What's in an enzyme.

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Daniel Quinn
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Re: What's in an enzyme.

Unread post by Daniel Quinn »

Nah, I'm merely restating a fact.

Geoff.R.G
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Re: What's in an enzyme.

Unread post by Geoff.R.G »

guydarryl wrote:
Sat Oct 17, 2020 7:17 pm
Oh dear, heading in to "ad hom" territory.
I think, I hope, DQ was referring to his own post.

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guydarryl
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Re: What's in an enzyme.

Unread post by guydarryl »

Geoff.R.G wrote:
Sat Oct 17, 2020 8:41 pm
guydarryl wrote:
Sat Oct 17, 2020 7:17 pm
Oh dear, heading in to "ad hom" territory.
I think, I hope, DQ was referring to his own post.
Actually you must be right - just me being overly sensitive, after all who could think that I didn't make my point clearly:



"Re: What's in an enzyme.
Post by guydarryl » Sat Oct 03, 2020 10:16 am

Many years ago I worked on photographic film research.

To remove gelatin (a protein) which "held" the silver salts (and recover the silver from photographic film) we used pepsin - it works best in acidic conditions and at 30 - 40 degrees c - rather like your stomach conditions.

https://www.philipharris.co.uk/product/ ... g/b8a01879

Needs to be handled with great care - it does digest proteins!

I would guess that most enzyme record cleaners are bull, as surely the temperatures they are used at are quite low and so the "dwell time" required to digest proteins (from finger prints etc) would be longer than the time the record is left in contact with the solution?"
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Re: What's in an enzyme.

Unread post by TheMadMick »

I expect the record cleaning enzyme is not for protein but for fat. That's what's on our skin. Otherwise, what's on the surface will be dust and dirt which is readily removed mechanically but a lot stickier when combined with fat.

Also, enzyme technology has progressed a lot in recent years.
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Re: What's in an enzyme.

Unread post by Daniel Quinn »

That fact is in dispute. Do you have any evidence.

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Re: What's in an enzyme.

Unread post by TheMadMick »

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Re: What's in an enzyme.

Unread post by guydarryl »

Not just fat apparently - absolutely fascinating stuff, hadn't bothered reading up on it previously:

https://serval.unil.ch/resource/serval: ... 01/REF.pdf
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