Microwaves action on milk for infants (fwd)

Giovanni Maga maga at vetbio.unizh.ch
Tue Jan 10 09:12:10 EST 1995


In article <9501090654.AA19504 at mira.cc.umanitoba.ca>,
haoxiao at cc.UManitoba.CA (Hao Xiao) wrote:

> Colin Cracknell writes:
> > From BIOSCI-REQUEST at net.bio.net Sun Jan  8 18:47:14 1995
> > To: bioforum at net.bio.net
> > From: colinc at cix.compulink.co.uk ("Colin Cracknell")
> > Subject: Re: Microwaves action on milk for infants
> > 
> > >  2) during a short time after birth (I do not know how long) the 
> > >baby is able to take up antibodies (which are also proteins)
> 		   ??????? you mean utilize?	
> 	When the protease activities are well developed, I think.
>  
> > >which are in the mother milk. These antibodies will of course 
> > >loose their capabilities if they become denaturated.
> 
> According to my experience, Ig's are glycoproteins and are "relatively"
> acid-base (pH 2-12) and thermal stable (up to 60 C) after short (5-10 min)
>  period exposure but I have no idea if the microwave frequency can directly
>  destroy the protein other than the temperature. 
> 
> 
> > 
> > I think they might have difficulty closing the door of microwave oven 
> > after inserting the breast(s).
> 
> 	Actually, you don't have to freeze your breast(s) for 
> preservartion of mother milk.
> 
> > 
> > ------------------------------------------------------------------
> > colinc at cix.compulink.co.uk | "Specialisation is for insects" [RAH]
> >                            | "I specialise in insects" [ColinC]
> > All opinions are my own, but Darter Systems agrees with me.
> > ------------------------------------------------------------------
> > 
> > 
> 
> HXiao
> 
> A nerd Ph.D student in Toxicology


Ig's present in the mother milk are one of the main sources of antibodies
for the baby and contribute also to prevent massive bacterial colonization
of the oral tract by exogenous bacteria (remember that newborns are
"sterile" individuals, protected in the body by the placenta). In fact,
babies which do not receive mother's milk have different bacterial
colonization than babies which do. The first meeting of the baby with
bacteria is in the vagina, during birth. Then, until the baby will develope
his own immune system, mother's milk is very effective as a source of
antibodies (beside other essential contributions). Thus, "take up" means
exactly "utilize".
G. Maga, PhD Biochemistry
Universtiy Zuerich (CH)
e-mail: maga at vetbio.unizh.ch  



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