in neutral pH. To do this the experiment was carried out so that tubes containing a reaction solution of the Amylase enzyme and starch were simultaneously mixed. The reactions were then introduced to I2-KI‚ which stopped the reactions‚ at two minute intervals. Each of these trials was repeated three times to ensure proper accuracy. After concluding the reactions they were placed into a spectrophotometer (A580) for analysis. Graphing the values of the absorbance to time for each pH it was found
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Enzymes lower the activation energy of chemical reactions but they themselves are not consumed or altered when doing so. These catalysts work best at optimum temperatures and pH’s. The temperature and pH at which the reaction occurs the quickest is the ideal condition for the enzymatic reaction. Alpha amylase converts starch into glucose and when starch is combined with I2KI indicator a dark purple solution forms. As the enzyme breaks down the starch the absorbency will decrease. The absorbency
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Abstract: This lab tests how temperature and pH affect how enzymes will function. The lab showed that temperature will denature an enzyme when past its optimal working temperature and won’t denature in cold temperatures‚ but have slowed molecular activity. pH will also have an affect on an enzymes efficiency‚ when out of optimal pH the enzyme will not function as it is supposed to and if to far out of the optimal pH the enzyme will change shape and no longer work. Enzymes also showed to be reusable
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Investigating the vitamin C content of fruit juices Vitamin C (ascorbic acid) is a water-soluble nutrient which is found in certain foods. It acts as an antioxidant (inhibits oxidation) in the body‚ helping to protect cells from the damage caused by free radicals. The body requires vitamin C in order to make collagen‚ a protein essential to help wounds heal. Vitamin C also improves the absorption of iron from plant-based foods and helps the immune system work properly to protect the body from disease
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A COMPARATIVE STUDY ON CONSUMPTION PATTERNS OF SOFT DRINKS AND FRUIT JUICES EXECUTIVE SUMMARY Soft Drinks were common preference among all the individuals before juices were being introduced‚ With the changing lifestyle and income levels‚ people are shifting their consumption patterns and have therefore become more health conscious thus leading to increase in demand of juices. Market Research is based on some underlying parameters like: • Changing consumption pattern • Health factor • Status
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teeth for the experiment‚ we are using egg shells. Many beverages are really bad for your teeth and we want to see which ones are the worst and the best. For this project‚ the type of beverages we will be using are Pepsi‚ Coca Cola‚ tea‚ coffee‚ grape juice‚ and sports drinks. Tea has many great health bonuses ‚ but is bad for your teeth. The tea color or type depends on how stained your teeth will be. With lighter colors being not so bad and dark colors staining worse. Tannins are substances found
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Biochem. J. (1995) 305‚ 17-20 (Printed in Great Britain) 17 RESEARCH COMMUNICATION The effect of low temperatures Nicole MORE‚ Roy M. DANIEL* and Helen H. PETACH on enzyme activity Thermophile Research Unit‚ University of Waikato‚ Private Bag 3105‚ Hamilton 2001‚ New Zealand The stability of two enzymes from extreme thermophiles (glutamate dehydrogenase from Thermococcales strain ANI and f‚- enzymes‚ glucosidase from Caldocellum saccharolyticum expressed in Escherichia
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Does the PH level of acids in our stomach affect the digestion proteins? Yes‚ if the acidity in my/a stomach is high in terms of the PH balance then the proteins in our stomach will be digested faster because acids are known to breakdown and eat away at many objects. The purpose of this project was to observe how the digestion of protein varies at different pH levels. This project in my eyes helps society by finding the best types of food (i.e. ones with higher/ lower acidity and pH balance)
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determining the effects of pH on enzyme activity show that as the independent variable‚ pH‚ increases the dependent variable‚ percentage transmission‚ decreases. This is shown in the results as at the lowest pH‚ pH 4.0 the average percentage transmission is at its highest at 97%. At the highest pH‚ pH 8.0 the average transmission is 78.5%. This is also supported from the graph as it produces a negative gradient showing that as the percentage transmission will decrease with an increasing pH. This happens because
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Business Report – Sunshine Fruit Juice Sunshine Fruit Juices employs 100 people in its Queensland factory and supplies juice to large supermarket chains in Asia and North America. Customers have recently complained that the product has been damaged and bottles have been wrongly labelled. An increase in industrial disputes has also occurred due to a number of recent workplace accidents and demands from employees for higher wages. You have been employed by Sunshine Fruit Juices to prepare a report for management
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