微维:一种具有成本效益的显微镜解决方案,用于酵母细胞检测和葡萄酒价值链中的计数
Ismael Benito-Altamirano1,2, Sergio Moreno1, David M Vaz-Romero1
1Department of Electronic and Biomedical Engineering, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.
Biosensors
|January 24, 2025
概括
一个新的,经济高效的芯片大小的显微镜,MicroVi,准确地检测和计数葡萄酒中的酵母细胞. 这种自动化系统可提供可靠的微生物评估,以改善葡萄酒质量控制.
科学领域:
- 葡萄酒学和葡萄种植
- 微生物学 微生物学
- 光学工程是指光学工程.
背景情况:
- 葡萄酒行业正在寻找在整个生产过程中提高葡萄酒质量的方法.
- 准确的微生物评估对于葡萄酒质量控制至关重要.
研究的目的:
- 推出MicroVi,一种新的,经济高效的,芯片大小的显微镜解决方案,用于检测和计数葡萄酒中的酵母细胞.
- 为了证明MicroVi能够进行与传统光学显微镜相似的微生物分析,但具有较小的足迹和自动化功能.
主要方法:
- 利用计算机视觉管道,包括SIFT特征提取,图像组合用于增强分辨率和扫描,全息重建和Hough转换用于粒子计数.
- 实现了2.19微米的分辨率,使用美国空军的分辨率测试目标1951进行了验证.
- 对*Saccharomyces cerevisiae**的校准细胞计数与标准光学设置相比,获得从0.5到50万细胞/毫升的线性结果.
主要成果:
- 在样本测量方面,MicroVi的性能与传统光学显微镜相提并论.
- 该系统实现了2.19微米的分辨率,能够分辨出细节.
- 对于*Saccharomyces cerevisiae*细胞计数在显著度范围内建立了线性校准.
- 其他微生物的定性分辨率,包括*Brettanomyces bruxellensis*和*Lactobacillus plantarum*,证实了系统可靠性.
结论:
- 微维为葡萄酒行业的微生物评估提供了一种可靠,自动化和具有成本效益的解决方案.
- 芯片大小的显微镜提供了高分辨率和精确的细胞计数,支持葡萄酒质量的提高.
- 该技术的多功能性扩展到识别各种酵母和细菌物种,增强其在酒学中的实用性.
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