Sialic acidyog ib qho muab tso ntawm 9-carbomonosaccharide. Lub npe tau los ntawm Greek, qhov tsis zoo raug ion uas ua rau kom qaub ncaug zoo nkauj. Nws tsis tsuas yog muaj kev ua haujlwm ntawm" inducing" ntxeem tau cov kab mob, tab sis kuj yog kev tiv thaiv ntawm lub hlwb.
Sialic acid tuaj yeem tiv thaiv kev ntxeem tau ntawm cov kab mob.
Sialic acid tseem yog qhov chaw txais ntawm tus kab mob khaub thuas thiab qhov chaw khi ntawm tus kab mob khaub thuas hauv cov hnoos qeev.
Lub npe hauv scientific yog N-acetylneuraminic acid, uas yog lub ntuj carbohydrate. Nws yog Ameslikas cais los ntawm submandibular gland mucin.
Sialic acid feem ntau muaj nyob rau hauv daim ntawv ntawm oligosaccharides, glycolipids, lossis glycoproteins.
Hauv tib neeg lub cev, cov ntsiab lus ntawm sialic acid nyob rau hauv lub hlwb yog qhov ntau tshaj. Cov ntsiab lus ntawm sialic acid nyob rau hauv cov teeb meem grey yog 15 zaug ntau dua qhov ntawd hauv daim siab thiab mob ntsws.
Cov zaub mov tseem ceeb ntawm sialic acid yog kua mis, uas kuj muaj nyob hauv mis, qe thiab tshij.
Cim: xim tsis muaj xim.
Melting point (OC): 185-187 (kho kom zoo)
Kev sib hloov tshwj xeeb (O, C=2, dej): - 32
Solubility: soluble hauv dej thiab methanol, soluble me ntsis hauv ethanol, insoluble hauv ether, acetone thiab chloroform.
Hauv cov tshuaj, glycolipids muaj cov sialic acid yog hu ua gangliosides, uas ua lub luag haujlwm tseem ceeb hauv kev tsim khoom thiab kev loj hlob ntawm lub hlwb thiab lub paj hlwb.
Tib lub sijhawm, kev tshawb nrhiav tsiaj pom tau hais tias qhov txo qis ntawm ganglioside yog cuam tshuam txog kev noj zaub mov tsis raug thaum ntxov thiab kev kawm tsis tau, thiab kev sib xyaw sialic acid tuaj yeem txhim kho kev kawm ntawm tus tsiaj.
Txaus sialic acid mov tej zaum yuav tseem ceeb tshwj xeeb rau kev loj hlob ntawm lub hlwb ua haujlwm hauv cov menyuam yaus uas tsis muaj qhov hnyav. Tom qab yug los, sialic acid nyob rau hauv niam mis yog qhov tseem ceeb los xyuas kom lawv cov kev loj hlob zoo. Daim ntawv tshuaj ntsuam pom tau hais tias theem ntawm sialic acid nyob rau hauv leej niam' s lub cev txo qis nrog lub sijhawm hla. Yog li, kev noj cov kua sialic acid tsis tu ncua thaum thiab tom qab cev xeeb tub tuaj yeem pab tswj cov qib sialic acid hauv lub cev. Ntxiv rau, cov ntsiab lus ntawm sialic acid muaj feem cuam tshuam nrog cov ntsiab lus ntawm DHA, uas qhia tau tias nws muaj feem cuam tshuam nrog kev txhim kho ntawm lub hlwb qauv thiab lub hlwb kev ua haujlwm ntawm cov menyuam mos, uas yuav muaj txiaj ntsig zoo rau kev txhim kho hlwb thaum ntxov.
Thov hu rauinfo @ konochemicalyog tias koj xav paub ntau ntxiv txog cov khoom siv raw khoom no.
