Georgia State University Library‚ a primary source are the documents or artifacts closest to the topic of investigation. Primary sources also include first-hand accounts that were later documented. These documents or artifacts are generally made during the time being investigated. However‚ they can be made later by eyewitnesses or people who were involved. Primary sources are typically found in their original state though. Examples of a primary sources include diaries‚ autobiographies‚ newspapers
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Essential Nutrients An essential nutrient is a nutrient required for normal body functioning that either cannot be synthesized by the body at all‚ or cannot be synthesized in amounts adequate for good health (e.g. niacin‚ choline)‚ and thus must be obtained from a dietary source. Essential nutrients are also defined by the collective physiological evidence for their importance in the diet‚ as represented in e.g. US government approved tables for Dietary Reference Intake. These are the six essential
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EXPERIMENT TO STUDY THE EFFECT OF A FACTOR AFFECTING VITAMIN C IN FRUIT JUICES WHAT IS THE EFFECT OF TEMPERATURE ON VITAMIN C IN FRUIT JUICES? The purpose of this experiment is to determine if the difference in temperature will damage vitamin C in any type of fruit juices. Five different temperatures of fruit juices will be used(5‚ 22‚ 50‚ 70‚ 90) degree Celsius to see how temperature affects the loss of vitamin C in fruit juices. The amount of vitamin C in the fruit juices will then be recorded to
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disease young children are at risk for is rickets. Rickets is caused by a vitamin D‚ calcium‚ and phosphorus deficiency. Rickets is the softening and weakening of the bones in children. Skeletal deformities and fractures can occur because the bones are so soft and weak. Rickets is seen during periods of rapid growth because during growth a great deal of vitamin D‚ phosphorus‚ and calcium are needed. “The predominant cause is a vitamin D deficiency‚ but lack of adequate calcium in the diet may also lead
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Title: Quantitative analysis of vitamin C contained in ribena Aim: to determine the amount of Vitamin C in a sample of ribena Materials: * Vitamin C (ascorbic acid‚ C6H8O6) * 4% potassium iodide (KI) * 1M acetic acid (CH3COOH) * N-bromosuccinimide (NBS‚ C4H4BrNO2) Apparatus: * Conical flask * 100 ml volumetric flask * Weighing bottle * Analytical weight balance * Spatula * Funnel Results: Item: | Mass in grams | Mass of weighing bottle with ascorbic
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Vitamin Name Deficiency effects’ Vitamin B1 thiamine Deficiency causes beriberi. Symptoms of this disease of the nervous system include weight loss‚ emotional disturbances‚ Wernicke’s encephalopathy (impaired sensory perception)‚ weakness and pain in the limbs‚ periods of irregular heartbeat‚ and edema (swelling of bodily tissues). Heart failure and death may occur in advanced cases. Chronic thiamine deficiency can also cause Korsakoff’s syndrome‚ an irreversible psychosis characterized by amnesia
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potential of vitamin C to prevent and cure diseases such as cancer‚ flu and cold by using high amounts of vitamin C. First of all‚ Vitamin C‚ also known as ascorbic acid‚ is a molecule with complex characteristics despite its simple structure. It is an “elusive vitamin‚ very variable in concentration even in food groups (fruits and vegetables) that are recognised as good sources of the vitamin‚ very soluble in water and very sensitive to alkali‚ oxidation and heat” (Nobile & Woodhill‚ Vitamin C : the
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stability of Vitamin C in Fruit Juice Subtile: Effect of Temperature towards concentration of Vitamin C in Orange Juice Members of the group: Name Identification number Index Number Chan Chyi Yong 950818-08-6787 SA2051/1001 Choong Jian Wen 950620-08-5279 SA2051/1005 Liew Sin Yung 950507-08-5373 SA2051/1011 Yong Yi Xiang 950510-02-5531 SA2051/1018 Teacher Advisor: Pn Kanahambikai Date of Submit of this report: Marks: Abstract Vitamin C or ascorbic
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ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION. SHAMSUL AZRIN BIN MD. KANAFE Final Year Project Report Submitted in Partial Fulfilment of the Requirement for the Degree of Bachelor of Science (Hons.) Chemistry in the Faculty of Applied Sciences‚ Universiti Teknologi MARA. APRIL 2009 This Final Year Project Report entitled “ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION” was submitted by Shamsul Azrin Bin Md. Kanafe‚ in partial
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Biology SL Internal Assessment What is the effect of heat on vitamin C concentrated in lemon juice? Introduction: “Vitamins are complex organic substances that are needed in very small amounts for many of the essential processes carried out in the body.” 1It is estimated and supported scientifically that only a few mg are filling the daily recommendation‚ which is essential for a healthy living. As most of vitamins cannot be produced by our bodies‚ we need to obtain them
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