Page 5 - Handbook on Food Fortification in Kenya
P. 5

4)	 PRINCIPLES OF FORTIFICATION 					                           33

Introduction to fortification principles					                   33
Extraction rate considerations						                            34
Installation considerations						                               35
Premix definition								                                       37
Premix addition rates							                                    38
Premix addition mechanisms						                                39
Premix addition systems - Continuous					                       39
Premix addition systems - Calibration					                      45
Feeder operation guidelines						                               47
Premix addition systems - Batch						                           50
Premix addition systems – Small scale fortification				         51
Maintenance of continuous systems and batch systems			          53
Premix addition – edible oils/fats						                        54
Batch fortification of fats and oils						                      55
Changes in vitamin a in fortified fats/oils					                56
Premix manufacturing - Factory level					                       57
Premix handling								                                         58

5)	 COST OF FORTIFICATION – MAIZE, WHEAT FLOUR, FATS AND OILS	  64

Basic pricing								                                           64
Maize flour basic pricing – 24MT/Day					                       66
Maize flour basic pricing – 3MT/Day					                        67
Fats and oils basic pricing – 50 MT/Day					                    68
Premix costs								                                            69

6)	 QUALITY ASSURANCE – IN THE FORTIFICATION PROCESS		          70

Importance of quality assurance						                           70
How to achieve the qa/qc objectives					                        71
Control points in QA/QC factory checks					                     72
Determining quantity of fortificant (vitamin a example)			      72
Production records							                                       73
Site audits								                                             74
Sampling plans								                                          75
Rapid tests								                                             77
Troubleshooting flour fortification						                       78

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