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Table 1 Partial properties of the egg extract

From: Physiological and biochemical characterization of egg extract of black widow spiders to uncover molecular basis of egg toxicity


Determined value

Protein content


Protease activity

0.332 U/mg

Alkaline phosphatase activity

0.005 U/mg

Acid phosphatase activity

0.007 U/mg

Acetylcholinesterase activity

0.004 U/mg

Hyaluronidase activity

3.765 U/mg

LD50 in mice

3.32 mg/kg