In this study, the protein quality of dehulled-defatted African mesquite bean (Prosopis africana) flour and protein isolates obtained using micellization and isoelectric precipitation methods were investigated. The dominant amino acids in the dehulled-defatted Prosopis africana flour and protein isolates included aspartic acid, glutamic acid, leucine and arginine, while the first, second and third limiting amino acids were methionine, threonine and valine/tryptophan, respectively. Amino acid profiles and scores, classifications and ratios, predicted protein efficiency ratios (1.79–2.89), biological (12.61–37.97%) and net protein (15.77–50.84%) values, essential amino acid (63.94–87.02%) and nutritional (23.33–70.78%) indexes showed that the dehulled-defatted P. africana flour and its protein isolates were of high protein quality and could be employed in complementing cereal-based and other similar foods whose proteins are deficient in lysine. Isoelectric precipitation method yielded protein with better nutritional quality compared to the micellization method. P. africana flour and protein isolates could therefore be exploited as protein sources in food formulation for tackling protein malnutrition in Africa.

在这项研究中，研究了脱壳脱脂的非洲豆科植物豆（Prosopis africana）面粉的蛋白质质量以及使用胶束化和等电沉淀法获得的蛋白质分离物。脱脂脱脂非洲象球藻面粉和分离蛋白中的主要氨基酸包括天冬氨酸，谷氨酸，亮氨酸和精氨酸，而第一个，第二个和第三个限制性氨基酸分别是蛋氨酸，苏氨酸和缬氨酸/色氨酸。氨基酸概况和得分，分类和比率，预测的蛋白质效率比（1.79–2.89），生物学的（12.61–37.97％）和净蛋白质（15.77–50.84％）的值，必需氨基酸（63.94–87.02％）和营养的（ 23.33–70.78％）指标显示，脱壳脱脂P。Africana面粉及其分离蛋白的蛋白质质量很高，可用于补充蛋白质中赖氨酸不足的谷类食品和其他类似食品。与胶束化方法相比，等电沉淀法产生的蛋白质具有更好的营养品质。P。AFRICANA面粉和分离蛋白可以因此食品配方被利用作为蛋白质来源为非洲应对蛋白质营养不良。