Phytochemical Antioxidants: Past, Present and Future
Phytochemical Antioxidants: Past, Present and Future
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DOI：
10.5772/intechopen.95627
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发表时间：
2021-01
期刊：
影响因子：
--
通讯作者：
Y. Sakihama;H. Yamasaki
中科院分区：
文献类型：
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作者：
Y. Sakihama;H. Yamasaki
大多数难以预防和治疗的疾病是由具有复杂相互作用的多个成分控制的“综合征”。无论这些疾病的原因是什么，在疾病的进展中经常可以观察到有害活性氧（ROS）的过量产生。在这种情况下，由于过量生成的氧化剂，细胞可能受到“氧化应激”的挑战。抗氧化剂可以定义为清除细胞在氧化应激条件下过度产生的活性氧或自由基的化合物。水果和蔬菜中富含的植物色素类黄酮和甜菜素不仅与活性氧发生反应，还与活性氮（RNS）和活性硫（RSS）发生反应。本文就植物色素抗氧化功能的研究进展进行了综述，并对植物化学抗氧化剂的研究前景进行了展望。
Most diseases that are difficult to prevent and cure are “syndromes” that are governed by multiple components with complicated interactions. Whatever the cause of such diseases, overproduction of harmful reactive oxygen species (ROS) can often be observed in progression of the disease. Under such conditions, the cells may be challenged by “oxidative stress” due to excessively generated oxidants. Antioxidants can be defined as chemical compounds that scavenge ROS or free radicals over-produced in the cells under oxidative stress conditions. The plant pigments flavonoids and betalains, rich in fruits and vegetables, are reactive not only with ROS but also with reactive nitrogen species (RNS) and possibly with reactive sulfur species (RSS). Here, we provide an overview of updates on the antioxidative functions of the plant pigments along with some prospects for future research on phytochemical antioxidants.