Abstract
The present study investigated the enhancement of the nutritional value of soursop fruit (SF) juice through biotin fortification (BFS). The characterization of biotin fortification was conducted through biochemical analysis of total protein, lipid, total sugar, and total carbohydrate content. The BFS with high protein content resulted in (0.3445mg/mL), which enhanced solubility, improved stability and increased sensitivity. The total sugar content of the SF sample was found to be (0.212 mg/mL), and SF has a high carbohydrate concentration (6.55 mg/mL), ensuring efficient microbial fermentation. The DPPH assay showed 92% inhibition at 500 µg/mL, with an IC₅₀ of 83.70 µg/mL, indicating strong antioxidant activity and radical-scavenging potential. Qualitative phytochemical screening confirmed the presence of tannins, flavonoids, saponins, alkaloids, and terpenoids. The effect of preservatives demonstrated that the combined treatment of Pasteurization (60℃ for 1 hour) and acidification with lime or benzoate (pH 6.21) significantly reduced the total microbial count, which was between 4.2 x 106 and 27.2 x 106 cfu mL-1 to 2.9 x104 to 7.0 x 103 cfu mL-1 over 8 days of storage at room temperature. The study concluded that the juice made from this fruit contains an appropriate amount of protein, carbohydrates, and lipids, has high nutritional value, antioxidant properties, and microbial stability, and can be consumed by children and adults.
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