Qhov sib txawv tseem ceeb ntawm sorbitol thiab mannitol yog cov hydroxyl pawg ntawm cov pa roj carbon thib ob ntawm sorbitol Fischer qhov projection tawm ntawm lub dav hlau, hos nyob rau hauv mannitol, pawg hydroxyl ntawm ob carbon atom ntawm mannitol mus tom qab. lub dav hlau nyob rau hauv nws qhov Fischer projection.
Sorbitol thiab mannitol yog cov qauv isomers. Ob qho no yog cov qab zib qab zib molecules thiab muaj txiaj ntsig zoo li cov khoom qab zib.
YSorbitol yog dab tsi?
Sorbitol yog cov cawv qab zib uas muaj qab zib thiab tshwm sim hauv cov qos yaj ywm starch. Nws maj mam metabolized los ntawm tib neeg lub cev. Peb tuaj yeem tau txais sorbitol los ntawm kev txo cov piam thaj. Ntawm no, pawg aldehyde ntawm qabzib tau hloov mus rau hauv pawg cawv thawj. Yog li, sorbitol yog cawv. Peb tuaj yeem nrhiav sorbitol raws li qhov tshwm sim tshwm sim; e.g. Hauv cov txiv apples, txiv duaj, txiv duaj, thiab lwm yam. Txawm li cas los xij, peb feem ntau tau txais sorbitol los ntawm qos yaj ywm starch.
Thaum ua ke, sorbitol tshwm ua cov hmoov dawb crystalline. Txoj hauv kev tseem ceeb ntawm kev tsim khoom yog qhov txo cov piam thaj hauv cov tshuaj uas cov aldehyde tau hloov mus rau hauv pawg cawv. Cov tshuaj tiv thaiv no yuav tsum tau NADH thiab tshwm sim nyob rau hauv lub xub ntiag ntawm ib tug catalyst - aldose reductase. Kev txo cov piam thaj yog ib txoj hauv kev ntawm polyol ntau lawm hauv cov piam thaj metabolism.
Daim duab 01: Cov Qauv Tshuaj ntawm Sorbitol
Muaj ntau daim ntawv thov sorbitol: ua cov khoom qab zib, ua laxative, raws li kab mob kab lis kev cai, hauv kev kho mob hyperkalemia, hauv kev tsim cov tshuaj mos gel, thiab lwm yam. Sorbitol kuj tseem muaj txiaj ntsig hauv kev lag luam tshuaj pleev ib ce ua cov tshuaj humectant thiab ua cov thickener. Tsis tas li ntawd, muaj ntau yam kev siv sorbitol xws li kev tsim cov roj foob pob hluav taws, tsim cov khoom siv biomass, thiab lwm yam.
Mannitol yog dab tsi?
Mannitol yog cov cawv qab zib uas muaj txiaj ntsig zoo li cov khoom qab zib thiab ua tshuaj. Vim tias nws tsis zoo los ntawm txoj hnyuv, peb tuaj yeem siv mannitol hauv cov khoom noj ntshav qab zib. Raws li kev siv tshuaj, peb tuaj yeem siv mannitol kom txo qis hauv qhov muag thiab txo qis intracranial siab. Nws tuaj yeem muab tshuaj rau hauv daim ntawv txhaj tshuaj rau kev kho mob.
Daim duab 02: Cov Qauv Tshuaj ntawm Mannitol
Mannitol yog ib qho isomer ntawm sorbitol. Ob qho qab zib cawv no txawv ntawm ib leeg raws li kev taw qhia ntawm pawg hydroxyl uas txuas nrog rau lub thib ob carbon atom ntawm cov piam thaj molecule.
Peb tuaj yeem tau txais mannitol los ntawm kev txo qis mannose qab zib. Txawm li cas los xij, kev lag luam-scale synthesis ntawm mannitol yog los ntawm hydrogenation ntawm fructose. Ntxiv mus, qee cov kab mob tsim mannitol ua lub zog, xws li. kab mob, fungi, algae, lichens, thiab lwm yam. Tsis tas li ntawd, peb tuaj yeem ncaj qha rho mannitol los ntawm nws qhov chaw xws li seaweed.
Qhov txawv ntawm Sorbitol thiab Mannitol yog dab tsi?
Sorbitol thiab mannitol yog cov qauv isomers. Qhov sib txawv tseem ceeb ntawm sorbitol thiab mannitol yog cov hydroxyl pab pawg ntawm cov pa roj carbon thib ob ntawm sorbitol Fischer qhov projection tawm ntawm lub dav hlau, thaum nyob rau hauv mannitol, pawg hydroxyl ntawm lub thib ob carbon atom ntawm mannitol mus tom qab lub dav hlau nyob rau hauv nws Fischer. projection.
Peb tuaj yeem pom sorbitol ua ib qho chaw tshwm sim; e.g. Nyob rau hauv apples, pears, txiv duaj, thiab lwm yam. Peb feem ntau tau txais sorbitol los ntawm qos starch. Qee cov kab mob tsim mannitol ua lub zog, piv txwv li. kab mob, fungi, algae, lichens, thiab lwm yam.
Hauv qab infographic tabulates qhov sib txawv ntawm sorbitol thiab mannitol.
Summary – Sorbitol vs Mannitol
Sorbitol thiab mannitol yog cov qauv isomers. Qhov sib txawv tseem ceeb ntawm sorbitol thiab mannitol yog cov hydroxyl pab pawg ntawm cov pa roj carbon thib ob ntawm sorbitol Fischer qhov projection tawm ntawm lub dav hlau, thaum nyob rau hauv mannitol, pawg hydroxyl ntawm lub thib ob carbon atom ntawm mannitol mus tom qab lub dav hlau nyob rau hauv nws Fischer. projection.
