AW: [ RadSafe ] " Canadian pet food company blames Australian catdeaths on irradiation " - Company Press Release

[Rainer.Facius at dlr.de]

Kai,

at doses 10 times higher than required to eradicate (most) microorganisms, destruction of macromolecules smaller than DNA becomes feasible. Whereas vitamin requirements may vary largely between mammalian species, the response to reactive oxygen species (ROS or radicals) operates essentially on a strictly cellular level and hence no (strong) species difference would be expected. The reported lack of detrimental effects in equally irradiated dog food makes ROS an unlikely (direct) source of these effects - the more so since radical lifetimes usually are quite limited. 

Why, on the other hand, Australians waste so much time (and money) to irradiate that type of food to 10 times the doses necessary for sterilization remains weird. 

Regards, Rainer

Dr. Rainer Facius
German Aerospace Center
Institute of Aerospace Medicine
Linder Hoehe
51147 Koeln
GERMANY
Voice: +49 2203 601 3147 or 3150
FAX:   +49 2203 61970

________________________________

Von: radsafe-bounces at radlab.nl im Auftrag von Kai Kaletsch
Gesendet: Sa 29.11.2008 04:42
An: Leo M. Lowe - SENES Consultants Limited; radsafe at radlab.nl
Betreff: Re: [ RadSafe ] " Canadian pet food company blames Australian catdeaths on irradiation " - Company Press Release



Interesting. These guys don't seem to be nutcases.

It would be nice if someone familiar with food irradiation would comment on
some of the claims made. In particular, how does the reduction in vitamin
levels after food irradiation compare to other preservation methods (e.g.
pasteurization)?

Some food cans have a smooth (plastic?) inner coating. What about the
possibility of that breaking down from irradiation and contaminating the
food. (The ratio of packaging to content is pretty big for wet cat food.)

Kai

Kai Kaletsch
Environmental Instruments Canada Inc.


----- Original Message -----
From: "Leo M. Lowe - SENES Consultants Limited" <llowe at senes.ca>
To: <radsafe at radlab.nl>
Sent: Friday, November 28, 2008 12:10 PM
Subject: [ RadSafe ] " Canadian pet food company blames Australian cat
deaths on irradiation " - Company Press Release


> Hello,
>
> The company reasons for their statements can be found at
> http://www.championpetfoods.com/
> (Click on Australis Only).
>
> Comments?
>
>
> Leo M. Lowe, Ph.D., P.Phys.
>
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