Abstract Ascorbic acid solutions, were either exposed to concentrated U V light or air or stored at different temperature were used to study stability of ascorbic acid using titrimetric analytical method with 2,6-dichlorophenolindophenol. Results of analysis showed that, exposure to air and storage temperature condition significantly affected the stability of the vitamin. A significant negative correlation exists between ascorbic acid decline and time of storage and of exposure to air. Ascorbic acid
Experiment was to illustrate that some chemicals can be identified or differentiated by simple chemical tests, such as solubility, pH, or color tests. In our group we had to test come common powders such as Alka-Seltzer, baking soda, flour, Vitamin C (ascorbic acid), and salt. Other chemicals that were used to do this experiment were vinegar, and Iodine 2 Solution. The equipment used to do this experiment was red litmus paper, and 5 test tubes per group. After all materials were gathered, we then had
Title: Estimation of Ascorbic acid Aim: To determine the ascorbic acid content of canned apple and orange juice To determine the volume of canned juice necessary to provide 75mg of Vitamin C Introduction: For the estimation of ascorbic acid, the method used involved the titration of the ascorbic acid, in the presence of a redox indicator 2,6-dichlorophenol-indophenol (DCPIP) which acts as both an oxidant so as to oxidise the ascorbic acid to dehydroascorbic acid, and it acts as an indicator
Flawless skin is all the rage these days and rightfully so but dark spots can form and detract from our beauty. Hyperpigmentation, as it’s technically referred to, can happen to any skin type, manifest in any size, shape, shade or quantity. It’s defined as the build up of melanin, the pigment responsible for your skin’s color. What causes dark spots anyway? Dark spots can appear for a number of reasons, here are some common ones: Sun Exposure A little sun a day is in fact good for the skin but
the body. (Webster’ s New World College Dictionary, 4th Edition) We often obtain the substantial amount of Vitamin C through our diets since the body is unstable to synthesize and actually produce Vitamin C on its own. Vitamin C also known as Ascorbic acid is a colorless, crystalline, water-soluble vitamin, found in many foods especially citrus fruits, vegetables, and rose hips; its required for proper nutrition and metabolism, and a deficiency produces scurvy. (Webster’s New World College Dictionary
Look around your community and look; most people are living unhealthy tonic lives. Common diseases like diabetes, obesity and cancer are more prevalent than they were in the past by an astoundingly large amount. Any thinking person must ask themselves are they getting the most of life? Although people may attain riches, fame, and honor all of it is like garbage if you’re unhealthy. You cannot buy health and happiness. Even if someone is very successful it doesn’t mean that this person is happy
The book, Anatomy of an Illness, by Norman Cousins is a story of his self-prescribed treatment to his collagen illness; ankylosing spondylitis which causes the breakdown of the connective tissue in the spine. Norman was a member of the New York Evening Post, Current History, and a staff member of the Saturday Review of Literature. After suffering horrible reactions to the drugs he was given, Norman was determined to find an alternative to heal his body and took matters in his own hands upon approval
scaber using different solvents to extract were evaluated for antioxidant activity by using DPPH method using a different concentrations (1, 10, 20, 30, 40, 60, 80, 100) μg/ml. The results of this method was compared with ascorbic acid as standard. The IC50 value of standard (ascorbic acid) was found to be 20 mg/ml. This study showed the strongest DPPH radical-scavenging activity of (52.54±0.81)% inhibition at concentration of 40 mg/ml, and IC50 value was 30 mg/ml was found the scavenging activity of (44
Title: Analysis of the differences of percentage of vitamin C (ascorbic acid ) between the fresh orange juice and artificial orange juice (Sunkist). Problem statement : Does have different types of fruit juice contain similar amount of vitamin c ? Objevtive: To analyse the concentration and percentage of different food sample by using titration method and state whether the percentage and concentration of vitamin C. Methodology: Theory : DCPIP can also be used as an indicator for Vitamin
A study by Hariharan M, Wheatley TA, and Price JC (1997) investigated controlled release on two kinds of carrageenan, lambda carrageenan (Viscarin GP-209) and iota-carrageenan (Gelcarin GP-379). They analyzed their respective compression capabilities through the use of a Strokes single punch machine. Yield pressure was calculated at 81.3 Pa for iota carrageenan and 105.2 MPa for lambda-carrageenan through the use of Heckel plots out of die tablet densities. The results proved linear. Both carrageenan