人造肉脂肪组织3D打印轨迹规划算法

目的:针对基于植物原料的人造肉脂肪组织部分3D打印成型质量不稳定,打印效率低等问题,研究并改进与食品材料相匹配的智能3D打印轨迹运动算法,减少打印路径中的堆积与拐角.方法:提出一种适配于人造肉脂肪组织原料特点的轨迹规划方法.采用贝叶斯算法将切片后的模型复杂截面层划分为若干简单多边形子分区轮廓,并在此基础上使用一种经改进的近邻法确定各轮廓的最优运动起始点,同时将遗传算法融入蚁群算法应用于求解分区轮廓最优打印路径中,最后采用改进的zigzag扫描算法对轮廓内部进行填充.结果:与Cura和Prusa的轨迹规划方法相比,研究所建立模型的打印时间与运动路径长度均有所减少.结论:研究所提出的针对人造肉脂肪组织部分3D打印成型的轨迹规划算法具有较高的可行性与有效性.     

Texture‐modified 3D printed dark chocolate: Sensory evaluation and consumer perception study

This study aimed to assess the preferences and perceptions of texture‐modified three‐dimensional (3D) printed chocolate through three measures: two tasting tests and one survey. In the first test, 30 semitrained panelists ranked their overall preference from among the three samples of chocolate printed in a honeycomb pattern with infill percentages (IPs) of 25, 50, and 100%. The panelists ranked the samples based on appearance and hardness. In the second test, the same panelists nominated one preference between a 3D printed sample (100% IP) and a cast commercial chocolate sample. Friedman test indicated that there was no significant difference in overall preferences for hardness although the panelists significantly preferred the appearance of samples with 25 and 50% over the 100% infill. Furthermore, there was no significant difference in preference between the cast and 100% infill samples. The texture data of the chocolate samples showed that a higher force was required to break the chocolate samples as the IP increased from 25% (20.4 ± 1.1 N) to 100% (54.4 ± 1.5 N). Also, the 3D printed chocolate (printed in 100% IP) was found to be less hard than that of casted chocolate. In the survey of consumer perceptions, a total of 244 participated and assessed the samples for their intricate design and novel technology concept through a questionnaire. While there was a general awareness of 3D printing technology among these participants, many were impressed with the application of 3D printing to chocolate, as this was the first time they had seen this. The results obtained from the sensory tests and consumer survey provided a useful insight into consumers' perception of 3D food printing and the 3D products design. This awareness will be beneficial to promote this technology in the food industry.     

食品及软性材料3D打印技术的研究与应用进展

3D打印技术是当前的热门科技,食品及软性材料3D打印技术也取得了不断地进步与发展。总结了3D打印技术的原理、分类及3D打印机的构成,综述讨论了食品及软性材料3D打印技术的研究现状及应用中需要克服的技术难点,对未来食品及软性材料3D打印技术的前景作出了展望。     

从专利申请看3D打印技术在食品工业中的应用进展

从专利申请的角度,对国内外3D打印技术在食品领域的专利申请趋势进行了分析,重点分析了中国食品领域3D打印技术专利申请的申请人分布、法律状态、应用方向、发展路线等,探讨了3D打印技术在食品领域的发展趋势和开发应用情况,总结3D打印技术在食品加工中存在的问题和面临的挑战,为中国3D打印技术在食品领域的发展提供参考。     

食品3D打印的发展及挑战

随着3D打印技术的快速发展,其应用领域从传统模具制造领域不断扩展到建筑、工艺设计和医疗整形等领域。其成本的不断降低得益于Arduino开源硬件技术的发展。在食品行业,3D食品打印将对食物供应短缺、食物个性化需求、人类生活方式以及太空旅行等问题产生深远影响。3D打印食品的材料限制、口感、安全性、成本以及大众心理障碍等是目前食品3D打印所面临的挑战。     

一种气动活塞式3D巧克力打印头设计

随着3D打印技术的发展,其应用领域从传统的工业设计逐渐扩展到建筑、医疗、食品等行业。本文以食品行业中的3D巧克力打印为前提,概述了3D巧克力打印的现状,根据目前市面上常见的3D巧克力打印头结构的特点,详细介绍了一种基于气动活塞式结构的3D巧克力打印头的设计,并对该打印头的实际打印效果进行验证,总结了该结构的打印头的优缺点。     

食品3D打印中的食品材料特性与应用研究进展

食品材料是食品3D打印的关键因素。文章总结了目前在食品3D打印中常用食品材料(蛋白质、淀粉、水凝胶、脂肪)的特点,分析了不同材料组合对成形性能的影响,对不易打印材料如何提高印刷效果给予了一定的建议,指出了目前食品3D打印中食品材料发展面临的技术瓶颈,并对未来食品3D打印技术的发展趋势进行了展望。     

3D食品打印技术及影响因素的研究进展

3D打印技术利用\     

谷物基原料3D打印的研究进展

文章介绍了适合谷物基3D打印的主要工艺、原理和设备,总结了谷物基原料的打印特性,综述了谷物原料在3D打印中的应用和影响打印效果的主要因素,展望了谷物基食品作为3D打印原料的前景和挑战.     

基于肉类原料的3D打印技术研究进展

食品3D打印技术是一种新兴的数字化生产技术,通过3D打印可以设计并生产营养价值更高、感官品质更佳的新型食品.肉类是人类饮食结构中很重要的一部分,为人类提供各种营养素.基于肉类加工的3D打印技术拥有很大的市场需求,具有很好的开发价值.本文简单介绍了食品3D打印机的结构和原理,详细论述了肉糜和培养肉的3D打印工艺,并介绍了...     

基于可食用材料的3D打印技术应用进展

可食用材料范围的延伸加快了3D打印技术的发展。但与工程材料相比,针对可食用材料的3D打印技术仍然面临很多的挑战。文章介绍了目前较为成熟的3D打印技术和其应用领域,并阐述了食品3D打印机的结构构成,以及可食用材料3D打印的国内外研究进展。总结分析了可食用材料应用于3D打印中存在的问题,并展望了未来会有更广泛的应用领域,将对3D打印技术发展产生深远的影响。     

Application and challenges of 3D food printing technology in manned spaceflight: a review

Three-dimensional (3D) food printing is a digital food engineering method that has a remarkable application potential in long-term manned spaceflight. Extrusion-based 3D food printing, among the available 3D food printing techniques utilised in the food industry, is one of the most suitable printing methods for manned spaceflight. Extrusion-based 3D food printing could suffice most of the energy and personalised nutritional requirements of astronauts during long-term stay in space by utilising fruits, vegetables, meat products, and nutrients as printing materials. However, 3D food printing in manned spaceflight is still limited by technologies and costs such as printing materials, microgravity, post-processability of food, and engineering transportation under the existing technical conditions. Therefore, this article reviews the 3D food printing and manned spaceflight technologies that are currently available and discusses the challenges involved in 3D food printing in manned spaceflight, thus providing a theoretical basis for future 3D food printing for space missions.     

马铃薯淀粉对豌豆蛋白3D打印材料结构及特性的影响

为开发以豌豆蛋白为基料的3D食品打印材料,探讨马铃薯淀粉对豌豆蛋白在3D打印可行性方面的作用规律及机理,通过SEM、XRD、FT-IR、DSC等方法,对豌豆蛋白3D打印材料的结构和性能进行分析。结果表明,马铃薯淀粉的添加对豌豆蛋白3D打印材料颗粒的结构、性质和3D打印可行性都有显著影响,改变了3D打印物的表面光滑度。可打印的3D打印材料配方豌豆蛋白含量范围为50%~75%。其中最佳的3D打印材料配方豌豆蛋白含量为50%,3D打印物成型效果好,造型逼真,表面光滑度高。此研究为3D食品打印材料的发展提供了参考,为实际生产豌豆蛋白3D打印材料提供了理论指导、工艺参考和技术支持,具有重大理论研究价值和实际应用意义。     

基于食品3D打印技术的食品原料研究及应用

3D打印技术作为一项新兴的智能食品加工技术,已经被广泛应用在食品、材料、航天、汽车、建筑模型等多个领域.食品3D打印技术又被称为一项“增材制造”技术,具备方便、灵活、高精度等优点,可以实现食品外观、颜色、质地、味道和配方的个性化定制.本文从食品3D打印原理、3D食品材料和应用等方面进行综述,以期为食品3D打印材料的开发...     

Electrospinning of PCL/CEFUROXIM® fibrous scaffolds on 3D printed collectors

Abstract

In this paper, the effect of different collector geometry on the PCL scaffold architecture and cell viability was investigated. PCL scaffolds with antibiotic Cefuroxim^®, 15%wt. and 20%wt., were electrospun and characterized by ATR-FTIR, while thermal stability were observed by DSC and TG. PCL/15%CFU^® scaffolds were electrospun on six 3D printed collectors, three ribbed and three mesh geometries, to produce the most favourable structure for cells adhesion and proliferation. SEM study and MTT assay revealed that collectors with the widest slot in both ribbed and mesh geometries exhibited the most favourable structure to enhance cells adhesion. In general, cells spreading on the surface and cells viability proved to be better for the ribbed collectors. The study showed that by controlling the collector geometry and the scaffold three-dimensional structure, it is possible to control cell attachment and differentiation and, consequently, to adjust them for the special tissue demands in the regeneration process.     

Recent development in 3D food printing

Robots and software have been significantly improving our daily lives by rendering us much convenience. And 3D printing is a typical example, for it is going to usher in a new era of localized manufacturing that is actually based on digital fabrication by layer-by-layer deposition in three-dimensional space. In terms of food industry, the revolution that three-dimensional printing technologies is bringing to food manufacturing is convenience of low-cost customized fabrication and even precise nutrition control. This paper is aimed to give a brief introduction of recent development of food printing and material property of food ingredients that can be used to design the 3D food matrix and investigate the relationship between process parameters and resulting printed food properties in order to establish a food manufacturing process with this new food production approach.     

3D printing technology: The new era for food customization and elaboration

BackgroundDigitalizing food using 3-Dimensional (3D) printing is an incipient sector that has a great potential of producing customized food with complex geometries, tailored texture and nutritional content. Yet, its application is still limited and the process utility is under the investigation of many researchers.Scope and approachThe main objective of this review was to analyze and compare published articles pertaining 3D food printing to ensure how to reach compatibility between the huge varieties of food ingredients and their corresponding best printing parameters. Different from previously published reviews in the same journal by Lipton et al. (2015) and Liu et al. (2017), this review focuses in depth on optimizing extrusion based food printing which supports the widest array of food and maintains numerous shapes and textures. The benefits and limitations of 3D food printing were critically reviewed from a different perspective while providing ample mechanisms to overcome those barriers.Key findings and conclusionsFour main obstacles hamper the printing process: ordinance and guidelines, food shelf life, ingredients restrictions and post processing. Unity and integrity between material properties and process parameters is the key for a best end product. For each group, specific criteria should be monitored: rheological, textural, physiochemical and sensorial properties of the material its self in accordance with the process parameters of nozzle diameter, nozzle height, printing speeds and temperature of printing. It is hoped that this paper will unlock further research on investigating a wider range of food printing ingredients and their influence on customer acceptability.     

蜂蜡-水凝胶复合型荔枝材料的3D打印工艺

以荔枝干、食品胶(κ-卡拉胶和黄原胶)、蜂蜡和火龙果皮为原料,利用3D打印机、流变仪和扫描电镜探讨不同配比对复合型荔枝材料流变学性质与打印成型的影响,并对其微观结构进行了研究。当添加卡拉胶:黄原胶比例为1:1,蜂蜡添加量8.0 g,火龙果皮粉添加量2.0 g时,复合型荔枝油墨材料的稳定化时间为143.5 s,屈服应力为187.55 Pa,K值为1.72×105 Pa·sn,n值为0.22,制备的材料具备较好的剪切稀化性能、热可逆性和机械性能。打印出的产品精度较高,线条细腻,可叠放60层。材料的微观结构以κ-卡拉胶为骨架的网络状,黄原胶、荔枝果肉和果胶等依附在骨架上,蜂蜡以颗粒(直径10μm)附着在骨架的表层,在打印过程中与食品胶共同作用以影响材料的打印成型性。     

纳米纤维素基3D打印材料的研究进展

3D打印是一种以数字模型文件作为基础的快速成型技术,采用可粘合材料,通过逐层打印的方式可构建物体。本文介绍了纳米纤维素的特点与纳米纤维素基3D打印材料的现状,重点总结了纳米纤维素基3D打印材料在不同领域的应用,如生物医药、食品包装、柔性导电材料等,并对纳米纤维素基3D打印材料的发展进行了展望。     

An exploratory consumer study of 3D printed food perception in a real-life military setting

3D printing has the potential to produce on-demand food tailored to individuals’ needs and preferences. The present study explored 3D printed food acceptance in a real-life military setting. Over a period of 4 weeks, soldiers consumed and evaluated multiple recovery snack bars. In week 1, participants received a benchmark bar that was created with conventional manufacturing processes. In week 2 to 4 participants received a 3D printed snack bar with increasing customisation options: choice of texture (soft or crunchy) in week 2; choice of texture and taste (sweet or savoury) in week 3; and choice of texture, taste and ingredients (4 types of dough, 13 types of filling) in week 4. Attitudes towards 3D food printing and potential drivers of 3D printed food acceptance were assessed in weeks 1 and 4 before and after repeated consumption of the snack bars.After repeated consumption participants judged 3D printed food to be significantly better as compared to before consumption (t = 2.86, p = 0.015). Food neophobia, food technology neophobia and food choice motives did not change during the experiment (all p > 0.05). The benchmark bar was liked better than the 3D printed bars. However, among the 3D printed bars, mean scores on overall liking, and liking of taste and texture were highest for the version that was customized most (week 4). Our findings illustrate that consumer empowerment, desired degree of personalisation, state of development and appropriateness of 3D food printing technology all play a role in 3D printed food acceptance.