Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.
Plant Foods Hum Nutr. 2011 Sep;66(3):231-7. doi: 10.1007/s11130-011-0238-0.
Banana flour obtained from unripe banana (Musa acuminata, var. Nanicão) under specific drying conditions was evaluated regarding its chemical composition and nutritional value. Results are expressed in dry weight (dw). The unripe banana flour (UBF) presented a high amount of total dietary fiber (DF) (56.24 g/100 g), which consisted of resistant starch (RS) (48.99 g/100 g), fructans (0.05 g/100 g) and DF without RS or fructans (7.2 g/100 g). The contents of available starch (AS) (27.78 g/100 g) and soluble sugars (1.81 g/100 g) were low. The main phytosterols found were campesterol (4.1 mg/100 g), stigmasterol (2.5 mg/100 g) and β-sitosterol (6.2 mg/100 g). The total polyphenol content was 50.65 mg GAE/100 g. Antioxidant activity, by the FRAP and ORAC methods, was moderated, being 358.67 and 261.00 μmol of Trolox equivalent/100 g, respectively. The content of Zn, Ca and Fe and mineral dialyzability were low. The procedure used to obtain UBF resulted in the recovery of undamaged starch granules and in a low-energy product (597 kJ/100 g).
未成熟香蕉（Musa acuminata，var. Nanicão）在特定干燥条件下获得的香蕉粉，其化学成分和营养价值得到了评估。结果以干重（dw）表示。未成熟香蕉粉（UBF）含有大量的总膳食纤维（DF）（56.24 g/100 g），其中包括抗性淀粉（RS）（48.99 g/100 g）、低聚果糖（0.05 g/100 g）和不含 RS 或低聚果糖的膳食纤维（7.2 g/100 g）。可利用淀粉（AS）（27.78 g/100 g）和可溶性糖（1.81 g/100 g）的含量较低。发现的主要植物甾醇为谷甾醇（4.1 mg/100 g）、豆甾醇（2.5 mg/100 g）和β-谷甾醇（6.2 mg/100 g）。总多酚含量为 50.65 mg GAE/100 g。通过 FRAP 和 ORAC 方法测定的抗氧化活性适中，分别为 358.67 和 261.00 μmol Trolox 当量/100 g。锌、钙和铁的含量以及矿物质可透析性较低。获得 UBF 的过程中回收了未受损的淀粉颗粒，并得到了低能量产品（597 kJ/100 g）。
