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  • Title: [Grapefruit juice nutritional profile].
    Author: Ivanova NN, Khomich LM, Perova IB, Eller KI.
    Journal: Vopr Pitan; 2018; 87(5):85-94. PubMed ID: 30592894.
    Abstract:
    Based on the published data on the content of nutritive (NS) and biologically active substances (BAS) and the results of studies of various samples of domestic industrial grapefruit juice, the article presents the nutrient profile of grapefruit juice containing data about more than 30 NS and BAS. Grapefruit juice is one of the relatively low-calorie fruit juices - 100 ml of grapefruit juice contains an average of 39 kcal. Like other citrus juices, it is rich in organic acids, the main of which is citric acid (0.8-2 g/100 ml). Potassium, magnesium, vitamin C, as well as flavonoids (mostly narigin) are the most significant for the estimation of nutritional and biological value of grapefruit juice of industrial production. A glass of grapefruit juice contains, on average, about 10% of the daily requirement in potassium, 6% - in magnesium and about 100% - in vitamin C. The amount of flavonoids in a glass of grapefruit juice provides up to 60% of the adequate daily intake. Conducted studies of fresh grapefruits purchased in the trade network show that the content of potassium, magnesium and vitamin C in grapefruit juice of industrial production is comparable to the content of these micronutrients in fresh fruits.
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