Chitosan boosts the antimicrobial activity of Origanum vulgare essential oil in modified atmosphere packaged pork

2016 ◽  
Vol 59 ◽  
pp. 23-31 ◽  
Author(s):  
Antonello Paparella ◽  
Giovanni Mazzarrino ◽  
Clemencia Chaves-López ◽  
Chiara Rossi ◽  
Giampiero Sacchetti ◽  
...  
Pathogens ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 192 ◽  
Author(s):  
Sanae Akkaoui ◽  
Anders Johansson ◽  
Maâmar Yagoubi ◽  
Dorte Haubek ◽  
Adnane El hamidi ◽  
...  

In this study, the essential oil of Origanum vulgare was evaluated for putative antibacterial activity against six clinical strains and five reference strains of Aggregatibacter actinomycetemcomitans, in comparison with some antimicrobials. The chemical composition of the essential oil was analyzed, using chromatography (CG) and gas chromatography–mass spectrometry coupled (CG–MS). The major compounds in the oil were Carvacrol (32.36%), α-terpineol (16.70%), p-cymene (16.24%), and Thymol (12.05%). The antimicrobial activity was determined by an agar well diffusion test. A broth microdilution method was used to study the minimal inhibitory concentration (MIC). The minimal bactericidal concentration (MBC) was also determined. The cytotoxicity of the essential oil (IC50) was <125 µg/mL for THP-1 cells, which was high in comparison with different MIC values for the A. actinomycetemcomitans strains. O. vulgare essential oil did not interfere with the neutralizing capacity of Psidium guajava against the A. actinomycetemcomitans leukotoxin. In addition, it was shown that the O. vulgare EO had an antibacterial effect against A. actinomycetemcomitans on a similar level as some tested antimicrobials. In view of these findings, we suggest that O.vulgare EO may be used as an adjuvant for prevention and treatment of periodontal diseases associated to A. actinomycetemcomitans. In addition, it can be used together with the previously tested leukotoxin neutralizing Psidium guajava.


2008 ◽  
Vol 28 (2) ◽  
pp. 418-422 ◽  
Author(s):  
Evandro Leite de Souza ◽  
Tânia Lúcia Montenegro Stamford ◽  
Edeltrudes de Oliveira Lima ◽  
José Maria Barbosa Filho ◽  
Márcia Ortiz Mayo Marques

2021 ◽  
Vol 10 (2) ◽  
pp. e36810212584
Author(s):  
Daniel Lopes Araújo ◽  
Bruno Abilio da Silva Machado ◽  
José Marcos Fernandes Mascarenhas ◽  
Suzana Pereira Alves ◽  
Samilly Lorâna Farias de Sousa ◽  
...  

Western medicine has been trying to use natural means for the treatment of infections caused by bacteria, in this context, it is very noticeable the great interest of therapeutic agents coming from natural products, more specifically those derived from plants. In this sense, a review of the integrative literature on the antimicrobial activity of the essential oil of oregano has been carried out. For this review of integrative literature 24 scientific articles were used. The studies showed that the essential oil of Origanum vulgare L. (Lamiaceae) has been used as an element of scientific research in laboratories as an antimicrobial strategy against innumerable types of bacteria, where its high therapeutic and antimicrobial content has been proven. The essential oil of O. vulgare exposes a variable range of active compounds, being the monoterpenes carvacrol and thymol the majority compounds of this essential oil, which corresponds between 80,2 and 98% of the total composition of this essential oil. In view of this, the results that were described in this review could suggest that the compounds cited have antimicrobial activity, damaging the lipidic plasma membranes, compromising the pH homeostasis and the balance of organic ions, preventing cell division and causing dehydration in bacterial cells.


Author(s):  
K. Zh Badekova ◽  
G.A. Atazhanova ◽  
T. Kacergius ◽  
S.B. Akhmetova ◽  
M.K. Smagulov

2021 ◽  
Vol 46 (4) ◽  
pp. 1-6
Author(s):  
Greyce Silveira MELLO ◽  
Juliana Fernandes ROSA ◽  
Débora Rodrigues da SILVEIRA ◽  
Patrícia Gomes VIVIAN ◽  
Natacha Deboni CERESER ◽  
...  

Species of the Vibrio genus are commonly reported as agents of food poisoning outbreaks associated with fish consumption. The objective of this study was to assess the antimicrobial activity of the essential oils of Origanum vulgare and Ocimum basilicum against Vibrio parahaemolyticus and Vibrio vulnificus, as well as to assess their addition to fillets of Mugil platanus and sensorial acceptance among consumers. The antimicrobial activity was analyzed by the disc diffusion test and minimal bactericidal concentration (MBC). M. platanus fillets, experimentally contaminated, were marinated for 24 hours in a solution containing 1.0% and 1.5% of essential oil of O. vulgare. For the sensory analysis, samples marinated in 1.5% of O. vulgare oil were prepared and offered to 100 testers. The oil of O. basilicum shows no antimicrobial activity, so its application would be ineffective; for such reason the subsequent tests were not performed. However, the essential oil of O. vulgare produced inhibition halo diameters ranging from 24.6 to 34.1 mm, on average, and the MBC ranging from 3.9% to 15.6%. When added to the product, the essential oil of O. vulgare eliminated the microorganisms that were experimentally inoculated. In the sensorial analysis, samples marinated in 1.5% of O. vulgare essential oil obtained an average of 6.82 of acceptance note among consumers.


Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5482
Author(s):  
Milica Aćimović ◽  
Miroslav Zorić ◽  
Valtcho D. Zheljazkov ◽  
Lato Pezo ◽  
Ivana Čabarkapa ◽  
...  

The objective of this study was to evaluate wild growing Satureja kitaibelii, Thymus serpyllum, Origanum vulgare, Achillea millefolium and Achillea clypeolata with respect to their essential oil (EO) content, composition and antimicrobial activity. The five species were collected at Mt. Rtanj and the village of Sesalac, Eastern Serbia. The main EO constituents of Lamiaceae plants were p-cymene (24.4%), geraniol (63.4%) and germacrene D (21.5%) in Satureja kitaibelii, Thymus serpyllum and Origanum vulgare ssp. vulgare, respectively. A. millefolium EO had multiple constituents with major ones being camphor (9.8%), caryophyllene oxide (6.5%), terpinen-4-ol (6.3%) and 1,8-cineole (5.6%), while the main EO constituents of A. clypeolata were 1,8-cineole (45.1%) and camphor (18.2%). Antimicrobial testing of the EO showed that Staphylococcus aureus (Gram-positive) was more sensitive to all of the tested EOs than Escherichia coli (Gram-negative). S. kitaibelii EO showed the highest antimicrobial activity against both tested bacterial strains. This is the first study to characterize the EO composition and antimicrobial activity of these five medicinal species from Eastern Serbia in comparison with comprehensive literature data. The results can be utilized by the perfumery, cosmetics, food and pharmaceutical industries, but also for healing purposes in self-medication.


2014 ◽  
Author(s):  
Geany Targino de Souza ◽  
Rayssa Julliane de Carvalho ◽  
Neyrijane Targino de Souza ◽  
Jessica Bezerra dos Santos Rodrigues ◽  
Danilo Elias Xavier ◽  
...  

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