Re: Avoiding gelatine ---agar as an alternative? (fwd)

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From: Gordon J. Holtslander (holtsg@duke.usask.ca)
Date: 07/18/02-07:58:12 PM Z

Hi:

yes it is. Its still quite widely used. We use _lots_ of this stuff.

Gord

On Thu, 18 Jul 2002 Ender100@aol.com wrote:

> isn't agar agar what they used to (maybe still do) use in petri dishes to
> grow cultures?
>
>
> In a message dated 7/18/02 9:29:06 PM, holtsg@duke.usask.ca writes:
>
> <<
> Hi Gord,
> Could you please post this to the list on my behalf:
>
> >Well one topic I don't think I've ever seen come up is discussion
> >on agar (also known as agar-agar). It's a gelatin-like substance
> >made from certain types of seaweed (laver, etc.--NO animal)
> >Apparently it's a fantastic size (esp. for VDB). I myself have
> >used it for single coat gums (though I have not yet perfected how
> >to apply it).
> >Personally, I'd be curious to hear about anyone's experience with
> >it, either as a sizing agent OR as an alternative to gelatine in a
> >homemade photo emulsion. Various properties,
> >similarities/dissimilarities to gelatine would all be of interest
> >to me.
> >For anyone interested, agar can be purchased in oriental grocery
> >stores (among other places), and is the main ingredient in
> >Chinese/Vietnamese jello (try the taro or mango flavours ;-) It's
> >modestly priced, but must somewhere be available inexpensively in >>
>

---------------------------------------------------------
Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
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