menu search
brightness_auto
Ask or Answer anything Anonymously! No sign-up is needed!
more_vert
Do you know invented the vitamin-A?

12 Answers

more_vert
Vitamin A was first synthesized in 1947 by two Dutch chemists, David Adriaan van Dorp and Jozef Ferdinand Arens. During World War II, German bombers would attack at night to evade British defenses.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
The contributors behind the discovery of vitamin A are many, Vitamin A was synthesized by David Adriaan van Drop and Jozef Ferdinand Arens in 1946, later in 1937 Harry Holmes and Ruth Corbet isolated and crystallized vitamin A, further on in 1932 the chemical structure of vitamin A was described by Paul Karrer.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
In 1932, Paul Karrer wrote about Vitamin A's chemical composition. Vitamin A was crystallized and separated in 1937 by Harry Holmes and Ruth Corbet. David Adriaan van Dorp and Jozef Ferdinand Arens' and Otto Isler's research in 1946 to 1947. 
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
the vitamin-A was invented in the year 1947 by a two dutch chemists David Adriaan and Jozef Ferdinand arens during the world war Two.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Vitamin A was discovered and isolated by two Dutch biochemists, Jozef Isidorovich and David Adriaan van Dorp, in 1920. The first crystalline form of vitamin A was created by American biochemist Elmer McCollum in 1923.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Vitamin A was synthesized by David Adriaan van Drop and Jozef Ferdinand Arens in 1946, later in 1937 Harry Holmes and Ruth Corbet isolated and crystallized vitamin A, further on in 1932 the chemical structure of vitamin A was described by Paul Karrer.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Albert Szent-Györgyi, a Hungarian biochemist, discovered vitamin C and rutin (vitamin P). The role of these vitamins in the body and their application to dermatology is vast. For the discovery of vitamin C and the description of oxidation, Albert Szent-Györgyi received a Nobel Prize in medicine in 1937.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Methods for the synthesis of vitamin A came with the work of David Adriaan van Dorp and Jozef Ferdinand Arens in 1946 and Otto Isler and colleagues in 1947
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Vitamin A is a fat-soluble vitamin that was not invented but rather discovered and identified. The discovery of vitamin A is attributed to two scientists, Elmer McCollum and Marguerite Davis. They conducted research in the early 20th century and were the first to identify and describe vitamin A as a necessary nutrient for health. They referred to it as the "fat-soluble factor" in their initial work before it became known as vitamin A.

Their research led to an understanding of the importance of vitamin A in maintaining vision, supporting the immune system, and promoting overall health. Vitamin A is essential for various bodily functions and is naturally found in foods like liver, eggs, and dairy products, as well as in the form of provitamin A carotenoids in fruits and vegetables.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Vitamin A was not invented by any particular individuals rather its discovery and identification were the results of scientific research conducted by multiple scientist over several decades.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Harry Holmes and Ruth Corbet isolate and crystalized the vitamin A in 1937. David Adriaan van drop and Jozef Ferdinand Arens in 1947 recognize the methods for synthesizing the Vitamin A.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
more_vert
Harry Holmes and Ruth Corbet isolated and crystallized vitamin A in 1937. Methods for the synthesis of vitamin A came with the work of David Adriaan van Dorp and Jozef Ferdinand Arens in 1946 and Otto Isler and colleagues in 1947.
thumb_up_off_alt 0 like thumb_down_off_alt 0 dislike
Whenever you have a question in your mind, just drop it on Answeree. Help our community grow.
...