In the developed nations, there are rare cases of deficiency of vitamin B2 since most of the food products with refined carbohydrates contain a good amount of riboflavin. Also, eggs and meat which are also commonly consumed are a good source of vitamin B2.
Blood plasma and serum â Blood plasma, or plasma, is prepared by obtaining a sample of blood and removing the blood cells. The red blood cells and white blood cells are removed by spinning with a centrifuge.
You can thank Karl Landsteiner for discovering blood typing! It won him a Nobel Prize and he helped save millions of lives! Karl Landsteiner: Scientist who discovered blood groups in 1901. Father of modern transfusion & received the Nobel Prize in 1930. He also discovered the Polio virus. See More