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新鲜日果的保质期估计TinyML-传感器
Ramasamy Srinivasagan1, Maged Mohammed2,3, Ali Alzahrani1
1Department of Computer Engineering, College of Computer Sciences and Information Technology, King Faisal University, Al Hofuf 36362, Saudi Arabia.
Sensors (Basel, Switzerland)
|August 26, 2023
概括
这项研究使用机器学习和低成本传感器来预测新鲜日期的保质期. 修改大气的包装和在5°C的真空密封显著延长了保质期,为生产商提供了具有成本效益的解决方案.
科学领域:
- 农业科学 农业科学
- 食品科学 食品科学 食品科学
- 数据科学数据科学数据科学
背景情况:
- 新鲜枣的保质期有限,导致坏和经济损失.
- 准确的保质期估计对于生产商,供应商和消费者来说至关重要.
- 修改大气包装 (MAP) 可以通过减缓成熟延长新鲜枣的保质期.
研究的目的:
- 应用快速,经济有效,非破坏性机器学习 (ML) 技术来预测新鲜日期的保质期.
- 为了优化储存条件,最大限度地提高新鲜枣的保质期.
- 为了能够及时消费,并保持枣的营养价值.
主要方法:
- 使用可见近红外 (VisNIR) 光谱传感器来捕获内部物理化学属性.
- 采用TinyML兼容的回归模型来预测水果发育阶段和估计保质期.
- 在真空下存储日期和MAP (20%CO2,N平衡) 在5°C和24°C,监测属性每周.
主要成果:
- 在5°C的真空包装将保质期延长到53天;在5°C的MAP将保质期延长到44天.
- 在24°C时,真空包装的保质期为44天,MAP的保质期为23天.
- 从Khalal过渡到Rutab阶段标志着保质期开始减少.
结论:
- 机器学习和VisNIR传感器提供了一种非破坏性的方法,用于实时估计新鲜日期的保质期.
- 低温储存 (5°C) 显著提高了真空和MAP在延长日期保质期方面的有效性.
- 边缘冲动方便部署TinyML模型用于实用,低成本的保质期预测应用程序.
相关概念视频
Principles of Food Preservation
Food spoilage results from microbial growth, enzymatic activity, and environmental factors that gradually degrade the sensory, nutritional, and safety qualities of food. Preservation techniques aim to slow or halt these processes to extend shelf life and maintain product quality.A key concept in food microbiology is the microbial growth curve, which includes four phases: lag, exponential (log), stationary, and death. During the lag phase, bacteria adjust to their environment without significant...
Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...

