Abstract

Fatty acids content in walnut oil was investigated and compared with human milk, infant formula (IF) and animal milk (AM), then subjected to in-vitro digestion. Walnut oil (80.04 mg/g) and Human milk (73.11 mg/g) were comprised of unsaturated fatty acids, while AM (52.23 mg/g) and IF (40.50 mg/g) were significantly lower in unsaturated fatty acids. Confocal micrographs and particle size showed complete digestion of walnut oil-based infant formula (IFW) than AM and IF. Total fatty acid released during in-vitro digestion in different samples was IFW (2563.26 μmol/g fat), HM (2420.38 μmol/g fat), AM (1863.70 μmol/g), and in IF (3001.20 μmol/g). In IFW and HM, C18:2n6c was the highest single fatty acid released, with 47% and 40%, respectively, which was substantially different from AM and IF. Our research findings might help design an infant formula closer to human milk.

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