Question of the day: What products do we get from one tree?
Wood Products The value of the log increases as more is done to it! Raw log cut into lumber made into furniture, building, etc. It becomes worth more and more $$$
Sawmill Sawtimber (large trees over 12’’ in diameter) are cut into boards for construction lumber
Pulp Mill Use smaller trees, less valuable wood to make paper and cardboard.
Plywood Mill Veneer = thin layer of high quality wood, made as log is turned in a lathe Lamination = gluing thin sheets of veneer together (using an odd # of sheets & gluing them perpendicular to each other) to make plywood
Hardwood & Particle Board Plants Pressed wood chips & pressed sawdust are made into sheets for inexpensive building materials.
Wood Distillation Put wood into vat, heat at high temp. & drive off volatile vapors. Collect the vapors (separately by boiling points) & condense them to form products such as solvents (turpentine, pine oil), wood alcohol, tar, & pitch. What is left over in vat is charcoal that can be used for other purposes. Creosote: an oily substance formed in the process, used to preserve wood against insects & decay.
From a 100 foot tall tree Every Year 200 board of lumber (1’ x 1’ x 1’’) 160 square feet of wood panels 650 pounds of paper
Besides the obvious products, what other products do you think have wood?
Cellulose Derivative Products: Shampoo Asthma medication Cough remedies Fingernail Polish Food Products: Parmesan Cheese Ice Cream Salad dressing Did you know that trees were used for all these products in addition to ones we typically think of such as furniture and paper? These probably did not make your list when you wrote in your journals at the beginning of the period.
Cellulose Derivative Products You don’t need to write anything from the next three slides. Check the label on the parmesan cheese you have in your fridge at home… Ingredients: Parmesan Cheese (Pasteurized Part - Skim Milk, Salt, Less than (2%) of Enzymes, Cheese Culture, Cellulose Powder to Prevent Caking, Potassium Sorbate to Protect Flavor), Aged 6 Months
Cellulose Derivative Products Check the label on the ice cream you have in your freezer at home… Ingredients: Milk, Strawberry Swirl (Corn Syrup, Strawberry Puree, High Fructose Corn Syrup, Sugar, Water, Tapioca Starch, Citric Acid, Salt, Xanthan Gum, Guar Gum, Locust Bean Gum, Red 40, Natural Flavor), Cheesecake Pieces [Sugar, Wheat Flour, Cream Cheese (Milk, Cream, Cheese Culture, Salt, Carob Bean Gum, Guar Gum, Sodium Phosphate), Shortening (Partially Hydrogenated Soybean & Cottonseed Oils), Pasteurized Eggs, Cellulose, Soybean Oil, Modified Corn Starch, Pectin, Natural Flavors, Salt, Xanthan Gum], Sugar, Corn Syrup, Nonfat Milk, Whey, Cream, Maltodextrin, Cellulose Gel, Polydextrose, Calcium Carbonate, Propylene Glycol Monoesters, Guar Gum, Mono & Diglycerides, Cellulose Gum, Polysorbate 80, Carrageenan, Artificial Flavor, Vitamin A, Vitamin D3.
Cellulose Derivative Products Check the label on the salad dressing you have in your fridge at home… Ingredients: Triple Filtered Purified Water, Apple Cider Vinegar, White Vinegar, Dijon Mustard, Cellulose Gel, Salt, Imitation Bacon Bits, Natural, Flavors, Natural Herbs and Spices, Xanthan Gum, Propylene Glycol Alginate, Sodium Benzoate (to Preserve Freshness), Food Color, Sucralose.
Tonight’s HW Go through your cabinets or refrigerator, look at the labels and identify three products that have a wood derivative in it. Write them down to bring to class tomorrow.