But when the diet is prepared it will have 14% protein.
Does this mean the entire batch will have 14% protein or is this per serving?
May 09 2012 : 11:55:42 PM
Should be per serving.
CandyZippy GlidershortsUSA4537 Posts
May 10 2012 : 12:12:54 AM
That is hard to answer. the percentage for a powder that says it has 46% crude protein would have 46 grams protein in 100 grams of the powder.
Once mixed, the amount of protein expressed as a percentage would require calculating the total amount of protein in the mixture (including all ingredients) then calculating the total volume or gram weight of the entire mixture to convert the protein grams (amount) to a the amount per volume to get the percentage.
Percentages can be misleading because the are not actual an AMOUNT of protein. When it is expressed as a percentage it is AMOUNT PER VOLUME or AMOUNT PER 100 grams by weight.
14% protein implies that the whole mixture would have 14 grams protein per 100 grams of the mixture. Percentage tells me nothing when referring to the mixture because I do not know if we are talking percentage of the total volume or percentage of the total weight of the mixture.
If you have a powder that is 46 grams protein per 100 grams powder and you mix it 1 part powder to 3 parts water (no other ingredients) mixing 100 grams powder with 300 grams water will likely give you about 300 grams total mixture (the HPW Complete, according to the volumes Peggy listed per batch, dissolves in the water and does not increase the volume)
So once mixed you have 46 grams protein in 300 grams water or about 15.33 grams protein per 100 grams of the mixture.
Now that is just an example to show you the process of doing the calculation.
I do not know exactly how much a 1/2 cup of any of the HPW new powders weighs. Wombaroo High Protein Supplement weighs about 80 grams per 1/2 cup but the other powders each have a different formula so they will weigh different amounts.
Since we use US measurements and do not usually weigh the ingredients then the amount of protein in 1/2 cup powder would need to be calculated first based on grams per kg.
Our standard measurement for water is 1 cup. 1 cup water is actually 236.5 grams by weight (commonly rounded to 240 grams per cup for easier calculation) If you mix other liquids with the powders, their weight per cup will be different as well.
Sorry this ended up to be an Algebra for Glider food lesson - but the short answer to the question "Does this mean the entire batch will have 14% protein or is this per serving?" Is that you need to define what the percentage relates to.
I prefer to think in terms of grams of protein per tablespoon serving. I have calculated my own diet recipes but do not have enough information to calculate the diets that use the new HPW powders.