Transcript Arjuns and Rahuls Research Presentation

ARJUN’S AND RAHUL’S RESEARCH
Woo!
CONTENTS
•1. Growing Food
2. Environmental Factors
3. Processing Food
4. Storing Food
5. Preparing Food
GROWING FOOD
• Food items have the potential of being
contaminated from what they are grown in.
Chemicals, fertilizers, manures, and pesticides
farmers use can some times infect food. This is
something farmers have been trying to solve for
a long time. There have been a couple of tries to
fix this problem, but no real significant breakthrough.
PESTICIDES
• Pesticides have to be toxic enough to kill
insects. However, a pesticide can only be useful
at a small dose that causes little no harm to
people, animals, and wildlife.
HARMFUL PESTICIDE AND HOW THEY AFFECT
PLANTS
• Pentachlorophenol (PCP)is harmful insecticide that
interfere with plant’s chemical signaling. Pesticides
can kill bees which results in lower amounts
pollination. They loose $200 million a year from
reduced crop pollination. Pesticides can have some
direct harmful effects on plants like poor root hair
development and reduced plant growth. Insecticides
get rid of insects, where Pesticides get rid of pests.
ENVIRONMENTAL FACTORS
Environmental Factors can cause food poisoning
by carrying bacteria and parasites into the plant’s
soil. Some ways this can happen is from dust, wind
and water. This is not really preventable and is a
part of nature.
PROCESSING FOOD
These are some examples of not properly processed food:
-Raw and undercooked meat and poultry
-Raw foods; unpasteurized milk and dairy products, such as soft cheeses
-Raw and undercooked eggs. Raw eggs are often used in foods such as homemade
hollandaise sauce, Caesar and other salad dressings, tiramisu, homemade ice cream,
homemade mayonnaise, cookie dough, and frostings.
-Raw and undercooked shellfish
-Fresh or minimally processed produce; contaminated water
some symptoms of not properly processed foods are:
ILLNESSES CAUSED BY PROCESSED FOOD
-Abdominal pain
-Diarrhea
-Nausea
-Vomiting
-Fever
-Abdominal cramps
-Diarrhea
-Double Vision
-Inability to Swallow
-Difficulty Speaking and Inability to Breathe
STORING FOOD
• If you store food wrong it could also cause
cross-contamination. For example if you were to
store meat next to vegetables, then some
bacteria could infect the vegetables. This is
cross contamination.
STORING FOOD CONT.
• There are a couple of ways to fix this. One way
is to be organized and have the vegetables and
meat put in different places in the fridge. This is
also kind of easy to fix, but we could improve on
it.
PREPARING FOOD
• This more common place were crosscontamination can occur. One way food can
become contaminated during preparation is the
cutting board. If someone uses one board for
cutting meat and the same board (without
washing it) for cutting vegetables. Again we see
a common concept. Cross-contamination! One
way to prevent this is to wash the cutting board
after one use.
PREPARING FOOD CONT.
• Another way food can be contaminated
is if it is not cooked right. If you don’t boil
your vegetables the bacteria won’t die
and could end up infecting you. One is
way to prevent this is to boil your
vegetables. Maybe another way is to
have something in the fridge to prevent
contamination in the food.
CROSS-CONTAMINATION
• Since this came up so many times when we
were researching we decided to make a whole
other slide for it. As you probably know by know
cross-contamination is when bacteria is
transferred from food item to another. One way
out of the book to prevent cross-contamination is
to completely destroy the bacteria before it
cross-contaminates. One way to do this is
Carbonation.
CARBONATION
• This method takes carbon dioxide gas that has
been dissolved under pressure. By taking out
the oxygen, bacteria stops growing.
CONCLUSION
•
The sections are as followed. Please vote on tw of the following selections to go on
more detail on.
• Growing Food
• Environmental Factors
• Processing Food
• Storing Food
• Preparing Food
• Cross Contamination