Monday, July 25, 2011

Iodized Salt Lab Entry

Iodine is a chemical element with the symbol I and atomic number 53. Iodine and its compounds are primarily used in nutrition, the production of acetic acid and polymers. Iodine's relatively high atomic number, low toxicity, and ease of attachment to organic compounds have made it a part of many X-ray contrast materials in modern medicine. (http://en.wikipedia.org/wiki/Iodine). Iodine Is useful in our diets. Our bodies require iodine in order to function.  Metallic bond has a distinctive property because it can conduct electricity when they are solids and can bend and stretch. Polyatomic ion are different from other ions because they are made of groups of atoms that are covalently bonded.

Consumer

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. 

Kimchee 7/20

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 remaind 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 less salt then our other teammates did because there took time to perserved.
  What impacted my results was that i had made a very good prediction. 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.

Thickeners and Emulsifiers

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

 
 
Emulsifiers are generally special surfactant detergents that mix with mineral oils and greases, but also have the ability to mix with water. By breaking down the oils or greases into very small particles, emulsifiers hold and disperse the soil away from fabrics. Once emulsified in the water, the oils and greases can be removed through dilution. Where you can purchase them depends on the volume you’re looking for. For small quantities you will find products in the retail market. For larger amounts contact a laundry chemical supply company.
 
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
 
Foods that doesnt have Emulsifiers, the food would look nasty and no one would like to buy it off stock because it wouldnt look eattable, it wolud look waste. Foods that has Emulsifiers they look more attractive and probably would taste a better taste then the one without the Emulsifiers.

Solution and other Mixtures

1.  A heterogeneous mixture is a mixture in which the individual substances are visible to the naked eye. Chocolate chips in a cookie would be a heterogeneous mixture, the chips do not dissolve or melt.

2. A homogeneous mixture is a type of mixture in which the composition is uniform. A heterogeneous mixture is a type of mixture in which the composition can easily be identified since there are two or more phases present. Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. Salt, sugar, and many other substances dissolve in water to form homogeneous mixture.

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

How substance dissolve

1.Water is called the the universal solvent because of it's ability to dissolve or dissociate most compounds. It can do this because of it's polarity. Oxygen has a higher electronegativity (meaning a stronger affinity for electrons) than Hydrogen so the oxygen side of a water molecule is slightly negative and the hydrogen side is slightly positive. In a solution, the positive hydrogen side of water is attracted to the negative parts of the compound it is dissolving while the negative oxygen is attracted to the positive parts. This allows water to dissociate and break apart ionic compounds.

2.The substance breaks down into smaller and smaller parts because of its properties in the liquid, and the parts become smaller and smaller until we can no longer see them.