Separation of Casein from Milk

I. Title: Date: November 8, 2012 Name: Di Jin Section:Thursday II. intent: To attach the protein casein from a sample of draw and to see the region of casein in take out, which is the pur stick by of this experiment. III. Materials & equipment: - take out - Water - 30 mL 95% ethanol - 15 drops Glacial acetic acid - 100 mL gradatory cylinder - 125 mL Erlenmeyer flask - Bakers (50 mL and cd mL) - Electronic balance - Thermometer - piece cups - Cheese cloth - condom band - Buchner carrying appliance: ring stand, utility clamp, filter paper, mindlessness flask, buchner funnel, rubber hose, neoprene adapters(one small and one large). - Heating apparatus: bunsen burner burner, ring stand, ring support, wire gauze, burette clamp IV. surgical procedure: Weigh a flask on an electronic balance. level data. Using a 100 mL graduated cylinder, neb 80 mL draw, hence pour the 80 mL milk into the flask a nd 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 heady 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. limit the thermometer into the milk(under the milk). Turn on the Bunsen burner and warm the milk stretchability to 50~60 degrees Celsius. 4. The m ilk was taken out from the water, and then ! 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 naiant and solid when the mixture was poured through the cheesecloth to beaker . From the process, the excess liquid ingest to be poured out. 6....If you want to get a full essay, aver it on our website: OrderCustomPaper.com

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