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| Wießner, S.; Thiel, B.; Krämer, J.; Köpke, U.. |
| The hygienic quality of head lettuce (Lactuca sativa L.) was investigated after different fertilizer treatments (fresh farmyard manure, composted farmyard manure, stinging nettle extract and calcium ammonium nitrate) in a 2-year field experiment with two trials per year, respectively. For assessment of the hygienic quality the total aerobic bacterial counts, Enterobacteriaceae, coliform bacteria, Escherichia coli and Salmonella were investigated in soil, fertilizer and lettuce samples. Plants were washed with running tap water before analysis. The total aerobic bacterial count, as well as the levels of Enterobacteriaceae and coliform bacteria tended to be slightly higher (not significant) after organic compared to mineral fertilization. No Salmonella was... |
| Tipo: Journal paper |
Palavras-chave: Soil quality Food security; Food quality and human health Vegetables. |
| Ano: 2009 |
URL: http://orgprints.org/18933/1/JFCO1634_Wiesner_et_al._2009.pdf |
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| Köpke, U.; Thiel, B.; Elmholt, S.. |
| Mycotoxins are toxic metabolites formed by specific fungi that grow on living plants and their residues under favourable conditions. They are undesirable ingredients of food and feed. Risks are also posed by the spores and toxin-contaminated raised dusts. Contamination by mycotoxins is a severe problem in food security. More than 300 species of fungi with the ability to form mycotoxins have been identified. More than 400 metabolites are assigned to the group of mycotoxins. Fortunately, only about 20 mycotoxins produced by five genera of fungi (Fusarium, Penicillium, Claviceps, Alternaria and Aspergillus) are found regularly or periodically in food and feed at levels which might have an impact on human and animal health (Gareis, 1999a). Since synthetic... |
| Tipo: Book chapter |
Palavras-chave: Crop health; Quality; Protection Post harvest management and techniques. |
| Ano: 2007 |
URL: http://orgprints.org/7402/1/7402.pdf |
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