Fig. 2From: An approach to change the basic polymer composition of the milled Fomes fomentarius fruiting bodiesMicroscopic images of the F. fomentarius samples after repetitive alkali-acidic treatment. a Raw material, b sample #1, c sample #2, d sample #3. See Fig. 3 for identification of the samples. Digital microscope VHX-7000 (Keyence Deutschland GmbH), transmitted light, magnification of × 667 was usedBack to article page