The effect of pasteurization on trace elements in donor breast milk

Mohd-Taufek, N., Cartwright, D., Davies, M., Hewavitharana, A. K., Koorts, P., McConachy, H., Shaw, P. N., Sumner, R. and Whitfield, K. (2016) The effect of pasteurization on trace elements in donor breast milk. Journal of Perinatology, 36 10: 897-900. doi:10.1038/jp.2016.88

Author Mohd-Taufek, N.
Cartwright, D.
Davies, M.
Hewavitharana, A. K.
Koorts, P.
McConachy, H.
Shaw, P. N.
Sumner, R.
Whitfield, K.
Title The effect of pasteurization on trace elements in donor breast milk
Journal name Journal of Perinatology   Check publisher's open access policy
ISSN 1476-5543
Publication date 2016-06-02
Year available 2016
Sub-type Article (original research)
DOI 10.1038/jp.2016.88
Open Access Status Not Open Access
Volume 36
Issue 10
Start page 897
End page 900
Total pages 4
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2017
Language eng
Formatted abstract
Objective: Premature infants often receive pasteurized donor human milk when mothers are unable to provide their own milk. This study aims to establish the effect of the pasteurization process on a range of trace elements in donor milk.

Study Design: Breast milk was collected from 16 mothers donating to the milk bank at the Royal Brisbane and Women’s Hospital. Samples were divided into pre- and post-pasteurization aliquots and were Holder pasteurized. Inductively coupled plasma mass spectrometry was used to analyze the trace elements zinc (Zn), copper (Cu), selenium (Se), manganese (Mn), iodine (I), iron (Fe), molybdenum (Mo) and bromine (Br). Differences in trace elements pre- and post-pasteurization were analyzed.

Results:No significant differences were found between the trace elements tested pre- and post-pasteurization, except for Fe (P<0.05). The median (interquartile range, 25 to 75%; μg l-1) of trace elements for pre- and post- pasteurization aliquots were—Zn: 1639 (888–4508), 1743 (878–4143), Cu: 360 (258–571), 367 (253–531), Se: 12.34 (11.73–17.60), 12.62 (11.94–16.64), Mn: (1.48 (1.01–1.75), 1.49 (1.11–1.75), I (153 (94–189), 158 (93–183), Fe (211 (171–277), 194 (153–253), Mo (1.46 (0.37–2.99), 1.42 (0.29–3.73) and Br (1066 (834–1443), 989 (902–1396).

Conclusions: Pasteurization had minimal effect on several trace elements in donor breast milk but high levels of inter-donor variability of trace elements were observed. The observed decrease in the iron content of pasteurized donor milk is, however, unlikely to be clinically relevant.
Keyword Pasteurization
Donor breast milk
Trace elements
Holder pasteurization
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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School of Pharmacy Publications
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