| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2433897 | International Dairy Journal | 2016 | 6 Pages |
The main objective of our study was to determine the effect of different concentration of four different preservatives, potassium dichromate, Azidiol, Bronopol and Microtabs II, on the results of laboratory analyses of milk using mid-infrared spectrometry. The final concentrations of the preservatives in the raw cows' milk samples were 0.005%, 0.01%, 0.05%, 0.1%, 0.5% and 1% respectively. We analysed unpreserved, fresh bulk raw cows' milk 2 and 24 h after milking. The effect of preservatives on the composition of the milk was studied 24 h after preservation. The experiment was replicated 10 times. Each experiment was carried out after the calibration of the mid-infrared spectrophotometer using calibration samples preserved with 0.02% Bronopol. We found that the concentration of the preserving agent had a significant effect (P < 0.005) on the results of the laboratory analyses; therefore, the proper concentration of preservative has to be used for routine sample preservation.
