LESSON 2: CLASSIFYING FOOD ADDITIVES FACTORS OF SCIENTIFIC LITERACY AND FOUNDATIONAL OBJECTIVES, LEARNING OBJECTIVES, SCIENCE 10 BIBLIOGRAPHY
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HOW ARE FOOD ADDITIVES CLASSIFIED?

FOOD ADDITIVES ARE CLASSIFIED ACCORDING TO THEIR USE. DIFFERENT FOOD ADDITIVES ACHIEVE DIFFERENT THINGS. USUALLY THE PURPOSE OF A FOOD ADDITIVE FALLS WITHIN ONE OF THESE CATEGORIES.

  • FOR PLEASANT COLORING
  • FOR FOOD PRESERVATION
  • FOR IMPROVED TASTE OR FLAVOR
  • FOR SWEETNESS
  • FOR IMPROVED TEXTURE OR MAINTENANCE OF TEXTURE (SOME FOODS MAY SEPARATE)
  • TO IMPROVE THE NUTRIENT VALUE OF THE FOOD

READ MORE ABOUT FOOD ADDITIVES AND GET EXAMPLES OF FOOD ADDITIVES BY READING THESE SITES.

ACTIVITY

USE YOUR INGREDIENTS LIST FROM YOUR ASSIGNMENT QUESTION 1 FROM LESSON 1. THIS QUESTION HAD YOU LIST THE INGREDIENTS FOR 5 SNACK FOODS AND SELECT THE FOOD ADDITIVES IN THE INGREDIENTS LISTS.

TRY TO CLASSIFY THE FOOD ADDITIVES BY SEARCHING THE INTERNET. THE SITES BELOW PROVIDE A GOOD STARTING POINT TO YOUR SEARCH.

START BY LOOKING HERE:

WHEN YOU HAVE FOUND OUT THE PURPOSE OF EACH ADDITIVE, COMPILE THIS INFORMATION IN A TABLE. THE FIRST COLUMN SHOULD LIST THE FOOD ADDITVE AND THE SECOND COLUMN SHOULD STATE ITS USE OR PURPOSE OF BEING IN THAT FOOD SAMPLE.

COMPARE YOUR TABLE OF DATA WITH THOSE OF OTHER STUDENTS. YOUR TEACHER MAY ASK YOU TO PROVIDE A COPY OF YOUR TABLE FOR THE BULLETIN BOARD DISPLAY.

ASSIGNMENT

RECORD THE NAMES OF TWO FOOD ADDITIVES FOR EACH PURPOSE LISTED.

  PURPOSE OR USE NAMES OF TWO FOOD ADDITIVES
1. GIVES COLOUR TO THE FOOD OR RETAINS FOOD COLOUR  
2. PRESERVES THE FOOD  
3. ARTIFICIAL SWEETENER  
4. FLAVOR ENHANCER  
5. MAINTAINS FOOD TEXTURE  

SEND AN EMAIL TO A CLASSMATE AND HAVE THEM CONFIRM THE NAMES OF THE FOOD ADDITIVES IN YOUR LIST.

YOU WILL RECEIVE AN EMAIL FROM A CLASSMATE WHERE YOU HAVE TO CONFIRM THE NAMES OF FOOD ADDITIVES IN THEIR LIST. FOR THIS STUDENT, FOR EACH CORRECTLY IDENTIFIED FOOD ADDITIVE GIVE YOUR CLASSMATE ONE POINT. A TOTAL OF 10 POINTS MAY BE COLLECTED.

WRITE AN EMAIL TO ME WHERE YOU INCLUDE: YOUR NAME, THE NAME OF THE STUDENT WITH WHOM YOU TRADED LISTS, THE SCORE THAT YOU GAVE THIS STUDENT.

YOUR EMAIL SHOULD GO SOMETHING LIKE THIS.

"I TRADED LISTS WITH JOHN DOE. JOHN DOE HAD 8 OR 10 FOOD ADDITIVES IDENTIFIED CORRECTLY."

ASSESSMENT

PEER ASSESSMENT:

YOUR ASSIGNMENT WILL BE SCORED OUT OF 10 POINTS. YOUR MARK WILL BE THE SCORE THAT YOUR CLASSMATE DELIVERED TO ME THROUGH EMAIL. IT SHOULD IDENTIFY HOW MANY FOOD ADDITIVES YOU IDENTIFIED CORRECTLY.