Lab Report Info

Lab Report turn 6. 1 Perform benedicts visitation for trigger-happyucing sugars. Introduction benedicks studys whollyows for the detection of the presence of reducing sugars. totally monosaccharides ar reducing sugars since all of them set about active carbonyl root. Some disaccharides that are exposed to a carbonyl group are also reducing sugars scarcely less reactive than monosaccharides. By meld the sugar solving with Benedicts resoluteness and heating them, a redox reaction will occur.The copper (II) sulfate present in Benedicts solution reacts with electrons from aldehyde or ketose group of reducing sugars to form cuprous oxide, a red brown precipitate. Materials The materials used in run to detect starches was test tubes, distilled piddle, Benedicts solution, starch were used. Negative Control H20 optimistic Control Starch Obtain night club test tubes and number them 1-9 Add to distributively tube the materials to be tested. Add 2ml of Benedicts solution to each tube.Place all the tubes in boiling water- cleanse for 3 minutes and observe color mixtures during this time. afterward 3 minutes , remove the tubes from the water- bath and give the tubes ample time to still to room temperature. Record the color of their contents. Procedure 6. 2 Perform the iodine test for starch Tube Solution Benedicts colouration Reaction iodin Color Reaction 1 10 drops onion succus No qualify Blue-Black w/white No limiting 2 10 drops potato juice Precipitation Yellow- blue 3 10 drops sucrose solutionNo change No change 5 10 drops distilled water No change No change 6 10 drops reducing sugar solution Blue No change 7 10 drops starch solution No change Yellow- Blue 8 obscure Blue- Red Brown 9 foreign 2 Blue Brown 4 10 drops glucose solution Blue- Brown No change Tube Solution Color 1 2 ml formal albumen Green/yellow 2 2 ml honey No change 3 2ml amino caustic solution Purple 4 2ml distilled water No change 5 2ml protein solution Purple 6 Unknown neutral 7 Unknown 2 colorless