Freezing breast milk

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paul.fr

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Freezing breast milk
« on: 07/04/2007 22:41:38 »
Mothers can now buy bags to express breast milk in to, then freeze them for dad to feed at a later time. My question is: does the thawing increase the bacteria count?

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Offline Karen W.

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Freezing breast milk
« Reply #1 on: 07/04/2007 22:46:16 »
Well that is an interesting question.. I never froze my breast milk, although I did refrigerate it! Hubby tried it in his coffee once..LOL LOL! I will have to see what I can find out about that!
« Last Edit: 08/04/2007 00:49:39 by Karen W. »

"Life is not measured by the number of Breaths we take, but by the moments that take our breath away."

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another_someone

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Freezing breast milk
« Reply #2 on: 08/04/2007 00:26:15 »
I would be more concerned about whether freezing might damage some of the more sensitive proteins in the milk - possibly some of the mother's antibodies, etc.

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Offline iko

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Freezing breast milk
« Reply #3 on: 08/04/2007 23:14:38 »
Hi paul.fr,

I would say that actually freezing prevents bacterial overgrowth.
As George suggested here, eventually some more labile proteins might be affected by freezing and thawing that damages vital cells mostly.  Antibodies are tough, even coagulation proteins are well preserved by freezing, so frozen donor plasma units are commonly used (intravenously, of course).

ikod

« Last Edit: 09/04/2007 22:19:24 by iko »

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paul.fr

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Freezing breast milk
« Reply #4 on: 09/04/2007 09:28:38 »
Thanks, Iko and George.

i will now have to stop giving my sister that funny look when she freezes hers, now i need a new topic for big brother to moan at little sister about.  [;D]

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Offline iko

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Freezing breast milk
« Reply #5 on: 09/04/2007 17:42:24 »
This "library on your desk" is just unbelieveble.
Call it Google or PubMed or www...

In the last few years freezing of breast milk has actually been investigated for a possible positive effect like viral (CMV) inactivation, but these tiny bugs seem to freeze quite nicely and peacefully wait for thawing to go around and snag cells...using all their well preserved bits and pieces!
So bottles/bags/disposabledevices producers can only claim a more 'practical' way to feed your baby.

"...the freezing breast milk at -20C preserved biochemical and immunologic quality of milk; however, late viral RNA and viral infectivity was also preserved..."


page 302; click here:   http://www.abpblh.org.br/Citomegalovirus%20e%20Leite%20Humano-Miron%20e%20cl%20-2005.pdf
« Last Edit: 09/04/2007 18:36:41 by iko »