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Distillation. --- Absorption. --- Distillation. --- Gaz --- Absorption et adsorption.
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Progress in wood chemistry has been related mainly to chemical wood pulping and bleaching and chemical utilization of wood and wood extractives. Meth ods of wood analysis were developed by Schorger (proximate analysis in 1917) and Dore (summative analysis in 1919), and standard methods based on Schorger's method, e.g., TAPPI standards (Technical Association of the Pulp and Paper Industry), have been widely used for chemical analysis of woods in many countries. Thus it is generally known that wood is composed of about 50% cellulose, 20-35% of lignin, 15-25% of hemicelluloses, and variable amounts of extractives. Chemical characterization and efficient utilization of these wood components have been studied in laboratories of wood chemistry and technology in universities and government institutions. In the last decade, biochemistry and molecular biology of microorganisms, animals, and plants have greatly progressed. At the same time wood has been recognized as a unique renewable ecomaterial produced by trees using solar energy. In addition, many desirable properties of wood and wood components as biomaterial that affects physiology and psychology in humans have recently attracted attention.
Plant molecular biology. --- Wood --- Anatomy. --- Chemistry. --- Biochemistry. --- Agriculture. --- Forestry. --- Biotechnology. --- Cell biology. --- Plant science. --- Botany. --- Biochemistry, general. --- Cell Biology. --- Plant Sciences. --- Botanical science --- Phytobiology --- Phytography --- Phytology --- Plant biology --- Plant science --- Biology --- Natural history --- Plants --- Cell biology --- Cellular biology --- Cells --- Chemical engineering --- Genetic engineering --- Forest land --- Forest lands --- Forest planting --- Forest production --- Forest sciences --- Forestation --- Forested lands --- Forestland --- Forestlands --- Forestry --- Forestry industry --- Forestry sciences --- Land, Forest --- Lands, Forest --- Silviculture --- Sylviculture --- Woodlands --- Woods (Forests) --- Agriculture --- Natural resources --- Afforestation --- Arboriculture --- Logging --- Timber --- Tree crops --- Trees --- Farming --- Husbandry --- Industrial arts --- Life sciences --- Food supply --- Land use, Rural --- Biological chemistry --- Chemical composition of organisms --- Organisms --- Physiological chemistry --- Chemistry --- Medical sciences --- Composition --- Floristic botany --- Plant anatomy --- Molecular phytobiology --- Phytobiology, Molecular --- Botany --- Molecular biology --- Agricultural chemistry --- Botanical chemistry --- Cellulose --- Chemistry, Technical --- Lignin --- Wood distillation --- Figure --- Analysis --- WOOD --- WOOD ANATOMY --- WOODY PLANTS --- GENOMES --- PROTEIN SYNTHESIS --- GENE EXPRESSION --- BIOCHEMISTRY --- MOLECULAR BIOLOGY --- METABOLISM --- BIOSYNTHESIS --- BIOLOGICAL DEVELOPMENT
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