CHEM 181 Lecture Notes - Lecture 2: Cod Liver Oil, Christiaan Eijkman, Tocopherol

• School: McGill University
• Department: Chemistry
• Course: CHEM 181
• Professor: David Harpp

Document Summary

09/02/2016 13:10: nutrients needed in small amounts to prevent deficiency diseases, balanced diet contains all the vitamins in the required amount, 13 different vitamins, fat soluble vitamins. A, d, e, and k: water soluble vitamins. The history of vitamin c: discovery voyages of the 15th to 17th century. sailors went tosea for a long period of time, disease would develop, scurvy (gums would start bleeding, blotches over the skin) Brew made out of pine needle (rich source of vitamin c) Now actually, vitamin c (ascorbic acid) is present in a number of other foods (cabbage for example) Albert szent-gyorgyi (1927) isolated the active ingredient in lime juice: active ingredient was what we know today as vitamin c, ascorbic acid. Beri-beri, which stands as i can"t, i can"t. Chris eijkman: substance present in the husk of brown rice that was essential in the prevention of beri-beri, convertion to white rice deprived the rice from this very important nutrient.