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Lilac colour.

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13y ago

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Is protein countable?

Yes, protein is countable. It can be measured in grams or other units to determine the amount of protein present in a food or drink.


Is there protein present in feces?

Yes, feces can contain small amounts of protein from undigested food and cells shed from the intestines.


How do scales measure protein content in food products?

Scales measure protein content in food products by weighing the sample before and after burning it to determine the amount of nitrogen present, which is used to calculate the protein content.


What is the effect of iodine on saturated fats?

Iodine can be used to detect the presence of unsaturation in fats. When added to a sample of saturated fat, there will be no change in color as iodine does not react with the double bonds present in unsaturated fats.


How is the biuret test helpful?

because it helps to recognize any protein present within food


How do you identify a protein?

There is a special kind of test that can be used to identify whether proteins are present in any food or not. The presence of proteins in a food can be tested using Biuret solution, which is a mixture of sodium hydroxide solution and small amount of copper sulphate solution. A change to violet color will be observed if proteins are present in that food.


Which procedure would be part of a laboratory investigation designed to determine if a specific nutrient is present in a food?

A common procedure to determine if a specific nutrient is present in a food is to use qualitative tests specific to that nutrient. For example, to test for starch, you would add iodine solution to the food sample; a blue-black color indicates the presence of starch. For proteins, the Biuret test can be employed, where a violet color change signifies protein presence. Additionally, for reducing sugars, a Benedict's test can be conducted, with a color change indicating the presence of sugars.


If biuret reagent turns purple what substance is present?

Proteins are present when biuret reagent turns purple. Biuret reagent reacts with peptide bonds in proteins, causing the color change.


How amylase breakdown starch?

To test starch: To test starch you take the food sample, and add iodine solution if the colour turns black this means starch is present. To test for protein: To test for protein, you take the food sample and add Biuret A and Biuret B and shake, if the colour turns lilac this means that protein is present.


What is crude protein in cat food?

Crude protein in cat food refers to the total amount of protein present in the food, measured as a percentage of the total weight. It includes all protein sources, both animal and plant-based, and is an important indicator of the food's nutritional content. Cats require a high protein diet for their health, as protein is essential for muscle maintenance, energy, and overall well-being. However, it's important to consider the quality of the protein sources in addition to the crude protein percentage.


Where can I go to get some information on the protein diet?

This website http://lowcarbdiets.about.com/od/whattoeat/a/highproteinfood.htm gives you a list of foods high in protein. It also shows portion and the amount of grams of protein each food has.


Test for protein in food?

To test for protein in food, you can use the Biuret test. Mix a small amount of food sample with Biuret reagent and observe for a color change - purple indicates the presence of protein. You can also use a protein detection kit or send the sample to a lab for detailed analysis.