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Qualitative and quantitative vibrational spectroscopic analysis of macronutrients in breast milk.

ABSTRACT: Raman and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy were used to analyze 208 breast milk samples as part of a larger research study. Comprehensive qualitative and quantitative analysis was carried out using chemometric methods: principal component analysis (PCA) and partial least squares (PLS) regression. The obtained information on the main macronutrients (protein, fat and carbohydrate) were primarily evaluated in relation to the available metadata of the samples, where study location and respective primary food sources revealed a stronger differentiation in fat composition than its absolute content. The limitations and challenges of using both spectroscopic techniques for the type of analysis are also highlighted.

SUBMITTER: Berzins K 

PROVIDER: S-EPMC7684643 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Qualitative and quantitative vibrational spectroscopic analysis of macronutrients in breast milk.

Bērziņš Kārlis K   Harrison Samuel D L SDL   Leong Claudia C   Fraser-Miller Sara J SJ   Harper Michelle J MJ   Diana Aly A   Gibson Rosalind S RS   Houghton Lisa A LA   Gordon Keith C KC  

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy 20200923

Raman and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy were used to analyze 208 breast milk samples as part of a larger research study. Comprehensive qualitative and quantitative analysis was carried out using chemometric methods: principal component analysis (PCA) and partial least squares (PLS) regression. The obtained information on the main macronutrients (protein, fat and carbohydrate) were primarily evaluated in relation to the available metadata of the s  ...[more]