Department of Food Science and Nutrition, School of Food Engineering, University of Campinas (UNICAMP), São Paulo, Brazil.
Facultad de Ingeniería, Universidad Tecnológica del Perú, Lima, Peru.
J Sci Food Agric. 2023 Jan 30;103(2):548-559. doi: 10.1002/jsfa.12165. Epub 2022 Aug 26.
Andean purple maize (APM) is an ancient crop widely used as a natural coloring in traditional Peruvian cuisine. However, it has been little explored within the food industry. The present study assessed how APM impacts on techno-functional properties and sensory acceptance of breakfast cereals. Extruded samples formulated with 100, 75, 50, and 25% APM, and complemented with yellow corn grits (YCG), were analyzed for their techno-functional and sensory properties.
Increases in bulk density, as well as reduction in the expantion and porosity were observated for extrudates containing ≥ 50% APM, accompanied by an increase in purple color intensity. Increase in milk absorption index, reduction in milk solubility index and decrease in cereal hardness with increase in APM were also observed. Despite this, APM extented the cereal bowl-life. High sensory scores of overall liking (6) and color (7) were obtained for extruded formulations containing ≥ 50% APM and low values for extrudates with 25% APM. Aroma, flavor, and texture scores did not present significant differences.
APM is an ingredient with the potential to be used to produce breakfast cereals since it improves their techno-functional characteristics and sensory acceptance, at the same time, it leads to the production of healthy, nutritious, and sustainable food. © 2022 Society of Chemical Industry.
安第斯紫色玉米（APM）是一种古老的作物，在传统的秘鲁菜肴中被广泛用作天然着色剂。然而，它在食品工业中还没有得到充分的探索。本研究评估了 APM 对早餐谷物的技术功能特性和感官接受度的影响。用 100%、75%、50%和 25%的 APM 以及黄玉米粗粉（YCG）配制的膨化样品，分析了其技术功能和感官特性。
当 APM 含量≥50%时，膨化物的堆积密度增加，膨化度和孔隙率降低，同时紫色强度增加。随着 APM 的增加，牛奶吸收指数增加，牛奶溶解度指数降低，谷物硬度降低。尽管如此，APM 延长了谷物的保质期。含有≥50%APM 的膨化配方获得了整体喜好（6）和颜色（7）的高分，而含有 25%APM 的膨化物的得分较低。香气、风味和口感评分没有显著差异。
APM 是一种有潜力用于生产早餐谷物的原料，因为它可以改善其技术功能特性和感官接受度，同时生产出健康、营养和可持续的食品。© 2022 化学工业协会。
