Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women

B. Debski, D. A. Finley, M. F. Picciano, B. Lonnerdal, J. Milner

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The concentration of selenium (Se) in milk samples obtained from 26 lacto-ovo-vegetarian (vegatarian) women was significantly greater (22.2 ± 0.8 ng/ml) than from 12 nonvegetarian women (16.8 ± 1.3). Mean GSH-Px activity (EC 1.11.1.9) in milk from vegetarians was 146% of that in milk from nonvegetarians. A significant correlation between GSH-Px activity and Se concentration was observed (r = 0.76). Likewise a significant correlation was observed between milk linoleic acid content and GSH-Px activity (r = 0.68). In undialyzed samples from vegetarian women, most of the increased content of Se was found in fractions containing proteins of 100 kdaltons (kD) or more. The high glutathione peroxidase activity in milk from vegetarians was associated with selenoproteins in the 90 to 100 kD range. A distinct 40 kD Se peak was also detected in milk from vegetarians. There was no difference in Se intake between the two groups of women. Therefore, although data from the present study show that both the quantity and distribution of Se in human milk can be modified by the maternal diet, the increased Se content and GSH-Px activity in milk from vegetarians cannot be explained by an increased Se intake.

Original languageEnglish (US)
Pages (from-to)215-220
Number of pages6
JournalJournal of Nutrition
Volume119
Issue number2
StatePublished - 1989
Externally publishedYes

Fingerprint

vegetarian diet
Selenium
Glutathione Peroxidase
glutathione peroxidase
selenium
Milk
milk
Selenoproteins
selenoproteins
maternal nutrition
Vegetarians
Human Milk
Linoleic Acid
breast milk
linoleic acid
Mothers
Diet
sampling

ASJC Scopus subject areas

  • Food Science
  • Medicine (miscellaneous)

Cite this

Debski, B., Finley, D. A., Picciano, M. F., Lonnerdal, B., & Milner, J. (1989). Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. Journal of Nutrition, 119(2), 215-220.

Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. / Debski, B.; Finley, D. A.; Picciano, M. F.; Lonnerdal, B.; Milner, J.

In: Journal of Nutrition, Vol. 119, No. 2, 1989, p. 215-220.

Research output: Contribution to journalArticle

Debski, B, Finley, DA, Picciano, MF, Lonnerdal, B & Milner, J 1989, 'Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women', Journal of Nutrition, vol. 119, no. 2, pp. 215-220.
Debski B, Finley DA, Picciano MF, Lonnerdal B, Milner J. Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. Journal of Nutrition. 1989;119(2):215-220.
Debski, B. ; Finley, D. A. ; Picciano, M. F. ; Lonnerdal, B. ; Milner, J. / Selenium content and glutathione peroxidase activity of milk from vegetarian and nonvegetarian women. In: Journal of Nutrition. 1989 ; Vol. 119, No. 2. pp. 215-220.
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