Sitaci hydrolysis

Sitaci (S6N10O5) n - polysaccharide wanda aka hada da biyu kasarun adadi: 25% mikakke amylose da kuma 75% amylopectin branched. An kafa da haske a cikin shuke-shuke a lokacin photosynthesis.

Wannan abu ne mai fararen foda wanda insoluble a ruwan sanyi ta samar da wata slurry. Bayan ya magance slurry a kasa na tanki ajiye farin precipitate, da ruwa za a iya drained sauƙi. Bayan da bushewa, da sitaci recovers duk da kaddarorin.

A cikin ruwan zafi da shi Forms colloidal bayani daga dũkiyar - shi ne irin wannan danko sosai ruwa, wadda kuma ake kira mai sitaci manna da aka sau da yawa amfani a cikin gida kamar yadda m. Kuma duk da haka a wannan dukiya tushen da dafa abinci jelly da kuma wasu desserts.

Sitaci - a chemically inert abu. Domin ga shi ya amsa, dole ne ka shiga a cikin tsari catalysts.

A ta jiki da kuma sinadaran Properties daga cikin abu dangane da aikace-aikace. Saboda haka, sitaci da kuma Kalam ana amfani a cikin abinci, kuma yadi da takarda masana'antu. Kuma ga rayayyun kwayoyin halitta, ya taka muhimmiyar rawa.

Don amfani da kwayoyin halitta ga masana'antu dalilai shi ne chemically vozdeystiviyu. Hydrolysis na sitaci - wannan ion musayar aiwatar tsakanin ruwa da kuma abu, wanda zai iya zama enzymatic ko acidic.

Chemical hydrolysis na sitaci - catalytic dauki, kamar yadda ya auku tare da dumama a gaban inorganic acid. A wannan sinadaran dauki lissafi za a iya bayyana a cikin glucose kafa wadda:
(S6N10O5) n + nH2O + (cat. H2SO4 + t °) = nC6H12O6.

Amma kwanan nan samun shahararsa enzymatic hydrolysis na sitaci. Amfani da musamman fasahar, shi ne samu daga ethyl barasa, molasses kuma glucose, kazalika a cikin sinadaran hydrolysis.

A amfani da wannan tsari ne cewa a starchy shuka dauka a matsayin albarkatun kasa domin shi, misali, hatsin rai, dankalin turawa, masara, shinkafa da sauransu. Wadannan wadannan kafofin, haka ma, dauke a cikin abun da ke ciki amylolytic enzymes, wanda ake amfani da shi a hydrolysis tsari.

Alal misali, irin enzymes ne isoamylase da pullulanase, glyukolinazy. Enzymes - halitta catalysts cewa hanzarta sunadarai halayen. Schematically aiwatar da sitaci ƙasƙanci da enzymes kamar haka: sitaci → narkewa sitaci (amylose) → oligosaccharides (dextrins) → disaccharide (maltose = malt) → α-glucose. Yana kuma iya a bayyana, da lissafi:
(C6H10O5) n + nH2O + (kat.- enzyme) = nC6H12O6

Gani za ka iya ganin cewa akwai sinadaran hydrolysis, za'ayi gwaje-gwajen. Tafasa da cakuda na sitaci manna da sulfuric acid. Mu duba in ga idan akwai wani hydrolysis - drip aidin. Idan da dauki korau, to, bãbu blue ko Violet launi, yana nufin cewa hydrolysis faru.

Yanzu tabbatar da cewa hydrolysis samfurin - glucose. Add Alkali zuwa ga sakamakon bayani da kuma jan karfe sulfate (II) (CuSO4). A precipitate jan hydroxide ba sauke, da mafita ya juya wani haske blue color. Mai tsanani da kuma ganin samuwar sludge Terra cotta (tubali) launi - yana nufin cewa da mafita yana da wani glucose, wanda aka kafa a lokacin da hydrolysis.

A jikin mutum ma ya auku enzymatic hydrolysis na sitaci. Wannan tsari yana da muhimmanci sosai, tun a cikin wannan harka kafa carbohydrates, musamman glucose. An oxidized a kowane cell na jiki, forming ruwa da carbon dioxide, haka sakewa makamashin da ake bukata domin al'ada aiki na jiki.

Hydrolysis na sitaci da enzymes zai fara a cikin bakinka a lokacin da taban da ake. Human yau ƙunshi wani enzyme - amylase, wanda a karkashin mataki na sitaci da aka raba cikin sauki aka gyara - dextrins. A tsari mutum zai iya ko ji shi. Bayan duk, idan wani dogon lokaci zuwa tauna abinci, sa'an nan a cikin bakinka bayyana zaki da dandano, wanda ya nuna cewa farkon na sitaci hydrolysis tsari. Rarar glucose, wanda aka kafa a lokacin da hydrolysis, aka ajiye a cikin hanta a matsayin ajiye gina jiki - glycogen.