Determination of six human milk oligosaccharides in dairy product by precolumn derivatization high performance liquid chromatography with fluorescence detection

Autor: LI Qiqi, HUANG Jiale, MU Shuyi, LI Qishan, HUANG Jingjun
Jazyk: English<br />Chinese
Rok vydání: 2024
Předmět:
Zdroj: Shipin yu jixie, Vol 40, Iss 4, Pp 54-58 (2024)
Druh dokumentu: article
ISSN: 1003-5788
DOI: 10.13652/j.spjx.1003.5788.2023.80808
Popis: Objective: To astablish a strong popularity, high sensitivity of six human milk oligosaccharides in dairy product by precolumn derivatization high performance liquid chromatography-fluorescence method. Methods: Aquatic product sample was precipitated with glacial acetic acid, filtration by using the filter paper. It was derived by 2-aminobenzamide solution. The extracts were centrifuged and filtered by using the organic filter membrane and analyzed by using a AdvanceBio Glycan Map column to be separated and detected,employing acetonitrile-50 mmol/L ammonium formate solution (pH 4.4) as the mobile phase for gradient elution. Results: Under the experimental conditions, six human milk oligosaccharides in dairy product were linear in the range of 1.00~400.0 mg/L, and the correlation coefficients were all over 0.999. The detection limit of the method was 4.1~10.9 mg/kg, the limits of quantification were 12.3~32.7 mg/kg, the mean recoveries rate was ranged from 71.3% to 90.2% with the intra-day precisions (n=6) in the range of 1.0%~6.3% and inter-day precisions (n=6) less than 10.0%. Conclusion: This method can meet the requirements of the daily detection of six human milk oligosaccharides due to its simplicity and sensitives.
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