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Colorimetric assay of neuropathy target esterase activity in insect

Colorimetric assay for detection of neuropathy target esterase (NTE) activity was developed and then the NTE activities in bollworm were tested. Actually, the method of assay for NTE activity in vertebrates was modified and then applicable to the detection of the NTE activity in invertebrates (e g. insects). The result showed that NTE activities in different parts (head, medium itense, and fatty body) in larva of bollworms were 5.30, 1.40, and 14.50 nmol/min/mg protein respectively.