6533b871fe1ef96bd12d26b0
RESEARCH PRODUCT
Photoactivated chlorophyllin-based gelatin films and coatings to prevent microbial contamination of food products
Rafael GavaraMaría José OcioMaría José OcioGracia López-carballoPilar Hernández-muñozsubject
Staphylococcus aureusfood.ingredientPorphyrinsTECNOLOGIA DE ALIMENTOSSodiumActive packagingColony Count Microbialchemistry.chemical_elementFood ContaminationMicrobial Sensitivity Testsmedicine.disease_causeMicrobiologyGelatinFood safetychemistry.chemical_compoundfoodListeria monocytogenesFood PreservationmedicineHumansFood sciencePhotosensitizing AgentsChlorophyllidesChemistryMagnesiumChlorophyllinFood PackagingGeneral MedicineAntimicrobialListeria monocytogenesAnti-Bacterial AgentsFoodborne pathogensStaphylococcus aureusConsumer Product SafetyFood MicrobiologyFood PreservativesGelatinActive packagingAntimicrobial packagingFood Sciencedescription
[EN] The aim of this work was to develop antimicrobial photosensitizer-containing edible films and coatings based on gelatin as the polymer matrix. incorporating sodium magnesium chlorophyllin (E-140) and sodium copper chlorophyllin (E-141). Chlorophyllins were incorporated into the gelatin film-forming solution and the inhibiting effect of the cast films was tested against Staphylococcus aureus and Listeria monocytogenes. The results demonstrated that water soluble sodium magnesium chlorophyllin and water soluble sodium copper chlorophyllin reduced the growth of S. aureus and L monocytogenes by 5 log and 4 log respectively. Subsequently, the activity of self-standing films and coatings containing E-140 was assessed on cooked frankfurters inoculated with S. aureus and L monocytogenes. These tests showed that it was possible to reduce microorganism growth in cooked frankfurters inoculated with S. aureus and L monocytogenes by covering them with sodium magnesium chlorophyllin-gelatin films and coatings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-01-01 |