On 23/3/04 1:35 pm, in article
[email protected], "Jon
Senior" <jon_AT_restlesslemon.co.uk> wrote:
> "W K" <
[email protected]> wrote in message
>
news:[email protected]...
>> Why does anyone bother with non-bio? Bio works better,
>> and the scares about it were testicular.
> "Testicular"? A polite way of saying "bollocks"?
> Anyway, the enzymes used are (if recall correctly)
> proteases, namely they "eat" proteins. Struck me as being
> a bad call for most natural fibres and
Bad for protein based ones, ie wool and silk. Should be fine
for cellulose based ones such as cotton or linen.
Polyamide is a sort of synthetic protein (OK all you
chemists out there, I know it isn't a protein, but the
hydrolysable bond in proteins is the same as that in the
polyamides) so I would suspect that these fabrics may be
susceptible long term to biological detergents.
The other enzymes may be peroxidases to aid with bleaching
and making the clothes look whiter.
> certainly if they are not removed by washing, they can't
> do any good. Whether or not they do harm is a different
> matter, but certainly some people appear to react to them.
hence the itchy testicles. Most unpleasant. I personally
prefer ordinary detergent and heat (and yes I am a
biochemist(ish) by profession.)
..d