amylase and pH

Cards (6)

  • step 1:
    add 2ml of starch solution and 2ml of pH buffer solution to a beaker in a bath of water at 30'C
  • step 2:
    use a pipette to add a drop of iodine to each well of the spotting tile
  • step 3:
    add 2ml of amylase solution and start the timer
  • step 4:
    every 10 to 20 seconds take a sample from the solution using a glass rod and add it to the tile
  • step 5:

    when the sample doesnt change (black / blue) stop the timer and record data in a table
  • step 6:
    repeat for all different pH solutions