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SDS-PAGE analysis showing variation in molecular mass of Cel7B depending on growth medium. Lanes: 1, supernatant from A. niger D15[egI] grown on standard medium with acetic acid for 7 days; 2, supernatant from A. niger D15[egI] grown on standard medium with xylose for 9 days; 3, supernatant from A. niger D15[egI] grown on SSH for 9 days; 4, supernatant from A. niger D15[egI] grown on standard medium for 7 days; 5, molecular mass marker.
