Kunitz or Kunitz Unit
Kunitz or Kunitz Unit : A unit used in biochemistry to describe the concentration or activity of the enzyme ribonuclease, which attacks ribonucleic acid (RNA). The action of the enzyme causes an increase in the absorbance of ultraviolet light. One kunitz is the concentration of the enzyme causing an increase in absorbance at a wavelength of 260 nm by 0.001 per mL of enzyme when acting upon highly polymerized DNA at 25 C and pH 5.0 under specified conditions. The unit's name recognizes the Russian-American biochemist M. Kunitz, who proposed the standard test in 1946
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