使用光纤光谱仪快速检测loquats的水分含量和新鲜度
Qinglong Meng1,2, Shunan Feng1, Tao Tan1
1School of Food Science and Engineering Guiyang University Guiyang China.
Food science & nutrition
|July 26, 2024
概括
光纤光谱学提供了一种快速,非破坏性的方法来检测loquats中的水分含量和新鲜度. 这项技术克服了传统破坏性测试的局限性,确保了水果的质量和经济效率.
科学领域:
- 农业科学 农业科学
- 频谱学是一种光谱学.
- 食品科学 食品科学 食品科学
背景情况:
- 精确检测水分含量 (MC) 和鱼的新鲜度对于质量和经济效率至关重要.
- 传统的方法往往具有破坏性和耗时性,阻碍了快速评估.
- 需要使用非破坏性技术来评估鱼的质量.
研究的目的:
- 调查使用光纤光谱学的可行性,以快速,非破坏性地检测loquatMC和新鲜度.
- 开发和比较MC的预测模型和新鲜度的歧视模型.
主要方法:
- 采用光纤光谱 (200-1000nm) 来获取数据.
- 用标准正常变异 (SNV) 方法预处理了 Spectra.
- 使用竞争性自适应权衡采样 (CARS) 和随机青算法选择有效的波长.
- 湿度含量预测模型包括PLSR,MLR,ELM和BPNN.
- 使用k-NN,SVM和PLSDA的新鲜度歧视模型.
主要成果:
- 卡斯-PLSR模型在MC预测方面表现良好 (R2P = 0.84,RPD = 2.51).
- CARS-SVM模型在校准和预测集中实现了优异的新鲜度水平区分,准确度为100%.
- 选择有效波长显著改善了模型性能.
结论:
- 光纤光谱是一种高效的技术,用于快速,非破坏性地评估loquat的水分含量和新鲜度.
- 这种方法为水果行业的传统破坏性方法提供了可行的替代方案.
- 开发的模型为实时质量控制提供了基础.
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