Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus
The aim of this work was to evaluate the effect of pH and Mexican oregano essential oil (MOEO) added to carboxymethyl cellulose (CMC) and starch (S) edible films on Listeria monocytogenes and Staphylococcus aureus. CMC and S edible films were formulated with different concentrations (0%, 0.25%, 0.50...
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Language: | English |
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Wiley
2018-01-01
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Series: | Journal of Food Quality |
Online Access: | http://dx.doi.org/10.1155/2018/1659394 |
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author | Addí Rhode Navarro-Cruz Carlos Enrique Ochoa-Velasco Francisco Javier Caballero-Alvarez Martin Alvaro Lazcano-Hernández Obdulia Vera-López Aurelio López-Malo Raul Avila-Sosa |
author_facet | Addí Rhode Navarro-Cruz Carlos Enrique Ochoa-Velasco Francisco Javier Caballero-Alvarez Martin Alvaro Lazcano-Hernández Obdulia Vera-López Aurelio López-Malo Raul Avila-Sosa |
author_sort | Addí Rhode Navarro-Cruz |
collection | DOAJ |
description | The aim of this work was to evaluate the effect of pH and Mexican oregano essential oil (MOEO) added to carboxymethyl cellulose (CMC) and starch (S) edible films on Listeria monocytogenes and Staphylococcus aureus. CMC and S edible films were formulated with different concentrations (0%, 0.25%, 0.50%, 0.75%, and 1%) of MOEO at different pH (5, 6, or 7). Antimicrobial assay was performed. Inhibition curves were fitted to the Fermi model. Significant differences (p<0.05) were found in tc (time to reduce 50% of microbial population) and a (slope of the curve around tc), being lower at acidic pH. For L. monocytogenes, CMC films exhibited a higher antimicrobial effectiveness (0.50% of MOEO) compared to S films which need a higher concentration of MOEO (0.75%). S. aureus was inhibited with CMC films at 0.50% MOEO and pH 5 and 6. Microbial modeling has allowed estimating key intrinsic factors as pH and MOEO concentration with the synergistic effect against two important food-borne pathogens. |
format | Article |
id | doaj-art-5a809fe017f94ad1ae7b0691f07b166a |
institution | Kabale University |
issn | 0146-9428 1745-4557 |
language | English |
publishDate | 2018-01-01 |
publisher | Wiley |
record_format | Article |
series | Journal of Food Quality |
spelling | doaj-art-5a809fe017f94ad1ae7b0691f07b166a2025-02-03T05:44:10ZengWileyJournal of Food Quality0146-94281745-45572018-01-01201810.1155/2018/16593941659394Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureusAddí Rhode Navarro-Cruz0Carlos Enrique Ochoa-Velasco1Francisco Javier Caballero-Alvarez2Martin Alvaro Lazcano-Hernández3Obdulia Vera-López4Aurelio López-Malo5Raul Avila-Sosa6Departamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoDepartamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoDepartamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoDepartamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoDepartamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoDepartamento de Ingeniería Química, Alimentos, y Ambiental, Universidad de las Américas Puebla, 72810 Cholula, PUE, MexicoDepartamento de Bioquímica-Alimentos, Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Edificio 105E, 14 Sur y Av. San Claudio, Ciudad Universitaria, Col. San Manuel, 72420 Puebla, PUE, MexicoThe aim of this work was to evaluate the effect of pH and Mexican oregano essential oil (MOEO) added to carboxymethyl cellulose (CMC) and starch (S) edible films on Listeria monocytogenes and Staphylococcus aureus. CMC and S edible films were formulated with different concentrations (0%, 0.25%, 0.50%, 0.75%, and 1%) of MOEO at different pH (5, 6, or 7). Antimicrobial assay was performed. Inhibition curves were fitted to the Fermi model. Significant differences (p<0.05) were found in tc (time to reduce 50% of microbial population) and a (slope of the curve around tc), being lower at acidic pH. For L. monocytogenes, CMC films exhibited a higher antimicrobial effectiveness (0.50% of MOEO) compared to S films which need a higher concentration of MOEO (0.75%). S. aureus was inhibited with CMC films at 0.50% MOEO and pH 5 and 6. Microbial modeling has allowed estimating key intrinsic factors as pH and MOEO concentration with the synergistic effect against two important food-borne pathogens.http://dx.doi.org/10.1155/2018/1659394 |
spellingShingle | Addí Rhode Navarro-Cruz Carlos Enrique Ochoa-Velasco Francisco Javier Caballero-Alvarez Martin Alvaro Lazcano-Hernández Obdulia Vera-López Aurelio López-Malo Raul Avila-Sosa Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus Journal of Food Quality |
title | Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus |
title_full | Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus |
title_fullStr | Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus |
title_full_unstemmed | Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus |
title_short | Effect of pH and Mexican Oregano (Lippia berlandieri Schauer) Essential Oil Added to Carboxymethyl Cellulose and Starch Edible Films on Listeria monocytogenes and Staphylococcus aureus |
title_sort | effect of ph and mexican oregano lippia berlandieri schauer essential oil added to carboxymethyl cellulose and starch edible films on listeria monocytogenes and staphylococcus aureus |
url | http://dx.doi.org/10.1155/2018/1659394 |
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