Mendel, Lafayette Benedict

Mendel, Lafayette Benedict

▪ American biochemist
born Feb. 5, 1872, Delhi, N.Y., U.S.
died Dec. 9, 1935, New Haven, Conn.

      American biochemist whose discoveries concerning the value of vitamins (vitamin) and proteins (protein) helped establish modern concepts of nutrition.

      A professor of physiological chemistry at Yale from 1903 to 1935, he worked with the American biochemist Thomas Osborne to determine why rats could not survive on diets of pure carbohydrates, fats, and proteins alone. Simultaneously with the American biochemists Elmer McCollum and Marguerite Davis, he discovered a fat-soluble factor in cod liver oil and butter (1913; now known to be vitamin A) and a water-soluble factor in milk (1915; now known to be the vitamin B complex), both necessary to life. These researchers also proved that the nutritive value of proteins is determined by the amounts of essential amino acids (amino acid) they contain. Mendel wrote Changes in the Food Supply and Their Relation to Nutrition (1916) and Nutrition: the Chemistry of Life (1923).

* * *


Universalium. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • MENDEL, LAFAYETTE BENEDICT — (1872–1935), U.S. physiological chemist and pioneer in nutrition. Born in Delhi, New York, Mendel became professor at the Yale Sheffield Science School, and in 1921 professor of physiological chemistry at Yale University. He was the first person… …   Encyclopedia of Judaism

  • Lafayette Mendel — Infobox Scientist name = Lafayette Mendel caption = birth date = birth date|1872|2|5|mf=y birth place = Delhi, New York, U.S. death date = death date and age|1935|12|9|1872|2|5|mf=y death place = New Haven, Connecticut, U.S. residence =… …   Wikipedia

  • Lafayette B. Mendel House — Infobox nrhp name = Lafayette B. Mendel House nrhp type = nhl caption = location= New Haven, Connecticut lat degrees = 41 lat minutes = 18 lat seconds = 41 lat direction = N long degrees = 72 long minutes = 55 long seconds = 7 long direction = W… …   Wikipedia

  • National Register of Historic Places listings in New Haven, Connecticut — Location of New Haven in Connecticut This is a list of National Register of Historic Places listings in New Haven, Connecticut. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in… …   Wikipedia

  • Dexfenfluramine — La dexfenfluramine, commercialisée par les laboratoires Servier sous le nom d Isoméride ou de Redux, est une substance active médicamenteuse aux propriétés anorexigènes (effet « coupe faim ») qui agit directement sur les récepteurs… …   Wikipédia en Français

  • Fenfluramine — Énantiomère S de la fenfluramine (en haut) et (R) fenfluramine (en bas) Général …   Wikipédia en Français

  • religion — religionless, adj. /ri lij euhn/, n. 1. a set of beliefs concerning the cause, nature, and purpose of the universe, esp. when considered as the creation of a superhuman agency or agencies, usually involving devotional and ritual observances, and… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”