在食品加工链中成功应用NIR光谱和NIR成像技术
Giacomo Squeo1, José Manuel Amigo2,3
1Department of Soil Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/A, 70126 Bari, Italy.
Foods (Basel, Switzerland)
|August 26, 2023
概括
近红外 (NIR) 光谱,曾经被忽视,现在是一个至关重要的工具. 本研究探讨了其先进的应用和在现代科学分析中日益重要的意义.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
- 材料科学 材料科学 材料科学
背景情况:
- 近红外 (NIR) 光谱技术在历史上未得到充分利用.
- 技术的进步重新激发了对NIR技术的兴趣.
- 对于非破坏性分析,NIR提供了独特的优势.
研究的目的:
- 突出NIR光谱学的复兴和不断变化的作用.
- 展示NIR在各种科学领域的新型应用.
- 强调NIR在未来研发方面的潜力.
主要方法:
- 审查历史数据和NIR仪器仪表技术的技术进步.
- 分析最近的研究出版物,展示创新的NIR应用.
- 与其他光谱学方法对NIR进行比较评估.
主要成果:
- 尼尔光谱已经显示出显著的增长和多样化.
- 新的应用涵盖了制药,食品科学和环境监测.
- 技术进步提高了敏感性和数据处理.
结论:
- 尼尔射线光谱是一种强大而通用的分析技术.
- 它的非破坏性和广泛适用性使其变得不可或缺.
- 持续的创新有望进一步扩大NIR的科学影响.
相关概念视频
01:11Applications of IR Spectroscopy: Overview
783
The non-destructive nature and ability to provide valuable chemical information make IR spectroscopy a versatile technique with broad applications in various scientific and industrial fields. IR spectroscopy is commonly used to identify and characterize organic and inorganic compounds. It provides information about the functional groups present in a molecule and the bonding between atoms. This helps in the structural elucidation of compounds during organic synthesis, pharmaceutical research,...
783
01:25Applications Of NMR In Biology
3.7K
Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
3.7K
01:09Infrared (IR) Spectroscopy: Overview
1.9K
When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...
Different compounds display unique properties due to their...
1.9K
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
01:25IR Spectrometers
1.2K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.2K
01:03IR Frequency Region: Fingerprint Region
937
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
937