使用拉曼光谱和多变量校准分析对粉消化的定量预测
Junya Ichinose1, Kenji Oba2, Yuya Arase3
1Laboratory for Comprehensive Bioimaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.
Food chemistry
|October 14, 2023
概括
米粉的消化能力因生长条件而异. 拉曼光谱学有效地预测了特定品种的消化能力,突出了特定品种的分子结构.
科学领域:
- 农业科学 农业科学
- 生物化学 生物化学
- 频谱学是一种光谱学.
背景情况:
- 米粉的消化能力是关键的质量特征.
- 温度和土壤等环境因素会影响粉的消化能力,甚至在同一种米品种内也会产生变化.
- 了解这些变异对于大米质量控制和育种至关重要.
研究的目的:
- 用拉曼散射光谱学预测大米粉的消化性.
- 调查生长环境和种植对大米粉消化能力的影响.
- 开发一个对大米粉消化的预测模型.
主要方法:
- 来自不同品种和生长条件的米样本的净化粉使用拉曼散射光谱分析.
- 量化了生化消化性指数值.
- 进行了部分最小平方 (PLS) 回归分析,以将拉曼光谱与消化性指数值相关联.
主要成果:
- 一个针对单个水品种开发的预测模型实现了高准确度 (R2 = 0.95,RMSEP = 0.43).
- 在模型中将所有品种结合在一起,显著降低了预测准确度 (比预测准确度差两倍多).
- 研究结果表明,影响消化能力的分子结构以特定种类的方式受到生长环境的调节.
结论:
- 拉曼散射光谱是预测米粉消化的可行方法.
- 种植特定的机制调节粉合成和影响消化能力的分子结构.
- 环境因素会导致这些分子结构的波动,影响整体消化能力.
更多相关视频
07:19Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn Zea mays As an Exemplar
Published on: August 6, 2018
19.9K
07:51Combining Raman Imaging and Multivariate Analysis to Visualize Lignin, Cellulose, and Hemicellulose in the Plant Cell Wall
Published on: June 10, 2017
11.9K
相关概念视频
01:20Raman Spectroscopy: Overview
436
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
436
01:26Raman Spectroscopy Instrumentation: Overview
437
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
437