Aim: To find out which samples consists of starch/ proteins/ reducing sugar/disaccharide out of 4 given samples A‚ B‚ C and D. Research Question: Out of the four given samples which sample consists of protein/ starch/reducing sugar/ disaccharide? What color changes will help to identify the contents of each sample when treated with iodine‚ biuret agent and benedicts solution? Theory and background information: What is a protein?1 Proteins are macromolecules‚ consisting of one or more chains
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In the lab‚ three experiments were completed: the Iodine experiment‚ Benedict’s experiment and the Biuret experiment to test for starch and glycogen‚ reducing sugars and protein in the respective order. 12 solutions were given where 11 were known and the 12th was an unknown. The solutions that were supplied can be found in the results and observations section of this report. When completing such experiments‚ there are always controls used to make sure the procedure is followed and that no cross
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Bangalore-65 ABSTRCT To standardize a recipe for the preparation of sapota candy‚ the fruit was steeped in three different combinations of sugar syrup concentrations (20/30/400Brix‚ 30/40/500Brix and 40/50/600Brix) for osmotic concentration. The osmosed sapota slices were then dried at two different temperatures 55 and 600C. It was observed that candy product processed in sugar syrup combination of (30/40/500Brix) and dried at 600C was found to be best among the prepared six products by organoleptic evaluation
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Testing for reducing sugars‚ non-reducing sugars‚ starch‚ lipids and proteins in unknown substances: Our aim: was to find out which substances from our five samples have reducing sugars present to determine what they may be for example; they could be monosacchrides or disaccharides. This was carried out by using Benedict’s test. To find out which substances from our five samples were non-reducing sugars‚ since some disaccharides are reducing sugars and this would be carried out by using Benedict’s
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proteins‚ starches‚ and reducing sugars were present in the solutions we were provided with. The purpose of the lab was to allow us to have the opportunity to view the positive and negative reactions of the solutions we used‚ also to understand what that meant. The reagents we used allow us to detect whether or not there was a reducing sugar‚ starch‚ or protein present in the solutions. From what I knew previous to this experiment would be that if a substance contains a reducing sugar it will have a positive
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Experiment 2: Food Tests Objective * To study the presence of reducing sugars. * To study the presence of protein. Introduction In this experiment‚ glucose‚ maltose‚ lactose and sucrose are used for testing reducing and non-reducing sugars. Glucose is monosaccharide while maltose‚ lactose and sucrose are disaccharides of carbohydrates. Monosaccharaides are the monomers which make up all other carbohydrates and cannot be broken into smaller molecules by hydrolysis. Disaccharides are
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Determining the sugar concentration of food samples is very important especially in industries where quality control is monitored. One method to determine the sugar concentration of reducing sugars is by heating with 3‚5 dinitrosalicylic acid(DNS) which produce a red-brown product Miller(1959)The reaction is direct‚thus the method is preferred over the Benedict’s test method. The concentration of the coloured complex can be determined with the spectrophotometer at Absorbance 540.The sugar concentration
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TRIPLE SUGAR-IRON AGAR TEST Triple sugar-iron (TSI) agar test- designed to differentiate among the different groups or genera of the Enterobacteriaceae‚ which are all gram-negative bacilli capable of fermenting glucose with the production of acid a. Differentiation is made on the basis of differences in carbohydrate fermentation patterns and hydrogen sulfide production. To facilitate observation of carbohydrate utilization patterns- TSI agar slants contain lactose and sucrose (1%) concentrations
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the same or a different purpose‚ giving many of the things that would otherwise be thrown away a second life. And when it is finally time to throw something away‚ recycling makes sure that the materials used to make it are used again. What is Reducing? "Reduce" means using fewer resources in the first place. This is the most effective of the three R’s and the place to begin. It is also‚ I think‚ the hardest because it requires letting go of some very common notions‚ including: the bigger the
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and ideas about these issues to life through dramatic performances and the use of a number of various techniques. No Sugar‚ a revisionist text written by Jack Davis in 1985‚ is one of these stage dramas. Jack Davis brings issues and even expresses his own ideas about issues such as the injustices of Aboriginal treatment during the 1930’s‚ to life in No Sugar very well because No Sugar is a revisionist text‚ and therefore offers a new perspective
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