Monday, 9 January 2012

2.7 Test for Starch and Glucose

Describe the tests for glucose and starch

Glucose
C6H12O6

  1. Begin by taking glucose power and dissolve it into a test tube and add to the same test tube benedict's reagent which is blue. 
  2. Take the test tube and place it in a water bath (around about 60 - 70 degree centigrade)
  3. After just 2/3 minutes we can remove the test tube and what we would be would be a colour change from blue to orange  *In weak solutions of glucose we will see a green colour developed*
Starch
  1. Put some starch powder into a spotting tile
  2. We will then add iodine solution (brown)
  3. If we add this to the spotting tile, we would see a change from the brown colour to a dark blue/black powder

5 comments:

  1. you spelt powder wrong

    ReplyDelete
  2. Timeless European-inspired architecture marry contempo design and amenities offers its
    resident a truly alluring abode to call home.
    the interlace condo

    ReplyDelete
  3. shrek is love shrek is life

    ReplyDelete
    Replies
    1. i agree, he penetrated my butthole and I liked it

      Delete