Manufacturing Driving Circular Economy - Proceedings of the 18th Global Conference on Sustainable Manufacturing, October 5-7, 2022, Berlin
Manufacturing Driving Circular Economy - Proceedings of the 18th Global Conference on Sustainable Manufacturing, October 5-7, 2022, Berlin
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制造业推动循环经济 - 第 18 届全球可持续制造会议论文集，2022 年 10 月 5-7 日，柏林
DOI：
10.1007/978-3-031-28839-5_26
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Woolley E
中科院分区：
文献类型：
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作者：
Woolley E
在过去的几年里，一次性塑料包装及其对环境的影响受到了政府、企业和消费者的广泛关注。减少塑料包装废弃物及其相关环境影响的一个选择是转向循环商业模式，提供可重复使用的包装选择，在回收之前使用多次。实施塑料食品包装再利用的一个技术障碍是需要有效清洁包装，并提供清洁保证，以防止产品交叉的可能性。本研究以人造黄油涂油桶为例，探讨了利用紫外荧光成像光学检测食品残留污垢的可行性，从而保证其清洁度。利用MATLAB®应用Otsu阈值法对得到的图像进行处理。结果表明，对于当前设置，最小可检测的污垢量为10-4 g/mm2。评估过程与三磷酸腺苷测定相关，三磷酸腺苷测定是评估食品接触表面清洁度的行业标准过程。所调查的技术的含义克服了一个障碍，塑料食品包装在工业规模上的再利用。快速和可靠的污垢评估每包将巩固企业和消费者的信任在这样一个循环的材料流。已建立的技术有可能形成更广泛的聚合物包装再利用系统的一部分。对光学检测优化，包装设计和自动化适用性的影响将与更广泛的食品供应链考虑一起讨论。
Single use plastic packaging and its environmental impacts have received much attention over the last few years from governments, businesses and consumers. One option to reduce plastic packaging waste and its associated environmental impacts is to shift towards circular business models, supplying reusable packaging options that are used many times before being recycled. One technical barrier to the implementation of plastic food packaging reuse is the need to effectively clean the packs and provide cleaning assurance to prevent the possibility of product crossover. This research investigated the feasibility of using Ultraviolet Fluorescence imaging to optically detect residual food fouling and thus assuring cleanliness in the case example of margarine spread tubs. Processing of obtained images was carried out using MATLAB® applying Otsu’s thresholding method. It was established that for the current setup the minimum detectable quantity of fouling was of the order 10–4 g/mm2. The assessment process was correlated against that of Adenosine Triphosphate assay, an industry-standard process for assessing the cleanliness of food contact surfaces. The implications of the investigated technique overcome one barrier to plastic food packaging reuse on an industrial scale. Fast and reliable fouling evaluation of every pack will underpin business and consumer trust in such a circular material flow. The established technique has the potential to form part of the wider reuse system for polymer packaging. Implications on optical detection optimization, packaging design, and suitability for automation are discussed alongside wider food supply chain considerations.