scholarly journals Anti-Candida Activity of Essential Oils from Eucalyptus species. A Preliminary Study

2018 ◽  
Vol 8 (3) ◽  
Author(s):  
Janaina Priscila Barbosa
Keyword(s):  
Essential Oils ◽  
Eucalyptus Species ◽  
Preliminary Study

scholarly journals Antimicrobial Activity of Several Cineole-Rich Western Australian Eucalyptus Essential Oils

2018 ◽  
Vol 6 (4) ◽  
pp. 122 ◽  
Author(s):  
Fahad Aldoghaim ◽  
Gavin Flematti ◽  
Katherine Hammer
Keyword(s):  
Mass Spectrometry ◽  
Antimicrobial Activity ◽  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Antimicrobial Agents ◽  
Gas Chromatography Mass Spectrometry ◽  
Eucalyptus Species ◽  
Broth Microdilution ◽  
Main Component ◽  
Western Australian

Essential oils from the Western Australian (WA) Eucalyptus mallee species Eucalyptus loxophleba, Eucalyptus polybractea, and Eucalyptus kochii subsp. plenissima and subsp. borealis were hydrodistilled from the leaves and then analysed by gas chromatography–mass spectrometry in addition to a commercial Eucalyptus globulus oil and 1,8-cineole. The main component of all oils was 1,8-cineole at 97.32% for E. kochii subsp. borealis, 96.55% for E. kochii subsp. plenissima, 82.95% for E. polybractea, 78.78% for E. loxophleba 2, 77.02% for E. globulus, and 66.93% for E. loxophleba 1. The Eucalyptus oils exhibited variable antimicrobial activity determined by broth microdilution, with E. globulus and E. polybractea oils showing the highest activities. The majority of microorganisms were inhibited or killed at concentrations ranging from 0.25% to 8.0% (v/v). Enterococcus faecalis and Candida albicans were the least susceptible organisms, whilst Acinetobacter baumannii was the most sensitive. In conclusion, all oils from WA Eucalyptus species showed microorganism inhibitory activity, although this varied according to both the Eucalyptus species and the microorganism tested. These data demonstrate that WA Eucalyptus oils show activity against a range of medically important pathogens and therefore have potential as antimicrobial agents.

scholarly journals Chemical composition and antibacterial activities of seven Eucalyptus species essential oils leaves

2015 ◽  
Vol 48 (1) ◽  
pp. 7 ◽  
Author(s):  
Khaled Sebei ◽  
Fawzi Sakouhi ◽  
Wahid Herchi ◽  
Mohamed Khouja ◽  
Sadok Boukhchina
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antibacterial Activities ◽  
Eucalyptus Species

The Expression of Distinctive Secondary Metabolites by Different Eucalyptus spp

1992 ◽  
Vol 45 (11) ◽  
pp. 1919
Author(s):  
RM Carman
Keyword(s):  
Secondary Metabolites ◽  
Essential Oils ◽  
Secondary Metabolite ◽  
Eucalyptus Species ◽  
Metabolite Level

A survey of the essential oils of various Eucalyptus species shows that there are sufficient compounds present to support the expectation that differences between species will be expressed or accompanied at the secondary metabolite level by different chemicals, rather than by a different mix of similar chemicals.

scholarly journals Chemical Composition and in-Vitro Evaluation of the Antimicrobial and Antioxidant Activities of Essential Oils Extracted from Seven Eucalyptus Species

Molecules ◽  
2015 ◽  
Vol 20 (11) ◽  
pp. 20487-20498 ◽  
Author(s):  
Abdul Ghaffar ◽  
Muhammad Yameen ◽  
Shumaila Kiran ◽  
Shagufta Kamal ◽  
Fatima Jalal ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Eucalyptus Species ◽  
In Vitro Evaluation

Chemical Characterization of the Essential Oils of Eucalyptus.grandis×Eucalyptus.urophylla Hybrids and Six Pure Eucalyptus species Grown in Guangxi (China)

2014 ◽  
Vol 1033-1034 ◽  
pp. 200-208
Author(s):  
Feng Lai Lu ◽  
Yue Yuan Chen ◽  
Jiao Hong Wei ◽  
Yong Lin Huang ◽  
Dian Peng Li ◽  
...  
Keyword(s):  
Essential Oils ◽  
Chemical Characterization ◽  
Hierarchical Cluster ◽  
The Other ◽  
Eucalyptus Species ◽  
Oil Composition ◽  
Pure Species ◽  
Species Analysis ◽  
Total Oil

Hydrodistillation of the fresh leaves of E.grandis×E.urophylla hybrids and pure species E.grandis, E.urophylla, E.pellita, E.camaldulensis, E. dunni, and E.saligna collected from the trees grown in Guangxi Huangmian Forest (China), afforded essential oils in yields varying from 0.24±0.15% to 5.36±0.28%, according to the species. Analysis by GC (FID) and GC/MS allowed the identification of 67 compounds, representing 82.55% to 91.03% of the total oil composition. The dominant compounds were 1,8-cineole in E.saligna, E.urophylla, E.grandis×E.urophylla, E.grandis, E.pellita and E. dunni (67.48, 57.12, 48.21, 23.64, 20.34, 20.22%), p-Cymene in E.camaldulensis,E. dunni and E.grandis(21.32, 14.74, 13.38%), α-pinene in E.grandis and E.grandis×E.urophylla (21.77, 15.55%), α-terpinene in E. dunni and E.grandis (17.96, 9.35%), α-terpineol in E.pellita and E.saligna (19.24,11.54%), respectively. Hierarchical Cluster Analysis separated the characterized essential oils into two groups, each constituting a chemotype. E.grandis×E.urophylla and E.urophylla were classified in the same group, while E.grandis in the other.

scholarly journals Essential Oils from the Leaves of Ocimum Basilicum L., Persicaria Odorata and Coriandrum Sativum L. In Malaysia: Antiurolithic Activity Study Based On Calcium Oxalate Crystallisation

2021 ◽  
Vol 15 (2) ◽  
pp. 13-25
Author(s):  
Nurul Elyni Mat Shaari ◽  
◽  
Deny Susanti ◽  
Shafida Abd Hamid ◽  
◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Essential Oils ◽  
Crystal Size ◽  
Therapeutic Potential ◽  
Control Sample ◽  
Calcium Oxalate Monohydrate ◽  
Adverse Side Effect ◽  
High Concentration ◽  
Synthetic Drugs ◽  
Preliminary Study

Calcium oxalate is one of the most common components in urolithiasis. Its treatment includes the use of synthetic drugs, ultrasound and surgery. However, cheaper alternative treatment using herbal medicine with less adverse side effect is preferred. Essential oils from Thai basil (Ocimum bacilicum L.), Vietnamese coriander (Persicaria odorata) and Chinese parsley (Coriandum sativum L.) were extracted and investigated for antiurolithic activity based on calcium oxalate crystallisation. Most of the crystals formed in control sample were hexagonal calcium oxalate monohydrate with sizes ranging between 3 to 4 m. The size of the crystals was found to be slightly reduced in O. bacilicum oil (2-4 m) at high concentration with less aggregation of crystals. Samples with P. odorata oil gave smaller crystal size (3 m) mainly in dehydrate form and the oil was also found to inhibit the aggregation of the crystals at high concentration. C. sativum oil enhanced crystallisation (5-6 m) with increased concentration and showed high aggregation of the crystals. This preliminary study shows the therapeutic potential of these medicinal plants to be used in traditional anti-urolithic therapy.

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