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A unit of quantity of avidine. One avidine unit = the smallest quantity that completely suppresses the growth-promoting activity of 1 microgram of biotin in yeast. Avidine is a substance found in the whites of eggs.
F. G. Dhyse.
Proceedings of the Society for Experimental Biology, volume 85, page 515
(1954)
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Last revised: 20 May 2004.