Abedin Md Jaynal, Abdullah Abu Tareq Mohammad, Satter Mohammed Abdus, Farzana Tasnim
Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, 1205, Bangladesh.
Heliyon. 2022 Oct 20;8(10):e11186. doi: 10.1016/j.heliyon.2022.e11186. eCollection 2022 Oct.
The nutritional and phytochemical content of foxtail millet () makes it a viable food grain. In this study, we looked at foxtail millet in Bangladesh and analyzed its nutritional value, functional and physical characteristics. In addition, methanol, ethanol, and acetone: water: acetic acid (70: 29.50: 0.50) extracts of foxtail millet flour (FMF) were analyzed for their antioxidant properties (total phenolic and flavonoid content, total antioxidant capacity, ferric reducing antioxidant power (FRAP) assay, and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity). According to this study, foxtail millet has favorable physiological and functional properties. FMF had protein at 11.65 ± 0.45 g/100 g, fat at 3.48 ± 0.04 g/100 g, carbohydrates at 75.33 ± 0.53 g/100 g, and crude fiber at 2.21 ± 0.03 g/100 g. Calcium was found at 47 ± 0.48 mg/100 g, iron at 4.59 ± 0.14 mg/100 g, potassium at 393 ± 15.87, sodium at 27.4 ± 1.21, magnesium at 45.40 ± 2.22, manganese at 0.71 ± 0.02, copper at 0.58 ± 0.04 and zinc at 2.30 ± 0.18 mg/100 g. The total flavonoid content (TFC) of the methanolic extract (68.26 ± 1.51 mg quercetin equivalents (QE)/100 g) was significantly (p < 0.05) higher than the extract of acetone: water: acetic acid. Total antioxidant capacity (TAC) (169.40 ± 3.45 mg ascorbic acid equivalents (AAE)/100 g) and total phenolic content (TPC) (51.35 ± 1.35 mg gallic acid equivalents (GAE)/100 g) of the methanolic extracts were significantly (p < 0.05) higher than others. The ascending order of DPPH free radical scavenging activity of FMF extract is as follows: acetone: acetic acid: water < ethanol < methanol. In the ferric reducing antioxidant power (FRAP) test, the reducing power of FMF extracts increased with the rise in sample concentration. Foxtail millet has potential as a functional food that could influence rural residents' diets and health.
黍的营养和植物化学成分使其成为一种可行的粮食作物。在本研究中,我们观察了孟加拉国的黍,并分析了其营养价值、功能特性和物理特性。此外,还对黍米粉(FMF)的甲醇、乙醇以及丙酮:水:乙酸(70:29.50:0.50)提取物的抗氧化特性(总酚和黄酮含量、总抗氧化能力、铁还原抗氧化能力(FRAP)测定以及2,2-二苯基-1-苦基肼(DPPH)自由基清除活性)进行了分析。根据本研究,黍具有良好的生理和功能特性。FMF的蛋白质含量为11.65±0.45 g/100 g,脂肪含量为3.48±0.04 g/100 g,碳水化合物含量为75.33±0.53 g/100 g,粗纤维含量为2.21±0.03 g/100 g。钙含量为47±0.48 mg/100 g,铁含量为4.59±0.14 mg/100 g,钾含量为393±15.87,钠含量为27.4±1.21,镁含量为45.40±2.22,锰含量为0.71±0.02,铜含量为0.58±0.04,锌含量为2.30±0.18 mg/100 g。甲醇提取物的总黄酮含量(TFC)(68.26±1.51 mg槲皮素当量(QE)/100 g)显著(p<0.05)高于丙酮:水:乙酸提取物。甲醇提取物的总抗氧化能力(TAC)(169.40±3.45 mg抗坏血酸当量(AAE)/100 g)和总酚含量(TPC)(51.35±1.35 mg没食子酸当量(GAE)/100 g)显著(p<0.05)高于其他提取物。FMF提取物的DPPH自由基清除活性的升序如下:丙酮:乙酸:水<乙醇<甲醇。在铁还原抗氧化能力(FRAP)测试中,FMF提取物的还原能力随样品浓度的升高而增加。黍作为一种功能性食品具有潜力,可能会影响农村居民的饮食和健康。