Comparison of Fatty Acid Proportions Determined by Mid-Infrared Spectroscopy and Gas Chromatography in Bulk and Individual Milk Samples

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F20%3A43901673" target="_blank" >RIV/60076658:12220/20:43901673 - isvavai.cz</a>

Alternative codes found

RIV/26722861:_____/20:N0000014

Result on the web

<a href="https://www.mdpi.com/2076-2615/10/6/1095" target="_blank" >https://www.mdpi.com/2076-2615/10/6/1095</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ani10061095" target="_blank" >10.3390/ani10061095</a>

Result language

angličtina

Original language name

Comparison of Fatty Acid Proportions Determined by Mid-Infrared Spectroscopy and Gas Chromatography in Bulk and Individual Milk Samples

Original language description

Rapid analytical methods can contribute to the expansion of milk fatty acid determination for various important practical purposes. The reliability of data resulting from these routine methods plays a crucial role. Bulk and individual milk samples (60 and 345, respectively) were obtained from Czech Fleckvieh and Holstein dairy cows in the Czech Republic. The correlation between milk fatty acid (FA) proportions determined by the routine method (infrared spectroscopy in the mid-region in connection with Fourier transformation; FT-MIR) and the reference method (gas chromatography; GC) was evaluated. To validate the calibration of the FT-MIR method, a linear regression model was used. For bulk milk samples, the correlation coefficients between these methods were higher for the saturated (SFAs) and unsaturated FAs (UFAs) (r = 0.7169 and 0.9232; p &lt; 0.001) than for the trans isomers of UFAs (TFAs) and polyunsaturated FAs (PUFAs) (r = 0.5706 and 0.6278; p &lt; 0.001). Similar results were found for individual milk samples: r = 0.8592 and 0.8666 (p &lt; 0.001) for SFAs and UFAs, 0.1690 (p &lt; 0.01) for TFAs, and 0.3314 (p &lt; 0.001) for PUFAs. The correlation coefficients for TFAs and PUFAs were statistically significant but too low for practical analytical application. The results indicate that the FT-MIR method can be used for routine determination mainly for SFAs and UFAs.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Project

<a href="/en/project/QJ1510336" target="_blank" >QJ1510336: Research and support of production of nutritionally and beneficial milk products for consumers using targeted selection and modification of milk fat composition</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Animals

ISSN

2076-2615

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

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UT code for WoS article

000550929700001

EID of the result in the Scopus database

2-s2.0-85087135011