Chemical Composition, Antimicrobial and Antioxidant Properties of the Volatile Oil and Methanol Extract of <i>Xenophyllum Poposum</i>

González, Ana; Tracanna, María I.; Amani, Sara; Schuff, Carola; Poch, Miguel J; Bach, Horacio; Catalán, César A.N.

doi:10.1177/1934578x1200701230

Cited by 26 publications

(21 citation statements)

References 18 publications

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“…As no study investigated the antifungal effect of this latter compound, the activity shown by the use of H. pandurifolim EO might owing to the synergic effect of the whole constituents, even those present in a lesser amount. In fact, several compounds associated with several EOs demonstrating good antifungal activities are reported in the literature such as β -pinene, spathulenol, δ -cadinene, and epi- α -muurolol [ 37 , 38 , 39 , 40 ]. The sensitivity of fungi rather than bacteria was registered again using the H. cooperi EO.…”

Section: Resultsmentioning

confidence: 99%

Volatilome Analyses and In Vitro Antimicrobial Activity of the Essential Oils from Five South African Helichrysum Species

et al. 2020

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Helichrysum genus was used in folk South African medicine to treat various human disorders. As a part of our on-going research addressing the exploitation of South African plants belonging to this genus, five species were investigated for their volatile and antimicrobial activities. The volatile organic compounds (VOCs) and the essential oils (EOs) were analysed by gas chromatography mass spectrometry (GC-MS). Microdilution was the method used for assessing both antimycotic and antibacterial activities, which was also tested by Kirby-Bauer agar disc diffusion. Total monoterpenes (TMs) dominated the VOCs of four species (H. trilineatum (70.6%), H. edwardsii (79.3%), H. cooperi (84.5%), and H. pandurifolium (57.0%)). H. cooperi and H. edwardsii EOs showed the predominance of TMs (68.2% and 84.5%, respectively), while H. pandurifolium and H. trilineatum EOs were characterized by the prevalence of TSs (86.5% and 43.6%, respectively). H. odoratissimum EO evidenced a similar amount of both TMs (49.5%) and TSs (46.4%). Microsporum canis was more sensitive to these EOs. The lowest minimum inhibitory concentration (MIC) was observed with H. pandurifolium and H. edwardsii EOs (0.25%). H. pandurifolium and H. trilineatum had a good effect on Staphylococcus aureus (MIC 5%). These findings open new perspectives for the exploitation of these natural compounds for application in cosmetics and pharmaceutics.

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Section: Resultsmentioning

confidence: 99%

Volatilome Analyses and In Vitro Antimicrobial Activity of the Essential Oils from Five South African Helichrysum Species

et al. 2020

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“…The chemical composition was checked, revealing that H. pandurifolium was rich in viridiflor and contains beta pinene, spathulenol, delta cadinene, and epi-alfa-muurolol [ 123 , 124 , 125 , 126 ], which probably develop a synergistic action. The effectiveness of H. cooperi would be due to the presence of a good amount of terpinen-4-ol [ 127 ] and himachalol [ 128 ], while the richness in tujone of H. edwardsii could explain its ability in inhibiting dermatophytes [ 55 ].…”

Section: Fungal Infectionsmentioning

confidence: 99%

Use of Essential Oils in Veterinary Medicine to Combat Bacterial and Fungal Infections

Ebani

Mancianti

2020

Veterinary Sciences

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Essential oils (EOs) are secondary metabolites of plants employed in folk medicine for a long time thanks to their multiple properties. In the last years, their use has been introduced in veterinary medicine, too. The study of the antibacterial properties of EOs is of increasing interest, because therapies with alternative drugs are welcome to combat infections caused by antibiotic-resistant strains. Other issues could be resolved by EOs employment, such as the presence of antibiotic residues in food of animal origin and in environment. Although the in vitro antimicrobial activity of EOs has been frequently demonstrated in studies carried out on bacterial and fungal strains of different origins, there is a lack of information about their effectiveness in treating infections in animals. The scientific literature reports some studies about in vitro EOs’ activity against animal clinical bacterial and fungal isolates, but in vivo studies are very scanty. The use of EOs in therapy of companion and farm animals should follow careful studies on the toxicity of these natural products in relation to animal species and route of administration. Moreover, considering the different behavior of EOs in relation to both species and strain pathogen, before starting a therapy, an aromatogram should be executed to choose the oil with the best antimicrobial activity.

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“…In the same way as EOs from S. odoratissima, γcadinene was one of the major constituents of the oil. In addition, the compound γ-cadinene was one of the major constituents of EOs from Xenophyllum poposum, which also exhibited pronounced antibacterial activity against two strains of Staphylococcus aureus (González et al, 2012). It is usually assumed that non-polar compounds diffuse easily across cell membranes and kill microorganisms by affecting bacterial metabolic pathways or organelles.…”

Section: Resultsmentioning

confidence: 99%

In vitro antimicrobial activity of Spiranthera odoratissima A. St. Hil. essential oils against foodborne pathogens and food spoilage bacteria

et al. 2020

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In Brazilian folk medicine, Spiranthera odoratissima has been used to treat rheumatism, infection and abdominal pain. Essential oils (EOs) are technological options that may be employed in natural foods due to their antimicrobial activities. This paper aimed to investigate the chemical composition and in vitro antibacterial effects of EOs from S. odoratissima leaves and flowers against foodborne and spoilage bacteria Listeria monocytogenes, Salmonella enteritidis, Salmonella typhimurium, Yersinia enterocolitica, Staphylococcus aureus, Escherichia coli, Clostridium botulinum, Bacillus cereus and Pseudomonas aeruginosa. Minimum inhibitory concentration (MIC) values of EOs were calculated by the broth microdilution method on 96-well microplates. Both GC-FID and GC-MS analyses revealed that the major components determined in EOs from S. odoratissima leaves were β-caryophyllene (23.8%), bicyclogermacrene (10.8%) and δ-cadinene (7.1%). Major constituents found in EOs from its flowers were β-caryophyllene (14.1%), spathulenol (8.1%) and γ-cadinene (7.2%). EOs from S. odoratissima leaves and flowers showed strong antibacterial activity against Yersinia enterocolitica (MIC = 0.30 mg/mL), Staphylococcus aureus (MIC = 0.12 mg/mL), Clostridium botulinum (MIC = 0.30 mg/mL), Bacillus cereus (MIC = 0.20 mg/mL) and Listeria monocytogenes (MIC = 0.25 mg/mL). These EOs could be important natural alternatives to prevent bacterial growth in food products.

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Chemical Composition, Antimicrobial and Antioxidant Properties of the Volatile Oil and Methanol Extract of Xenophyllum Poposum

Cited by 26 publications

References 18 publications

Volatilome Analyses and In Vitro Antimicrobial Activity of the Essential Oils from Five South African Helichrysum Species

Volatilome Analyses and In Vitro Antimicrobial Activity of the Essential Oils from Five South African Helichrysum Species

Use of Essential Oils in Veterinary Medicine to Combat Bacterial and Fungal Infections

In vitro antimicrobial activity of Spiranthera odoratissima A. St. Hil. essential oils against foodborne pathogens and food spoilage bacteria

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