Essential oil chemical composition and antifungal effects on Sclerotium cepivorum of Thymus capitatus wild populations from Calabria, southern Italy

Russo, Mariateresa; Suraci, Francesca; Postorino, S.; Serra, Demetrio; Roccotelli, Angela; Agosteo, G. E.

doi:10.1590/s0102-695x2013005000017

Cited by 44 publications

(36 citation statements)

References 48 publications

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“…In addition to the above findings, it is obvious that the n-hexane extract is only sensitive to the gram positive bacteria, The differences in antibacterial activities of the extract suggest the susceptibility of microorganisms to various chemical components of the extracts. The results is in support of [29] who have established that the differences observed in antimicrobial activities suggest the susceptibility of microorganisms to various chemical components of the oil.…”

Section: Antibacterial Activitysupporting

confidence: 88%

An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing

Daben¹,

Dashak²,

Daben³

et al. 2017

IOSR JAC

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Section: Antibacterial Activitysupporting

confidence: 88%

An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing

Daben¹,

Dashak²,

Daben³

et al. 2017

IOSR JAC

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“…EO of T. boveii contained carvacrol (41.34%), p-cymene (19.80%), thymol (8.92%) and borneol (5.04%), while the major constituents of EO of T. hyemalis were carvacrol (30.25%), thymol (18.32%) and p-cymene (13.21%) [Tepe et al 2011]. The paper of [Russo et al 2013] reported that the essential oils isolated by hydro-distillation from the aerial parts of T. capitatus (L.) Hoffmanns and Link, Lamiaceae from Southern Italy, were characterized by high level of carvacrol, which was the main component (81.52%-78.40%). Similar results were found in the study of [Küçükbay et al 2014], in which carvacrol was a dominant compound with a percentage 66.1% of the essential oil of T pubescens var.…”

Section: Resultsmentioning

confidence: 99%

COMPARISION OF THE COMPOSITIONS, ANTIMICROBIAL AND ANTIOXIDANT ACTIVITIES OF ESSENTIAL OILS FROM THE ENDEMIC SPECIES Thymus malyi Ronninger AND Thymus lykae Degen et Jav.

Marin¹,

Novaković²,

Tešević³

et al. 2018

Acta Sci.Pol.Hortorum Cultus

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In this study, we compared the compositions, antimicrobial and potential antioxidant activities of essential oils of two Thymus endemic, wild-growing species -T. malyi Ronninger and T. lykae Degen et Jav. No information about its composition and biological activities of oils has been reported to the present day. Forty three compounds were identified from T. malyi and major component was α-pinene (26.4%). In the case of T. lykae, forty four compounds were identified, with geranyl acetate (35.1%) as the main component. Antioxidant activities of the oils were evaluated using DPPH assay. The antimicrobial effect of essential oils were tested against Gram-negative, Gram-positive bacteria, and two fungi. Results indicated higher antibacterial activity of the essential oils of T. lykae in comparison with T. malyi, while for antifungal activity, it was reverse. The essential oils from T. malyi and T. lykae possess antioxidant and antimicrobial activities and could be used as a potential source of natural antioxidants for the food industry.

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“…Previous studies have demonstrated that Thymus species have strong insecticide, antioxidant, antibacterial, antifungal, antiviral, anti-inflammatory, and antispasmodic activity [11,16,17]. Different reports have shown that thymol and carvacrol are the main components of thymus EOs which are responsible for their high biological activities [18][19][20][21]. Among this genus, Thymus blecherianus and Riatarum locally called "zaatar" are the most important species from medicinal and aromatic properties and used worldwide for its antimicrobial activities.…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition, Antimicrobial, and Antioxidant Activities of Two Moroccan Thymus Essential Oils

Aouam

Atki

Taroq

et al. 2019

Asian J Pharm Clin Res

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Objective: The aim of the present study is to investigate chemical constituents of Thymus riatarum and Thymus blecherianus essential oils (EOs) as well as to evaluate, for the first time, their antioxidant effect and antibacterial activity against six bacterial strains responsible for nosocomial infections.Methods: The chemical composition of EOs was analyzed using gas chromatography (GC) and GC-mass spectrometry, the antibacterial capacity of the two thymus species was evaluated against six bacteria species: Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumonia, Staphylococcus aureus, Acinetobacter baumannii, and Citrobacter sp. using disk diffusion method and microdilution assay. Finally, the antioxidant activity was measured by four different test systems of assay, namely free radical scavenging activities, ferric reducing/antioxidant power assays, total phenolic, and flavonoid contents.Results: A total of 15 compounds representing 99.6% of T. riatarum oil were identified with thymol (28.8%), borneol (20.0%), and α-phellandrene (13.0%) as the main constituents. Eleven components of T. blecherianus were identified representing 98.2% of the total oil composition; the most abundant constituents were as follows: Carvacrol (45.9%), bornyl acetate (20.1%), and borneol (15.7%). Strong antibacterial activity of the two EOs was identified against all bacterial strains tested. Concerning the antioxidant results, T. riatarum EO exhibited higher antioxidant activity than T. blecherianus in the three assays with an IC50 value equal to 5.75±0.06 mg/ml, which was probably due to its high content of polyphenols (28.95±0.13 mg GAE/g DW). Total flavonoid content was found equal for the two EOs.Conclusion: EO of T. riatarum and T. blecherianus from Morocco can be exploited as a natural antibacterial and antioxidant new potential sources.

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Essential oil chemical composition and antifungal effects on Sclerotium cepivorum of Thymus capitatus wild populations from Calabria, southern Italy

Cited by 44 publications

References 48 publications

An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing

An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing

COMPARISION OF THE COMPOSITIONS, ANTIMICROBIAL AND ANTIOXIDANT ACTIVITIES OF ESSENTIAL OILS FROM THE ENDEMIC SPECIES Thymus malyi Ronninger AND Thymus lykae Degen et Jav.

Chemical Composition, Antimicrobial, and Antioxidant Activities of Two Moroccan Thymus Essential Oils

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