. 1999 Jan;119(1):89–100. doi: 10.1104/pp.119.1.89

Table II.

Inhibition of proteinase activity in extracts from 30-month-old tubers by nonheated and heated crude extracts and PMC from 6-month-old tubers

Source of Inhibitor	FITC-Casein Hydrolysis
	units mg⁻¹ protein h⁻¹	% inhibition
No inhibitor	80.3	0
6-month-old tuber extract	12.8	84
Heat-treated 6-month-old tuber extract	72.9	9
PMC from 6-month-old tubers	10.5	87
Heat-treated PMC from 6-month-old tubers	76.3	5

FITC-casein hydrolysis was determined by incubating extracts from 30-month-old tubers at 37°C (60 min) with or without inhibitors. Inhibitors included heat-treated (95°C, 10 min) or nonheated crude extract (160 μg of protein equivalents) and PMC (65 μg of protein equivalents) from 6-month-old tubers. lsd_0.05 = 15.8 units mg⁻¹ protein h⁻¹.