"参考样本比较方法":一种新的电压电子舌头方法及其在评估新鲜牛奶保质期时的应用
Shiwen Cheng1, Yumei Qin2, Yuezhong Mao1
1School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
Food chemistry
|September 6, 2024
概括
使用电压电子舌头 (V-Et) 的新参考样本比较方法准确评估新鲜牛奶的保质期. 这种V-Et方法显著提高了总体质量,微生物安全性和感官属性的预测准确性.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 生物传感器是一种生物传感器.
背景情况:
- 对食品质量评估而言,保质期评估至关重要.
- 电压度电子舌头 (V-Et) 提供了一种全面的方法来分析食品的整体特性.
- 预测保质期的传统方法可能耗时,可能无法捕捉出质量变化的全部范围.
研究的目的:
- 开发和验证一种新的"参考样本比较方法",使用V-Et来评估新鲜牛奶的保质期.
- 量化牛奶样本的质量差异,基于它们的保质期相对于参考样本.
- 建立一个新的"一对一"牛奶保质期预测模型.
主要方法:
- 使用电压电子舌头 (V-Et) 来生成新鲜牛奶样本的电化学指纹.
- 实施了"参考样本比较方法",以使用差异度 (Dd) 值量化质量差异.
- 开发并比较了一种新的"一对一"保质期模型与传统的"多对一"模型 (SVM,DFA).
主要成果:
- 与SVM相比",一对一"V-Et模型显著提高了总体质量保质期的预测准确性,比SVM提高了11.14%-17.17%,与DFA相比提高了14.86%-44.47%.
- 在微生物安全性方面达到13.57%,在感官质量保质期评估方面达到7.68%的低相对误差.
- 证明了差分度 (Dd) 值在捕获质量变化的有效性.
结论:
- 使用V-Et的"参考样本比较方法"显示出对准确高效的食品保质期评估的巨大潜力.
- 这种方法为预测牛奶质量下降的现有模型提供了更精确的替代方案.
- 该方法可适应评估特定的质量属性,如微生物和感官方面.
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