Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Chypre → Alternative ways of managing fresh produce and effects on safety and quality

Cyprus University of Technology (2020)

Alternative ways of managing fresh produce and effects on safety and quality

Xylia, Panayiota

Titre : Alternative ways of managing fresh produce and effects on safety and quality

Auteur : Xylia, Panayiota

Université de soutenance : Cyprus University of Technology

Grade : Doctor of Philosophy (PhD) 2020

Résumé partiel
Vegetables are an important component of a balanced diet and dietary guidelines suggest the increase consumption of vegetables as an important source of phytonutrients. However food poisoning outbreaks have been linked with the consumption of these commodities, since the risk of contamination of fresh produce with foodborne pathogens throughout the food chain is high if sanitary and precautionary measures are not taken. Moreover, there is a current trend towards the use of natural, eco-friendly products for the preservation of fresh produce quality and safety, as alternatives to synthetic compounds (i.e. chlorine) commonly used in the food industry. The purpose of this thesis was to investigate i) the microbiological and physicochemical attributes of ready-to-eat salads as affected by season, producer, type of salad and expiring date, ii) the effects of plant age, inoculum level and nutrient solution pH of hydroponically grown lettuce inoculated with Salmonella Enteritidis and iii) the effects of natural products on the quality and safety of ready-to-eat vegetables (minimally processed lettuce and shredded carrot). Results indicate that season, type of vegetable and expiring date greatly affected the microbial load and plant-tissue related parameters of ready-to-eat salads. More specific, higher microbial load of samples was observed during spring. Interestingly Salmonella enterica was not found in any of the tested samples, whilst 3.70% of samples were found to harbor Listeria monocytogenes

Présentation

Page publiée le 6 juin 2021