Example 1
A ของผสม of fat was carried out, by the mixing of animal and vegetable fat. Advantageously, on the contrary to the oil ของผสม of the prior art infant formulae, this ของผสม has a MCFAs composition close to a human milk reference data.
The oil ของผสม composition was the following, ที่คิดจาก the total fat:
• milk fat: 40 %;
• high-oleic sunflower oil: 9%;
• sunflower oil: 14%;
• canola oil: 12%;
• coconut oil: 8%;
• oil ของผสม of ARA and DHA (ratio 1:1): 2%;
• Betapol® (from 101 Loders Croklaan): 15%.
Betapol® could be replaced efficiently by Infat® from AAK/.
Each of these fat sources is a refined oil suitable for infant nutrition applications.
The ไลปิด composition of this ของผสม was characterized by two methods as described below.
Determination of ไตรเอซิลกลีเซอรอล was performed by non-aqueous reversed phase liquid chromatography and hybrid mass spectrometry as recently described in Journal of ไลปิด Research (2013) volume 54, 290-305. This approach enables the global detection and identification of TAG in their intact form (without chemical derivatization) thus the overview of TAG size distribution is possible and the regioisomeric distribution of various FA ที่รวมถึง that of P, can be measured simultaneously. Briefly, the identification of the TAG was performed based on the accurate mass and fragmentation pattern obtained by data-dependent fragmentation. The quantitation of TAG was based on the high resolution ion chromatograms, while relative proportion of sn-1(3)/sn-2
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regioisomers was calculated based on generalized fragmentation models and the relative intensities observed in the product ion spectra.
Determination of แฟตตี้แอซิด was performed by gas chromatography flame ionization detection as described in IUPAC method 2.304, but using methyl-undecanoate as internal standard and a cyanopropylpolysiloxane capillary column. This classical reference approach enables the indirect but most sensitive and most precise quantification of individual (ที่รวมถึง trans) fatty แอซิดs. Briefly, the samples are subjected to transmethylation under alkali conditions resulting in the methyl esters of all แฟตตี้แอซิด. The identification and quantification of the individual แฟตตี้แอซิด methyl esters is performed based on their chromatographic retention time and peak area respectively.
The total ปริมาณ of C8:0 to C12:0 แฟตตี้แอซิด was 7.7 g/ 100 g oil.
The total ปริมาณ of ไตรเอซิลกลีเซอรอล with the total carbon of the acyl chains between C30 and C36, considered as medium chain triglycerides (MCTs), was 9.5 g/ 100 g oil.
The sources of the palmitic แอซิดic are as follows, ที่คิดจาก the total palmitic แอซิด:
• milk fat: 55 %;
• high-oleic sunflower oil: 2%;
• sunflower oil: 5%;
• canola oil: 3%;
• coconut oil: 3%;
• oil ของผสม of ARA and DHA (1:1): 1%;
• Betapol®: 31%.
The total ปริมาณ of palmitic แอซิด esterified in the sn-1 or sn-3 position was 9.5 g/ 100 g oil (thus 56% in all palmitic แอซิด).
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The total ปริมาณ of palmitic แอซิด esterified in the sn-2 position was 7.4 g/ 100 g oil (thus 44% in all palmitic แอซิด).
The total ปริมาณ of PUFAs was 14.0 g/ 100 g oil.
The total ปริมาณ of LC-PUFAs was 0.9 g/ 100 g oil.
The detailed composition of the oil ของผสม, ที่คิดจาก the total fat, was measured as details in Table 1 below.
Table 1: Composition of the oil ของผสม ที่คิดจาก the total fat