Negu Abiyot, Zegeye Adamu, Astatkie Tessema
College of Engineering and Technology, Wolkite University, Wolkite, Ethiopia.
School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia.
J Food Sci Technol. 2020 Oct;57(10):3573-3580. doi: 10.1007/s13197-020-04389-3. Epub 2020 Apr 8.
Cookies are one of the best-known quick snack products. However, the main ingredients used in many countries are wheat and a few cereal seeds. This study was conducted to evaluate the nutritional (chemical composition, physical properties, mineral, and phytochemical) and sensory attributes of cookies produced from wheat alone, and three blends of wheat, fenugreek and oat generated after running a d-optimal design mixture experiment (85:5:10%, 70:10:20%, and 55:15:30%), and when baked at three different temperatures (150, 175, and 200 °C). The results indicated that the cookies made from wheat flour supplemented with fenugreek and oat flours had significantly higher protein, fat, crude fiber and energy contents, but lower carbohydrate content. The anti-nutrient contents (phytic acid and condensed tannin) of fenugreek and oat supplemented cookies increased moderately. The mineral content (Ca, Mg, Fe and Zn) of cookies enriched with fenugreek and oat was also improved. The effect of baking temperature on the different response variables varied, and all in all, 175 °C was an acceptable compromise. The study showed that cookies made from 70% wheat, 10% fenugreek, and 20% oat and baked at 175 °C have the best nutritional content and acceptable sensory attributes.
曲奇饼干是最知名的速食产品之一。然而,许多国家制作曲奇饼干的主要原料是小麦和一些谷物种子。本研究旨在评估仅用小麦制作的曲奇饼干,以及在进行d-最优设计混合实验后得到的三种小麦、胡芦巴和燕麦混合配方(85:5:10%、70:10:20%和55:15:30%)制作的曲奇饼干在三种不同温度(150、175和200°C)下烘焙后的营养成分(化学成分、物理性质、矿物质和植物化学物质)和感官特性。结果表明,添加了胡芦巴粉和燕麦粉的小麦粉制作的曲奇饼干蛋白质、脂肪、粗纤维和能量含量显著更高,但碳水化合物含量更低。添加了胡芦巴和燕麦的曲奇饼干中的抗营养成分(植酸和缩合单宁)适度增加。添加了胡芦巴和燕麦的曲奇饼干的矿物质含量(钙、镁、铁和锌)也有所提高。烘焙温度对不同响应变量的影响各不相同,总体而言,175°C是一个可以接受的折衷温度。研究表明,由70%小麦、10%胡芦巴和20%燕麦制成并在175°C下烘焙的曲奇饼干具有最佳的营养成分和可接受的感官特性。