Effect of essential oils of Thymus vulgaris and Mentha piperita on the control of green mould and postharvest quality of Citrus Sinensis cv. Valencia

2011 ◽  
Vol 10 (66) ◽  
Author(s):  
Fatemi
Keyword(s):  
Essential Oils ◽  
Citrus Sinensis ◽  
Postharvest Quality ◽  
Mentha Piperita ◽  
Thymus Vulgaris ◽  
Green Mould

scholarly journals In Vitro Activity of Essential Oils Against Planktonic and Biofilm Cells of Extended-Spectrum β-Lactamase (ESBL)/Carbapenamase-Producing Gram-Negative Bacteria Involved in Human Nosocomial Infections

Antibiotics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 272 ◽  
Author(s):  
Ramona Iseppi ◽  
Alessandro Di Cerbo ◽  
Piero Aloisi ◽  
Mattia Manelli ◽  
Veronica Pellesi ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Klebsiella Pneumoniae ◽  
Essential Oils ◽  
Disk Diffusion ◽  
Mentha Piperita ◽  
Thymus Vulgaris ◽  
Extended Spectrum ◽  
Disk Diffusion Assay ◽  
Diffusion Assay

The aim of this study was to analyze the antibacterial activity of four essential oils (EOs), Melaleuca alternifolia, Eucalyptus globulus, Mentha piperita, and Thymus vulgaris, in preventing the development and spread of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae, metallo-beta-lactamase (MBL)-producing Pseudomonas aeruginosa and carbapenemase (KPC)-producing Klebsiella pneumoniae. A total of 60 strains were obtained from the stock collection from the Microbiology Laboratory of Hesperia Hospital, Modena, Italy. Twenty ESBL-producing E. coli, 5 K. pneumoniae, 13 KPC-producing K. pneumoniae, and 20 MBL-producing P. aeruginosa were cultured and reconfirmed as ESBL and carbapenamase producers. Polymerase chain reaction was used for the detection of genes responsible for antibiotic resistance (ESBL and KPC/MBL). Antibacterial activity of the EOs was determined using the agar disk diffusion assay, and minimal inhibitory concentrations (MICs) were also evaluated. Lastly, adhesion capability and biofilm formation on polystyrene and glass surfaces were studied in 24 randomly selected strains. M. alternifolia and T. vulgaris EOs showed the best antibacterial activity against all tested strains and, as revealed by agar disk diffusion assay, M. alternifolia was the most effective, even at low concentrations. This effect was also confirmed by MICs, with values ranging from 0.5 to 16 µg/mL and from 1 to 16 µg/mL, for M. alternifolia and T. vulgaris EOs, respectively. The EOs’ antibacterial activity compared to antibiotics confirmed M. alternifolia EO as the best antibacterial agent. T. vulgaris EO also showed a good antibacterial activity with MICs lower than both reference antibiotics. Lastly, a significant anti-biofilm activity was observed for the two EOs (*P < 0.05 and **P < 0.01 for M. alternifolia and T. vulgaris EOs, respectively). A good antibacterial and anti-biofilm activity of M. alternifolia and T. vulgaris EOs against all selected strains was observed, thus demonstrating a future possible use of these EOs to treat infections caused by ESBL/carbapenemase-producing strains, even in association with antibiotics.

Effects of dog rose and watercress extracts on control of green mould decay and postharvest quality of orange fruits

2014 ◽  
Vol 28 (22) ◽  
pp. 2061-2065 ◽  
Author(s):  
Sajad Jafari ◽  
Mohammadreza Hassandokht ◽  
Mohammad Javan-Nikkhah
Keyword(s):  
Postharvest Quality ◽  
Green Mould ◽  
Dog Rose

scholarly journals ANTIMICROBIAL AND SYNERGISTIC ACTIVITY OF ESSENTIAL OILS FACING ISOLATED BACTERIA FROM SURGICAL STAFF’S

2019 ◽  
Vol 5 ◽  
Author(s):  
Tatiana Areas Cruz ◽  
Fernanda Rodrigues Torres ◽  
Monise Fazolin Petrucelli ◽  
Mariana Heinzen De Abreu ◽  
Silvia Sidneia Silva ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Staphylococcus Epidermidis ◽  
Citrus Sinensis ◽  
Concentration Index ◽  
Inhibitory Concentration ◽  
Thymus Vulgaris ◽  
Synergistic Activity ◽  
Bacterial Strains ◽  
Microdilution Method

Objective:to evaluate antimicrobial and synergistic activity of essential oils (Citrus aurantifolia, Citrus sinensis, Mentha viridisand Thymus vulgaris) against isolated bacteria from surgical staff’s hands and bacterial strains. Method:the antimicrobial activity of oils was analyzed by microdilution method to determine the Minimum Inhibitory Concentration. Moreover, the combinatory effect of the oil that presented greater effectiveness using gentamycin sulphate through the Fractional Inhibitory Concentration index was tested. The study was performed over the period 2016-2018. Results:T. vulgaris was effective against Staphylococcus saprophyticus with a concentration of 0.0008 µL.mL-1and against the ATCC standard strains of Staphylococcus aureus, Salmonella choleraesuis,Staphylococcus epidermidis and Proteus vulgarisand the bacteria S. aureus, S. epidermidisand Bacillus sp. with MIC ≥ 0.10 µL.mL-1. This oil association with gentamycin sulphate showed synergistic activity againstS. epidermidis. Conclusion:T. vulgarisessential oil showed expressive antimicrobial activity against ATCC and isolated clinic microorganisms, suggesting broad spectrum of activity.

scholarly journals Utilization of Ozone for the Improvement of Mentha piperita L. Quality by Reduction of Microbial Load and Impact of the Process on the Herb Properties

2020 ◽  
Vol 24 (2) ◽  
pp. 156-164
Author(s):  
Piotr Antos ◽  
Tomasz Piechowiak ◽  
Krzysztof Tereszkiewicz ◽  
Maciej Balawejder
Keyword(s):  
Adverse Effect ◽  
Essential Oils ◽  
Sensory Evaluation ◽  
Microbial Contamination ◽  
Food Poisoning ◽  
Microbial Load ◽  
Mentha Piperita

AbstractHerbs can be contaminated with microorganisms, which affects their quality while increasing the risk of food poisoning. Thus, there is a need for efficient decontamination techniques. In this study, the microbial load was reduced in peppermint herb (Mentha piperita L.) exposed to ozone at 10 ppm for 60 minutes. The quality of the ozonated herb was assessed by the determination of microbial load and essential oils content. Total microbial content was reduced by 4 log cfu g−1 of the microorganisms whereas the contamination with molds was reduced from 10.07 log cfu g−1 of the microorganisms to zero. Moreover, sensory evaluation of the herb aroma was conducted. These characteristics were not significantly affected by the treatment. Therefore, ozone can be used to improve the peppermint herb quality by reduction of the microbial contamination of peppermint herb while having no adverse effect on the herb aroma.

scholarly journals Stabilisation potentials of the essential oils of Thymus vulgaris L., Cinnamomum zeylanicum B. and Mentha piperita L. on palm olein at accelerated storage

2020 ◽  
Vol 19 (7) ◽  
pp. 464-477
Author(s):  
Agwanande Ambindei Wilson ◽  
Michel Dongmo Jazet Pierre ◽  
Ngoune Tatsadjieu Leopold ◽  
P. Priya ◽  
P. Nisha
Keyword(s):  
Essential Oils ◽  
Palm Olein ◽  
Mentha Piperita ◽  
Thymus Vulgaris ◽  
Cinnamomum Zeylanicum ◽  
Accelerated Storage

MINERAL AND ORGANIC NUTRITION IN BIOMASS PRODUCTION AND QUALITY OF ESSENTIAL OILS OF THYME (THYMUS VULGARIS L.)

2014 ◽  
pp. 119-124
Author(s):  
C.R. Juárez-Rosete ◽  
J.A. Aguilar-Castillo ◽  
M.N. Rodríguez-Mendoza ◽  
L.I. Trejo-Téllez
Keyword(s):  
Essential Oils ◽  
Biomass Production ◽  
Thymus Vulgaris

scholarly journals The Influence of Essential Oils on Gut Microbial Profiles in Pigs

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1734 ◽  
Author(s):  
Modestas Ruzauskas ◽  
Elena Bartkiene ◽  
Arunas Stankevicius ◽  
Jurga Bernatoniene ◽  
Daiva Zadeike ◽  
...  
Keyword(s):  
Essential Oils ◽  
Plant Extract ◽  
Basal Diet ◽  
Biologically Active ◽  
Mentha Piperita ◽  
Thymus Vulgaris ◽  
Metagenomic Sequencing ◽  
Microbial Composition ◽  
Animal Group ◽  
The Impact

In recent years, the intake of ultra-processed foods has increased dramatically worldwide. Missing natural foods in the diet raise the need of biologically active food components that could compensate for this deficiency and help maintain proper immune status. This study used pigs as an animal model for the assessment of the impact of consumption of Origanum vulgare plant extract combined with Mentha piperita and Thymus vulgaris essential oils on microbial profile in intestines. A single group of weaned pigs received basal diet, while the other group basal diet supplemented with plant extract and two essential oils in the form of bilayer tablets prepared using “liquid/solid” phase technology. Metagenomic sequencing was performed with the aim to investigate changes of microbial communities in ileum, caecum, and colon. The results demonstrated that the combination of essential oils was non cytotoxic, and had a positive effect on the microbial composition in the large intestine of pigs due to significant increase in the number of probiotic bacteria. The amount of Lactobacillus was 2.5 times and Bifidobacterium 1.9 times higher in the animal group fed with supplement. The combination, however, had some negative impact on the variety of minor species in the distal part of the ileum. Additional studies need to be performed to obtain knowledge on how combinations of essential oils can change bacterial variety in the proximal part of the gastrointestinal tract.

Coatings comprising chitosan and Mentha piperita L. or Mentha×villosa Huds essential oils to prevent common postharvest mold infections and maintain the quality of cherry tomato fruit

2015 ◽  
Vol 214 ◽  
pp. 168-178 ◽  
Author(s):  
Ingrid Conceição Dantas Guerra ◽  
Priscila Dinah Lima de Oliveira ◽  
Alline Lima de Souza Pontes ◽  
Ana Sílvia Suassuna Carneiro Lúcio ◽  
Josean Fechine Tavares ◽  
...  
Keyword(s):  
Essential Oils ◽  
Tomato Fruit ◽  
Mentha Piperita ◽  
Cherry Tomato

scholarly journals Antifungal and Antitoxigenic Effects of Selected Essential Oils in Vapors on Green Coffee Beans with Impact on Consumer Acceptability

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2993
Author(s):  
Miroslava Hlebová ◽  
Lukas Hleba ◽  
Juraj Medo ◽  
Viktoria Uzsakova ◽  
Pavel Kloucek ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Essential Oils ◽  
Sensory Profile ◽  
Aspergillus Ochraceus ◽  
Mentha Piperita ◽  
Thymus Vulgaris ◽  
Cinnamon Bark ◽  
Toxigenic Fungi ◽  
Litsea Cubeba ◽  
Coffee Beans

The main objective of this study is to evaluate the effect of selected essential oils thyme chemotype linalool (Thymus zygis L.), thyme chemotype tymol (Thymus vulgaris L.), eucalyptus (Eucalyptus globulus Labill.), lavender (Lavandula angustifolia Mill.), mint (Mentha piperita L.), almond (Prunbus dulcis Mill.), cinnamon bark (Cinnamomum zeylanicum Nees), litsea (Litsea cubeba Lour. Pers), lemongrass (Cympogon citrati L. Stapf), and ginger (Zingiber officinalis Rosc.) in the vapor phase on growth, sporulation, and mycotoxins production of two Aspergillus strains (Aspergillus parasiticus CGC34 and Aspergillus ochraceus CGC87), important postharvest pathogens of green and roasted coffee beans. Moreover, the effect of the essential oils (EOs) on the sensory profile of the coffee samples treated with EOs was evaluated. The major components of tested EOs were determined by gas chromatography and mass spectrometry (GC–MS) and gas chromatography with flame ionization detector (GC-FID). The results showed that almond, cinnamon bark, lemongrass, and litsea EOs are able to significantly inhibit the growth, sporulation, and mycotoxins production by toxigenic fungi. Sensory evaluation of coffee beans treated with EOs before and after roasting showed that some EOs (except lemongrass and litsea) do not adversely affect the taste and aroma of coffee beverages. Thus, application of the vapors of almond and cinnamon EOs appears to be an effective way that could serve to protect coffee during its transport and storage from toxigenic fungi.

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