Abstract This study aimed to evaluate the in vitro bioaccessibility of copper, iron, manganese and zinc in the baru (Dipteryx alata Vog.) almond and the bocaiuva (Acrocomia aculeata (Jacq.) Lodd) pulp and, macronutrients characterization. Centesimal composition, Aw, phytic acid, color, ascorbic acid, carotenoids and pH were determined. The total mineral concentration and in vitro bioaccessibility was quantified by flame atomic absorption spectrometry. The samples showed a composition with high nutritional value, where the baru almond was distinguished by the proteins, lipids and total dietary fibers; the bocaiuva pulp by the sugars, lipids, vitamin C and carotenoids. The total mineral concentrations in baru almond were 1.80; 8.65; 8.85 and 4.83 mg/100 g and in vitro bioaccessibility was 16.8; 21.4; 80.3 and 81.3% for Cu, Fe, Mn and Zn, respectively. For the bocaiuva pulp, the total mineral concentrations were 0.5; 4.5; 0.2 and 1.7 mg/100 g and in vitro bioaccessibility was 13.6; 15.0; 20.1 and 57.6% for Cu, Fe, Mn and Zn, respectively. The Pearson correlation coefficient verified that the phytic acid and ascorbic acid can influence the in the bioaccessibility. The results indicate the baru almond and the bocaiuva pulp as a natural source of nutrients and of minerals bioaccessible to the human organism.

中文翻译：

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巴鲁杏仁和 bocaiúva 果肉中 Cu、Fe、Mn 和 Zn 的体外生物可及性以及常量营养素表征

摘要 本研究旨在评估巴鲁 (Dipteryx alata Vog.) 杏仁和 bocaiuva (Acrocomia aculeata (Jacq.) Lodd) 果肉中铜、铁、锰和锌的体外生物可及性，以及常量营养素的表征。测定了百分含量、Aw、植酸、颜色、抗坏血酸、类胡萝卜素和 pH 值。通过火焰原子吸收光谱法量化总矿物质浓度和体外生物可及性。样品显示出具有高营养价值的成分，其中巴鲁杏仁的蛋白质、脂质和总膳食纤维含量高；bocaiuva 果肉由糖、脂质、维生素 C 和类胡萝卜素组成。baru杏仁中总矿物质浓度为1.80；8.65；8.85 和 4.83 毫克/100 克，体外生物可及性为 16.8；21.4; Cu、Fe、Mn 和 Zn 为 80.3% 和 81.3%，分别。对于 bocaiuva 纸浆，总矿物质浓度为 0.5；4.5; 0.2 和 1.7 毫克/100 克，体外生物可及性为 13.6；15.0; Cu、Fe、Mn 和 Zn 分别为 20.1% 和 57.6%。Pearson 相关系数验证了植酸和抗坏血酸可以影响生物可及性。结果表明巴鲁杏仁和 bocaiuva 果肉是人类有机体可生物获取的营养和矿物质的天然来源。