Determination of Total Carbohydrateby Anthrone Method Carbohydrates are the important components of storage and structural materials in the plants.They exist as free sugars and polysaccharides. The basic units of carbohydrates are themonosaccharides which cannot be split by hydrolysis into more simpler sugars. The carbohy-drate content can be measured by hydrolysing the polysaccharides into simple sugars by acidhydrolysis and estimating the resultant monosaccharides. PRINCIPLE Carbohydrates are
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LAB 2 1.Identify the functional group or molecule for each of the following. (3 points) a.COOH temp b.COH temp c.COH temp 2.List whether each of the following substances was positive or negative for reducing sugar‚ as indicated by the Benedict’s test. (6 points) a.corn syrup (1 point) b.table sugar (1 point) c.unknown 1 (1 point) d.unknown 2 (1 point) e.unknown 3 (1 point) f.unknown 4 (1 point) 3.List whether each of the following substances was positive or negative for starch‚ as
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MONOSACCHARIDES AND DISACCHARIDES Section 1 Relative solubility of Glucose and Galactose Result of the experiment: | |Weight of the |The weight of |Water added (g)|Weight of the |The weight of the|Amount of the |The saturation | | |beaker (g) |the beaker | |magnetic bar |beaker and |sugar added (mg)|points of the | | | |together with | |(g) |magnetic
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Brown sugar‚ white sugar‚ raw sugar (unrefined) sugar cubes... there are so many types of sugar that you do not know what to choose. Learn the difference between refined and unrefined sugar! Experts warn that sugar contribute to some of the worst diseases: cancer‚ cardiovascular disease and diabetes. Therefore‚ you should watch out for the daily consumption of sugar and choose the least harmful alternative for your health. What is considered moderate consumption of sugar? * 8 teaspoons maximum
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Name: Nyam Poh Ye Partner’s name: Liew Teck Seng Class: P1 Date of lab class: Thursday‚ 7-2-2013 Program: Foundation In Science Unit code: FHSC 1214 Unit description: Fundamentals of Cell Biology Year and trimester of study: 2013‚ trimester 1 Title of lab report: Practical 2 Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Lecturer’s name: Mr. Paul Davidson Discussion
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Lab Report Procedure 6.1: Perform Benedict’s test for reducing sugars. Introduction: Benedict’s tests allows for the detection of the presence of reducing sugars. All monosaccharides are reducing sugars since all of them have active carbonyl group. Some disaccharides that are exposed to a carbonyl group are also reducing sugars but less reactive than monosaccharides. By mixing the sugar solution with Benedict’s solution and heating them‚ a redox reaction will occur. The copper (II) sulphate
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Lab Report Experiment #3 Chemical Aspects of Life The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it‚ there would be a color change if a reducing sugar is present‚ or it will remain blue (no reducing sugar). The objective of the Starch test was to test for starch in substances by using Iodine. The iodine will cause a substance to turn to a dark blue color if it is positive for starch. The objective for
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General Biology I Lab (Bio 104) CRITICAL THINKING ACTIVITY I – Diffusion/Osmosis Name: Tonya Finch What are the 2 tests substances? 1. Potato starch 2. Sugar Water 3. Why did a color change occur in the jar water? Because IKI was added to give it an amber color (gold color). It iodine solution and this caused the color change. 4. What does the color change in #3 indicate? Water and IKI was in jar and the iodine caused the color change of the water. 5. Why did a color change
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Fermented foods are made by the partial oxidation of sugars‚ or sometimes other organic molecules‚ in a food product. The difference between this and the normal cellular respiration is that the electron donor from the electron transport chain is an organic compound rather than oxygen. One challenge for producing fermented foods is the pH levels of the food. Bacteria have different optimal pH levels. Therefore‚ as pH changes due to fermentation different bacteria will begin to ferment the food. For
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The purpose of this experiment was to investigate the effect of brown sugar on the amount of CO2. To do this‚ white sugar was replaced with brown sugar and the amount of CO2 produced was calculated with a vernier gas pressure sensor. The control group was yeast and white sugar and the experimental group was yeast and brown sugar. The hypothesis that if brown sugar and yeast are mixed‚ then it will produce more CO2 than a mixture of white granulated sugar and yeast was accepted. The white sugar and
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