vitamin | englesko - srpski prevod

vitamin

imenica

Sinonimi: vitamine

Any of various chemically unrelated organic compounds that are necessary in small quantities for the normal functioning of the human body. Many act as coenzymes, small molecules that enable enzymes to function effectively. Vitamins must be supplied by the diet because the body cannot make them. They are normally present in adequate amounts in a balanced diet. Deficiency of a vitamin may lead to a metabolic disorder (“deficiency disease”), which can be remedied by sufficient intake of the vitamin. They are generally classified as water-soluble (B and C) or fat-soluble (A, D, E, and K). See separate entries for individual vitamins, also nicotinic acid, folic acid, and pantothenic acid.
Scurvy (the result of vitamin C deficiency) was observed at least 3,500 years ago, and sailors from the 1600s were given fresh sprouting cereals or citrus fruit juice to prevent or cure it. The concept of scurvy as a deficiency disease, however, caused by the absence of a specific substance, emerged later. In the 1890s a Dutch doctor, Christiaan Eijkman, discovered that he could cure hens suffering from a condition like beriberi by feeding them on whole-grain, rather than polished, rice. In 1912 Casimir Funk, a Polish-born biochemist, had proposed the existence of what he called “vitamines” (vital amines), but it was not fully established until about 1915 that several deficiency diseases were preventable and curable by extracts from certain foods. By then it was known that two groups of factors were involved, one being water-soluble and present, for example, in yeast, rice-polishings, and wheat germ, and the other being fat-soluble and present in egg yolk, butter, and fish-liver oils. The water-soluble substa
nce, known to be effective against beriberi, was named vitamin B. The fat-soluble vitamin complex was at first called vitamin A. As a result of analytical techniques these have been subsequently separated into their various components, and others have been discovered.
Any of a group of organic substances essential in small quantities to normal metabolism; SYN. vitamine.

1. vitamin

muški rod

Organsko jedinjenje koje reguliše biološke procese u živim bićima; vitamini su neophodni za održavanje života (nalaze se u manjim količinama u hrani, a dobijaju se i veštačkim putem); najviše vitamina ima u zelenim delovima biljaka, u svežim plodovima i semenju, svežem mesu, žumancetu od jaja, u melu i dr.; uzimanje hrane bez vitamina izaziva razne bolesti (skorbut, rahitis, beriberi, pelagra, itd).
O vitaminima je mnogo toga rečeno u poslednje dve hiljade godina, otkako su Egipćani otkrili da vitamin A leči slepilo. Razvoj medicine i nauke potvrdio je da se bez njih danas ne može. Oni štite od kardiovaskularnih bolesti, otklanjaju umor i napetost, povećavaju odbrambene snage organizma i poboljšavaju koncentraciju, a imaju i nimalo zanemarljiv učinak na usporavanje procesa starenja, kako na ćelijskom nivou, tako i na mentalnom. NJihova popularnost među ljudima u velikim gradovima dosegla je nivo opsesije - nije tajna da američke domaćice vitamine koriste kao dodatak jelima. Mnogi vitamini su predmet rasprava svetskih naučnika. Stara je istina da je najbolje uneti ih voćem i povrćem, jer u svom organskom obliku najbolje deluju, a pri tom su obogaćeni i mineralima i oligoelementima.
Kada je reč o vitamnskim preparatima koji mogu da se kupe u prodavnici, utvrđeno je da A, C, D, i E mogu i treba da se unose zajedno, jer udruženi postižu bolje efekte. Preporuka stručnjaka je da se izbegavaju multivitaminski preparati, jer su stvoreni u komercijalne svrhe, pa ako se već odlučujemo na uzimanje vitamina u sintetičkom obliku, trebalo bi da unosimo svaki vitamin posebno. (lat.)

Da li ste možda tražili neku od sledećih reči?

Vietminh | vitamin A | vitamin E | vitamine | vitamin H

Naši partneri

Škole stranih jezika | Sudski tumači/prevodioci