Separation of Casein from Milk

I. Title: Date: November 8, 2012 Name: Di Jin Section:Thursday II. employment: To attach the protein casein from a sample of draw and to depend the region of casein in take out, which is the pur set about of this experiment. III. Materials & equipment: - take out - Water - 30 mL 95% ethanol - 15 drops Glacial acetic acid - 100 mL graduated cylinder - 125 mL Erlenmeyer flask - Bakers (50 mL and cd mL) - Electronic balance - Thermometer - piece cups - Cheese cloth - preventative band - Buchner carrying appliance: ring stand, utility clamp, filter paper, vacuity flask, buchner funnel, rubber hose, neoprene adapters(one small and one large). - Heating apparatus: etna burner, ring stand, ring support, wire gauze, burette clamp IV. surgical procedure: Weigh a flask on an electronic balance. oral sex data. Using a 100 mL graduated cylinder, vizor 80 mL milk, hence pour the 80 mL milk into the fla sk and weigh it again. Record data. 2. Set up the heating apparatus: A ring stand is positioned a few inches higher on the stand from the bunsen burner which is resolved at the base of the ring stand. The wire gauze is pose on the ring support. Clamping the thermometer above the beaker by using a burette clamp. 3. Using the distilled water to fill 1/3 of a 400 mL beaker. arrogate the flask with milk in the beaker which is filled with water, and place it on the wire gauze. throw off the thermometer into the milk(under the milk). Turn on the Bunsen burner and warm the milk stretching to 50~60 degrees Celsius. 4. The milk was taken out from the water, hence 15~20 drops glacial acetic acid were added. The milk was stirred with a stirring rod (every five drops were observed) until a white solid has formed. 5. Put cheesecloth on the top of 50 mL beaker, also using a rubberband to tie it. Separating the horizontal and solid when the mixture was poured through the ch eesecloth to beaker . From the process, the ! excess liquid hold off to be poured out. 6....If you want to get a full essay, announce it on our website: BestEssayCheap.com

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