carrageenans are extracted from red seaweed and assume a gelatinous structure. [pic] Figure 1.Different types of carrageenan. They differ in structure‚ properties and uses. Production of carrageenan‚ particularly κ-carrageenan can be done in either of two ways. The first method‚ which is considered as the original one‚ involves the extraction of carrageenan into an aqueous solution‚ filtration to remove the seaweed residue and finally‚ the recovery of the carrageenan from the solution. Hence‚
Free Glucose Carbohydrate Chemistry
Gatsby Essay In this extract from the novel “The Great Gatsby” by F. Scott Fitzgerald‚ the corruption and decay of the society is highlighted by the uses of various elements such as conflict‚ setting‚ characterisation and imagery. In first person‚ Nick shows his conflicting thoughts of what he thinks of the party. He feels the party and the people there are vulgar‚ yet appealing. This contradicts the way in which introduces himself – a non-judgemental who in most cases looks over the situation.
Premium F. Scott Fitzgerald Working class Morality
acetone as the solvent. The chlorophyll and carotenoid pigments were extracted by using column chromography and alumina was used as the solvent. Solvents of different polarities were used‚ starting with the least polar‚ to extract the certain components from the leaves. They were then analyzed by using thin- layer chromatography. Procedure: The first part of the experiment dealt with breaking down the spinach leaves in a mortar and pestle. Acetone was added to this to help with the breakdown of the
Premium Thin layer chromatography Solvent Green
Exercise 10: Acid-Base Balance: Activity 2: Rebreathing Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. In cases of acidosis‚ the pH of the blood is You correctly answered: c. less than 7.35. 2. Carbon dioxide and water form You correctly answered: a. carbonic acid (a weak acid). 3. Which of the following is true of respiratory acidosis? You correctly answered: c. The amount of carbon dioxide in the blood is greater than normal. 4. Rebreathing You correctly
Premium Carbon dioxide Bicarbonate Blood
Extraction of metals The History of Metals. Metals have been used by people for many thousands of years. Gold and silver‚ found as native metal‚ were used both as jewellery and as a status symbol - nothing new there. These metals were known in the Stone Age‚ but gold and silver are too soft to be used as tools. The first really useful metal to be discovered was bronze. This began the Bronze Age. Bronze was used extensively for tools and weapons in Asia and Africa from 4‚500 B.C. (6‚500 years
Premium Oxygen Metal Iron
Since 1980 Quebec had the desire of separation from Canada and many people know it as the Quebec sovereignty referendum. Separatism is when a province or state like Quebec would separate to create a country of its own. That concept was rejected by about 60% of the Quebecois during 1980 when the first voting took place‚ although they voted again during 1995 and 51% of the Quebecois did not agree with the desire of separation. Meaning that 49% of Quebecois voted “Yes”‚ which shocked many people and
Premium Canada Quebec
Lab report for Experiment #2: Extraction Your Name: Name of TA: Lab Partner’s Name: Lab Section: Title: Experiment #2: Extraction Purpose: What is the purpose of this lab? In your OWN words! Observations: Weighed out 3.2568 grams of chemical mixture that was yellow in color. Dissolved dry chemicals in 38 ml CH2Cl2 with gentle heating. Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse‚ poured solution into sep funnel. Added 15 ml 3 M
Premium PH Solubility Chemistry
Experiment 2: Extraction – Evaluation Summary Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
Premium Solubility Fatty acid Solvent
Methyl Benzoate from Benzoic Acid October 28‚ 2010 Abstract: This experiment was conducted to synthesize methyl benzoate from benzoic acid and methanol by using the Fischer esterification method. Methanol (12.5ml) and Benzoic acid (4.9 grams) are heated together in the presence of concentrated sulfuric acid (1.5ml) until equilibrium is achieved. A reflux apparatus is set up for 1 hour to carry out the reaction at the boiling point of the solvent (Methanol‚ 2.5ml). Then‚ separation though an extraction
Premium Distillation Benzene Oxygen
Abstract By using acid-base titration‚ we determined the suitability of phenolphthalein and methyl red as acid base indicators. We found that the equivalence point of the titration of hydrochloric acid with sodium hydroxide was not within the ph range of phenolphthalein’s color range. The titration of acetic acid with sodium hydroxide resulted in an equivalence point out of the range of methyl red. And the titration of ammonia with hydrochloric acid had an equivalence point that was also out of
Premium PH indicator Titration PH