Pub Date : 2024-01-02DOI: 10.1080/10412905.2023.2300365
Zina Benissa, Francoise Dumas, Nahed Fakhfakh, Sami Zouari
The present study described the variation of the chemical composition of different organ essential oils from cultivated and spontaneous Rosmarinus officinalis collected from some regions of Souther...
本研究描述了从南部一些地区采集的栽培和自生蔷薇精油中不同器官精油化学成分的变化。
{"title":"Chemical variability and antioxidant activities of spontaneous and cultivated Rosmarinus officinalis essential oils according to the geographical origin of their exploited organs","authors":"Zina Benissa, Francoise Dumas, Nahed Fakhfakh, Sami Zouari","doi":"10.1080/10412905.2023.2300365","DOIUrl":"https://doi.org/10.1080/10412905.2023.2300365","url":null,"abstract":"The present study described the variation of the chemical composition of different organ essential oils from cultivated and spontaneous Rosmarinus officinalis collected from some regions of Souther...","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"78 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139078115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper Juniperus phoenicea L. leaves essential oil (EO) and hydrolate (Hy) were analyzed, for the first time, by gas-chromatography/mass spectrometry (GC/MS) and headspace-gas chromatography...
{"title":"Phytochemical analysis and evaluation of antibacterial, antifungal, antioxidant and anti-inflammatory potential of Juniperus phoenicea subsp. phoenicea L. essential oil and hydrolate from central Italy","authors":"Maura Di Vito, Francesca Bugli, Margherita Cacaci, Debora Talamonti, Giulia Lombardini, Stefania Garzoli","doi":"10.1080/10412905.2023.2299860","DOIUrl":"https://doi.org/10.1080/10412905.2023.2299860","url":null,"abstract":"In this paper Juniperus phoenicea L. leaves essential oil (EO) and hydrolate (Hy) were analyzed, for the first time, by gas-chromatography/mass spectrometry (GC/MS) and headspace-gas chromatography...","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"5 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139057645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-21DOI: 10.1080/10412905.2023.2295905
Abdenour Adjaoud, Hocine Laouer, Olivera Politeo, Hocine Abbaci, Franco Burčul, Kamal Moussi, Ouarda Adjaoud-Benkhellat, Mathieu Paoli, Félix Tomi
The essential oils (EOs) from needles, twigs and cones of Abies numidica, an endemic tree from Algeria, were analysed by gas chromatography (GC), gas chromatography-mass spectrometry (GC-MS) and 13...
{"title":"Chemical profile, enzyme inhibitory and antioxidant activities of essential oils of an endemic Algerian species: Abies numidica. De Lannoy ex Carrière","authors":"Abdenour Adjaoud, Hocine Laouer, Olivera Politeo, Hocine Abbaci, Franco Burčul, Kamal Moussi, Ouarda Adjaoud-Benkhellat, Mathieu Paoli, Félix Tomi","doi":"10.1080/10412905.2023.2295905","DOIUrl":"https://doi.org/10.1080/10412905.2023.2295905","url":null,"abstract":"The essential oils (EOs) from needles, twigs and cones of Abies numidica, an endemic tree from Algeria, were analysed by gas chromatography (GC), gas chromatography-mass spectrometry (GC-MS) and 13...","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"31 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138826660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-18DOI: 10.1080/10412905.2023.2280900
Tyler M. Wilson, Ariel Poulson, Brett J. Murphy, Brandon Nebeker, Aurélien Cuchet, Frédéric Schiets, Hérve Casabianca, Richard E. Carlson
Authentic Lavandula angustifolia (lavender) essential oil samples (n = 41) were procured from six producing countries. Essential oils were analyzed to determine physical properties and to determine...
{"title":"Authentication of Lavandula angustifolia Mill. (Lamiaceae) essential oil using physical property, gas chromatography, enantiomeric selectivity, and stable isotope analyses","authors":"Tyler M. Wilson, Ariel Poulson, Brett J. Murphy, Brandon Nebeker, Aurélien Cuchet, Frédéric Schiets, Hérve Casabianca, Richard E. Carlson","doi":"10.1080/10412905.2023.2280900","DOIUrl":"https://doi.org/10.1080/10412905.2023.2280900","url":null,"abstract":"Authentic Lavandula angustifolia (lavender) essential oil samples (n = 41) were procured from six producing countries. Essential oils were analyzed to determine physical properties and to determine...","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"23 1","pages":""},"PeriodicalIF":3.0,"publicationDate":"2023-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138533818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTIn this study, the chromatographic characteristics of 100 different pyrethroids including ester derivatives of cyclopropanecarboxylic acids were analyzed by measuring their logarithmic kovats retention index (log KRI) using a quantitative structure-retention relationship (QSRR). The log KRI of the studied pyrethroids were modeled by genetic algorithm-structure retention relationships (GA-QSRR) based on linear and nonlinear regression models. The descriptors such as HNar, H0v, and H5p, which express the GETAWAY (geometry, topology, and atom-weights assembly) compound descriptors, have a reasonable correlation with the log KRI. We assessed the predictive strength of the BP-ANN model and demonstrated the potential of the model using various statistical parameters. The statistical parameters such as Q2F1, Q2F2, Q2F3, AAD, RMSE and CCC were used to evaluate the predictive ability of the BP-ANN model. In predicting the log KRI of pyrethroids, the results indicated that the BP-ANN model is more reliable and accurate than the BW-MLR model. KEYWORDS: BP-ANNBW-MLRQSPRKovats retention indexpyrethrin essential oil Disclosure statementNo potential conflict of interest was reported by the authors.
{"title":"QSPR models for predicting the Kovats retention indices of synthetic ester derivatives based on pyrethrin essential oil","authors":"Mostafa Sadeghi, Esmat Mohammadinasab, Tahereh Momeni Isfahani","doi":"10.1080/10412905.2023.2265376","DOIUrl":"https://doi.org/10.1080/10412905.2023.2265376","url":null,"abstract":"ABSTRACTIn this study, the chromatographic characteristics of 100 different pyrethroids including ester derivatives of cyclopropanecarboxylic acids were analyzed by measuring their logarithmic kovats retention index (log KRI) using a quantitative structure-retention relationship (QSRR). The log KRI of the studied pyrethroids were modeled by genetic algorithm-structure retention relationships (GA-QSRR) based on linear and nonlinear regression models. The descriptors such as HNar, H0v, and H5p, which express the GETAWAY (geometry, topology, and atom-weights assembly) compound descriptors, have a reasonable correlation with the log KRI. We assessed the predictive strength of the BP-ANN model and demonstrated the potential of the model using various statistical parameters. The statistical parameters such as Q2F1, Q2F2, Q2F3, AAD, RMSE and CCC were used to evaluate the predictive ability of the BP-ANN model. In predicting the log KRI of pyrethroids, the results indicated that the BP-ANN model is more reliable and accurate than the BW-MLR model. KEYWORDS: BP-ANNBW-MLRQSPRKovats retention indexpyrethrin essential oil Disclosure statementNo potential conflict of interest was reported by the authors.","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"15 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134991516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-09DOI: 10.1080/10412905.2023.2276102
Shabnam Khanialiakbari, Rasoul Yousefimashouf, Mohammad Taheri
ABSTRACTBackground Multidrug-resistant Enterobacter strains that harbour Klebsiella pneumoniae carbapenemase and Extended Spectrum β-Lactamases genes are a therapeutic challenge in hospitals that have made infection control and antibiotic therapy difficult and use of natural compounds such as thymol is interesting in the treatment of infections.Methods Sixty-seven Enterobacter spp. isolates were obtained from patients admitted to hospitals in Hamadan and Tehran. Antimicrobial susceptibility, ESBLs and KPC genes detection and biofilm production of isolates were measured.Findings The results showed that the highest and lowest antibiotic resistance were related to ceftazidime (82.1%) and tigecycline (3%), respectively. Also, 79.1% of the isolates were MDR. The highest presence of genes was related to TEM (100%), SHV (82%), CTX-M (77%) and KPC (8.96%) genes. The MIC and MBIC of thymol were obtained 8-31 μg/ml and16-62 μg/ml, respectively.Conclusion Use of thymol, as an aid in antibiotic therapy is recommended.KEYWORDS: Thymolantimicrobial susceptibilitybiofilm productionenterobacterbeta lactamase AcknowledgmentsThe authors are thankful to the Research and Technology of Hamadan University of Medical Sciences, Hamadan, Iran for their financial support.Disclosure statementNo potential conflict of interest was reported by the author(s).Authors’ contributionsR. Y and M. T designed the study. Sh. Kh, and M. T contributed to the experimental studies and drafted the work. Sh. Kh, and M. T contributed to the sample collections. All authors read and approved the final manuscript.Ethical approvalThis study was approved by the Ethics Committee of Hamadan University of Medical Sciences, Hamadan, Iran (Ethical approval No. IR.UMSHA.REC.1399.283).Additional informationFundingThis study was funded by Hamadan University of Medical Sciences, Hamadan, Iran (Grant No. 9910307582).
{"title":"Evaluation of thymol effect on antimicrobial susceptibility and biofilm production in clinical <i>Enterobacter spp</i> . producing <i>ESBLs</i> and <i>KPC</i> enzymes","authors":"Shabnam Khanialiakbari, Rasoul Yousefimashouf, Mohammad Taheri","doi":"10.1080/10412905.2023.2276102","DOIUrl":"https://doi.org/10.1080/10412905.2023.2276102","url":null,"abstract":"ABSTRACTBackground Multidrug-resistant Enterobacter strains that harbour Klebsiella pneumoniae carbapenemase and Extended Spectrum β-Lactamases genes are a therapeutic challenge in hospitals that have made infection control and antibiotic therapy difficult and use of natural compounds such as thymol is interesting in the treatment of infections.Methods Sixty-seven Enterobacter spp. isolates were obtained from patients admitted to hospitals in Hamadan and Tehran. Antimicrobial susceptibility, ESBLs and KPC genes detection and biofilm production of isolates were measured.Findings The results showed that the highest and lowest antibiotic resistance were related to ceftazidime (82.1%) and tigecycline (3%), respectively. Also, 79.1% of the isolates were MDR. The highest presence of genes was related to TEM (100%), SHV (82%), CTX-M (77%) and KPC (8.96%) genes. The MIC and MBIC of thymol were obtained 8-31 μg/ml and16-62 μg/ml, respectively.Conclusion Use of thymol, as an aid in antibiotic therapy is recommended.KEYWORDS: Thymolantimicrobial susceptibilitybiofilm productionenterobacterbeta lactamase AcknowledgmentsThe authors are thankful to the Research and Technology of Hamadan University of Medical Sciences, Hamadan, Iran for their financial support.Disclosure statementNo potential conflict of interest was reported by the author(s).Authors’ contributionsR. Y and M. T designed the study. Sh. Kh, and M. T contributed to the experimental studies and drafted the work. Sh. Kh, and M. T contributed to the sample collections. All authors read and approved the final manuscript.Ethical approvalThis study was approved by the Ethics Committee of Hamadan University of Medical Sciences, Hamadan, Iran (Ethical approval No. IR.UMSHA.REC.1399.283).Additional informationFundingThis study was funded by Hamadan University of Medical Sciences, Hamadan, Iran (Grant No. 9910307582).","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":" 36","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135192066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.1080/10412905.2023.2270547
Parisa Ebadi, Maryam Azizkhani
ABSTRACTThe objective of this research was to nanoencapsulate ajwain (Carum copticum L.) essential oil (EO) in cellulose acetate (CA) using the electrospinning technique and evaluate its antioxidant and antimicrobial activity. The main components of ajwain EO were thymol, p-cymene, and γ- terpinene. A zeta potential of −40.11, −37.85, −35.50, and −31.74 mV was found for nanofibers of pure CA, CA/EO 1%, 2.5%, and 5%, respectively. According to SEM images, CA electrospun nanofiber loaded with different concentrations of ajwain EO had nano-scale size and uniform morphology. The antibacterial activity enhanced with higher concentrations of EO, and it was higher for nanoencapsulated EO at the same concentration. The fibers loaded with EO were effective against the microbial strains according to the following decreasing order: E. coli > S. enteritidis > S. dysenteriae > L. monocytogenes > S. aureus. Results of the antioxidant assays showed that the ABTS and DPPH scavenging capacity and reduction potential of Fe3+ of free and nanoencapsulated EO were as follows: CA/EO 5% = CA/EO 2.5% > EO 5% > CA/EO 1% > EO 2.5% > EO 1%. Antioxidant and antibacterial activities of all EO-loaded CA nanofibers were higher than free EO.KEYWORDS: Ajwaincellulose acetateelectrospinningessential oilnanoencapsulation Disclosure statementThe authors declare that they do not have any conflict of interest.Additional informationFundingThis work was supported by a research grant from the Amol University of Special Modern Technologies, Amol, Iran.
摘要本研究采用静电纺丝技术将黄豆精油(Carum copticum L.)纳米包封在醋酸纤维素(CA)中，并评价其抗氧化和抗菌活性。主要成分为百里酚、对伞花烃和γ-萜烯。纯CA、CA/EO浓度为1%、2.5%和5%的纳米纤维的zeta电位分别为- 40.11、- 37.85、- 35.50和- 31.74 mV。SEM图像显示，负载不同浓度的ajwaain EO的CA静电纺纳米纤维具有纳米级的尺寸和均匀的形貌。EO的抑菌活性随着EO浓度的增加而增强，相同浓度的EO纳米胶囊的抑菌活性更高。负载EO纤维的抑菌效果依次为大肠杆菌>肠炎链球菌>痢疾链球菌>单核增生乳杆菌>金黄色葡萄球菌。结果表明，游离EO和纳米封装EO对ABTS和DPPH的清除能力和对Fe3+的还原电位依次为:CA/EO 5% = CA/EO 2.5% > EO 5% > CA/EO 1% > EO 2.5% > EO 1%。负载EO的CA纳米纤维的抗氧化和抗菌活性均高于游离EO。关键词:ajwain醋酸纤维素电纺丝精油纳米胶囊披露声明作者声明他们没有任何利益冲突。本研究得到了伊朗Amol特殊现代技术大学的研究资助。
{"title":"Evaluation of antimicrobial and antioxidant activity of <i>Carum copticum</i> L. essential oil encapsulated in electrospun cellulose acetate nanofibers","authors":"Parisa Ebadi, Maryam Azizkhani","doi":"10.1080/10412905.2023.2270547","DOIUrl":"https://doi.org/10.1080/10412905.2023.2270547","url":null,"abstract":"ABSTRACTThe objective of this research was to nanoencapsulate ajwain (Carum copticum L.) essential oil (EO) in cellulose acetate (CA) using the electrospinning technique and evaluate its antioxidant and antimicrobial activity. The main components of ajwain EO were thymol, p-cymene, and γ- terpinene. A zeta potential of −40.11, −37.85, −35.50, and −31.74 mV was found for nanofibers of pure CA, CA/EO 1%, 2.5%, and 5%, respectively. According to SEM images, CA electrospun nanofiber loaded with different concentrations of ajwain EO had nano-scale size and uniform morphology. The antibacterial activity enhanced with higher concentrations of EO, and it was higher for nanoencapsulated EO at the same concentration. The fibers loaded with EO were effective against the microbial strains according to the following decreasing order: E. coli > S. enteritidis > S. dysenteriae > L. monocytogenes > S. aureus. Results of the antioxidant assays showed that the ABTS and DPPH scavenging capacity and reduction potential of Fe3+ of free and nanoencapsulated EO were as follows: CA/EO 5% = CA/EO 2.5% > EO 5% > CA/EO 1% > EO 2.5% > EO 1%. Antioxidant and antibacterial activities of all EO-loaded CA nanofibers were higher than free EO.KEYWORDS: Ajwaincellulose acetateelectrospinningessential oilnanoencapsulation Disclosure statementThe authors declare that they do not have any conflict of interest.Additional informationFundingThis work was supported by a research grant from the Amol University of Special Modern Technologies, Amol, Iran.","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACTThe first chemical and enantioselective analyses of the essential oil from the leaves of Mauria heterophylla Kunth were carried out. The dry plant materialproduced an essential oil with a 0.09 ± 0.05% yield by weight. The volatile fraction was submitted to GC-MS (qualitative) and GC-FID (quantitative) analyses, on two different stationary phases. A total of forty-four constituents were detected and quantified with at least one column, corresponding to about 85.5% of the whole oil mass. Limonene (15.2%), (E)-β-caryophyllene (11.1%), α-phellandrene (10.9%), germacrene D (6.6%), α-pinene (6.4%), myrcene (3.9%), β-phellandrene (2.8%), bicyclogermacrene (2.8%), (E)-β-farnesene (2.2%) and δ-cadinene (1.2%) were major components. Furthermore, the study was complemented with the enantioselective analysis of eleven common chiral terpenes, carried out on two β-cyclodextrin-based chiral selectors. Among the chiral metabolites, (1R,4S)-(+)-camphene, (1R,5R)-(+)-β-pinene, (S)-(+)-α-phellandrene and (S)-(+)-β-phellandrene were enantiomerically pure, whereas α-pinene, sabinene, limonene, linalool, terpinen-4-ol, α-terpineol and germacrene D were present as scalemic mixtures.KEYWORDS: Mauria heterophyllagas chromatographymass spectrometryenantiomersβ-cyclodextrinEcuador Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"The essential oil from leaves of <i>Mauria heterophylla</i> Kunth (Anacardiaceae): chemical and enantioselective analyses","authors":"Katherine Vivanco, José Vinicio Montesinos, Nixon Cumbicus, Omar Malagón, Gianluca Gilardoni","doi":"10.1080/10412905.2023.2266430","DOIUrl":"https://doi.org/10.1080/10412905.2023.2266430","url":null,"abstract":"ABSTRACTThe first chemical and enantioselective analyses of the essential oil from the leaves of Mauria heterophylla Kunth were carried out. The dry plant materialproduced an essential oil with a 0.09 ± 0.05% yield by weight. The volatile fraction was submitted to GC-MS (qualitative) and GC-FID (quantitative) analyses, on two different stationary phases. A total of forty-four constituents were detected and quantified with at least one column, corresponding to about 85.5% of the whole oil mass. Limonene (15.2%), (E)-β-caryophyllene (11.1%), α-phellandrene (10.9%), germacrene D (6.6%), α-pinene (6.4%), myrcene (3.9%), β-phellandrene (2.8%), bicyclogermacrene (2.8%), (E)-β-farnesene (2.2%) and δ-cadinene (1.2%) were major components. Furthermore, the study was complemented with the enantioselective analysis of eleven common chiral terpenes, carried out on two β-cyclodextrin-based chiral selectors. Among the chiral metabolites, (1R,4S)-(+)-camphene, (1R,5R)-(+)-β-pinene, (S)-(+)-α-phellandrene and (S)-(+)-β-phellandrene were enantiomerically pure, whereas α-pinene, sabinene, limonene, linalool, terpinen-4-ol, α-terpineol and germacrene D were present as scalemic mixtures.KEYWORDS: Mauria heterophyllagas chromatographymass spectrometryenantiomersβ-cyclodextrinEcuador Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135198801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-28DOI: 10.1080/10412905.2023.2252416
Strub Daniel Jan
ABSTRACT Thirteen commercial Tasmanian essential oils were evaluated for their antimicrobial activity against 14 human pathogens and cosmetic contaminants including Enterococcus hirae, Kocuria rhizophila, Staphylococcus epidermidis, Propionibacterium acnes, Staphylococcus aureus, Escherichia coli, Klebsiella aerogenes, Klebsiella pneumoniae, Pluralibacter gergoviae, Pseudomonas fluorescens, Burkholderia cepacia, Pseudomonas putida, Aspergillus brasiliensis, and Aspergillus fumigatus. The antimicrobial activities of various essential oils were evaluated using the AlamarBlue Cell Viability Assay, covering a testing concentration range from 3.125 to 800 µg/mL. Essential oils were deemed active if their minimum inhibitory concentration (MIC) value was less than or equal to 800 µg/mL. The essential oils of Rosemary (Rosmarinus officinalis ct. α-pinene), Parsley Herb (Petroselinum crispum), and Bitter Fennels (Foeniculum vulgare) demonstrated significant growth inhibitory effects on one microorganism (P. fluorescens) within an MIC value of ≤ 800 µg/mL. Big Badja Gum (Eucalyptus badjensis), Blue Gum (Eucalyptus globulus), Peppermint (Mentha piperita), and Lavender (Lavandula angustifolia) essential oils inhibited the growth of two different microorganisms. Southern Rosalina (Melaleuca ericifolia), Parsley Seed (Petroselinum crispum), Smoky Tea Tree (Leptospermum glaucescens), and Kunzea (Kunzea ambigua) essential oils exhibited an MIC value of less than or equal to 800 µg/mL against 4, 5, 6, and 8 microorganisms respectively. Notably, Coastal Tea Tree (Leptospermum laevigatum) essential oil displayed the most profound antimicrobial activity, inhibiting 11 out of 15 microbial strains within an MIC range of 50–800 µg/mL. The results of the gas chromatography analysis showed that the coastal tea tree essential oil was composed primarily of monoterpenes, with smaller amounts of sesquiterpenes and their oxygenated derivatives. 35 Compounds were identified, representing 95.50% of the compounds in the coastal tea tree essential oil. The main constituents of this essential oil were α-pinene (34.83%), followed by α- and β-eudesmols (10.21% total), and limonene (9.56%).
{"title":"In-vitro antimicrobial activity of essential oils of Tasmania","authors":"Strub Daniel Jan","doi":"10.1080/10412905.2023.2252416","DOIUrl":"https://doi.org/10.1080/10412905.2023.2252416","url":null,"abstract":"ABSTRACT Thirteen commercial Tasmanian essential oils were evaluated for their antimicrobial activity against 14 human pathogens and cosmetic contaminants including Enterococcus hirae, Kocuria rhizophila, Staphylococcus epidermidis, Propionibacterium acnes, Staphylococcus aureus, Escherichia coli, Klebsiella aerogenes, Klebsiella pneumoniae, Pluralibacter gergoviae, Pseudomonas fluorescens, Burkholderia cepacia, Pseudomonas putida, Aspergillus brasiliensis, and Aspergillus fumigatus. The antimicrobial activities of various essential oils were evaluated using the AlamarBlue Cell Viability Assay, covering a testing concentration range from 3.125 to 800 µg/mL. Essential oils were deemed active if their minimum inhibitory concentration (MIC) value was less than or equal to 800 µg/mL. The essential oils of Rosemary (Rosmarinus officinalis ct. α-pinene), Parsley Herb (Petroselinum crispum), and Bitter Fennels (Foeniculum vulgare) demonstrated significant growth inhibitory effects on one microorganism (P. fluorescens) within an MIC value of ≤ 800 µg/mL. Big Badja Gum (Eucalyptus badjensis), Blue Gum (Eucalyptus globulus), Peppermint (Mentha piperita), and Lavender (Lavandula angustifolia) essential oils inhibited the growth of two different microorganisms. Southern Rosalina (Melaleuca ericifolia), Parsley Seed (Petroselinum crispum), Smoky Tea Tree (Leptospermum glaucescens), and Kunzea (Kunzea ambigua) essential oils exhibited an MIC value of less than or equal to 800 µg/mL against 4, 5, 6, and 8 microorganisms respectively. Notably, Coastal Tea Tree (Leptospermum laevigatum) essential oil displayed the most profound antimicrobial activity, inhibiting 11 out of 15 microbial strains within an MIC range of 50–800 µg/mL. The results of the gas chromatography analysis showed that the coastal tea tree essential oil was composed primarily of monoterpenes, with smaller amounts of sesquiterpenes and their oxygenated derivatives. 35 Compounds were identified, representing 95.50% of the compounds in the coastal tea tree essential oil. The main constituents of this essential oil were α-pinene (34.83%), followed by α- and β-eudesmols (10.21% total), and limonene (9.56%).","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"241 1","pages":"500 - 508"},"PeriodicalIF":3.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76966831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-22DOI: 10.1080/10412905.2023.2247392
G. Yılmaz, Gözde Öztürk, B. Demirci
ABSTRACT Salvia aytachii Vural & Adıgüzel species belong to the Lamiaceae family. It is an endemic plant and is locally known as ‘Ay Şalbası’. Salvia species are generally known as adaçayı in Anatolia. It has a wide variety of traditional uses concerning the digestive system. In this study, cross-sections were taken from the leaves and stem to determine the anatomical features of S. aytachii. The characteristic elements were determined with the help of a microscope. Chemical components of the essential oil were determined by Gas Chromatography–Flame Ionization Detector (GC-FID) and Gas Chromatography-Mass Spectrometry (GC-MS) systems. A total of 79 compounds corresponding to 91.1% of S. aytachii essential oil were determined. Major compounds were identified as camphor (20.3%), 1,8-cineole (20.0%), camphene (6.0%), myrcene (5.6%), valeranone (5.5%,) borneol (5.0%) and α-pinene (4.3%). To evaluate in vitro antimicrobial activity of the essential oil, broth microdilution method was used against Staphylococcus aureus ATCC 6538, Escherichia coli NRRL B-3008, Bacillus cereus NRRL B-3711, Bacillus subtilis NRRL B-4378 and Candida albicans ATCC 90,028. The results were found to be significant in terms of antimicrobial efficacy.
{"title":"Anatomical investigation, essential oil composition and antimicrobial activity of Salvia aytachii species from Turkey","authors":"G. Yılmaz, Gözde Öztürk, B. Demirci","doi":"10.1080/10412905.2023.2247392","DOIUrl":"https://doi.org/10.1080/10412905.2023.2247392","url":null,"abstract":"ABSTRACT Salvia aytachii Vural & Adıgüzel species belong to the Lamiaceae family. It is an endemic plant and is locally known as ‘Ay Şalbası’. Salvia species are generally known as adaçayı in Anatolia. It has a wide variety of traditional uses concerning the digestive system. In this study, cross-sections were taken from the leaves and stem to determine the anatomical features of S. aytachii. The characteristic elements were determined with the help of a microscope. Chemical components of the essential oil were determined by Gas Chromatography–Flame Ionization Detector (GC-FID) and Gas Chromatography-Mass Spectrometry (GC-MS) systems. A total of 79 compounds corresponding to 91.1% of S. aytachii essential oil were determined. Major compounds were identified as camphor (20.3%), 1,8-cineole (20.0%), camphene (6.0%), myrcene (5.6%), valeranone (5.5%,) borneol (5.0%) and α-pinene (4.3%). To evaluate in vitro antimicrobial activity of the essential oil, broth microdilution method was used against Staphylococcus aureus ATCC 6538, Escherichia coli NRRL B-3008, Bacillus cereus NRRL B-3711, Bacillus subtilis NRRL B-4378 and Candida albicans ATCC 90,028. The results were found to be significant in terms of antimicrobial efficacy.","PeriodicalId":15782,"journal":{"name":"Journal of Essential Oil Research","volume":"252 1","pages":"449 - 460"},"PeriodicalIF":3.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83595732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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