Near Infrared Spectrophotometric Analysis for Measuring Major Constituents of Raw Milk

Sato, Tetsuo; Iwamoto, Mutsuo; Hashizume, Kazumoto; Yoshino, Masazumi; Furukawa, Sakon; Someya, Yukio; Yano, Nobuhiro

doi:10.2508/chikusan.56.878

Cited by 6 publications

(5 citation statements)

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“…4 near infrared (nIr) spectroscopy has been applied to measure the content of various milk constituents. [5][6][7][8][9][10][11][12] long wavelength nIr spectroscopy (1100-2500 nm) is a fast technique that can Near infrared spectroscopy using short wavelengths and leave-one-cow-out cross-validation for quantification of somatic cells in milk Introduction R. Tsenkova et al, J. Near Infrared Spectrosc.…”

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confidence: 99%

Near Infrared Spectroscopy Using Short Wavelengths and Leave-One-Cow-Out Cross-Validation for Quantification of Somatic Cells in Milk

Tsenkova

Meilina

Kuroki

et al. 2009

Journal of Near Infrared Spectroscopy

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A short wavelength near infrared (NIR) analysis method for somatic cell count (SCC) determination in unhomogenised raw milk was developed. NIR spectra (700-1100 nm) of unhomogenised milk samples from 14 cows during days 7 to 36 of their lactation were meas-their lactation were meas-lactation were measured for two consecutive years. Measurements from animals with different physiological conditions (healthy and mastitic) were included. A "leave-one-cow-out" cross-validation partial least square (PLS) regression model for SCC in the raw milk was developed. Good correlation (R 2 = 0.76) was observed between estimated and reference SCC levels in milk samples when the differential spectra and SCC reference values were used for developing the PLS model. The NIR estimation achieved a standard error of 0.3 LogSCC. The results were well within the range needed for real-time monitoring of milk on a daily basis. Thus, the NIR method may prove to be a valuable tool for monitoring somatic cells in routine milk samples analysed for dairy cow health management.

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confidence: 99%

Near Infrared Spectroscopy Using Short Wavelengths and Leave-One-Cow-Out Cross-Validation for Quantification of Somatic Cells in Milk

Tsenkova

Meilina

Kuroki

et al. 2009

Journal of Near Infrared Spectroscopy

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“…NIR-FT IR in the near-range with Fourier transform milk (raw) Sato et al (1985Sato et al ( , 1987; Šustová et al (2006) NIR (RTA) a flow, stepper IR spectroscopy in the near area milk Katz (2007); Pecová et al (2017) FT-Raman an interaction between photons of incident light with rotational-vibrational energy states of the molecule (the scattered irradiation has a different wavelength than the incident irradiation) milk and dairy products (dried)…”

Section: Mir-ftmentioning

confidence: 99%

Milk Protein Analysis: an Overview of the Methods - Development and Application

Kala

Samková

Hanuš³

et al. 2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Milk protein content is an important component of milk, especially from a nutritional point of view and also for payment purposes. The aim of work was to draw up an overview on reference and routine methods for protein determination. Reference methods perform accurate analyses comply according to the International Standard ISO whereas routine methods perform analyses using routine instrumental techniques for faster and cheaper results with acceptable accuracy and a large number of processed samples. In most of cases, using of routine indirect methods for milk protein analysis requires their specific calibrations according to biological kind of measured milk (cow’s, goat’s or sheep’s milk) or specific conditions of milk technology treatment. Also, the quality control measures have a significant role for result determination reliability.

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“…Since the 1980s, near infrared (NIR) reflectance spectroscopy has been explored and attempts made to determine fat content in raw milk. Sato et al 1,2 studied the application of near infrared spectroscopy for the analysis of raw milk. They obtained good results for fat content; the correlation coefficient and residual standard deviation between the NIR method and reference method were 0.99 and 0.09, respectively.…”

Section: Introductionmentioning

confidence: 99%

Development of Calibration with Sample Cell Compensation for Determining the Fat Content of Unhomogenised Raw Milk by a Simple near Infrared Transmittance Method

Chen

Iyo

Kawano

et al. 1999

Journal of Near Infrared Spectroscopy

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A simple near infrared (NIR) transmittance measuring method for unhomogenised raw milk was developed using test tubes as sample cells and a specially designed sample holder which could control sample temperature. Shortwave NIR spectra (700-1100 nm) of 154 unhomogenised milk samples from eight cows, under different nutritional conditions, were measured at 40°C using this method. The calibration and validation for fat content in raw milk were performed by partial least squares regression in two ways, using either a specific test tube or any individual test tube as a sample cell. A functional calibration model for determining fat content in raw milk with relatively high accuracy (multiple correlation coefficient of 0.99 and SEP of 0.19%) was obtained, which is applicable even when using individual test tubes as sample cells. By examining the loading weight of each factor included in the calibration model for fat determination in milk, it was found that the model consisted of, not only the factor for fat, but also factors which worked as adjusting terms, eliminating any effects caused by the other major components of milk such as lactose, casein and water and by the sample cell.

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Near Infrared Spectrophotometric Analysis for Measuring Major Constituents of Raw Milk

Cited by 6 publications

References 0 publications

Near Infrared Spectroscopy Using Short Wavelengths and Leave-One-Cow-Out Cross-Validation for Quantification of Somatic Cells in Milk

Near Infrared Spectroscopy Using Short Wavelengths and Leave-One-Cow-Out Cross-Validation for Quantification of Somatic Cells in Milk

Milk Protein Analysis: an Overview of the Methods - Development and Application

Development of Calibration with Sample Cell Compensation for Determining the Fat Content of Unhomogenised Raw Milk by a Simple near Infrared Transmittance Method

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