Grumixama (Eugenia brasiliensis Lam.) cultivated in the Cerrado has high content of bioactive compounds and great antioxidant potential

ABSTRACT: Grumixama (Eugenia brasiliensis Lam.) is a Brazilian berry native to the Atlantic Rainforest. Information on nutritional and bioactive profiles of the fruit cultivated in the Brazilian Savannah (Cerrado) is not available in literature. The aim of this study was to investigate the physical and proximate composition; mineral, total phenolics, total tannins and total carotenoids contents; and antioxidant capacity (DPPH and FRAP assays) of the dark purple grumixama cultivated in the Cerrado area (Goiás State). Results showed a similar physical and proximate composition to those of grumixama native to the Atlantic Rainforest. However, grumixama from Cerrado presented the highest dietary fiber and magnesium contents. In addition, the Cerrado grumixama showed higher content of total phenolics (with a large amount of tannins), carotenoids and antioxidant capacity than those of grumixama native to the Atlantic Rainforest, cherry, blueberry, and fruits native to the Cerrado. Thus, the consumption of whole fruit (peel, pulp and seed) in healthy diets and its use as an ingredient for functional food products should be encouraged.

摘要：巴西蒲桃（Grumixama，学名Eugenia brasiliensis Lam.）是一种原产于大西洋沿岸热带雨林的巴西浆果。目前学界尚未见有关巴西热带稀树草原（Cerrado）产区栽培的该果实营养与生物活性成分特征的研究报道。本研究旨在探究巴西戈亚斯州塞拉多产区栽培的深紫色巴西蒲桃的物理特性、常规营养组成、矿物质、总酚类、总单宁及总类胡萝卜素含量，以及其抗氧化能力（采用DPPH与FRAP实验法测定）。结果显示，该产区巴西蒲桃的物理特性与常规营养组成与大西洋沿岸热带雨林原生种群相近。但塞拉多产区的巴西蒲桃具有更高的膳食纤维与镁元素含量。此外，相较于大西洋沿岸热带雨林原生巴西蒲桃、樱桃、蓝莓以及塞拉多本土果实，塞拉多产区巴西蒲桃的总酚类（富含单宁）、类胡萝卜素含量与抗氧化能力均更优异。综上，应鼓励在健康膳食中食用完整果体（含果皮、果肉与种子），并将其作为功能性食品的原料加以开发利用。