ntr 109 nutrtition exam 2 review

ntr 109 nutrtition exam 2 review - N TR 109 EXAM 2 REVIEW...

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NTR 109 EXAM 2 REVIEW SHEET FOOD SAFETY Salmonella Food source: rare meats (poultry), undercooked eggs, unpasteurized milk Sour: human feces, infected animals Onset: 6-72 hours Symptoms: Diarrhea, vomiting, fever, chills Prevention: heat, cook food thoroughly Clostrium Botulism Food sources: foods in airtight container, low oxygen environment, home canning Onset: 4-36hrs Symptoms: Difficulty swallowing/breathing, nerve damage, respiratory failure, death Prevention: heat, proper canning method, avoid broken cans *botulism: poison produced by microorganism *Neurotoxins: act on nervous system * Raw honey – it can be deadly to children <1 y/o Escherichia Coli 0157:H7 Food sources: raw/undercooked beef, water supply, fruits/veggies, unpasteurized milk and juice Source: infected cattle, human waste Onset: 12-72 hours Symptoms: watery, bloody diarrhea, kidney failure, death Prevention: heat, pasteurization How to prevent Food borne illness Thaw meat, prevent cross contamination, sanitize with mild bleach solution, and wash hands for 20 sec, Don’t leave food out food more than 1-2 hrs Cold food cold <41, hot food hot >135 Food industry control HACCP: Hazard Analysis critical control point – list of guideline that identifies and help microbial hazard Identifies and corrects potential microbial hazard Manufacturing, distribution, commercial use of food products
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All hospitals use HACCP 3Things that bacteria requires - warmth, moisture, nutrients Pesticides Chemicals – used to control insects, weed, fungi, rodents Damages –all living cells Harmful – to plants, animals, human beings BST Growth hormones that are given to meat animals Bovine Somatotropin Produced by genetically engineered bacteria Identical to growth hormone made naturally BST peptide hormone is NOT A STEROID HORMONE 90% destroyed during pasteurization, 10% destroyed in digestion If BST survive, No effect on BODY Advantages: more meat, less fat in on cattle, more milk production (25%), cows require less feed, increased profits Disadvantages: cows suffer: mastitis (infection of utter), antibiotic treated cow’s milk and meat, maybe hazardous to those allergic to antibiotic Milk and meat tested for drug residues and destroyed if residue is more than normal National Institute of Health and FDA claim that BST is safe. Minerals/vitamins FOLATE Functions: Helps to synthesize DNA Require to produce new cells, homocystein metabolism (When folate increase homocystein decreases) Red blood cells: assist formation of blood cells, Neurotransmitter formation: compound made by neuron cells that allows communication between it and other cells, Intestinal cells Sensitive to heat, oxidation, UV lights, 50-90% folates found in food Deficiency: ANEMIA (megaloblastic or Macrocytic), Heart disease (increase homocystein)
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Neural tube defects (abnormality in brain and spinal cord, neural tube gives rides to brain, spinal cord, and CNS, Neural tube develops in the 1
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ntr 109 nutrtition exam 2 review - N TR 109 EXAM 2 REVIEW...

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