John Cole Hairston
Biology Lab 2107 W 7:00
October 14th, 2015
Analysis of Consumer Products with
Unknown Protein Concentrations
Using Spectrophotometry
Abstract
Consumer products typically give detailed information about their ingredients and nutrients. However, the concentration of a specific nutrient may not always be clear from just the label information alone, and in some cases the product labels may not be accurate. Thus, it may be hard to compare the concentration level of a certain nutrient, such as protein, amongst different products. In this experiment, we are using various techniques to calculate the protein concentrations of three different consumer products (Whole Milk, Protein Powder, and Muscle Milk) for comparison. Using spectrophotometry to find the absorbance of known protein concentrations, the collected data determines a …show more content…
We will then use this relationship that is found to calculate the concentration of the three consumer products. Upon calculating the protein concentration of each product, we will then compare each calculated amount with the amount describe by the product label to test for accuracy.
Introduction
The three different consumer products that are being tested have different known protein amounts, although the protein concentrations listed for each of the three products may not be entirely accurate. The Whole Milk contains 33.898 mg/mL of protein, the Muscle Milk contains 60.386 mg/mL of protein, and the Protein Powder contains 21.134 mg/mL of protein. If a product were tested for protein concentration using spectrophotometry, how would the calculated concentrations match up to the labels?
What factors could alter the accuracy of a
Biology Lab 2107 W 7:00
October 14th, 2015
Analysis of Consumer Products with
Unknown Protein Concentrations
Using Spectrophotometry
Abstract
Consumer products typically give detailed information about their ingredients and nutrients. However, the concentration of a specific nutrient may not always be clear from just the label information alone, and in some cases the product labels may not be accurate. Thus, it may be hard to compare the concentration level of a certain nutrient, such as protein, amongst different products. In this experiment, we are using various techniques to calculate the protein concentrations of three different consumer products (Whole Milk, Protein Powder, and Muscle Milk) for comparison. Using spectrophotometry to find the absorbance of known protein concentrations, the collected data determines a …show more content…
We will then use this relationship that is found to calculate the concentration of the three consumer products. Upon calculating the protein concentration of each product, we will then compare each calculated amount with the amount describe by the product label to test for accuracy.
Introduction
The three different consumer products that are being tested have different known protein amounts, although the protein concentrations listed for each of the three products may not be entirely accurate. The Whole Milk contains 33.898 mg/mL of protein, the Muscle Milk contains 60.386 mg/mL of protein, and the Protein Powder contains 21.134 mg/mL of protein. If a product were tested for protein concentration using spectrophotometry, how would the calculated concentrations match up to the labels?
What factors could alter the accuracy of a