Abstract
Phosphoenolpyruvate (PEP) carboxylase and malic enzyme were extracted from 2-to-3-week-old 'Carignane' grape berries. The Km values for PEP and L-malate as substrates for PEP carboxylase and malic enzyme activities were respectively 0.09 and 0.45 mM. Fifty percent inhibition of PEP carboxylase activity occurred with the addition of 35 mM malate.
- Accepted March 1975.
- Published online January 1975
- Copyright 1975 by the American Society for Enology and Viticulture
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