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SDS-PAGE (12%) with 0.1% (w/v) colloidal chitin as a substrate. WM, protein weight markers (97~14.4 kDa). CH2, SH16, PQ34 and TN42, chitinase enzyme of four Trichoderma asperellum strains. A clear band on the gel confirmed the chitinolytic activity of enzyme with an estimated molecular weight of 42 kDa.
