EESA10H3 Lecture Notes - Lecture 8: Silage, Pesticide, Overnutrition
12 Apr 2017
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Chapter 8 - foodborne hazard and humans health ( it must be something i ate ) 1. 1 foodborne illnesses: food production (use of chemicals, fertilizers, pesticides, transmissible diseases, bacteria (escherichia coli, clostridium botulinum (botulism), salmonella, listeria monocytogenes (listeriosis, viruses, parasites, non transmissible diseases, shellfish-associated toxins, color additives, obesity, diabetes, organic food, genetically modified food. Extensive use of nitrate fertilizers: nitrites in groundwater. Direct human health effect: nitrites in water change hemoglobin to form that cannot carry oxygen, causes methemoglobinemia (blue baby syndrome) in young infants. Pesticide = chemical used to kill pests: active ingredient = the one intended to kill the pest(not a biological category but rather a cultural one) !2: carbamate insecticides , chemical action similar to organophosphates, low acute toxicity to people, pyrethroid (pyrethrum-like) insecticides, low acute toxicity to people, used in some consumer products. Resistance: some pests resistant (genetic makeup, resistant individuals survive and breed. Human health effects of pesticides: difficult to study chronic effects .
