Study on 3D printing of orange concentrate and material characteristics
Study on 3D printing of orange concentrate and material characteristics
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DOI：
10.1111/jfpe.12689
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发表时间：
2018-08-01
影响因子：
3
通讯作者：
Yang, Chaohui
中科院分区：
文献类型：
--
作者：
Azam, S. M. Roknul;Zhang, Min;Yang, Chaohui
三维（3D）食品打印是一项很有前途的技术，吸引了学术界和工业界的关注，因为它被认为是复杂和个性化食品设计制造中的一个重大范式转变，可以选择改变营养成分。在这项研究中，对橙色皮革（OL）的3D打印（3DP）性能进行了表征，同时对以橙色浓缩物（OC）为原料，添加不同比例（15%、20%、25%和30%）的小麦淀粉（WS）进行了比较评估。流变数据表明，OC-WS 混合物蒸汽蒸煮 16 +/- 0.5 分钟会表现出剪切稀化行为，这对于食品混合物的挤出型 3DP 至关重要。 5% WS 与 OC 的变化显着增加了屈服应力 (tau(0)) 和粘度 (n)。核磁共振 (NMR) 研究表明，对于含有 30% WS 的样品，最大量的部分固定水转化为结合水，并具有最高的机械强度，但挤出性较差。质构分析表明，在四个样品中，含有 20% WS 的样品提供了最佳的咀嚼特性。为了优化打印条件并测试 OL 3DP 工艺效果的再现性，对喷嘴直径 (d(n))、喷嘴尖端打印床高度 (h(c))、挤出速率 (v(d)) 和喷嘴移动速度 (v(n)) 进行了实验测试。结果发现，在 d(n)=1.5 mm、h(c) = 1.54 +/- 0.02 mm、v(d) = 245 mm(3)/s 和 v(n) = 35 mm/s 时，打印物体保持一致，实现最佳分辨率和最大保真度。
Three-dimensional (3D) food printing is a promising technology that attracted the attention of both academia and industry since it is considered as a major paradigm shift in the fabrication of intricate and personalized food design with the choices of altering the nutritional profile. In this study, 3D printing (3DP) properties of orange leather (OL) were characterized and simultaneously comparative assessment was carried out while making it from orange concentrate (OC) by adding varying proportions (15, 20, 25. and 30%) of wheat starch (WS). Rheological data suggest that steam cooking of OC-WS mixture for 16 +/- 0.5 min exhibit shear-thinning behavior, which is essential for extrusion-type 3DP of food mixtures. A variation of 5% WS with OC significantly increase the yield stress (tau(0)) and viscosity (n). Nuclear magnetic resonance (NMR) study revealed that the maximum amount of partially immobilized water was converted to bound water and developed the highest mechanical strength but poor extrudability for 30% WS containing sample. Texture profile analysis suggests that the 20% WS containing samples provide the best mastication properties among the four samples. To optimize the printing conditions and test the reproducibility of OL 3DP process effects of nozzle diameter (d(n)), nozzle tip-print bed height (h(c)), extrusion rate (v(d)), and nozzle moving speed (v(n)) were tested experimentally. It was found that, at d(n)=1.5 mm, h(c) = 1.54 +/- 0.02 mm, v(d) = 245 mm(3)/s, and v(n) = 35 mm/s the printed objects remain consistent, achieve the best resolution and maximum fidelity.