Investigations into the use of handheld near-infrared spectrometer and novel semi-automated data analysis for the determination of protein content in different cultivars of Panicum miliaceum L.

Talanta ◽  
2019 ◽  
Vol 205 ◽  
pp. 120115 ◽  
Author(s):  
Verena Wiedemair ◽  
Dominik Mair ◽  
Carina Held ◽  
Christian W. Huck
Keyword(s):  
Data Analysis ◽  
Protein Content ◽  
Near Infrared ◽  
Panicum Miliaceum ◽  
Infrared Spectrometer ◽  
Automated Data Analysis ◽  
Near Infrared Spectrometer

scholarly journals Investigations into the Performance of a Novel Pocket-Sized Near-Infrared Spectrometer for Cheese Analysis

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 428 ◽  
Author(s):  
Verena Wiedemair ◽  
Dominik Langore ◽  
Roman Garsleitner ◽  
Klaus Dillinger ◽  
Christian Huck
Keyword(s):  
Data Analysis ◽  
Partial Least Squares Regression ◽  
Near Infrared ◽  
Coefficient Of Determination ◽  
Least Squares Regression ◽  
Analysis Software ◽  
Infrared Spectrometer ◽  
Automated Tools ◽  
Near Infrared Spectrometer ◽  
Data Analysis Software

The performance of a newly developed pocket-sized near-infrared (NIR) spectrometer was investigated by analysing 46 cheese samples for their water and fat content, and comparing results with a benchtop NIR device. Additionally, the automated data analysis of the pocket-sized spectrometer and its cloud-based data analysis software, designed for laypeople, was put to the test by comparing performances to a highly sophisticated multivariate data analysis software. All developed partial least squares regression (PLS-R) models yield a coefficient of determination (R2) of over 0.9, indicating high correlation between spectra and reference data for both spectrometers and all data analysis routes taken. In general, the analysis of grated cheese yields better results than whole pieces of cheese. Additionally, the ratios of performance to deviation (RPDs) and standard errors of prediction (SEPs) suggest that the performance of the pocket-sized spectrometer is comparable to the benchtop device. Small improvements are observable, when using sophisticated data analysis software, instead of automated tools.

Rapid and Nondestructive Freshness Determination of Tilapia Fillets by a Portable Near-Infrared Spectrometer Combined with Chemometrics Methods

2020 ◽  
Vol 13 (10) ◽  
pp. 1918-1928
Author(s):  
Hai-Dong Yu ◽  
Si-Min Zuo ◽  
Guanghua Xia ◽  
Xing Liu ◽  
Yong-Huan Yun ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Spectrometer ◽  
Tilapia Fillets ◽  
Near Infrared Spectrometer

Rapid and non-destructive determination of quality parameters in the ‘Tommy Atkins’ mango using a novel handheld near infrared spectrometer

2016 ◽  
Vol 197 ◽  
pp. 1207-1214 ◽  
Author(s):  
Emanuel José Nascimento Marques ◽  
Sérgio Tonetto de Freitas ◽  
Maria Fernanda Pimentel ◽  
Celio Pasquini
Keyword(s):  
Near Infrared ◽  
Quality Parameters ◽  
Infrared Spectrometer ◽  
Near Infrared Spectrometer ◽  
Non Destructive

Performance and Selected Applications of an Acousto-Optic Tunable Filter Near-Infrared Spectrometer

1995 ◽  
Vol 49 (2) ◽  
pp. 177-180 ◽  
Author(s):  
Martin Hühne ◽  
Ursula Eschenauer ◽  
Heinz W. Siesler
Keyword(s):  
Aqueous Solution ◽  
Fiber Optics ◽  
Near Infrared ◽  
Tunable Filter ◽  
Near Ir ◽  
Infrared Spectrometer ◽  
And Performance ◽  
Contact Free ◽  
Near Infrared Spectrometer

The design and applications of a near-infrared (near-IR) spectrometer with an acousto-optic tunable filter (AOTF) as monochromator and light fiber optics are described. The aim of this spectrometer is rapid product and reaction control via remote sensing and chemometric data evaluation. Its application and performance are illustrated by the determination of the water content of acetone and by the contact-free temperature measurement of an aqueous solution.

Determination of the Stray Light Levels in a Dispersive Near-Infrared Spectrometer with Trichloromethane

2000 ◽  
Vol 54 (12) ◽  
pp. 1759-1766 ◽  
Author(s):  
Kenneth W. Busch ◽  
Olusola O. Soyemi ◽  
Dennis Rabbe ◽  
Marianna A. Busch
Keyword(s):  
Near Infrared ◽  
Stray Light ◽  
Light Levels ◽  
Infrared Spectrometer ◽  
Near Infrared Spectrometer
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