Friday, July 22, 2011

Scientist .

The paper me and my teammates been writing about is Additives. What i learn about additives is that it makes it the food better and better looking. We are writing to show people how additives is good for us. Im representing as the scientist. Im the person that does the research to see if its good or not. My opinion is that additives should stay and people should be happy that we have additives.
  Additives are not harmful to people because additives are good and they give food taste. Some food additives are bad and can you certain side effects. Additives are supposed to approve the foods we eat. So food additives are good for us even if people think there bad. In my case i think food additives are good because if we didnt have them the food wouldnt be tasting the same and it might look old and no good and people aint gunna wanna buy them because they going to think the food is no good. 
  Although there is a lot of controversy about food about food additives in certain circles, for the most part they are completely safe. Food additives have been used for a long time. Many of the foods that we eat or most common food ingredients are additives.Some additives could be eliminated if we were willing to grow our own food, harvest and grind it, spend many hours cooking and canning, or accept increased risks of food spoilage. But most people today have come to rely on the many technological, aesthetic and convenience benefits that additives provide in food.
   The risks of food additives can cause different allergies and conditions such as hyperactivity and Attention Defiut Disorder. Foods with additives can cause asthma, hay fever, and certain reactions such as rashes,vomiting headache,tight chest.hives and worsening of eczema.
  The benefits does not overweight the risk because there are many benefits to be dirived from additives. Some of the major benefits are a safer and more nutritious food supply, a greater choice of food products and a lower priced food supply.
 Is the Government responsible for informing the consumer?.....Yes the government is responsible because the consumers need to know what they buying because if the something is not label and a consumer allergic to it the consumer can get sick. 
   Yes i believe food labels should include additives because people eating and they know what they really eating. They get sick and cant explain the reasons why they sick. For example chinese food, Mcdonalds all these foods can get you sick because at the end of the day when they cooking those foods you ain't here to see what they put in the food. Food labels should include additives because food labels plays a major role in the food industry because it help people knowing what healthy food to buy.
 According to Food and Agriculture Organization of the United Nations Having clear labels helps people to compare and understand the differences between food products. Labels help protect people who have problem with their health for example people with cholesterol need to know what food to eat and what food not to eat.People need information about how to prepare foods properly to ensure that they are eating properly. Its good for keeping tracks of your daily calories intake as well as knowing what kind of foods you eating.
  The risks of not labeling addictives is a big risks because when people buying foods they need to know whats in the food and whether its good for them or not. For example extreme caution should be taken with sodium nitrite which is mainly used as a food coloring agent. Sodium nitrite is added to meats to produce an appealing and fresh red color to consumer.
 
Before eatting anything you should know the food additives of what in that food.
Yes, these food additives, common in most packaged foods
  • can make you fat
  • give you cancer
  • cause you to get diabetes
  • give you heart disease
  • make you have high blood pressure
  • cause hormone imbalances to name just a few
   A consumer should know a lot about whats in the food, how many calcium in the food and also what and how the food is made and what is smells and look like.Triclosan is not known to be hazardous to humans. FDA does not have sufficient safety evidence to recommend changing consumer use of products that contain triclosan at this time. In light of questions raised by recent animal studies of triclosan, FDA is reviewing all of the available evidence on this ingredient’s safety in consumer products. FDA will communicate the findings of its review to the public in spring 2011. At this time, FDA does not have evidence that triclosan added to antibacterial soaps and body washes provides extra health benefits over soap and water. Consumers concerned about using hand and body soaps with triclosan should wash with regular soap and water. Consumers can check product labels to find out whether products contain triclosan.

   First, be aware there are two different classes of advantages. One is advantages for the producer in farming with a GM crop. Second is advantages for the CONSUMER of the GM food, which is the question you have asked. I mention this difference because most of the touted advantages are of direct benefit to the producer, and of only indirect benefit (if any) to the consumer.
   I think that  food additivies are no good because mixing chemical that doesnt belong, the can cause all types of chemical reactions towards your health. for example, mc.donald fries are preserve for about four months to mole are brake down. there are so many risk of food from a consumers perspective. why? because when a food is stored for a certain amount of time it can cause harm to our health. for the simple fact that our body isnt used to it which will give our body reaction towards certian things we eat.

   NO! there should be a limit to the number of additives allowed in each food. Here’s a listing of  food additives to be aware of and see what these additives do in your body and to your health.  When you’re eating for health, a strong immunity, or energy to perform sports or even cleaning your house,  food additives can really negate the value of a good nutritious meal. So read those food labels,  include as much food with as few additives as possible in your meals every single day, and eat plenty of fresh fruits and vegetables.  It may not be possible to fully get away from all food additives, but we all can be mindful to limit these food additives of processed foods as much as possible for good health.

   In conclusion additives gives food a better look and gives it a better tatse. without additives lots of food thats being eatting today wouldnt be eatting without additives. what i hope to accomplish is to keep additives in stock, because certain food thats made people decides to eat it bascily cause of the smell or the tatse. salers that sale food in resturants wouldnt make money if it wasnt for additives in the world.

Thursday, July 21, 2011

Kimchee

The data for my Kimchee didn't change over time. The pH Level stood the same for the all the data i took. The water didn't grow over time it stood the same. The only thing that changed back and forth was the color of the Kimchee. My Kimchee does support my hypothesis because it did preserved faster then my other team mates Kimchee because we used more salt then our other teammates did because there took time to perserved.
  What impacted my results was that i took a good guess. Fermentation is  a change brought about by a ferment as yeast enzymes,which convert grape sugar into ethyl alcohol. Yes fermentation is a effective way to preserving food. People use it all the time to cook certain foods.
  You could make it more effective by maybe adding more salt or maybe using more water. I would like to study pepper. Can pepper preserved like salt does. I would improve my set up by adding more salt and cabbage.

Wednesday, July 20, 2011

I Agree Calcium Should Be Added To Orange Juice

"All orange juice sold in the Untied States should be fortified with calcium"

I agree with this statement because Calcium helps us not harm us. People that don't get enough calcium there more likely to have bone fractures and osteoporosis. Foods that contain calcium. We need these food to be able to move and to do certain things.Depending on you age you need a certain calcium in your body. Since i'm 18 i did 1,300mg. There are certain people that have trouble getting enough calcium are Postmenopausal women and people that have lactose also women of childbearing age and also vegetarians because they don't get meat. The benefits of having low calcium effects your eye sight and how your bones are strong or weak. When you walk outside and you fall you could hurt your self because your bones are weak from not having enough calcium. 

Monday, July 18, 2011

Lab: Home-Made Kimchee 6/18

Height: 5-6 inches
How much substances used: a bag full of cabbage,8 salts,2garlic,8 chilly power.
Smell: 5
Color: Light Orange
How much water: 6-7 inches
Texture: Soft
pH Level: 6
Are There Bubbles: Yes

Why are Emulsifiers and Stabilizers used in foods

Based on the lab Emulsion is two or more immiscible liquids which are oil and water and egg yolk. The water and oil converted in the Emulsion,mixing the water and oil and water and egg yolk together.

These are types of food that use emulsifiers.
Foods that Commonly Contain Emulsifiers
BiscuitsToffeesBread
Extruded snacksChewing gumMargarine / low fat spreads
Breakfast cerealsFrozen dessertsCoffee whiteners
CakesIce-creamTopping powders
Desserts / moussesDried potatoPeanut butter
Soft drinksChocolate coatingsCaramels

Foods that are not used with Emulsifiers, the food would look nasty and no one would want to eat or buy i because they going to think its old. Foods with Emulsifiers are better looking and probably would taste better then the one without the Emulsifiers. 

 Emulsifiers are molecules that have two distinct ends , one likes to be in water and the other likes to be in oil.In a water-in-oil emulsion, the emulsifier coats the water droplets to stop them from separating from the oil.It keeps them evenly dispersed throughout the emulsion and stops them from clumping together to form their own, separate layer.

People use Emulsifiers ans Stabilizers are used to help to retain the physical qualities of products. Emulsifiers make water and oil mix together evenly. Stabilizers giver products good texture and mouthful feel.

Section One : Chapter 6

  • What is Heterogeneous Mixture?
A Heterogeneous Mixture,the components are not spread out,or distributed,evenly throughout the mixture.

  • What is a Homogeneous Mixture?
A Homogeneous Mixture,the particles are dispersed evenly throughout.

Friday, July 15, 2011

Lab: Home-Made Kimchee 6/15

Height: 5-6 inches
How much substances used: a bag full of cabbage,8 salts,2garlic,8 chilly power.
Smell: 5
Color: Light Orange
How much water: 6-7 inches
Texture: Soft
pH Level: 6
Are There Bubbles: Yes

Thursday, July 14, 2011

Lab: Home-Made Kimchee 6/14

Height: 5-6 inches
Smell: it was kinda strong but mostly smelled like garlic
Color: Orange
Texture: Soft
pH Value: 6
Are There Bubbles: Yes when i push it down.

How Can We Slow Down The Oxidation Of Fruits

Oxidation in the apple is when we leave the apple out so the chemicals in the air would change the chemicals in the apple by reacting with them. The oxidation occurs because the molecules in the apple combine with the molecules of oxygen in the air.


We cut the apple in 9 pieces and put the apple in salt water,sugar water,lemon juice and regular water and putting one piece of apple in the plastic and leaving the one out in the open. Oxidation was use in the experiment because we were testing to see which one would brown faster and which one would appear appetizing for longer.We can identify when Oxidation occurs is when you see the apple becoming a whole different apple.Looking brown and feeling soft.


In the lab Antioxidant works by fruits use these phytochemicals to protect themselves against the stress caused by intense sunlight and harsh growing conditions. What was slowing the browning of the apple was the ones that was placed in liquid instead of the lemon juice because the lemon juice was cleaning the apple. People would want to use Antioxidants because antioxidants is protection the fruit and people when they eat the apple.

Wednesday, July 13, 2011

What are the risks and benefits of using ammonia to sanitize beef?

BEFORE READING:
Q: How would you feel if you had to pay an extra fifty cents for your school lunch? How much would that add up to over a school year?
A: I would be mad if i had to pay another 50 cents because school lunch isnt all that yummy and sometimes it be making you sick. It might add up to more then i could afford.


Q: Statement: I don't care what goes in my burger as long as it's cheap, tastes good and doesn't make me sick. Do you agree or disagree, and why? 
A: I do not agree with that because i have to make sure my food is fresh and clean. I have no idea if mcds does food irradiation but there food is really good. I really do hope they clean there meat or make sure its fresh. 


DURING THE READING :
Q: Why did Beef Products, Inc. begin treating beef with ammonia?
A: Because ammonia process would kill E.coli as well as salmonella in the fat trimmings.
Q: What happens to a batch of beef that is found to be contaminated with E. coli or Salmonella? What about if the beef is ammonia-treated?
A: The meat was caught before reaching the lunchroom trays. If the hamburgers still have E.coli or salmonella  the meat is sent through pipes where it is exposed to anmonia gas,and then flah frozen and compressed - all steps that help kill pathogens, company research found.
Q: How might the ammonia treatment process fail to kill microbes?
A:   

I Go For Food Irradiation

What is Food Irradiation?
Food irradiation is a promising new food safety technology that can eliminate disease-causing germs from foods. This is suppose to help us make sure that we are eating fresh clean food. If they didn't do Food Irradiation and someone got sick people wouldn't want to buy from that company and that company would lose money.Studies show clearly that when irradiation is used as approved on foods
1.disease-causing germs are reduced or eliminated
2.the food does not become radioactive
3.dangerous substances do not appear in the foods
4.the nutritional value of the food is essentially unchanged.
Food Irradiation is safe and it can effect many sickness happening

Those foods need to Irradiated because people use these foods the most and cook with is mostly every day. Pizza places use flour to make bread and they use the bread for the pizza and if they that flour had mold they wouldnt be able to use it and they wouldn't be able to cook anything and they going to lose money because people like to get pizza. Fruit stands need to make sure there fruits are fresh because people wouldn't wanna but anything and they going to be mad and they might go to a different place to get what they need.

How does irradiation affect foods?
Foods are not changed in nutritional value and they are not made dangerous as a result of the irradiation. The food is slightly warmed. Some treated foods may taste slightly different, just as pasteurized milk tastes slightly different from unpasteurized milk. If the food still has living cells, (such as seeds, or shellfish, or potatoes) . Irradiated foods need to be stored, handled and cooked in the same way as unirradiated foods.  The safety of irradiated foods has been studied by feeding them to animals and to people. These extensive studies include animal feeding studies lasting for several generations in several different species, including mice, rats, and dogs. 

How do you measure the amount of irradiation used?
Killing effect of irradiation on microbes is measured in D-values. One D-value is the amount of irradiation needed to kill 90% of that organism. I'ma show you a example it takes 0.3 kiloGrays to kill 90% of E. coliO157, so the D-value of E. coli is 0.3 kGy. These numbers can be added exponentially. It takes two D (or 0.6 kGy in the case of E. coli) to kill 99% of the organisms present, 3 D (or 0.9 kGy) to kill 99.9% and so on. Thus, once you know the D-value for an organism, and how many organisms might possibly be present in a food, the technician can estimate how much irradiation it will take to kill all of them. For example, if you think that a thousand E. coli O157 could be present in a food, then you want to be able to treat with at least 4 D, or 4 x 0.3 kGy, or 1.2 kGy. 

How does irradiation affect disease-causing microbes?
Microbes present in the food are irradiated, the energy from the rays is transferred to the water and other molecules in the microbe. Energy creates transient reactive chemicals that damage the DNA in the microbe, causing defects in the genetic instructions. it can repair this damage, the microbe will die when it grows and tries to duplicate itself. Disease-causing organisms differ in their sensitivity to irradiation, depending on the size of their DNA, the rate at which they can repair damaged DNA, and other factors. It matters if the food is frozen or fresh, as it takes a higher dose to kill microbes in frozen foods.

Monday, July 11, 2011

Lab: Home-Made Kimchee

http://www.lifeinkorea.com/Images/Kimchi/Kimch291.jpg


The variable me and my partner will be studying is the amount of salt. We going to add 4 scoops in one bottle and in the other one we going to double it by putting 8 scoops of salt. I would record my data by studying how the Kimchee comes out or looks. I would record my data on my Lab Notebook to look back at it. This experiment would take a week. When i would record my data is when i see something changing or not look right. Kimchee should come out with a whole different style.Im testing what salt does to the cabbage. Which one would preserve faster then our other group bottle. Our hypothesis is "If you use 8 scoops of salt,The cabbage will preserve faster,in one week or less, compared to when 4 scoops of salt is used" . We are focusing on the salt concentration.

Friday, July 8, 2011

Chapter 6 Section One: Compounds and Molecules

1. What holds compounds and substances together? ..  A chemical bond is what holds a compound and substances together

2. What determines the properties of a substances? .. The properties of the elements it is made of and the relationship in which they are bonded (i.e. the type of bonds they share)

Section Six: Modern Atomic Theory

  • How are electrons organized in an atom? There all on the energy levels.

  • Can the exact location of an electron be determined? They could only be find in certain energy levels or regions and around the nucleus

  • How do electrons move between energy levels? They never found between energy levels.Instead they JUMP from one level to the next.

Section Fve:The Structure of Atoms

  1. What do atoms of the same element have in common? ... They have the same element and same number.
  2. What are isotopes? .. One or two or more atoms having the same atomic number ut different mass numbers
  3. How is an element average atomic mass calculated? ..Isotopes are any of the several different forms of an element each having different atomic mass (mass number). Isotopes of an element have nuclei with the same number of protons (the same atomic number) but different numbers of neutrons. Therefore, isotopes have different mass numbers, which give the total number of nucleons—the number of protons plus neutrons.
  4. How is a Avogadros number used? ...  It is the number of particles in one mole of a given substance. used to convert units.

Thursday, July 7, 2011

Section Four: Changes of State

  1. What happens when a substance changes from one stat of matter to another? . A substances does not change during a change of state
  2. What happens to mass and energy during physical and chemical change? .  Mass cannot be created or destroyed. Nothing happens to mass it stays the same.

Section Three: Matter & Energy

  • What makes up matter? ..Matter is anything that takes up space. All matter is made up of atoms.The atoms in many forms of matter are joined in molecules

  • What is the difference between a Solid, Liquid,Gas? . The particles in a solid cannot change postition easily. The particles that make up a liquid move more quickly then those in a solid. The particles in a gas move more quickly than the particles in solids and liquid do.

  • What kind of energy do all particles of matter have? . The kind of energy particles have is Kinetic Energy.

Wednesday, July 6, 2011

Section Two: Changes Of Matter

  1. What is a Physical Change? . A Physical Change affects one or more physical properties of a substances without changing the identity of the substances.
  2. What is a Chemical Change? . A change that occurs when one or more substances change into entirely new substances with different properties.
  3. How can the parts of a Mixture and a Compound be separated? . Mixtures can be separated easily, like pizza. Pizza is a Mixture that has components you can see if you don't like one of the toppings you can change it. A compound can be separated by rearranging the Atoms.

Section One: What Is Matter ?

  • How Can Matter Be Classified? .  Matter can be classified by Elements,Compounds, and Mixtures

  • Why are Elements and Compounds considered Pure Substances? . Elements are one type of atom and compounds are made up of two or more atoms that are chemically bond 

  • How are Elements and Compounds different from Mixtures? . Elements cannot be broken down by chemical or physical mean b/c only consist of one atom. Compounds can be broken down by chemical mean. And mixtures can be broken down by chemical mean and by physical mean.