Abstract
“Ricotta” cheese is a traditional and popular Italian fresh whey cheese commonly produced from cow’s milk. Food fortification is an efficient strategy to reduce the high global prevalence of vitamin D deficiency. This study aims to study the chemical-nutritional analysis of ricotta cheese and to assess its suitability as a dairy matrix for vitamin D fortification. The chemical-nutritional analyses revealed that ricotta cheese is a good source of proteins (7.8 g/100 g) with high levels of branched-chain amino acids (1.8 g/100 g). Moreover, ricotta contains high levels of calcium (0.4 g/100 g) and phosphorus (0.2 g/100 g). 50 mg of vitamin D3 were added to 95 kg of cheese reaching a mean fortification level of 41.4 ± 4.0 µg/100 g of ricotta cheese. The fortification study showed that vitamin D homogenously distributes in ricotta cheese after the homogenisation process. Moreover, vitamin D3 has high heat stability (93.8 ± 1.8%) and remains stable throughout the shelf-life of the fortified food. This study demonstrates that ricotta cheese represents an ideal alternative dairy matrix for vitamin D3 fortification.
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