The structural features of carbohydrates account for the fact that a wide variety of polysaccharides exist is pentoses and hexoses. The examples of pentose are ribose‚ deoxyribose‚ ribulose and xylulose. The examples of hexose are glucose which is found in fruits‚ fructose which is found in milk and galactose which is found in honey. Both pentoses and hexoses are mostly found in monosaccharides. They are the most simplest sugar which cannot be futher hydrolysed into smaller units. They contain
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increases appetite (10). The long-term effects of artificial sweeteners on food intake and body weight are less clear. Although some investigators report weight gain in animals given artificial sweeteners to eat or drink (1 1-13)‚ the majority reports no effects (11‚ 14-17). What little work has been done in humans does little to answer the question. Two correlative comparisons ofusers and nonusers of artificial sweeteners showed that the sweeteners had no effect on body weight (18‚ 19). In contrast‚ an
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Undergraduate Questions (50 Pts) 1. (4 pts) A chemist working in a pharmaceutical lab synthesized a new drug as a racemic mixture. Why is it important that she separates the two enantiomers and test each for its biological activity? 2. (6 pts) Phosphoric acid (H3PO4) has three dissociable protons‚ with the pKa’s shown below. Which form of phosphoric acid predominates in a solution at pH 4? Explain your answer. Acid pKa H3PO4 2.14
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are called artificial sweeteners. Inside the family of the sweeteners there are high-calorie ones like sugar or honey‚ but the low calorie ones are the artificial sweeteners mostly associated with diet products. These artificial sweeteners are what people consume today as a substitute to regular sugar (sucrose). According to an article by Greg Hodgin‚ The three major artificial sweeteners are saccharin‚ aspartame‚ and acesulfame potassium (K). The fist artificial sweetener discover was saccharin
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Nutrition‚ Health‚ and Wellness SCI1288 Lori Gaik September 12‚ 2013 Week 2-Sweetner I have chosen Stevia to research. It is a natural sweetener that is has been in use for centuries by Guarani Indians and hundreds of years by South Americans. But it has only been since 2008 that the FDA has allowed it as a food additive. As well as granting it Generally Recognized as Safe (GRAS) status to Rebaudioside A‚ a chemical that makes it sweet. Before this it was only seen as a dietary supplement
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Sugar vs. Sweeteners- What is the difference? Introduction: Here on forth‚ most people have sweet tooth. Most people like to sweeten up ’ their beverages‚ foods or even baked goods. Since the major companies knows that the human taste buds crave for sweetness‚ manufacturers then start to add sugar or artificial sweeteners in the foods that we eat today. That being said‚ there are many differences between sugars and artificial sweeteners: so‚ which is better for us? Some may say natural and
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Topic: Artificial Sweeteners Artificial sweeteners are chemicals or natural compounds that replace the sweetness of sugar‚ without all of the calories. But sometimes the label ’sugar-free’ masks calories present in the food or drink. Aspartame‚ which is in Equal is a common chemical sweetener with crazy possible side effects. Effects include hallucinations to seizures and brain tumors; it is hardly worth consuming for the sake of saved calories in my opinion. Then you also have Sucralose‚ which
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Carbohydrate Loading There are many threats to an athlete during physical endurance competition whether it is a marathon or the decathlon. The most common forms of these threats include hypoglycaemia‚ fatigue‚ and loss of morale (which is usually caused by hypoglycaemia and fatigue). There is one connection that can be made between these threats and that is that all are caused one way or another through the lack of carbohydrates (Peterson). The most common way to combat these threats
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Carbon‚ Hydrogen and Oxygen. These three simple elements make up one of the most useful substances for many living organisms: Carbohydrates. Carbohydrates are used for numerous processes in organisms from acting in important roles of cellular recognition in the human body to storing chemical energy in plants in the form or starch. The roles of carbohydrates in the human body alone are numerous; providing energy for working muscles‚ providing energy for the regulation of blood glucose‚ preventing
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The Use of Sweeteners and the Rise in Obesity I have selected to discuss the relationship of the sweetener sugar (sucrose) between its consumption and the rise in obesity. There is a problem with the increase in sugar consumption. Sugar both drives fat storage and makes the brain think it is hungry‚ setting up a “vicious cycle‚” according Robert Lustig‚ MD‚ a UCSF pediatric neuroendocrinologist. Obesity is one of the top underlying preventable causes of death in the U.S. The rise of obesity
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