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Table 1. An interactive model for investigating the effect of  milk composition on yield, theoretical yield, cheese making efficiency, fat and protein retention and fat in dry matter for Cheddar cheese

 

 

 
 
 
Milk Composition % (w/w)      
Vat no 1 2 3 4 5 Mean SD CV  
       
Fat 3.49 0.07 2.12  
Protein 2.98 0.09 3.15  
Casein 2.31 0.09 3.81  
Casein as a % of protein 77.96 78.72 77.08 77.74 76.19 77.54 0.95 1.23  
Casein to fat ratio 0.68 0.67 0.64 0.67 0.66 0.66 0.013 1.93  
         
Cheese Composition        
Fat 34.45 0.57 1.65  
Protein 25.09 0.69 2.77  
Casein 23.91 0.68 2.86  
Moisture 35.80 1.18 3.29  
         
Cheese Yield (kg/100 kg of milk or %)      
Actual yield 9.39 0.20 2.09  
Actual yield adjusted to 37% moisture 9.97 9.71 9.44 10.25 9.22 9.72 0.41 4.23  
Theoretical yield (Van Slyke)  9.43 9.31 9.14 9.23 9.22 9.27 0.11 1.19  
Theoretical yield (modified Van Slyke)** 9.85 9.50 9.24 9.52 9.19 9.46 0.26 2.77  
Cheese making efficiency (Actual yield/theoretical yield-Van Slyke) x 100 97.95 100.86 101.76 105.38 100.83 101.36 2.67 2.63  
     
         
Retention  Factors (%)        
         
Casein retention 92.06 100.03 100.29 96.39 96.82 97.12 3.34 3.44  
       
Fat retention 89.83 93.90 93.00 93.83 93.00 92.71 1.67 1.80  
       
Protein retention 75.63 82.26 80.73 78.23 78.16 79.00 2.56 3.24  
       
Quality Factors  
Fat in Dry Matter (FDM) 53.8 53.8 52.7 50.9 51.5 52.56 1.33 2.52  
       
Milk composition, cheese composition and yield figures can be changed to explore the effects of composition of milk on yield and retention factors. You may add in your own data and investigate yield and component retention.** Van Slyke equation has been modified to use only casein and fat to predict yield but assumes cheese of 37% moisture.  SD = standard deviation. CV = coefficient of variation. Data copyright to the Dairy Science and Food Technology web site. Information presented for educational purposes only.  Use of this data or data generated using this free software is not warranted in any way. The statistical analysis has been provided for illustrative purposes only and the author is not recommending that  CV and SD should be the only measures  used to analyse yield data.  
 
 
 
 
     
                                    
                                                         

 

How to cite this article

Mullan, W.M.A. (2007) [On-line] UK: Available: Accessed:

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