Division of Basic Sciences, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India.
Division of Fruit Crops, ICAR-Indian Institute of Horticultural Research, Hesaraghatta Lake Post, Bengaluru, Karnataka 560 089, India.
Food Chem. 2021 Aug 15;353:129426. doi: 10.1016/j.foodchem.2021.129426. Epub 2021 Mar 3.
Nutritional and biochemical composition of dragon fruit (Hylocereus) species H. undatus (fruits with white pulp and pink skin), and H. polyrhizus (fruits with red pulp and pink skin) were investigated to develop the nutritional composition data for dragon fruit and compare the difference between H. undatus and H. polyrhizus. The pH, TSS, total sugar, moisture, ash, protein, and dietary fibre content varied between 4.8 and 5.4, 8-12%, 5.13-7.06%, 82-85%, 0.7-0.85%, 0.90-1.1% and 0.8-1.0%, respectively. Total phenolics and flavonoids content varied between 25 and 55 mg GAE and 15-35 mg CE per 100 g, respectively. H. polyrhizus have a significantly high quantum of phenolics and antioxidant potential than H. undatus. 100 g fruit contained about 120-200 mg K, 30-45 mg Mg, 20-45 mg Ca, 20-35 mg P, 0.70-1.5 mg Fe, and 0.20-0.40 mg Zn. Vitamin C was found maximum (6 mg/100 g), followed by vitamin E (150 µg), pantothenic acid (50 µg), and vitamin K1 (25 µg). It is an ideal fruit for maintaining good health as it has low calories.
火龙果（Hylocereus）的营养和生化成分的研究，火龙果品种有白肉红皮的 H. undatus 和红肉红皮的 H. polyrhizus，旨在为火龙果开发营养成分数据，并比较 H. undatus 和 H. polyrhizus 之间的差异。火龙果的 pH 值、总可溶性固体（TSS）、总糖、水分、灰分、蛋白质和膳食纤维含量分别在 4.8 到 5.4 之间、8-12%、5.13-7.06%、82-85%、0.7-0.85%、0.90-1.1%和 0.8-1.0%之间。总酚和类黄酮含量分别在 25 到 55 mg GAE 和 15-35 mg CE 每 100 g 之间。H. polyrhizus 的酚类物质和抗氧化能力比 H. undatus 显著更高。100 g 火龙果含有约 120-200 mg K、30-45 mg Mg、20-45 mg Ca、20-35 mg P、0.70-1.5 mg Fe 和 0.20-0.40 mg Zn。维生素 C 的含量最高（6 mg/100 g），其次是维生素 E（150 µg）、泛酸（50 µg）和维生素 K1（25 µg）。火龙果热量低，是一种理想的保持健康的水果。
