Aleem Mohammad
Stone
Bio 2107 Lab
14 Sept. 2015
Accuracy Check of Protein Concentration vs FDA Labels
Abstract
The issue of food label accuracy is becoming very popular in the United States. The widespread awareness of genetically modified organisms and greater insight about the mass production of food lead to many questions and uncertainty about the labeling of edible products. The US Food and Drug Administration (FDA)’s accuracy in labeling will be tested in this experiment to see whether or not the labels on these products are fairly accurate. Since protein is essential to human life and is a popular part of the label to look at, three products were tested to see if the protein concentration matches their labels. Muscle milk, protein shake, …show more content…
The slope of the line was found by a point (1.6, .96) and the difference in y was divided by the difference in x. The equation for the line of best fit is y = (.6) x
Table 2: Unit Conversions from g/serving to mg/ml for Protein Concentration
Sample Protein content on Product Label in grams/serving Conversion from grams/serving to mg/ml
Whole milk 8g/ 236ml 33.8mg/ 240 ml
Protein Shake 5g/ 8 fl. Oz. 21.1mg/ 237ml
Muscle Milk 25 g/ 414ml 60.4 mg/ml
The conversion is necessary so that all recorded data would have the same units for comparison and is needed due to the fact that the basic unit for concentration is mg/ml.
Table 3: Calculated Protein Concentrations
Sample Initial Absorbance (OD) Dilution Absorbance (1:50) with DI water Calculated Concentration with dilution in consideration(mg/ml) Concentration on Label (mg/ml)
Protein Shake 1.912 0.164 13.667 21.1
Whole Milk 2.391 0.431 35.914 33.8
Muscle Milk 2.176 0.700 58.333
Stone
Bio 2107 Lab
14 Sept. 2015
Accuracy Check of Protein Concentration vs FDA Labels
Abstract
The issue of food label accuracy is becoming very popular in the United States. The widespread awareness of genetically modified organisms and greater insight about the mass production of food lead to many questions and uncertainty about the labeling of edible products. The US Food and Drug Administration (FDA)’s accuracy in labeling will be tested in this experiment to see whether or not the labels on these products are fairly accurate. Since protein is essential to human life and is a popular part of the label to look at, three products were tested to see if the protein concentration matches their labels. Muscle milk, protein shake, …show more content…
The slope of the line was found by a point (1.6, .96) and the difference in y was divided by the difference in x. The equation for the line of best fit is y = (.6) x
Table 2: Unit Conversions from g/serving to mg/ml for Protein Concentration
Sample Protein content on Product Label in grams/serving Conversion from grams/serving to mg/ml
Whole milk 8g/ 236ml 33.8mg/ 240 ml
Protein Shake 5g/ 8 fl. Oz. 21.1mg/ 237ml
Muscle Milk 25 g/ 414ml 60.4 mg/ml
The conversion is necessary so that all recorded data would have the same units for comparison and is needed due to the fact that the basic unit for concentration is mg/ml.
Table 3: Calculated Protein Concentrations
Sample Initial Absorbance (OD) Dilution Absorbance (1:50) with DI water Calculated Concentration with dilution in consideration(mg/ml) Concentration on Label (mg/ml)
Protein Shake 1.912 0.164 13.667 21.1
Whole Milk 2.391 0.431 35.914 33.8
Muscle Milk 2.176 0.700 58.333