“4.4 to 6.1 when averaging results in all solvents, PEG was very efficient in increasing the activity of α‐chymotrypsin up to more than 400‐fold compared to that of the powder lyophilized from buffer alone.”
“To overcome this, we investigated the effectiveness of the covalent modification of α‐chymotrypsin with methoxy poly(ethylene glycol) ( PEG ) with a Mw of 5,000 to enhance its activity.”