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Fri, 18 Sep 1998 22:22:05 +0200 |
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At 00:04 1998-09-18 -0500, James wrote:
>Very interesting. I wonder what other "non-paleo" foods hunter/gatherers
were processing, and
>how long ago? What about sweet potatoes and yams?
Half a year ago I happened to find a Yams expert on the Internet:
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yams_expert = Dr. Desmond Mortley
question = Wich part of the world is the origin of (wild) yams?
Is yams edible raw?
Dear Mr. Hans Kylberg:
Artifacts from West Africa indicate that wild yams were used for food there
prior to 50,000 BC.
The alkaloid, dioscorine, is contained in some species of yam making some,
like "D. hispida" poisonous raw. Before use, the tuber is boiled so that
the alkaloid can be leached from the tuber.
You may find this book as a helpful reference: "World Vegetables" by Mas
Yamaguchi an AVI book published in 1983 by Van Nostrand Reinhold Company,
New Yory, NY.
Thank you for your interest!
Phil Loretan, Tuskegee University,Tuskegee, AL 36088
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- Hans
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