Cat. No. D314602 / D314603
Sample-specific bacterial collection followed by shared lysozyme lysis, Proteinase K digestion and silica column purification.
This workflow separates sample-specific bacterial collection from the shared lysis, binding, wash and elution path. It is intended as a practical companion to the product manual rather than a replacement for the official protocol. The five sample tabs follow the sample logic described in the manual and then converge into the same silica column purification workflow.
Protocol times stated in the product manual are retained where applicable. Steps without explicit timing are estimated for an experienced operator, including pipetting, vortexing, tube transfer, centrifuge handling, supernatant removal and column repositioning. For short protocol ranges, the timeline uses the midpoint. For long or optional protocol ranges, the displayed standard timeline uses the shortest reasonable path, while optional rows are marked separately and are not added to the standard cumulative time unless selected by the operator. Cumulative time runs continuously from bacterial collection to final elution.
D3146 is organized around bacterial pellet preparation rather than a single direct-input route. Different source materials first need to be converted into a controlled bacterial pellet; after this point, the workflow uses lysozyme-assisted resuspension, DL / Proteinase K digestion, ethanol-mediated binding adjustment and silica membrane purification.
The main handling point is pellet control. Excess tissue debris, viscous matrix, agar substrate or oversized sediment can interfere with lysis, binding and column flow. Difficult-to-lyse bacteria may require optional glass-bead disruption, while RNA-free genomic DNA preparation may require RNase A treatment according to the manual. Ethanol must be added to Buffer GW1 and Buffer GW2 before use.