FND 100 Lecture Notes - Lecture 2: Campylobacter Jejuni, Facultative Anaerobic Organism, Abdominal Pain

• School: Ryerson University
• Department: Nutrition and Food
• Course: FND 100
• Professor: Yvonne Yuan

Document Summary

Shape bacilli (salmonella spp) (rod shaped cells) Flagella are used in mobility of cells. Gram negative (refers to chemistry of the cell membrane: pink. How are bacteria identified/classified: metabolism, respiration requirements. Aerobic bacteria require o2 about 20% Anaerobic does not require o2 do not want any oxygen (higher concentration of. Clostridia spp strict anaerobes, canned or preserved products, quality and safety of canned products. Facultative anaerobic bacteria can grow in presence or absence of o2 grow slightly better in presence of o2. E. coli, s. aureus: microaerophilic bacteria very specific o2 concentration (3-6%, environmental tolerances: Thermophile can grow at high temperatures. Halophile can grow at high salt concentrations. Campylobacter jejuni (self-limiting disease) being able to recover quite quickly: gram negative (pink), microaerophilic, spiral or s-shaped cells. Onset of symptoms: 2-5 days, duration = 2-7 days: symptoms abdominal pain, bloody diarrhea damage to small intestinal wall, source and mode of transmission.