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<pre>Kiritsakis [1] has a 5 page chapter on this subject.

To summarise:
Exhausted Olive Pomace (Kernel Wood)
- lots of fibre, cellulose and some proteins. Used mainly for heating water
in the olive mills in a special burner. Certain parts useful for making
plastics and other materials. Ash makes good fertilizer due to high P, K and
Ca content.

Waste Water:
>50% of fruit. Rich in sugars, also contains organic acids, emulsified oil,
minerals and other things. pH ~5.5. Used for growth of some yeast esp. in
Spain for stock feed with ammonium phosphate addition.

Kiritsakis gives a breakdown of the constituents of these two products.
For waste water, see also [2], which suggests we should be making use of
waste waters as a cheap source of natural antioxidants (very healthy things,
these!)

Adrian

[1] Kiritsakis, A.K. (Ed) (1991) Olive Oil, American Oil Chemists' Society,
Champaign, Illinois.

[2] Visioli, F., Vinceri, F.F. & Galli, C. (1995) Waste-Waters from Olive Oil
Production are Rich in Natural Antioxidants. Experientia 51:1, 32-34.

Peter Warnock wrote:
> I have about 72 pages of information on traditional olive oil processing
> and the uses of pressing wastes (as an archaeologist, I'm interested in
> how olive remains get incorporated into the archaeological record). This
> makes up a major chapter of my dissertation (I hope to finish this
> semester). Since I hope to publish this information as part of my Ph.D.
> dissertation, I'd rather not post it to the group at the moment. However,
> I would gladly answer or respond to any specific comments or questions on
> the subject.
--
Adrian.Shaw@aber.ac.uk
Institute of Biological Sciences, University of Wales,
Aberystwyth, Ceredigion, Wales
http://pcjagg.dbs.aber.ac.uk/index.html
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