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SDS-PAGE analysis for partial purification of chitinase from Bacillus licheniformis B307. 1: Flow-throw of MWCO 10kDa tube, 2: fraction between 10kDa and 30kDa, 3: fraction between 30kDa and 50kDa, 4: supernatant of MWCO 50kDa tube, 5: nothing, 6: product of precipitation by 65% SAS. See supplementary Figure 1 for full image.
