E20-1 Experiment 20 Consumer Chemistry: Vitamin C in Fruit Juices The Task The goal of this experiment is to determine the concentration of vitamin C in a range of different fruit juices (fresh and preserved) using titration and to rank these sources of vitamin C. Skills At the end of the laboratory session you should be able to: * use a pipette correctly‚ * use a pipette filler safely‚ * manipulate a burette and carry out a quantitative titration properly‚ * weigh a sample
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Name: Christopher Stephenson Grade: 5 bus sci 2 (lower six) Centre #: 100028 School: Dint hill Technical Teacher: Mr. Johnson CONTENT TITLE PAGE Topic------------------------------------------------------------------------------------------------- 3 Title--------------------------------------
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decrease the concentration of VC(ELABORATE) * Vitamin C is a reducing agent and can reduce DCPIP solution (a blue dye) to a colourless compound. The vitamin C content of the juices is measured by the amount of orange juice required to decolourize a fixed volume of DCPIP. The relative amount of vitamin C content of the juices is determined in this investigation. Independent variable | Dependent variable | Controlled variable | The three samples 1. uncooked green pepper 2. cooked green
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water. Stir thoroughly with a spoon until the gelatin is properly dissolved. 3. Place 3 ml of the designated pineapple juice into each test tube. Note: Use a separate pipette for each type of juice‚ so as to not mix juice types and result in inaccurate conclusions. • Tube 1- water only • Tube 2- fresh pineapple juice • Tube 3- canned pineapple juice • Tube 4- concentrated pineapple juice (thawed) 4. Add 10 ml of gelatin mixture to each test tube. Shake well to ensure proper mixing and place your samples
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nutritious‚ high-quality flavors. Tropicana Products are currently headquartered in Chicago‚ the home of the PepsiCo Beverages & Foods North America division. Tropicana’s main brands include the flagship Tropicana Pure Premium‚ Tropicana fruit juices and drinks‚ Tropics‚ Trop50‚ and Farmstand.(1) COMPANY ANALYSIS The Pepsi Company PepsiCo is a global food and beverage leader with net revenues of more than $65 billion and a product portfolio of hundreds of products including 22 brands that
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Heat on Vitamin C Objective: - To determine whether the concentration of Vitamin C in a fruit juice changes upon heating at a constant temperature for different periods of time. - To investigate how the trend goes (whether the concentration of Vitamin C increases or decreases) if the amount of Vitamin C does change. Theory: - Hypothesis: The concentration of Vitamin C in the fruit juice changes and decreases upon heatingat a constant temperature for increasing periods of time. - Method
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【星巴克】 | 容量 | 價格 | 咖啡因 含量均值 | 熱量 | 蛋白質 | 脂肪 | 飽和 脂肪 | 反式 脂肪 | 碳水 化合物 | 鈉 | | 毫升 | | 毫克 | 大卡 | 公克 | 公克 | 公克 | 公克 | 公克 | 毫克 | 100%綜合野莓汁Fresh Wildberry Juice | 300 ml | $80 | | 153.0 | 0.6 | 0.6 | 0.0 | 0.0 | 36.6 | 37.5 | 100%鮮榨柳丁汁Fresh Orange Juice | 300 ml | $80 | | 147.0 | 1.5 | 0.3 | 0.0 | 0.0 | 34.5 | 30.0 | 芒果鮮果昔Mango Smoothie | 300 ml | $90 | | 162 | 0.9 | 0.3 | 0.0 | 0.0 | 39 | 105.6 | 石榴綜合鮮果昔Pomegranate smoothie | 300 ml | $90 | | 174 | 0.9 | 0.3 | 0.0 | 0.0 | 42
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started giving sailors lime juice to prevent scurvy on long voyages in 1795. Vitamin C is found in high levels in foods such as oranges‚ limes‚ lemons‚ blackcurrants‚ parsley and capsicums. Vitamin C is water soluble and is therefore not stored or synthesized in the body‚ thus a daily supply is required. It breaks down‚ and is no longer effective due to factors such as extreme temperatures or storage for more than a few days. Aim To investigate the effect of temperature of juice on the content of Vitamin
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Introduction Frutika Juice is the juice brand of AFBL‚ recently introduced juice in the prevalent Bangladesh market. From the lunching of the product Frutika Juice has come up with novelty promotional campaign in order to grab the market share. It also tried to make available the product in the market through their effective distribution channel. The history of Akij Group stretches back to later part of the forties. In its infancy‚ the Group started in humble way with jute trading which was
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latex‚ a sticky juice. Preparation. The fruits should be sweet enough; otherwise‚ add cane sugar to the ingredients. Make sure the fruits are ripe and free from bruises and diseases. Wash the fruit very well and peel if necessary. Crush or mash to extract the juice. Use a fruit press or crush by hand and then strain the juice through a strong piece of cheesecloth. Add water twice the a month of the extracted juice‚ then add sugar if necessary. Pasteurization. Pasteurize the juice using the double
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