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Cellulose is the most abundant organic polymer on Earth. [6] The cellulose content of cotton fiber is 90%, that of wood is 40–50%, and that of dried hemp is approximately 57%. [7] [8] [9] Cellulose is mainly used to produce paperboard and paper.
Jun 26, 2024 · Cellulose is a complex carbohydrate and the main component of plant cell walls. Learn about its structure, properties, and applications, as well as cellulosic ethanol, a second-generation biofuel.
- The Editors of Encyclopaedia Britannica
Celuloza je polisaharid s bruto jednadžbom (C 6 H 10 O 5) n, pri čemu je n stupanj polimerizacije, koji za pamuk približno iznosi 7 000, a za jelovo drvo 2 500. Lančane molekule celuloze građene su od glikozidički povezanih molekula glukoze, a obradom kiselinama celuloza se hidrolitički razgrađuje.
Celuloza este formată din molecule de glucoză unite în poziția 1-4. Este o substanță organică, un polimer sau mai specific o polizaharidă care este formată din peste 3 000 de molecule de glucoză. Un polimer este o macromoleculă formată din molecule mai mici care se repetă (glucoza în acest caz).
- 1.2M
- 9004-34-6
- 370 u.a.m. [1]
Cellulose is a molecule found in plant cell walls that helps them stay stiff and strong. Humans cannot digest cellulose, but it is important as fibre in the diet. Learn how cellulose is made from glucose molecules and how it is used in clothes and paper.
Celuloza (łac. cellula ‘komórka’) – nierozgałęziony biopolimer, polisacharyd zbudowany liniowo z 3000–14 000 cząsteczek D-glukozy połączonych wiązaniami β-1,4-glikozydowymi (masa molowa 160–560 kg/mol). Łańcuchy te mają długość około siedmiu mikrometrów.
Celulóza je hlavní stavební látkou rostlinných primárních buněčných stěn a spolu s ligninem a hemicelulózami se podílí na stavbě sekundárních buněčných stěn; celulóza je nejrozšířenějším biopolymerem na zemském povrchu, ročně jí vzniká až 1,5×10 9 tun. [1]
