Take note: For solution, add 2cm^3 of solution to 2cm^3 of ethanol. Shake. Decant into water and shake again For food item, crush and then add to 2cm^3 of ethanol. Shake. Decant into water (no need the food) and shake again. Cloudy white emulsion -> fats present Clear colourless solution -> fats absent We also did oil but didn’t post it as it would be quite repetitive. For that it will be the same as the first one involving solution. For that one we only did 1cm^3 of oil as the oil was concentrated so no need for too much. Similarly for biuret and Benedict test, you need to crush it, and immerse in water so that the nutrients dissolve in the water and can be tested. Iodine test just directly add iodine, no need for crushing (unless there is waterproof layer)
Take note:
For solution, add 2cm^3 of solution to 2cm^3 of ethanol. Shake. Decant into water and shake again
For food item, crush and then add to 2cm^3 of ethanol. Shake. Decant into water (no need the food) and shake again.
Cloudy white emulsion -> fats present
Clear colourless solution -> fats absent
We also did oil but didn’t post it as it would be quite repetitive. For that it will be the same as the first one involving solution. For that one we only did 1cm^3 of oil as the oil was concentrated so no need for too much.
Similarly for biuret and Benedict test, you need to crush it, and immerse in water so that the nutrients dissolve in the water and can be tested.
Iodine test just directly add iodine, no need for crushing (unless there is waterproof layer)
song choice🤩🤩🤩🤩