| 초록 |
Wide variety of lignin structure is observed not only among different wood species, but also in different layers within a single cell wall, or, in different types of cell in a same wood. General rule found for the wide variety of lignin structure among different wood species can be also found for different cell wall layers, or, different type of cells. Namely, when a certain cell wall layer, or, certain type of cell has lower lignin content, its lignin is richer in β-O-4structure, especially of erythro type, and, syringyl type of aromatics. Because these characteristics found together with lower lignin content are favorable for delignification reactions during pulping and bleaching, anatomical aspect of lignin structure is important to understand the pulpability of woods. |
