Kumar Dinesh, Ladaniya M S, Gurjar Manju
ICAR-Central Citrus Research Institute, Nagpur, Maharashtra India.
J Food Sci Technol. 2019 Jan;56(1):217-223. doi: 10.1007/s13197-018-3477-3. Epub 2018 Nov 8.
Phytochemicals and antioxidant potential of sixteen varieties of citrus comprising mandarins, limes, sweet orange and underutilized fruits were assessed. Limonoids, ascorbic acid and carotenoids significantly varies in the varieties. The antioxidant potential adjudged by evaluation with four accepted assays ABTS, DPPH, FRAP and TPC. Among them, Kachai lemon retains high antioxidant capacity with the assays DPPH (9.38 mM L Trolox) and also recorded highest TPC (13.57 mM L Trolox). Pomelo has shown a tremendous potential having the highest ABTS (4.49 mM L Trolox) and FRAP (1.92 mM L Trolox) activity, which reflects its potential at par with the grapefruit. Significant correlation has been found between DPPH and TPC, and also FRAP with TPC. It can be assumed that among citrus cultivar, Kachai lemon and Pomelo underutilized citrus fruit are showing enhanced potential to antioxidant capacity and can be exploited in terms of energy, nutrients and health supplements.
对包括柑橘、酸橙、甜橙和未充分利用的水果在内的16个柑橘品种的植物化学物质和抗氧化潜力进行了评估。柠檬苦素、抗坏血酸和类胡萝卜素在不同品种中差异显著。通过ABTS、DPPH、FRAP和TPC这四种公认的测定方法评估抗氧化潜力。其中，卡柴柠檬在DPPH测定中具有较高的抗氧化能力（9.38 mM L Trolox），并且TPC也最高（13.57 mM L Trolox）。柚子具有巨大的潜力，其ABTS活性最高（4.49 mM L Trolox），FRAP活性最高（1.92 mM L Trolox），这表明它与葡萄柚具有相当的潜力。已发现DPPH与TPC之间以及FRAP与TPC之间存在显著相关性。可以推测，在柑橘品种中，未充分利用的卡柴柠檬和柚子表现出增强的抗氧化能力潜力，可在能量、营养和健康补充剂方面加以利用。
