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Validation and application of a method for the simultaneous absolute quantification of 16 neutral and acidic human milk oligosaccharides by graphitized carbon liquid chromatography - electrospray ionization - mass spectrometry

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Autor(es):
Tonon, Karina M. [1] ; Miranda, Antonio [2] ; Abrao, V, Ana Cristina F. ; de Morais, Mauro B. [3] ; Morais, Tania B. [4]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Fed Sao Paulo, Nutr Postgrad Program, Rua Napoleao de Barros, Sao Paulo, SP - Brazil
[2] Univ Fed Sao Paulo, Dept Biophys, Rua Tres de Maio, Sao Paulo, SP - Brazil
[3] Univ Fed Sao Paulo, Div Pediat Gastroenterol, Rua Coronel Lisboa, Sao Paulo, SP - Brazil
[4] Univ Fed Sao Paulo, Food Qual Control Lab, Nutr Postgrad Program, Rua Napoleao de Barros, Sao Paulo, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: Food Chemistry; v. 274, p. 691-697, FEB 15 2019.
Citações Web of Science: 2
Resumo

Human milk oligosaccharides (HMOs) are free glycans naturally present in human milk that act as prebiotics, prevent pathogen binding, modulate the immune system and support brain development in infants. The HMOs composition and concentrations vary significantly among different women mainly because of the direct influence of the Secretor and Lewis phenotypes on HMOs biosynthesis. Analytical methods that can identify the differences in the HMOs composition and concentrations are a fundamental tool in HMOs research. This paper describes a simple HMOs extraction and analysis for the simultaneous and absolute quantification of neutral and acidic HMOs by graphitized carbon liquid chromatography-electrospray ionization-mass spectrometry. This method was validated and applied to analyze HMOs in the human milk obtained from 10 women. This method allows accurate and reliable quantification of HMOs and can be used to determine differences in HMOs concentrations throughout lactation and among women with different Secretor and Lewis phenotypes. (AU)

Processo FAPESP: 14/13514-5 - Oligossacarídeos do leite humano: relação com as características socioambientais, genéticas, presença de doença alérgica materna e com a microbiota do lactente
Beneficiário:Tania Beninga de Morais
Linha de fomento: Auxílio à Pesquisa - Regular