E.coli contamination of Ready-To-Eat (RTE) vegetables under different modes of irrigation
Authors: Gupta, D., C. Madramootoo
Description: Ready-to-Eat (RTE) vegetables can be contaminated with bacteria through different means. Contamination of RTE vegetables can take place during production to consumption or farm-to-table continuum. Contamination of RTE vegetables depends on quality of irrigation water, irrigation methods, soil type and type of vegetable. Bacteria present in irrigation water can lead to foodborne illnesses or outbreaks in consumers. Therefore, irrigation activities require special attention to reduce the epidemiological foodborne outbreaks. The mechanism by which bacteria enters into the fruits, vegetables crops requires in depth study as every bacteria has different mode of entry to crops. Different irrigation methods may have varying impact on different types of vegetables. Therefore, this presentation will focus on E.coli contaminated irrigation water applied on ready-to-eat (RTE) vegetables and to observe and identify the amount of E.coli transfer to the RTE vegetables. Two irrigation methods (drip and sprinkler) were used to study its impact on two RTEs lettuce and tomato, grown in two soil types (organic and mineral). It was found that sprinkler irrigated lettuce were more contaminated with E.coli than drip irrigated lettuce. Organic soil showed more contamination of E.coli than mineral soil because of soil properties. Presence of organic matter in organic soil can act as source of food to bacteria and in turn results in bacterial growth. Lettuce showed more contamination of E.coli than tomato, in case of all the treatments.
Keywords: Ready-to-Eat (RTE) vegetables, irrigation, E.coli, contamination
Technical field: Bioprocess Systems Engineering
Conference name: CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Session name: Water Management I - Agricultural Applications
Citation: Gupta, D., C. Madramootoo. 2015. E.coli contamination of Ready-To-Eat (RTE) vegetables under different modes of irrigation. CSBE/SCGAB 2015 Annual Conference, Edmonton, AB, 5-8 July 2015.
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering