Title: Investigation of action of saliva and hydrochloric acid in two carbohydrate solutions. Objective: To determine the action of amylase and hydrochloric acid in two carbohydrates solutions Apparatus and equipments: 1. Boiling tube 2. Metal test tube racks 3. Beaker 4. Graduated plastic dropper 5. Water bath‚ ~37ᵒC 6. Water bath‚ ~95ᵒC Materials: 1. Carbohydrate solution A 2. Carbohydrate solution B 3. Benedict’s solution 4. 3M Hydrochloric acid 5. 3M Sodium hydroxide Procedures: 1. Two
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the industry as well as the SWOT analysis of the industry. Summary The market research report titled Maize (Corn) Products in India (Starch‚ Glucose‚ Dextrose‚ Sorbitol) Trends‚ Opportunities‚ Market Analysis and Forecasts (Upto 2017)’ released by Niir Project Consultancy Services‚ provides a comprehensive analysis on Indian maize products industry. Starch‚ Glucose‚ Dextrose and Sorbitol are maize products covered in this report. The report starts with a brief on the global scenario of maize
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Rubber bands * 50mL beaker * Iodine/potassium iodine solution * 5% starch solution Method: 1) Fill the gas jar to 3 quarters full with water. Add iodine solution until the water is quite yellow/brown. 2) Moisten the cellulose tubing and tie a knot at 1 end. At the other end insert the stem of the thistle funnel & fasten it firmly with a rubber band. 3) Fill the cellulose tubing with starch solution until it rises 2-3cm up the stem of the funnel. Dislodge any air bubbles
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positive test results are Benedict’s test: orange to brick red Tollen’s test: metallic silver Starch iodine test: blue-black 3. Identify each of the samples in Part 1 as monosaccharide‚ disaccharide or polysaccharide. Water = not a saccharide Glucose = monosaccharide Fructose = monosaccharide Galactose = monosaccharide Sucrose = disaccharide Lactose = disaccharide Starch = polysaccharide Honey = primarily monosaccharides with some disaccharide Saccharine = not a saccharide
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Investigating the Biomolecules found in Gelatin Abstract: For this inquiry lab‚ the research team tested the gelatin solution for the presence of biomolecules. The team searched for the presence of starch‚ glucose‚ lipids‚ and proteins through the use of indicators: Sudan III‚ Lugol’s iodine‚ Benedict’s solution‚ and Biuret’s reagent. After testing the gelatin solution in the presence of the indicators‚ the results showed that Lugol’s reacted‚ turning orange-pink (oils) and the Biuret reagent (protein)
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contain starch‚ glycogen‚ reducing sugars or proteins. The four major biological macromolecules are carbohydrates‚ lipids‚ proteins and nucleic acids. Abundant elements in the world such as carbon and nitrogen bond in different ways to form many different molecules. The functional groups are what determine their characteristics. During the experiment‚ there will be 3 test. The iodine test is completed to test for starch and glycogen. When iodine is mixed with a solution that contains starch‚ the amylose
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macromolecules which are carbohydrates‚ lipids‚ nucleic acids and proteins in given samples. The first experiment is to test the existence of carbohydrates in starch suspension and potato cell. If carbohydrate is present in starch suspension‚ the solution will turn into dark blue when iodine solution is added. If carbohydrate is present in potato cell‚ starch granules can be seen clearly under microscope when iodine solution is added. The second experiment is to test the existence of lipids in margarine and
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Test for Starch – with Iodine solution. Iodine solution is used to identify the presence of starch- a complex carbohydrate. Iodine solution (potassium iodide solution) reacts with amylase – a type of starch – whereby a blue-black polyiodide complex is formed. Method 1) Mix smalls amount of each food samples (i.e.‚ Egg lumen‚ cylindrical piece of potato tuber‚ bread crump and crisps) in different test tubes with distilled water to make a liquid test. Take another test tube with starch solution
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Determination of the presence of carbohydrates and protein in aqueous solution samples Objectives To determine the presence of starch‚ glycogen‚ reducing sugar‚ peptide‚ and proteins by utilizing Iodine test‚ Benedict test‚ and Biuret test. Introduction The purpose of this experiment was to identify the presence of macromolecules by using various positive and negative controls. The principle building blocks of living organisms are essentially constructed by carbon-containing
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of diffusion. In this case‚ a large molecule like starch‚ is dissolved in water. The starch molecule is too large to pass through the cell membrane‚ so it cannot diffuse from one side of the membrane to the other. The water molecules can‚ and do‚ pass through the membrane. Hence‚ the membrane is said to be semi-permeable‚ since it allows some molecules to pass through but not others. However‚ on the side of the membrane with the starch‚ the starch molecules interfere with the movement of the water
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