Moyo Mack, Amoo Stephen O, Aremu Adeyemi O, Gruz Jiri, Šubrtová Michaela, Jarošová Monika, Tarkowski Petr, Doležal Karel
Department of Horticultural Sciences, Faculty of Applied Sciences, Cape Peninsula University of Technology, Bellville, South Africa.
Agricultural Research Council, Roodeplaat Vegetable and Ornamental Plants, Pretoria, South Africa.
Front Chem. 2018 Jan 4;5:128. doi: 10.3389/fchem.2017.00128. eCollection 2017.
The study compared mineral, chemical and antioxidant qualities of , a wild leafy vegetable, with two widely consumed commercial vegetables, and . Mineral nutrients were quantified with inductively coupled plasma mass spectrometry (ICP-MS), phenolic compounds using ultra-high performance liquid chromatography coupled to a mass spectrometer (UHPLC-MS) and β-carotene and vitamin C using high performance liquid chromatography with a photodiode array detector (HPLC-PDA). The antioxidant potential was evaluated using 2,2-diphenyl-1-picryl hydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays. had highest concentrations of phosphorus, potassium, calcium, iron, zinc, ascorbic acid, total phenolics, and flavonoids; whereas sodium, magnesium, manganese, copper and β-carotene were higher for . The significantly higher antioxidant activity ( ≤ 0.05) exhibited by in comparison to the two commercial vegetables may be due to its significantly high levels of vitamin C and phenolic acids. These findings on the mineral, chemical and antioxidant properties of provide compelling scientific evidence of its potential in adding diversity to the diet and contributing toward the daily nutritional requirements of millions of people for food and nutritional security.
该研究将一种野生多叶蔬菜的矿物质、化学和抗氧化特性与两种广泛食用的商业蔬菜进行了比较。使用电感耦合等离子体质谱法（ICP-MS）对矿物质营养素进行定量分析，使用超高效液相色谱-质谱联用仪（UHPLC-MS）分析酚类化合物，使用配备光电二极管阵列检测器的高效液相色谱法（HPLC-PDA）分析β-胡萝卜素和维生素C。使用2,2-二苯基-1-苦基肼（DPPH）和氧自由基吸收能力（ORAC）测定法评估抗氧化潜力。[野生多叶蔬菜名称]的磷、钾、钙、铁、锌、抗坏血酸、总酚类和黄酮类化合物浓度最高；而[商业蔬菜名称1]的钠、镁、锰、铜和β-胡萝卜素含量更高。[野生多叶蔬菜名称]与两种商业蔬菜相比，抗氧化活性显著更高（P≤0.05），这可能归因于其维生素C和酚酸含量显著较高。这些关于[野生多叶蔬菜名称]的矿物质、化学和抗氧化特性的研究结果，为其在增加饮食多样性以及满足数百万人日常食物和营养安全的营养需求方面的潜力提供了有力的科学证据。
