Oregano is a plant utilized as a spice in numerous regions of the world due to its characteristic sensory attributes of flavor, color, and aroma. The use of oregano. This study evaluated growth patterns of Mexican oregano (Lippia berlandieri) under salt stress and tested the hypothesis that this species is salt tolerant. J Food Prot. Dec;74(12) doi: / Antifungal activity evaluation of Mexican oregano (Lippia berlandieri Schauer).
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This is an open access article distributed under the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, and reproduction in any medium, provided berlzndieri original work is properly berladnieri.
Inhibition curves were fitted to the Fermi model. In addition, its chemical, physical, and functional characteristics make them suitable to add essential oils EOs as antimicrobials [ 10 — 12 ].
In this report, the kind of polymer chain and pH affects the release of antimicrobial MOEO compounds due to many factors such as electrostatic interactions, osmosis, structural changes, and environmental conditions [ 732 ].
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The antimicrobial activity of essential oils and plant extracts is well known for a long time, and many research results have been published against food-borne pathogens [ 1 ] and about their low toxicity to mammals, fewer environmental effects, and low cost, which make them more lippa than synthetic antimicrobials [ 2 ]. Listeria monocytogenes and Staphylococcus aureus Fermi model biological parameters values at different concentrations of Mexican oregano Lippia berlandieri Schauer essential oil and pH values added to CMC and starch edible films.
The aim of this work was to evaluate the effect of pH and Mexican oregano essential oil concentration added to CMC and Berlanvieri edible films on Listeria monocytogenes and Staphylococcus aureus. Moreover, these authors pointed out that EO effectiveness is influenced by the berlandiieri of the microorganism. Inhibition curves of Listeria monocytogenes at different concentrations of Mexican oregano Lippia berlandieri Schauer essential oil and pH values added to CMC a 0.
Journal of Food Quality.
Journal of Food Quality
Table of Contents Alerts. All tests were run in triplicate. Significant differences were found in and values. Essential oils also have the additional effect of maintaining the quality of the food during storage, including sensorial, nutritional, and functional properties [ 45 ].
Data were fitted to the Fermi model [ 23 ] from which the biological parameters and were estimated by nonlinear regression using the KaleidaGraph 3. Antimicrobial assay was performed.
Consortium of Intermountain Herbaria – Lippia berlandieri
Moreover, it can be observed that, for both kinds of edible films, pH values of 5 and 6 are more effective than 7. Materials and Methods 2. Currently, research has been focused on the use of edible films due to their safety regarding consumption and friendly relation with the environment, and coating materials being used currently include polysaccharides cellulose derivatives, starch, chitin, and gumsproteins soy, milk, gelatin, corn zein, and glutenand lipids oils, waxes, and resins [ 9 ].
Carvacrol 5-isopropylmethylphenol and thymol 2-isopropylmethylphenol are the major components of the essential oils of some species belonging to the Lamiaceae family including oregano, and these are phenolic compounds; isomers of monoterpenes exhibit significant antimicrobial activity in vitro [ 67 ]. One inconvenience of EO direct application on surfaces by dipping, powdering, or spraying is that antimicrobial compounds can be neutralized or diffuse rapidly from the surface into the product berlndieri 30 ].
MOEO was incorporated at 0. Based on their traditional use, these extracts obtained from plants are first recommended, due to their broad-spectrum antimicrobial action and low side effects treatments [ 3 ].
This model describes a sigmoid decay and generates two biological parameters and between pH and MOEO concentration Table 1. Researchers around the world are investigating the use of essential oils to protect food from microbial growth. The data used to support the findings of this study ber,andieri available from the corresponding author upon request. Thus, adequate pH values can change the membrane permeability and disintegrate the outer oippia of Gram-negative bacteria releasing lipopolysaccharides.
Subscribe to Table of Berlamdieri Alerts. Moreover, there are evidences that EOs incorporated to edible films can inhibit a large variety of food-borne pathogens [ 1315 — 19 ]. The main advantage of using Berlandierl in a polymer matrix coating is a slow diffusion of the antimicrobial agent, leaving high concentrations of the active compound in contact with the food surface where contamination has occurred or is likely to occur, for a long period [ 20 ].
As observed, when MOEO concentration increased, a rapid microbial inactivation was observed, while at lower concentrations, the inactivation presented a remarkable nonlinear kinetics. Introduction Researchers around the world are investigating the use of essential oils to protect food from microbial growth.
Statistical analyses were performed with Minitab 17 software Minitab Inc. Microbial modeling has allowed estimating key intrinsic factors as pH and MOEO concentration with the synergistic effect against two important food-borne pathogens. To receive news and publication updates for Journal of Food Quality, enter your email address in the box below.