Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al.29 Listopada 54, 31-425 Kraków, Poland.
Molecules. 2020 Apr 14;25(8):1792. doi: 10.3390/molecules25081792.
Aging is accompanied by gradual accumulation of molecular damage within cells in response to oxidative stress resulting from adverse environmental factors, inappropriate lifestyle, and numerous diseases. Adequate antioxidant intake is a key factor of proper diet. The study aimed to assess the antioxidant/antiradical capacities of fruits (18 cultivars of the species: Duch., Duch., L., and Bouché) grown in central Europe. The analyses were based on the FRAP (ferric reducing antioxidant power), CUPRAC (cupric ion reducing antioxidant capacity), and DPPH (2,2-diphenyl-1-picrylhydrazyl radical) assays. The content of phenolic compounds and β-carotene was evaluated with HPLC (high performance liquid chromatography), while the main macro- and micronutrients by ICP-OES (inductively coupled plasma mass spectrometry). The results revealed high intraspecies variability within the genus. The Japanese 'Kogigu' fruits were distinguished as extraordinary sources of phenolic compounds, including syringic and protocatechuic acids, catechin, and kaempferol. Another popular cultivar 'Hokkaido' exhibited the highest antioxidant and antiradical capacities. Most of the fruits proved to be rich sources of zinc and copper. The obtained data are discussed in the context of optimized nutrition of the elderly and suggest that fruits should become daily components of their diet.
衰老是由于细胞内分子损伤的逐渐积累引起的，这些损伤是由于环境因素不利、生活方式不当以及许多疾病导致的氧化应激引起的。适当的抗氧化剂摄入是适当饮食的关键因素。本研究旨在评估生长在中欧的水果（18 个品种的 Duch., Duch., L., 和 Bouché）的抗氧化/抗自由基能力。分析基于 FRAP（铁还原抗氧化能力）、CUPRAC（铜离子还原抗氧化能力）和 DPPH（2,2-二苯基-1-苦基肼自由基）测定法。采用 HPLC（高效液相色谱法）评估酚类化合物和β-胡萝卜素的含量，而主要的宏量和微量元素则通过 ICP-OES（电感耦合等离子体质谱法）进行评估。结果表明，该属内存在高度的种内变异性。日本的“Kogigu”水果被认为是酚类化合物的特殊来源，包括丁香酸和原儿茶酸、儿茶素和山柰酚。另一个受欢迎的品种“北海道”则表现出最高的抗氧化和抗自由基能力。大多数水果都被证明是锌和铜的丰富来源。所得数据在老年人优化营养的背景下进行了讨论，并表明水果应该成为他们日常饮食的组成部分。
