Physical characteristics of modified milkfat in high-melting fat preparation.
Anhydrous milkfat (AMF) was fractionated to obtain a series of high-melting milkfat fractions (HMF). Solid fat content (SFC) of HMF as determined by nuclear magnetic resonance (NMR) was in the range 37.6-43.6% and 21.2-27.5% measured at 20 and 30 degrees C, respectively. The HMF have a higher melting characteristic compared to AMF as analyzed by differential scanning calorimetry (DSC) with melting enthalpies of 92.2-105.0 J/g and melting peak temperatures of 39.3-41.5 degrees C. The AMF was also blended with soft palm stearin (SPOs and/or hard palm stearin (HPOs)) according to a three conventional component mixture design which providing suitable formulations for HMF. This represented three selected blends of AMF:SPOs:HPOs at three different proportions (70:15:15, 60:30:10 and 50:45:5), having SFC and DSC melting characteristics of HMF. The study revealed that higher-melting characteristics of AMF could be achieved equally well by using both fractionation and blending techniques.
Nor Hayati
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I
Food Science Department, Faculty of Science and Technology, Kolej Universiti Sains & Teknologi Malaysia, Mengabang Telipot, 21030 Kuala Terengganu, Terengganu, Kuala Lumpur, Malaysia.
Aminah
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A
Mamot
S
S
Nor Aini
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I
Noor Lida
H M
HM
D000818:Animals; D005591:Chemical Fractionation; D004041:Dietary Fats / Q000032:analysis*; D005511:Food Handling; D005524:Food Technology; D006358:Hot Temperature; D008892:Milk / Q000737:chemistry*; D010938:Plant Oils
D004041:Dietary Fats; D010938:Plant Oils