低成本的机器学习集成光学光谱仪用于非破坏性颜色和保质期分析:对切片面包的研究
Deblu Sahu1, Sampurna Ghosh1, Sivaraman Jayaraman1
1Department of Biotechnology & Medical Engineering, National Institute of Technology Rourkela, Odisha 769008, India.
Food chemistry
|July 17, 2025
概括
这项研究开发了一种低成本的,支持机器学习的光谱仪,用于检测切片面包的腐烂. 该系统使用颜色和光谱数据准确识别腐烂的面包,增强食品安全和保质期监测.
科学领域:
- 食品科学 食品科学 食品科学
- 频谱学是一种光谱学.
- 机器学习 机器学习
背景情况:
- 早期检测易腐烂食品中的腐烂对安全至关重要.
- 物理颜色和光谱特征是食物降解的关键指标.
- 对于高效的食品质量评估,需要使用非破坏性方法.
研究的目的:
- 开发一个具有成本效益的,支持机器学习的光谱仪,用于非破坏性检测切片面包中的腐烂.
- 为了将颜色和光谱数据与微生物破坏指标 (总板数) 相关联.
- 评估机器学习模型在分类腐烂面包样本中的性能.
主要方法:
- 开发了一个机器学习 (ML) 模型,包括一个人工神经网络,以预测RGB值的光谱数据.
- 使用总板数 (TPC),色度测量 (L*a*b*值) 和光谱测量 (340-750 nm) 来评估保质期.
- 梯度提升树和支向量机 (SVM) 用于样本分类.
主要成果:
- 在第8天和第10天,总血小板数显著增加,证实了破坏.
- 颜色分析显示,4日后L*值显著下降,8日后a*和b*值发生变化.
- 频谱数据直到第4天保持稳定,然后从第6天开始下降,特别是在525-619nm之间.
- 支持矢量机 (SVM) 在分类破坏的样本中获得了最高的F1分数95.84%.
结论:
- 将低成本的光学技术与机器学习模型相结合,为非破坏性食品损坏检测提供了一个有希望的方法.
- 开发的支持ML的光谱仪可以有效地监测面包的腐烂,并评估保质期.
- 这项技术在改善食品工业的食品安全和质量控制方面具有重大潜力.
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