What chemical substances are used to test the presence of protiens in a food item?
Answers
Answer:
Biuret solutions are used to test presence of proteins in a food item.
Answer: This may help you
Explanation:
What chemical substances are used to test the presence of protiens in a food item?
=> • Calcium oxide reacts with protein to break it down into ammonia. The ammonia changes the acidity of the sample, causing a pH change. If your food is already very alkaline, you won't be able to use this test to detect protein. Test the pH of food to see if it changes the litmus paper prior to performing the protein test.
• Milk is an easy food to test because it's a liquid. To test solids, such as meat, cheese, or vegetables, you must first grind the food by hand or by using a blender. You may need to mix the food with some water to make a sample you can test.
•The test registers a change in pH, which is the concentration of hydrogen ions in an aqueous or water-based solution. Most foods contain water, so they work fine for the test. However, oily foods may not work as well. You can't test pure vegetable oil, for example, because it doesn't contain any water. If you test greasy foods, such as french fries or potato chips, you'll need to mash them up and mix them with a bit of water first.