IV. RESULT AND DISCUSSION
A. Prototype of chocolate filled milk powder
Based on the analytical result of Fe content in each type of iron salt, the quantity of each iron salt to be added for delivering 10 and 20 DV is calculated. With the Fe
content 33g100g, the amount of Iron Ferrous Sulphate added were 0.0259 dry matter for 10 DV and 0.0518 dry matter for 20 DV. With the Fe content
32.7g100g, the amount of Iron Ferrous Fumarate added were 0.0260 dry matter for 10 DV and 0.0520 dry matter for 20 DV. With Fe content 21.1g100g, the
amount of Iron Ferric Pyrophosphate added were 0.0405 dry matter for 10 DV and 0.0810 dry matter for 20 DV.
To prepare propotype, the mixing was performed with mixing sequence : Filled milk powder, milled sugar, cocoa powder, premix vitamin and mineral including Fe, as
well as mixing time : 6 minutes. The smallest quantity of iron salt added in chocolate filled milk powder for
delivering Fe fortification at 10 DV is Iron Ferrous Sulphate. Refer to MI-18.348-1, and internal guideline on how to perform dry mixing, made by Nestle, it is advised that
generally the smaller the quantity to be dry mix, the more diffucult to get it homogenous. Therefore the homogeneity test was based on Fe analysis of bulk
chocolate filled milk powder with Iron Ferrous Sulphate 10 DV FMP IS10. Table 9 Fe content in mixture of cfmp fortified with iron sulphate
10DV FMP IS10 for homogeneity test
Sample
Mean and Standard Deviation 9,30
± 0,15
Coefficient of Variation 1,6
9,21 9,32
FMP IS10 - 9th FMP IS10 - 10th
9,16 9,50
9,17 9,24
9,36 9,48
9,12 9,50
FMP IS10 - 5th FMP IS10 - 6th
FMP IS10 - 7th FMP IS10 - 8th
FMP IS10 - 1st FMP IS10 - 2nd
FMP IS10 - 3rd FMP IS10 - 4th
± 0,25
± 0,08
0,12 ±
0,12 ±
0,22 ±
0,28 Fe - Average mg100g
± 0,82
± 0,11
± 0,04
± 0,01
±
Refer to MI-18.348-1, an internal guideline on how to perform dry mxing, made by Nestle, it was concluded that from above Fe analysis, as shown in Table 9, with
coefficient of variation CV 2, the bulk sample was considered marginally homogenous. Therefore this bulk was acceptable for next step in this research.
Since the others bulk samples were prepared with the same mixing condition and mixing equipment, they were assumed having the same homogeneity as bulk
chocolate filled milk powder with Iron Ferrous Sulphate 10 DV FMP IS10.
B. Selection of iron type based on chemical, micro and sensory evaluation
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