scholarly journals Chemical analysis andin vitroantiviral and antifungal activities of essential oils fromGlechon spathulataandGlechon marifolia

2014 ◽  
Vol 53 (5) ◽  
pp. 682-688 ◽  
Author(s):  
Caroline R. Venturi ◽  
Leticia J. Danielli ◽  
Fernanda Klein ◽  
Miriam A. Apel ◽  
Jarbas A. Montanha ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Essential Oils ◽  
Antifungal Activities

Chemical Composition and Antifungal Activities of Essential Oils ofSatureja thymbraL. andSalvia pomiferassp.calycina(Sm.) Hayek

2006 ◽  
Vol 18 (1) ◽  
pp. 115-117 ◽  
Author(s):  
Jasmina Glamočlija ◽  
Marina Soković ◽  
Jelena Vukojević ◽  
Ivanka Milenković ◽  
L. J.L.D. Van Griensven
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Antifungal Activities

scholarly journals Evaluation of vapor-phase antifungal activities of selected plant essential oils against fungal strains growing on bread food model

10.5219/1483 ◽  
2021 ◽  
Vol 15 ◽  
pp. 210-217
Author(s):  
Veronika Valková ◽  
Hana Ďúranová ◽  
Lucia Galovičová ◽  
Eva Ivanišová ◽  
Miroslava Kačániová
Keyword(s):  
Growth Inhibition ◽  
Essential Oils ◽  
Vapor Phase ◽  
Mycelial Growth ◽  
Antioxidant Activities ◽  
Colony Growth ◽  
Promising Alternative ◽  
Antifungal Activities ◽  
In Situ Conditions ◽  
Dpph Method

The current study aimed to investigate antifungal activities of two commercially available essential oils (EOs), specifically Tea tree oil (Melaleuca alternifolia; TTEO) and St. John's wort oil (Hypericum perforatum; HPEO) against three Penicillium (P.) species: P. citrinum, P. expansum, and P. crustosum in in situ conditions. For this purpose, EOs were applied in the vapor phase to determine the growth inhibition of fungi artificially inoculated on sliced bread. Changes in colony growth rate were evaluated as markers for the mycelial growth inhibition (MGI) effect of the EOs. The antioxidant activities of the EOs were evaluated using the DPPH method. The moisture content (MC) and water activity (aw) of bread as a substrate for fungal growth were also measured. From the DPPH assay, we have found that both EOs (TTEO, HPEO) exhibited strong antioxidant activity (64.94 ±7.34%; 70.36 ±1.57%, respectively). The values for bread MC and aw were 43.01 ±0.341% and 0.947 ±0.006, respectively. Our results suggest that HPEO is the only weak inhibitor of P. citrinum and P. crustosum colony growths. Also, the highest concentrations of TTEO display only the weak capability of mycelial growth inhibition of P. citrinum and P. crustosum. By contrast, the colony growth of P. expansum was enhanced by both EOs at all levels used. In conclusion, the application of both EOs in the vapor phase against selected Penicillium species seems not to be a promising alternative to chemical inhibitors used for bread preservation.

Antifungal Activities of the Essential Oils on Post-harvest Disease Agent Penicillium digitatum

2004 ◽  
Vol 8 (1) ◽  
pp. 25-29 ◽  
Author(s):  
E. Mine Soylu ◽  
Fatih M. Tok . ◽  
Soner Soylu . ◽  
Alpaslan D. Kaya . ◽  
Gulsun Akdemir Ev
Keyword(s):  
Essential Oils ◽  
Penicillium Digitatum ◽  
Antifungal Activities ◽  
Post Harvest ◽  
Disease Agent ◽  
Post Harvest Disease

Comparison of antifungal activities of Vietnamese citrus essential oils

2013 ◽  
Vol 27 (4-5) ◽  
pp. 506-508 ◽  
Author(s):  
Pham Van Hung ◽  
Pham Thi Lan Chi ◽  
Nguyen Thi Lan Phi
Keyword(s):  
Essential Oils ◽  
Antifungal Activities ◽  
Citrus Essential Oils

scholarly journals A Chemical Marker Proposal for the Lantana genus: Composition of the Essential Oils from the Leaves of Lantana radula and L. canescens

2010 ◽  
Vol 5 (4) ◽  
pp. 1934578X1000500
Author(s):  
José G. Sena Filho ◽  
Haroudo S. Xavier ◽  
José M. Barbosa Filho ◽  
Jennifer M. Duringer
Keyword(s):  
Quality Control ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
The Other ◽  
Chemical Markers ◽  
Chemical Marker ◽  
High Concentration ◽  
Minor Compounds ◽  
Prior Analysis

Essential oil extracts from the leaves of two Lantana species ( L. radula Sw. and L. canescens Kunth), for which no prior analysis has been reported, were analyzed by GC-MS. This information was utilized to propose chemical markers for Lantana species so that identification between physically similar plant species can be achieved through chemical analysis. Results showed 33 constituents for L. canescens, among which β-caryophyllene (43.9%), β-cubebene (10.1%), elixene (8.6%), β-phellandrene (6.1%), α-caryophyllene (2.6%) and dehydro-aromadendrene (2.6%) were the principle components. L. radula revealed the presence of 21 compounds, the most abundant of which were β-cubebene (31.0%), β-caryophyllene (20.8%), elixene (10.0%), α-salinene (6.4%), β-phellandrene (6.1%), copaene (4.9%) cadinene (1.4%) and psi-limonene (1.4%). The high concentration of β-caryophyllene in the samples tested here and those in the literature make it a good candidate for a chemical marker for Lantana species, with β-cubebene, elixene and β-phellandrene following as minor compounds identified more sporadically in this genus. On the other hand, Lippia species, which are morphologically similar to those from the Lantana genus, would contain limonene, citral, carvacrol, β-myrcene, camphor and thymol as the main chemical markers. These chemical markers would be a powerful tool for maintaining quality control in the extraction of essential oils for use in medicinal applications, as well as in identification of plant specimens to a taxonomist.

scholarly journals Insecticidal activity of essential oils in controlling fall armyworm, Spodoptera frugiperda

2019 ◽  
Vol 86 ◽  
Author(s):  
Marcelo Negrini ◽  
Elisangela Gomes Fidelis ◽  
Daniel Augusto Schurt ◽  
Francisco dos Santos Silva ◽  
Rosely Souza Pereira ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Essential Oils ◽  
Topical Application ◽  
Spodoptera Frugiperda ◽  
Management Strategies ◽  
Fall Armyworm ◽  
Maize Crop ◽  
Insect Rearing ◽  
Corymbia Citriodora ◽  
Implementation Management

ABSTRACT: Fall armyworm, Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) is one of the main pests in maize crop with developing resistance to chemical products and Bt technology. Therefore, alternative control methods such as essential oils are important steps in the implementation management strategies for this pest. This study aimed to evaluate the efficiency of essential oils (EOs) of Corymbia citriodora, Myrciaria dubia (Myrtaceae), Lippia microphylla (Verbenaceae) and Piper umbelattum (Piperaceae) in controlling S. frugiperda. The OEs were extracted and mortality tests were conducted with topic and volatile applications, in 30 second-instar caterpillars originated from insect rearing and artificial diet. As a control, we conducted tests with distilled water and acetone. EOs that provided mortality rates above 80% were submitted to chemical analysis for constituent identification. The efficient EOs were only those of C. citriodora and L. microphylla. For EO of C. citriodora, the LD80 was 7.06 ± 0.73 mg.g-1 in topical application and 5.85 ± 0.75 µL via volatile application. On the other hand, for EO of L. microphylla, DL80 was 9.95 ± 1.25 mg.g-1 in topical application and 18.56 ± 3.55 µL via volatile application. Chemical analysis showed that the main constituents were citronella for the EO of C. citriodora and (E)-caryophyllene and (E)-nerolidol to the EO of L. microphylla. EOs of C. citriodora and L. microphylla are promising for controlling S. frugiperda, with emphasis on the volatile effect of C. citriodora oil.

scholarly journals Chemical Analysis and Biological Activity of the Essential Oils of Two Endemic Soqotri Commiphora Species

Molecules ◽  
2010 ◽  
Vol 15 (2) ◽  
pp. 689-698 ◽  
Author(s):  
Ramzi A. Mothana ◽  
Adnan J. Al-Rehaily ◽  
Wulf Schultze
Keyword(s):  
Biological Activity ◽  
Chemical Analysis ◽  
Essential Oils
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