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Cited by 535

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Identification, Quantification, and Relative Concentrations of Carotenoids and Their Metabolites in Human Milk and Serum

Khachik, Frederick, Spangler, Christopher J., Smith, J. Cecil, Canfield, Louise M., Steck, Andrea, Pfander, Hanspeter·1997·Analytical Chemistry

Abstract

Thirty-four carotenoids, including 13 geometrical isomers and eight metabolites, in breast milk and serum of three lactating mothers have been separated, identified, quantified, and compared by high-performance liquid chromatography (HPLC)-photodiode array (PDA) detection-mass spectrometry (MS). Among the metabolites were two oxidation products of lycopene and four of lutein/ zeaxanthin. In addition, two metabolites of lutein, formed as a result of dehydration of this dihydroxycarotenoid under acidic conditions similar to those of the stomach, have also been identified in plasma and breast milk. The oxidative metabolites of lycopene with a novel five-membered-ring end group have been identified as epimeric 2,6-cyclolycopene-1,5-diols by comparison of their HPLC-UV/visible-MS profiles with those of fully characterized (1H- and 13C-NMR spectroscopy) synthetic compounds. The HPLC procedures employed also detected vitamin A, two forms of vitamin E (gamma- and alpha-tocopherol), and two non-carotenoid food components, i.e., piperine and caffeine, in serum and breast milk.

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Metadata

Authors
Khachik, F., Spangler, C. J., Smith, J. C., Canfield, L. M., Steck, A., & Pfander, H.
Venue
Analytical Chemistry
Published
1997-05-01
Volume
69
Issue
10
Pages
1873-1881
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W1982105988
Cited by
535
References
1
FWCI
10.66
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Identification, Quantification, and Relative Concentrations of Carotenoids and Their Metabolites in Human Milk and Serum. https://app.cochat.ai/papers/10.1021/ac961085i
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Khachik, F., Spangler, C. J., Smith, J. C., Canfield, L. M., Steck, A., & Pfander, H. (1997). Identification, Quantification, and Relative Concentrations of Carotenoids and Their Metabolites in Human Milk and Serum. Analytical Chemistry. https://doi.org/10.1021/ac961085i

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