"E Number" Essays and Research Papers

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E Number

9/29/05 © 2005 Exploratorium, www.exploratorium.edu 1 Don Rathjen....Exploratorium Teacher Institute....3601 Lyon St., San Francisco, CA 94123...donr@exploratorium.edu METHOD 3 Students receive liquids in containers labeled A, B, C, D and E. Neither the identity or density of any of the materials is given. Students also receive a copy of the Data Table below (or have them draw their own if desired). This is what students will fill in as they experiment. (NOTE FOR TEACHERS: In addition to...

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Food Dyes

bodies have different views on food color safety. In the United States, FD&C numbers (which indicate that the FDA has approved the colorant for use in foods, drugs and cosmetics) are given to approved synthetic food dyes that do not exist in nature, while in the European Union, E numbers are used for all additives, both synthetic and natural, that are approved in food applications. The food colors are known by E numbers that begin with a 1, such as E100 (turmeric) or E161b (lutein).[5] Most other...

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Carmoisine Lab Report

Carmoisine was certified by FDA and labeled as food colorant. Carmoisine was obtained from Millennium Chemical Company (Dhaka, Bangladesh), which was manufactured by Sun Food Tech., (Rajasthan, India). Fig. 1. Molecular structure of carmoisine (disodium (E)-4-hydroxy-3-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate) 2.2. Test animals Specific pathogen free male swiss albino mice approximately 5 weeks old were purchased in good health from icddr’B, Mohakhali, Bangladesh and acclimated for...

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Food Additives

regarding food safety and animal testing remain high.7 Consuming food additives for a long period of time is constantly attacking the organs that will lead to the destruction of the immune system. All around the world it has been reported that the number of victims of cancer is increasing. One of the major causes of this is food additives. This is because of the developing world, where food additives are constantly being used. However, humans do not realize the hazardous effects. It is proven to be...

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Genetically Modified Organisms GMO foods

world population has topped 6 billion people and is predicted to double in the next 50 years. Ensuring an adequate food supply for this booming population is going to be a major challenge in the years to come. GM foods promise to meet this need in a number of ways: Pest Resistance: Crop losses from insect pests can be staggering, resulting in devastating financial loss for farmers and starvation in developing countries. Farmers typically use many tons of chemical pesticides annually. Consumers do...

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Tlc Lab

PAPER AND THIN-LAYER CHROMATOGRAPHY Lab 47 Michael Stravino, CHM 2211L, June 3, 2012 Abstract Thin-Layer Chromatography and Paper Chromatography can be used to identify identical compounds, unknown compounds, the number of components in a mixture, as well as other important uses not explored in this laboratory. This experiment explores these techniques to identify an unknown amino acid by TLC and analyze food colors using paper chromatography. By using 2.0 mL of dimethoxyethane and 18 mL of...

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Salts in daily life

SALTS EVERYDAY First some words about salts in chemistry. Salts are ionic compounds that can result from the neutralization reaction of an acid and a base. They are composed of related numbers of cations (positively charged ions) and anions (negative ions) so that the product is electrically neutral (without a net charge). Salts can appear to be clear and transparent (sodium chloride), opaque, and even metallic and lustrous (iron disulfide). In many cases the apparent opacity or transparency are...

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Lab Paq-Lab Two Chromatography of Food Dyes

starting point to the highest point of the column. In one other case Blue 1 the colored line starts at some random point 11mm over the start point but that could be an effect of a mistake or something. During calculating the RF you can see that this number moves between zero and one because it obviously can’t be higher than that but later more about that. Another problem I see is that there is no color for the blue, green and yellow M&Ms and I couldn’t figure out what I did wrong because even after...

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Food Additives and Childhood Behaviour

based and much more synthetic. A study of 277 three year old children over a period of a month regarding the possible link between dangerous food additives and colours to abnormal behaviours in children. (Caryl, Email, accessed 5th Sept 2012). A number of additives such as Annatto, anisyl formate, a-ionone & ethyl heptanoat which all have been related to other behavioural problems like, irritability, hyperactivity, sleeplessness, defiance and hysteria. These additives are most commonly found...

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Paper Chromatography

two or more spots were a mixture of dyes. Data Page A- (1component) blue R f= 48mm/89mm = 0.539 B- (1 component) yellow Rf = 29mm/89mm = 0.325 C- ( 1 component) pink Rf= 65mm/89mm = 0.730 D- (1component) red Rf= 26mm/89mm= 0.292 E- (1component) yellow Rf= 14mm/89mm= 0.157 F- ( 1component) orange Rf= 22mm/89mm= 0.247 G- (2 components) yellow, orange Rf= 15mm/89mm= 0.168 Rf= 24mm/89mm= 0.269 H- (1 component ) red Rf= 30mm/89mm= 0.337 I- (2 components) red, yellow ...

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