Alves Janaína Barreto, Rodrigues Marcy Heli Paiva, Duarte Fabio Andrei, Furlong Eliana Badiale, Christ-Ribeiro Anelise
Laboratório de Micotoxinas e Ciência de Alimentos, Curso de Engenharia de Alimentos, Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil.
Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil.
Plant Foods Hum Nutr. 2023 Mar;78(1):86-92. doi: 10.1007/s11130-022-01014-w. Epub 2022 Nov 5.
Rice bran is an agro-industrial by-product of low added value that can be used to complement human nutritional needs. In this work, the profile of minerals, fatty acids and amino acids in brown rice bran was determined, aiming to evaluate its potential to complement the nutritional needs of different age groups, according to recommendations of regulatory agencies. The brown rice bran was supplied by a rice processing industry located in the south of the state of Rio Grande do Sul. Minerals were quantified using an emission spectrometer; the fatty acid profile was determined by gas chromatography and the amino acids were quantified by high-performance liquid chromatography with fluorescence (HPLC-FL). The main minerals were phosphorus (P), magnesium (Mg), potassium (K) and calcium (Ca) (2,933, 1,029, 211 and 56 mg / 100 g of rice bran). Saturated, monounsaturated and polyunsaturated fatty acids in rice bran were 22.4, 36.2 and 34.5% of lipid content, respectively. The polar, neutral and charged amino acids represented 8.8, 9.3 and 12.8% of the protein content, respectively. The composition of this co-product of rice supply chain is a good alternative to the new demand on plant-based food supplying the recommended daily intake (RDI) of national and international food polices.
米糠是一种附加值较低的农产品加工副产品，可用于补充人类的营养需求。在这项研究中，测定了糙米糠中的矿物质、脂肪酸和氨基酸概况，旨在根据监管机构的建议，评估其满足不同年龄组营养需求的潜力。糙米糠由位于南里奥格兰德州南部的一家大米加工企业提供。使用发射光谱仪对矿物质进行定量；通过气相色谱法测定脂肪酸概况，并用带荧光的高效液相色谱法（HPLC-FL）对氨基酸进行定量。主要矿物质为磷（P）、镁（Mg）、钾（K）和钙（Ca）（每100克米糠中分别为2933、1029、211和56毫克）。米糠中的饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸分别占脂质含量的22.4%、36.2%和34.5%。极性、中性和带电荷的氨基酸分别占蛋白质含量的8.8%、9.3%和12.8%。这种大米供应链副产品的成分是满足国家和国际食品政策推荐每日摄入量（RDI）的植物性食品新需求的良好替代品。
