeted assays to identify active constituents, (6) selecting and refining the most active fractions, and (7) using chemical testing and contemporary pharmacognosy to determine the composition of the final fraction.
procedureGas chromatography and mass spectrometry (GC–MS) is a method used to analyze essential oils by using an inert gas stream to introduce a sample into a mobile phase, where it traverses a stationary phase in a capillary column before being detected by a mass spectrometry detector.
referenceOrtega-Ramirez LA, Silva-Espinoza BA, Vargas-Arispuro I, Gonzalez-Aguilar GA, Cruz-Valenzuela MR, Nazzaro F, et al. published a 2017 study in the Journal of the Science of Food and Agriculture titled 'Combination of Cymbopogon citratus and Allium cepa essential oils increased antibacterial activity in leafy vegetables', which demonstrates the synergistic antibacterial effect of these essential oils.
claimPelargonium graveolens, Rosemary officinalis, and Mentha piperita essential oils exhibit antimicrobial synergism and antibiofilm activities against extreme drug-resistant Acinetobacter baumannii clinical isolates.
Phytochemical and Pharmacological Studies of Traditionally Used ... heraldopenaccess.us 15 facts
referenceSakkas and Papadopoulou (2017) analyzed the antimicrobial activity of essential oils derived from basil, oregano, and thyme.
referenceGovindarajan et al. (2013) determined the chemical composition and larvicidal activity of essential oil from Ocimum basilicum (L.) against the mosquito species Culex tritaeniorhynchus, Aedes albopictus, and Anopheles subpictus.
claimOcimum basilicum Linn. contains secondary metabolites including essential oils, phenols, flavonoids, anthocyanins, tannins, and steroids, along with minerals such as Fe, Ca, Mg, P, Mn, Na, K, and Zn.
claimEssential oils and extracts of Ocimum genus species contain inhibitors of glycoprotein adhesion on the surface of SARS-CoV-2, which prevent viral replication and strengthen the immune system.
claimCurry leaves mouthwash containing essential oils and saponin can minimize COVID-19 infections.
claimHerbal plant infusions available as ready-to-serve drinks, instant tea, or squashes possess antidiabetic properties due to the presence of functional ingredients including phenols, flavonoids, tannins, alkaloids, and essential oils, which increase sugar metabolism by stimulating insulin secretion and maximizing sugar excretion through renal diuresis.
referenceLi H, Ge Y, Luo Z, Zhou Y, and Zhang X (2017) evaluated the chemical composition, antioxidant, and anti-inflammatory activities of distillate and residue fractions of sweet basil essential oil in the Journal of Food Science and Technology.
referenceMurraya koenigii (L.) Spreng. contains the active compounds mahanine, mahanimbicine, mahanimbine, and essential oil, which promote wound healing by acting against inflammatory cells and reducing collagen deposition, as reported by Bhandari et al.
referenceMurraya koenigii (L.) Spreng. contains mahanimbine and essential oil, which exhibit anti-ulcer activity by affecting the lesion index, area, and percentage of lesions, as reported by Shinde et al.
referenceOpalchenova and Obreshkova (2003) conducted comparative studies on the activity of essential oil from Ocimum basilicum against multidrug-resistant clinical isolates of the genera Staphylococcus, Enterococcus, and Pseudomonas using various test methods.
referenceIlic AS, Antiv MP, Jelacic SC, and Knudsen TMS (2018) analyzed the chemical composition of the essential oils of three Ocimum basilicum (basil) cultivars from Serbia in the journal Notulae Botanicae Horti Agrobotanici Cluj-Napoca.
referenceGucwa et al. (2018) investigated the antifungal activity and mode of action of essential oils from Thymus vulgaris, Citrus limonum, Pelargonium graveolens, Cinnamomum cassia, Ocimum basilicum, and Eugenia caryophyllus.
referenceMurraya koenigii (L.) Spreng. essential oil is used for oral health by stimulating the salivation process, as reported by Utaipan et al.
referenceMurraya koenigii (L.) Spreng. contains essential oil and vitamin A, which protect the eyes and improve eyesight, as reported by Chaudhary et al.
claimEssential oil derived from Murraya koenigii leaves exhibits antioxidative, antimicrobial, antifungal, anti-inflammatory, and nephroprotective effects in animals.
Medicinal plants and human health: a comprehensive review of ... link.springer.com Nov 5, 2025 9 facts
claimEssential oils from medicinal plants exhibit substantial bacteriostatic activity against tested microorganisms, with effects being particularly pronounced against gram-positive bacteria.
claimFoliar components and essential oils of medicinal plants are utilized in culinary applications for flavor, fragrance, and preservation, in addition to their usage in traditional medicine according to Singh et al. (2025).
claimEssential oils derived from medicinal plants generally contain high concentrations of oxygenated monoterpenes, alongside varying levels of monoterpene hydrocarbons, sesquiterpene hydrocarbons, and oxygenated sesquiterpenes.
claimThe predominant compounds within essential oils differ among plant species, with each species possessing distinct combinations of bioactive molecules that enhance therapeutic efficacy, according to Monib (2024).
claimEssential oils derived from medicinal plants and their monoterpene constituents exhibit dose-dependent and age-dependent insecticidal properties against several insect pests.
claimEssential oils containing monoterpenes and sesquiterpenes disrupt chitin synthesis pathways, compromising fungal cell walls and increasing susceptibility to osmotic stress, particularly in dimorphic fungi and dermatophytes.
claimMedicinal plants are abundant in secondary metabolites and essential oils, which offer advantages such as safety, cost-effectiveness, efficacy, and accessibility for treating diseases.
referenceNurzyńska-Wierdak and Walasek-Janusz (2025) reviewed the chemical composition, biological activity, and potential uses of oregano (Origanum vulgare L.) and its essential oil.
referenceAdeyemi SB, Akere AM, Orege JI, Ejeromeghene O, Orege OB, and Akolade JO (2023) authored 'Polymeric nanoparticles for enhanced delivery and improved bioactivity of essential oils', published in the journal Heliyon (DOI: 10.1016/j.heliyon.2023.e16543).
Ethnobotanical and Food Composition Monographs of Selected ... ouci.dntb.gov.ua 2 facts
referenceWannes WA, Mhamdi B, and Marzouk B published a 2009 study in Food Chemistry titled 'Variations in essential oil and fatty acid composition during Myrtus communis var. italica fruit maturation', which tracks changes in chemical composition during the ripening of the fruit.
referenceCakir A published 'Essential oil and fatty acid composition of the fruits of Hippophae rhamnoides L. (Sea Buckthorn) and Myrtus communis L. from Turkey' in Biochemical Systematics and Ecology in 2004.
Pharmacological Uses of New Bioactive Compounds from Medicinal ... ouci.dntb.gov.ua 2 facts
Pharmacological Uses of New Bioactive Compounds from Medicinal ... academia.edu 2 facts
claimEssential oils exhibit antifungal activity according to a 2017 study published in Pharmaceuticals.
claimSecondary metabolites found in medicinal plants, including flavonoids, tannins, phenolic acids, terpenoids, alkaloids, coumarins, essential oils, and polypeptides, possess antibacterial, anti-inflammatory, antioxidant, anti-cancer, neuroprotective, and immunomodulatory properties.
Active Plant Principles and Applications in Plant Medicine irispublishers.com May 2, 2024 1 fact
claimVolatile (essential) oils are complex mixtures of aliphatic, aromatic, and hydroaromatic hydrocarbons, aldehydes, alcohols, and esters, in which compounds of the terpenoid class generally predominate.
A critical review of industrial fiber hemp anatomy, agronomic ... bioresources.cnr.ncsu.edu 1 fact
referenceBertoli et al. (2010) explored the potential for utilizing fiber hemp inflorescences, which are crop residues, for the production of essential oils.
Wild edible plants for food security, dietary diversity, and nutraceuticals frontiersin.org Nov 27, 2025 1 fact
referenceOladimeji et al. (2024) investigated the phytochemical composition, antioxidant, and antimicrobial activities of essential oils extracted from Emilia coccinea (Sims) G. Don using in-vitro and in-silico approaches, published in 'Vegetos'.
Weighing the risk of cannabis cross-pollination - Hemp Production canr.msu.edu Jul 12, 2019 1 fact
measurementA study by Meier and Mediavilla (1998) found that pollination decreased the yield of essential oils in cannabis flowers by 56%.
Vernonia amygdalina: a comprehensive review of the ... frontiersin.org 1 fact
referenceGonfa et al. (2022) analyzed the chemical compositions of essential oil from aerial parts of Cyclospermum leptophyllum and its application as an antibacterial agent against food spoilage bacteria.
Medicinal Plants and their Traditional Uses - Open Access Pub openaccesspub.org 1 fact
procedureMedicinal plant preparation methods vary by plant part: (A) For flowers, thin leaves, or essential oils, pour boiling water over a teaspoon of coarsely powdered drug in a glass, cover, rest for 5 minutes, and filter through cotton. (B) For coarse-grained leaves or soft fruits, boil a teaspoon of material in a glass of water for 1-2 minutes, rest for 5 minutes, and filter through cotton. (C) For roots, bark, hard fruits, and seeds, boil a teaspoon of coarsely powdered material in a cup of water for 3-5 minutes, rest for 5 minutes, and filter through cotton.
Medicinal plants meet modern biodiversity science - OUCI ouci.dntb.gov.ua 1 fact
measurementA 2018 study at Shahrekord University, Iran, found that phosphorus fertilization increased the essential oil yield of Echinophora platyloba by 488% compared to a positive control.
Investigation of nutritional and phytochemical properties of wild ... nature.com Dec 9, 2025 1 fact
referenceFerrentino et al. investigated the extraction of essential oils from medicinal plants and their utilization as food antioxidants in a 2020 study.
Ethnobotanical study of food plants used in traditional medicine in ... link.springer.com Nov 26, 2025 1 fact
referenceSamba et al. (2020) analyzed the chemical composition and antibacterial activity of Lippia multiflora Moldenke essential oil sourced from different regions of Angola.