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  • Title: Use of excipient emulsions for improving the bioaccessibility of antioxidants in tomato sauce.
    Author: Nemli E, Capanoglu E, McClements DJ, Tomas M.
    Journal: Food Chem; 2023 Oct 30; 424():136395. PubMed ID: 37263092.
    Abstract:
    In this study, tomato sauces were prepared by adding different levels of emulsified oil (0, 5, 10, or 20 wt%) to tomato pomace. The effects of adding these excipient emulsions on the concentration, bioaccessibility, and bioactivity of the carotenoids and phenolics in the tomato sauces were then determined. The carotenoid and phenolic profiles were analyzed by HPLC and LC-MS/MS, respectively. The bioaccessibility values of the lycopene, lutein, and β-carotene were around 36-82%, 73-112%, and 67-94% for tomato sauces with excipient emulsions, respectively. In contrast, they were considerably lower for tomato sauces without excipient emulsions, being around 24-31%, 69-71%, and 45-62%, respectively. The TPC and TAC values of the tomato sauces with the excipient emulsions were significantly higher than those without. Considerably higher concentrations of carotenoids and phenolic compounds were detected in the tomato sauce samples containing the excipient emulsions. These results suggest that the presence of the oil droplets increased the extractability, stability, and bioaccessibility of the nutraceuticals in the tomato sauce.
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