Qhov Tseem Ceeb - Chitin vs Cellulose
Cellulose thiab chitin yog ob yam txheej txheem polymers pom nyob rau hauv qhov xwm txheej. Cellulose yog ib qho polysaccharide ua los ntawm linear chains ntawm D-glucose monomers. Chitin kuj yog ib qho organic compound tsim los ntawm kev hloov kho cov piam thaj monomers uas yog derivatives ntawm qabzib hu ua N-acetylglucosamines. Cellulose yog cov organic polymer ntau tshaj plaws nyob hauv lub ntiaj teb. Chitin yog thib ob tsuas yog cellulose los ntawm nws cov nplua nuj nyob hauv ntiaj teb. Qhov sib txawv tseem ceeb ntawm cellulose thiab chitin yog tias cellulose yog cov txheej txheem tseem ceeb hauv cov phab ntsa ntawm cov nroj tsuag thaum chitin yog cov txheej txheem tseem ceeb hauv cov kab mob fungal.
Chitin yog dab tsi?
Chitin yog ib qho polymer uas yog tsim los ntawm hloov cov piam thaj monomers hu ua N-acetylglucosamines. Nws yog cov txheej txheem ntau polymer uas yog thib ob tsuas yog cellulose los ntawm kev nplua nuj. Chitin muaj nyob rau ntawm cov phab ntsa ntawm cov kab mob fungal, exoskeletons ntawm arthropods thiab kab. Cov tshuaj formula ntawm chitin yog (C8H13O5N)n. Albert Hofmann tau txiav txim siab tus qauv ntawm chitin hauv xyoo 1929. Chitin yog ib qho tsis muaj cov qauv polysaccharide uas ua rau muaj zog thiab tiv thaiv kab mob.
Daim duab 01: Chitin Structure
Lwm yam tshaj li cov qauv thiab kev tiv thaiv, chitin muaj ob peb lwm yam haujlwm. Chitin ua raws li tus neeg sawv cev flocculating rau kev kho cov dej khib nyiab, ua cov tshuaj kho qhov txhab, ua cov thickener thiab stabilizer rau cov khoom noj thiab tshuaj, thiab lwm yam. Thiab chitin kuj tseem siv rau hauv dyes, adhesives, sizing thiab ntxiv dag zog rau cov ntaub ntawv.
Cellulose yog dab tsi?
Cellulose yog cov organic polymer ntau tshaj plaws hauv ntiaj teb. Nws yog polysaccharide tsim los ntawm ntau pua mus rau txhiab tus kab sib txuas (nonbranched) ntawm D-glucose monomers. Nws yog cov txheej txheem organic compound. Cellulose feem ntau pom muaj nyob rau hauv thawj cell phab ntsa ntawm cov nroj tsuag cell muab lub rigidity rau cov nroj tsuag. Cellulose yog lub luag haujlwm tseem ceeb hauv lub luag haujlwm rau lub zog thiab tawv ntawm cov nroj tsuag nplooj, cov hauv paus hniav, thiab stems. Thiab tseem nyob hauv algae thiab oomycetes, cellulose pom. Cov tshuaj formula ntawm cellulose yog (C6H10O5)nThiab nws tau raug rho tawm thawj zaug hauv 1834 los ntawm Fab Kis kws tshuaj Anselme Payen.
Daim duab 02: Cellulose Fibers
Vim tias cellulose yog ib qho polymer complex, tsiaj txhu feem ntau suav nrog tib neeg tsis tuaj yeem zom cov cellulose. Tsuas yog herbivores muaj peev xwm zom cov cellulose yooj yim vim lawv cov plab hnyuv tshwj xeeb. Cellulose synthase yog ib qho enzyme uas tsim cov cellulose rau hauv cov nroj tsuag. Ntoo, paj rwb, thiab ntawv yog nplua nuj nyob rau hauv cellulose. Cellulose yog qhov tseem ceeb ntawm fiber ntau hauv peb cov khoom noj uas cuam tshuam rau tib neeg kev noj qab haus huv. Qee cov kab mob tsim cellulose rau kev tsim cov biofilms thiab cell aggregation.
Dab tsi zoo sib xws ntawm Chitin thiab Cellulose?
- Chitin thiab cellulose yog ob qho tib si tsim los ntawm cov piam thaj monomers.
- Ob leeg yog cov txheej txheem polymers.
- ob leeg yog linear polymers.
- ob leeg yog polysaccharides.
- ob leeg yog fiber ntau.
- Chitin thiab cellulose yog insoluble hauv dej.
Qhov txawv ntawm Chitin thiab Cellulose yog dab tsi?
Chitin vs Cellulose |
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| Chitin yog cov txheej txheem organic polymer ua los ntawm hloov pauv cov piam thaj monomers. | Cellulose yog cov txheej txheem organic polymer tsim los ntawm cov kab sib txuas ntawm cov piam thaj monomers. |
| tshuaj formula | |
| Cov tshuaj formula ntawm chitin yog (C8H13O5N)n | Cov tshuaj formula ntawm cellulose yog (C6H10O5)n. |
| Yam ntawm Polymer | |
| Chitin yog ib qho polymer ntawm N-acetylglucosamine (derivative ntawm qabzib). | Cellulose yog ib qho polymer ntawm qabzib. |
| Chitin feem ntau pom nyob rau hauv cov phab ntsa ntawm cov kab mob fungi, thiab kuj nyob rau hauv lub exoskeleton ntawm arthropods thiab mollusks. | Cellulose muaj nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. |
| Abundance | |
| Chitin tsawg dua li celluloses. | Cellulose yog cov organic ntau tshaj plaws hauv ntiaj teb. |
| Amyl Group | |
| Chitin muaj ib pawg amyl ua hloov pauv hauv cov piam thaj molecule. | Cellulose muaj pawg hydroxyl hauv cov piam thaj molecule. |
| Nitrogen Molecules | |
| Chitin muaj nitrogen molecules hauv nws cov qauv. | Cellulose tsis muaj nitrogen hauv nws cov qauv |
| Hardness thiab Stabile | |
| Chitin yog ib qho nyuaj thiab ruaj khov dua cellulose. | Cellulose yog qhov nyuaj thiab ruaj khov dua li chitin. |
Summary – Chitin vs Cellulose
Chitin thiab cellulose yog cov txheej txheem ntau tshaj plaws ntawm cov organic polymers pom hauv ntiaj teb. Cellulose yog thawj qhov sib xyaw ntawm cov phab ntsa cell ntawm cov nroj tsuag. Chitin yog qhov tseem ceeb ntawm cov phab ntsa ntawm tes ntawm cov fungi thiab exoskeletons ntawm arthropods. Cellulose yog ib qho polymer uas muaj D-glucose monomers. Chitin yog ib tug ntev polymer ntawm N-acetylglucosamine. Ob leeg chitin thiab cellulose yog qhov tseem ceeb rau lub zog thiab kev tiv thaiv kab mob. Ob lub tebchaw yog insoluble hauv dej. Qhov no yog qhov txawv ntawm chitin thiab cellulose.
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