Federal Institute of Education, Science and Technology of Santa Catarina, IFSC Campus Lages, Department of Environment and Health, Santa Catarina State, Brazil.
J Sci Food Agric. 2019 Dec;99(15):6778-6787. doi: 10.1002/jsfa.9961. Epub 2019 Sep 30.
The international marketing of native Brazilian fruits may benefit from research into discrimination between plants with particular properties. Plants with certain characteristics have strong potential for use in agroindustry and for the development of new processed products. In the current study, 12 uvaia plants (Eugenia pyriformis Cambess), native to Brazil, were geographically discriminated by chemometric methods, using nutritional composition, physicochemical characterization, bioactive compounds, and antioxidant capacity data.
Uvaia fruits presented good nutritional value, with a high moisture and carbohydrate content. All fruits presented a pH value lower than 4, being classified as highly acidic, and the total soluble solids (°Brix) ranged between 2.90 and 9.80. Some plants had a higher vitamin C content, and all the plants had a high bioactive compound content (phenolic and flavonoids) and antioxidant capacity in 1,1-difenil-2-picrilhidrazil (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and ferric reducing antioxidant power (FRAP) assays. Hydroethanolic solution was the best extraction solvent tested when compared with water and ethanol. Using principal component analysis, it was possible to discriminate among the plants in five different groups; however, just one group was responsible for higher antioxidant compound content.
In this work, 12 native uvaia plants were discriminated by their geographical origin using a chemometric approach. Genetic improvement based on natural selection could be accomplished with some of the plants to improve the quality of uvaia pulp and to develop new cultivars. © 2019 Society of Chemical Industry.
原产于巴西的水果在国际市场上的营销可能得益于对具有特殊特性的植物进行区分的研究。具有某些特征的植物具有很强的潜力可用于农业综合企业，并开发新的加工产品。在本研究中，使用化学计量学方法对 12 种原产于巴西的 uvaia 植物（Eugenia pyriformis Cambess）进行了地理区分，使用了营养成分、物理化学特性、生物活性化合物和抗氧化能力数据。
uvaia 果实具有良好的营养价值，水分和碳水化合物含量高。所有果实的 pH 值均低于 4，属于高度酸性，总可溶固形物（°Brix）在 2.90 到 9.80 之间。一些植物的维生素 C 含量较高，所有植物的生物活性化合物含量（酚类和类黄酮）和 1,1-二苯膦-2-皮利德哈齐尔（DPPH）、2,2'-氮杂-双（3-乙基苯并噻唑啉-6-磺酸）（ABTS）和铁还原抗氧化能力（FRAP）测定中的抗氧化能力都很高。与水和乙醇相比，水-乙醇溶液是测试的最佳提取溶剂。使用主成分分析，可以将植物分为五个不同的组进行区分；然而，只有一组植物的抗氧化化合物含量较高。
在这项工作中，使用化学计量学方法对 12 种原产于巴西的 uvaia 植物进行了基于其地理起源的区分。可以对一些植物进行遗传改良，以提高 uvaia 果肉的质量，并开发新的品种。© 2019 化学工业协会。
