A Nonhost Peptidase Inhibitor of ~14 kDa from Butea monosperma (Lam.) Taub. Seeds Affects Negatively the Growth and Developmental Physiology of Helicoverpa armigera

Table 2

IC₅₀ (µg/mL) values for both PIs and standard PIs. Except for value of BmPI, others have been adapted from Babu and Subrahmanyam [24].

Enzyme source	Inhibitor	IC50 (µg/mL)*
H. armigera midgut proteinases	B. monosperma (BmPI)	2.0
	Standard SKTI; (soybean Kunitz trypsin inhibitor)	0.13
	Standard SBBI; (soybean Bowman-Birk inhibitor)	2.0
	Acacia senegal (AsPI)	2.0

∗IC₅₀: concentration of inhibitor, which reduces the enzyme activity to 50% of the original.