Abstract The in vitro gastrointestinal simulation allows estimating the bioaccessible fraction (BF), thus indicating the real nutritional food value. Most studies that use in vitro tests assess the antioxidant capacity of foods, however, the bioaccessibility of elements is still little explored, mainly in functional foods, as the green banana flour (GB). Therefore, this paper describes the total concentration and BF of Mg, Ca, Zn, Mn, Cu and Fe in different brands of GB flours. The chemical composition and phytic acid (PA) concentration were also determined. In general, the highest concentrations (mg 100 g−1) of the total mineral were obtained for Mg (99.2–161) > Ca (27.9–74.7) > Fe (2.6–11). The highest gastrointestinal BF (%) were obtained for Mg (84–101), Mn (80–85), Cu (70–87) and Zn (76–92). The elements that were directly affected by the presence of PA were Ca and Fe, with BF ranging from 24 to 34 % and 21–35 %, respectively, most likely due to the formation of insoluble complexes in the conditions of the gastrointestinal tract. According to achieved results, based on total concentration, proximate composition and bioacessibility of elements, GB can provide an adequate intake of Mg, Cu, Fe and proteins, making its inclusion in the daily diet of great relevance.

中文翻译：

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绿色香蕉粉中常量矿物质和微量元素的体外生物可及性评估

摘要 体外胃肠模拟允许估计生物可及部分 (BF)，从而表明真正的营养食品价值。大多数使用体外测试的研究评估了食物的抗氧化能力，然而，元素的生物可及性仍然很少被探索，主要是在功能性食品中，如绿色香蕉粉 (GB)。因此，本文描述了不同品牌国标面粉中 Mg、Ca、Zn、Mn、Cu 和 Fe 的总浓度和 BF。还测定了化学成分和植酸 (PA) 浓度。一般来说，镁 (99.2–161) > Ca (27.9–74.7) > Fe (2.6–11) 的总矿物浓度最高 (mg 100 g-1)。Mg (84–101)、Mn (80–85)、Cu (70–87) 和 Zn (76–92) 的胃肠道 BF (%) 最高。受 PA 存在直接影响的元素是 Ca 和 Fe，BF 的范围分别为 24% 至 34% 和 21% 至 35%，这很可能是由于在胃肠道条件下形成了不溶性复合物。根据取得的成果，基于元素的总浓度、近似组成和生物可及性，GB可以提供足够的镁、铜、铁和蛋白质的摄入量，使其在日常饮食中具有重要意义。