|
|
|
|
|
| Fischer-Arndt, Meike; Neuhoff, Dr. Daniel; Köpke, Prof. Ulrich. |
| Quality requirements for raw edible produce like lettuces include nutritional value and hygienic quality. Organic lettuce is often considered to cause a potential health risk for immunocompromised individuals due to assumed pathogen transfer from organically manured soils into lettuce heads (Lactuca sativa, var. capitata). The effect of different weed management strategies (rotary tiller, mouldboard plough combined with flame weeding, plastic mulch and straw layer, resp.) on pathogen transfer from fresh and composted farm yard manure were assessed in four field experiments in 2006 and 2007. Results gave no hint on any pathogen transfer given by the assumed pathways (contaminated soil particles transported by mechanical tools and/or splash effect of rain... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Food security; Food quality and human health. |
| Ano: 2008 |
URL: http://orgprints.org/12547/1/Fischer%2DArndt_12547_ed.doc |
| |
|
|
| Fischer-Arndt, Meike; Neuhoff, Daniel; Tamm, Lucius; Köpke, Ulrich. |
| We evaluated the effect of using farmyard manure (FYM) in combination with four weed control techniques on the hygienic quality of lettuce. Treatments with six replications included the application of fresh FYM on the soil combined with hand-hoeing (assumed high-risk) and fresh FYM incorporation combined with plastic mulch (assumed low risk). The experiment was repeated twice per season over two years at Bonn University, Germany. The amounts of enteric bacteria in all treatments were within the acceptable limits. Enterococcus was detected in the majority of the samples in concentrations up to 3.7 log10 CFU/g. The Escherichia coli contents of lettuce ranged between n.d. and 103 CFU/g. There was no consistent effect suggesting a specific risk linked to one... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Weed management. |
| Ano: 2010 |
URL: http://orgprints.org/18932/1/fischerarndt_etal_2010_foodControl.pdf |
| |
|
|
|
