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Storage of Leftover Unpasteurized and Pasteurized Human Milk
Author(s) -
Meng Ting,
Fogleman April,
Cohen Ronald,
Sakamoto Pauline,
Allen Jonathan
Publication year - 2013
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.27.1_supplement.629.19
Subject(s) - pasteurization , food science , bottle , bacterial growth , bacteria , medicine , biology , genetics , mechanical engineering , engineering
The current human milk storage guidelines recommend that leftover HM be discarded immediately or soon after an infant is finished feeding. There is limited research to support this recommendation. The objective was to observe the difference in bacterial growth in leftover unpasteurized human milk (HM) and leftover pasteurized milk (PHM). Five mother‐baby dyads participated in the study. Each baby was fed 1 – 2 ounces of milk from a bottle prepared with the mother's pasteurized milk and the mother's unpasteurized milk. Leftover milk was collected in sterile containers and analyzed for bacterial growth at specific time points during storage. Acceptable levels of bacteria were chosen as 10^5 colony‐forming units per milliliter (CFU/ml). HM was stored from 6 to 9 hours and PHM from 9 to 24 hours at 24°C before reaching 10^5 CFU/ml. HM was stored from 4 to 6 days and PHM was stored at least 6 days at 4°C before reaching 10^5 CFU/ml. More research is needed with a larger number of participants and focusing on the growth of specific strains of pathogenic bacteria in leftover human milk so that consumer recommendations can be made. The data show that bacteria originating from the mother are greater than bacteria originating from contamination by an infant.