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WHICH PART OF AN EGG HAS MORE PROTEIN?
Member rating: No Rating | Words: 734 | Submitted: Sun Mar 30 2008
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WHICH PART OF AN EGG HAS MORE PROTEIN? Apparatus: * 1cm³ of chicken meat * Small portion of silica sand * Sodium hydroxide (NaOH) * Copper sulphate (CuSO4) * Water * Bunsen burner equipment (tripod + heatproof mat + gauze) * Spatula * Stirring rod * Filter paper * Funnel * Conical flask * Mortar * Pestle * Boiling tubes * Beakers (glass for heating + plastic for chemicals) Method: 1. The 1cm³ of chicken meat was crushed in the mortar with the aid of the pestle. 2. One spatula of silica sand was added to enable more efficient crushing. 3. A solution was made by adding 5ml of water. 4. The sample of protein was then hydrolyzed with 5ml of sodium hydroxide (NaOH). 5. The solution was poured into a boiling tube, which was left for 10-15 minutes in a water bath (until the water reached 100°C - boiling point). 6. Once the heated solution was taken out of the beaker, another 5ml of water was added so that the chicken didn't...
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