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The essential oils from the leaves of Lantana salvifolia Jacq. (Verbenaceae) growing in Brazzaville, Congo, were analysed by GC and GC–MS. They were characterized by the predominance of neral (15–20%) and geranial (26– 34%); the more representative sesquiterpenes were β β β β β-caryophyllene and its oxide (11–18%). This essential oil is compared wi...
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... hydrodistillation of L. salvifolia dried leaves gives a pale yellow essential oil with an average yield of 0.38%. The chromatographic analyses allowed the identification of 54 products, representing 91-94% of the total oil (Table 2). These analyses show that the L. salvifolia essential oils are almost exclusively composed of terpenes, mainly monoterpenes, dominated by two acyclic aldehydes, neral and geranial. ...
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... In contrast to the L. camara oils analyzed up till now from Benin, Brazil, Cuba, Nepal, Yemen, India and Arabia [7,8,11,13,16,19,21], the essential oil of the leaves of L. camara from Côte d'Ivoire contained -humulene, sabinene, germacrene D and bicyclogermacrene as major constituents, while these constituents were generally absent in most of the oils or, if present, were reported as minor or trace constituents. Taking account the chemical composition of the leaf oil from Congo [27], which seemed to be comparable with our profile, it was found numerous common components namely (E)--caryophyllene, germacrene D, -humulene NPC Natural Product Communications and bicyclogermacrene in variable amounts. However, the monoterpenes accounting for 2.8% to 21.3% in our samples revealed the difference exhibited by significant amount of sabinene, α-pinene and β-pinene. ...
The compositions of essential oil obtained from leaves, flowers and fruits of Lantana camara L. growing in wild at Côte d’Ivoire, were investigated by GC and
13C NMR. Thirty-seven compounds accounting for 88.3–94.5% of the oils have been identified. The leaf, flower and fruits of L. camara produced
sesquiterpene-rich essential oils predominated by (E)-β-caryophyllene and α-humulene, in addition to the important content of sabinene, -phellandrene and
thymol as monoterpenes. It was found the new chemical profiles of L. camara.
... Essential oil was extracted from L. trifolia with an oil yield of 0.2% (Juliao et al., 2009). Similarly, hydrodistillation of leaves of L. camara Linn afforded pale yellow oil with yield of 0.25% (v/w) based on the dry weight of the plant (Saikia and Sahoo, 2011) whereas, L. salvifolia dried leaves gives an average essential oil yield of 0.38% (Ouamba, 2006). From studies on essential oils and their constituents, R f data has been calculated for various compounds viz., terpene alcohols, esters and ketones (Nigam et al., 1965). ...
... Essential oil was extracted from L. trifolia with an oil yield of 0.2% ( Juliao et al., 2009). Similarly, hydrodistillation of leaves of L. camara Linn afforded pale yellow oil with yield of 0.25% (v/w) based on the dry weight of the plant (Saikia and Sahoo, 2011) whereas, L. salvifolia dried leaves gives an average essential oil yield of 0.38% (Ouamba, 2006). From studies on essential oils and their constituents, R f data has been calculated for various compounds viz., terpene alcohols, esters and ketones (Nigam et al., 1965). ...
Medicinal plants are important constituents of indigenous traditional medicinal system in India. Various species of Lantana have been traditionally used as a medicinal herb to treat various ailments like tetanus, rheumatism, malaria, cough, fevers, cold, rheumatisms and asthma. In this study focus has been made on TLC profiling and evaluation of antibacterial activity of volatile fraction of essential oils, extracted from three different Lantana species viz. L. involucrata, L. microphylla and L. montevidensis, using hydrodistillation method. The results of antibacterial activity by gaseous contact showed that out of the six bacterial strains tested against the volatile fraction of essential oil of three species of Lantana, maximum antibacterial activity was exhibited by L. involucrata oil against S. pyogenes with minimum inhibitory concentration of 0.26mg/l air and 0.33mg/l air respectively. P. aeruginosa was slightly susceptible to essential oil of L. involucrata and L. microphylla. These results drive new researches with all the three Lantana species in order to isolate the constituents responsible for the activity leading to the discovery of novel antibiotics. 1. Introduction The use of medicinal plants with therapeutic purposes represents a secular tradition in different cultures. Approximately 80% of all established natural products originated from plants and have a significant role in the production of new valuable pharmaceuticals (Phillipson and Wright, 1991; Owolabi et al., 2007). There has been an increasing interest in essential oil research during recent years as an alternative to new antimicrobials due to antibiotic resistance. Lantana camara Linn. (Verbenaceae) is a straggling aromatic shrub native of tropical America and Africa. It is cultivated world-wide as an ornamental and decorative plant but now has been regarded as an antagonistic weed. Lantana is a genus of about 150 species of perennial flowering plants popularly used as antirheumatic, stimulant, antibacterial and as ornamental plant (Ghisalberti, 2000). The plant has also been shown to have fungitoxic (Saxena and Sharma, 1999), autotoxic (Arora and Kohli, 1993) and antioxidant activity (Romero and Saavedra, 2005) but is also poisonous to grazing animals (Morton, 1994) Lantana genus is also known worldwide for its bioactive secondary metabolites and essential oils. The chemical composition and aroma of essential oils from Lantana species can provide valuable psychological and therapeutical benefits. The leaf oil of L. camara exhibits antimicrobial activities (Saxena and Sharma, 1999). The oil is reported to possess insecticidal (Patil et al., 1997) repellent activities towards bees, mosquitoes and cattle fly (Attri, 1978). Scientists have also studied the chemical composition of essential oil extracted from leaves and flowers of Indian Lantana (Khan et al., 2002). Present study has been focused with TLC profiling and evaluation of antibacterial activity of volatile fraction of essential oils, extracted from three different Lantana species viz. L. involucrata, L. microphylla and L. montevidensis, using hydrodistillation method. For studying interspecies variation of their antibacterial activity a set of three gram positive and gram negative bacteria have been employed. II. Materials and methods A. Plant sample Fresh leaves of three different varieties of Lantana (L. involucrata (L1), L. microphylla (L2) and L. montevidensis (L3)) were collected from Bhopal city voucher specimen was deposited in the Herbarium of Dept. of Biological Sciences, Jabalpur (India).
... Lantana lilacina Desf., a 50-to 120 cm tall native Brazilian shrub, which produces pink or purple flowers, is regarded as a weed and an ornamental plant (Lorenzi, 2002; Pereira et al., 2008). Lantana salvifolia Jacq is found growing wild from Ethiopia to the Congo (Ouamba et al., 2006). Lantana indica Roxb., a wild perennial shrub, native to India, is regarded both as notorious weed and a popular ornamental garden plant (Kumar et al., 2010). ...
... L. salvifolia Jacq is a plant widely used in the Congo as an herbal tea. The decoction of the leaves is used against typhoid fever (Ouamba et al., 2006). L. indica Roxb. is used as a sudorific, intestinal antiseptic and diaphoretic, and in treatment of tetanus, rheumatism and malaria in Indian medicine (Ghisalberti, 2000). ...
Species of the genus Lantana, belonging to the family Verbenaceae, is among the various species studied scientifically. These species are mainly native to the tropical and subtropical regions of the Americas. Currently, they are present in various countries, where they are often grown as ornamental plants. For decades, species of Lantana have been of great interest for phytochemical, biological and pharmacological studies, which have been recently intensified. The components isolated from different species of Lantana cited in the literature constitute the focus of this review. Information ethnopharmacology of Lantana, as well as the activities of their different phytochemicals are discussed. In this review, it was observed that the genus Lantana has been widely studied in relation to its phytochemical components and terpenoids, flavonoids and phenylpropanoids are the more common secondary metabolites in Lantana. All these aspects, considered in this review, allow an evaluation of the ethnopharmacological potential of Lantana for the utilization of the large biomass of these plants.
... Lantana is a genus of about 150 species of perennial flowering plants popularly used as antirheumatic, stimulant, antibacterial, biologic control and as ornamental plant [1]. The essential oil of Lantana species leaves is constituted mainly by sesquiterpenes, specially caryophillene, ß- caryophillene, (E)-caryophillene, isocaryophillene, germacrene D and bicyclogermacrene [2,3,4,5]. ...
The leaves of Lantana montevidensis Briq. (Verbenaceae) were subjected to hydrodistillation, and the essential oil extracted was examined with respect to chemical composition, antibacterial and antibiotic modifying activity by gaseous contact. Among the 19 identified components, β-caryophyllene (31.50%), germacrene D (27.50%) and bicyclogermacrene (13.93%) were the main constituents. The essential oil volatile constituents inhibited the growth of Staphylococcus aureus and Pseudomonas aeruginosa with a MID o 0.25 and > 1 mg/L, respectively. The activity of the antibiotics gentamicin and amikacin was reinforced against S. aureus and P. aeruginosa (with a 102% of amikacin activity against P. aeruginosa) after contact with the volatile components, showing that this oil influences the activity of the antibiotic and may be used as an adjuvant in the antibiotic therapy of respiratory tract bacterial pathogens.
... It can be perceived that to obtain the highest essential oils yield, the collect must be realized after 1:00 p.m., when the yields are more significatives. In many other reports about Lantana genus it was observed aerial part essential oil yield variation (0.01-0.4%)171819 Table 1, the essential oil chemical composition can be found. ...
To verify the composition variation of its essential oil along 24 hours, leaves of Lantana camara Linn. of medicinal plant collection of the Department of Chemical Biology of URCA-Crato–CE, were collected every three hours during one day (of the 07:00 to 19:00 h) in April, 2008. The leaves had its oil extracted by hydro-distillation in Clevenger apparatus during three hours with two repetitions. The chemical composition analysis of the extracted essential oils was carried out in gas chromatography/mass spectroscopy. The phytochemical profile of the essential oils presented significant difference in function of the harvest. The seven most abundant were: germacrene D (24.50-6.15%), biciclogermacrene (33.32-14.27%), spathulenol (25.04-1.06%), eremophilene (20.64-1.93%), valecene (33.70-0.84%), viridiflorene (19.46%) and 1,10-di-epi-cubenol (27.93-21.32). The different result found here indicates the existence of different chemotypes of L. camara
α-humulene, a sesquiterpene found in essential oils of various plant species, has garnered interest due to its potential therapeutic applications. This scoping review aims to consolidate α-humulene's evidence base, informing clinical translation and guiding future research directions. A scoping review was conducted of EMBASE, MEDLINE and PubMed databases up to 14th July 2023. All studies describing original research on α-humulene extraction, pre-clinical and clinical research were included for review. Three-hundred and forty articles were analyzed. α-humulene yields ranged from negligible to 60.90% across plant species. In vitro experiments demonstrated cytotoxicity against adenocarcinomas (such as colorectal, pulmonary, breast, prostatic, lung, and ovarian), with varying responses in other cell models Mechanistic insights revealed its involvement in mitochondrial dysfunction, diminished intracellular glutathione levels, and the induction of oxidative stress. In rodent studies, oral administration of α-humulene at 50 mg/kg reduced inflammation markers in paw edema and ovalbumin-induced airway inflammation. Intraperitoneal administration of α-humulene (50-200 mg/kg) exhibited cannabimimetic properties through cannabinoid 1 and adenosine A2a receptors. α-humulene also exhibited a multitude of properties with potential scope for therapeutic utilization. However, there is a paucity of studies which have successfully translated this research into clinical populations with the associated disease. Potential barriers to clinical translation were identified, including yield variability, limited isolation studies, and challenges associated with terpene bioavailability. Consequently, rigorous pharmacokinetic studies and further mechanistic investigations are warranted to effectively uncover the potential of α-humulene.
The compositions of essential oil obtained from leaves, flowers and fruits of Lantana camara L. growing in wild at Côte d'Ivoire, were investigated by GC and ¹³C NMR. Thirty-seven compounds accounting for 88.3-94.5% of the oils have been identified. The leaf, flower and fruits of L. camara produced sesquiterpene-rich essential oils predominated by (E)-β-caryophyllene and α-humulene, in addition to the important content of sabinene, β-phellandrene and thymol as monoterpenes. It was found the new chemical profiles of L. camara.
