Antioxidant polyphenols from fruits of the Myrtle family

桃金娘科（Myrtaceae）的许多物种在整个热带和亚热带世界都是受欢迎的食用品。此外，从南美洲到东南亚，有些在不同的传统做法中被用作药用。在1，1-二苯基-2-苦基肼（DPPH）测定中，两种丁香属（桃金娘科）的果实显示出强的抗氧化活性，随后对丁香亚族（subtribe Eugeniinae）中的相关植物的民族医学和化学分类学研究导致了这样的假设，即这些果实含有对人类生物分子表现出氧化保护作用的类黄酮或其他多酚化合物。十个流行的可食用物种从这个类群的果实将使用DPPH测定的抗氧化活性进行分析。最活跃的提取物将进行更详细的研究，以分离和确定特定的多酚抗氧化植物化学物质。预计将发现新的抗氧化剂化合物，并充分阐明其化学结构。然后，这项研究将使用开发的分析工具，仔细研究由最活跃的水果制成的饮料和醋，以确定水果中有益的植物化学物质是否可以在商业产品中检测到。

Many species of the Myrtle family (Myrtaceae) are popular edibles throughout the tropical and subtropical world. In addition, some are used medicinally in divergent traditional practices from South America to Southeast Asia. The fruits of two species of Eugenia (Myrtaceae) have shown a strong antioxidant activity in the 1,1-diphenyl-2- picrylhydrazyl (DPPH) assay, and subsequent ethnomedical and chemotaxonomic study of related plants in the subtribe Eugeniinae have led to the hypothesis that these fruits contain flavonoids or other polyphenolic compounds that exhibit an oxidative protection to biomolecules in humans. The fruits of ten popular edible species from this taxa will be analyzed for antioxidant activity using the DPPH assay. The most active extracts will be studied in greater detail to isolate and identify specific polyphenolic antioxidant phytochemicals. It is expected that novel antioxidant compounds will be discovered, and their chemical structures will be fully elucidated. This research will then use the analytical tools developed to look closely at beverages and vinegar made from the most active fruit to ascertain whether the beneficial phytochemicals in the fruit can be detected in commercial products.