Sodium Carboxymethyl Cellulose | 9000-11-7

Carboxy methyl selulose (CMC) cyangwa selile ya selile ni selile ikomoka hamwe na carboxymethyl matsinda (-CH2-COOH) ihujwe na amwe mumatsinda ya hydroxyl ya monomers ya glucopyranose igizwe numugongo wa selile. Bikunze gukoreshwa nkumunyu wa sodium, sodium carboxymethyl selulose.

Ihindurwamo na alkali-catisale reaction ya selile hamwe na acide chloroacetic. Amatsinda ya karubike ya polar (acide organic) atanga selile ya elegitoronike kandi ikora neza. Imiterere yimikorere ya CMC biterwa nurwego rwo gusimbuza imiterere ya selile (nukuvuga umubare wamatsinda ya hydroxyl yagize uruhare mugusimbuza reaction), hamwe nuburebure bwurunigi rwimiterere ya selile ya selile hamwe nurwego rwo guhuriza hamwe insimburangingo ya carboxymethyl.

ImikoresherezeCMC ikoreshwa mubumenyi bwibiribwa nka modifier ya viscosity cyangwa kubyimbye, no guhagarika emulisiyo mubicuruzwa bitandukanye birimo ice cream. Nkinyongera yibiribwa, ifite E numero E466. Nibindi bigize ibicuruzwa byinshi bitari ibiribwa, nka KY Jelly, umuti wamenyo, imiti igabanya ubukana, ibinini byokurya, amarangi ashingiye kumazi, ibikoresho byo kwisiga, ubunini bwimyenda nibicuruzwa bitandukanye byimpapuro. Ikoreshwa cyane cyane kuko ifite ubukonje bwinshi, ntabwo ari uburozi, kandi ni hypoallergenic. Imyenda yo kumesa ikoreshwa nka polymer yo guhagarika ubutaka yagenewe kubitsa kumpamba nizindi myenda ya selile ikora inzitizi mbi yubutaka mubisubizo byo gukaraba. CMC ikoreshwa nk'amavuta mu bitonyanga by'amaso adahindagurika (amarira ya artile). Rimwe na rimwe, ni methyl selulose (MC) ikoreshwa, ariko amatsinda yayo ya methyl ya polar (-CH3) ntabwo yongerera imbaraga cyangwa reaction ya chimique kuri selile yibanze.

Ukurikije reaction yambere ibisubizo bivanze bitanga hafi 60% CMC wongeyeho umunyu 40% (sodium chloride na sodium glycolate). Iki gicuruzwa nicyo bita Tekiniki ya CMC ikoreshwa mumazi. Ubundi buryo bwo kweza bukoreshwa mugukuraho iyi myunyu kugirango habeho CMC yera ikoreshwa mubiribwa, imiti na dentifrice (amenyo yinyo). Urwego ruciriritse "igice-cyera" nacyo cyakozwe, mubisanzwe bikoreshwa mubipapuro.

CMC ikoreshwa kandi muri farumasi nkigikoresho cyo kubyimba. CMC ikoreshwa kandi mu nganda zicukura peteroli nkibigize icyondo cyo gucukura, aho ikora nka modifier ya viscosity hamwe nogukoresha amazi. Poly-anionic selile cyangwa PAC ikomoka kuri selile kandi ikoreshwa no mubikorwa bya peteroli. CMC rwose ni Acide Carboxylic, aho PAC ari Ether. CMC na PAC, nubwo bikozwe mubikoresho bimwe bibisi (selile, ingano nubwoko bwibikoresho byakoreshejwe biganisha ku bicuruzwa bitandukanye byanyuma. Itandukaniro rya mbere kandi rikomeye hagati ya CMC na PAC ribaho mu ntambwe yo guhinduka. CarboxyMethyl Cellulose (CMC) ni imiti kandi gutandukana kumubiri na Polyanionic Cellulose.

Microgranular carboxymethyl selulose ikoreshwa nka cation-guhana resin muri ion-yoguhindura chromatografiya yo kweza poroteyine. Birashoboka ko urwego rwa derivatisation ruri hasi cyane kuburyo imitekerereze ya selile ya microcranular selile igumaho mugihe wongeyeho amatsinda ya karubasi ya karubasi kugirango ahuze neza. poroteyine.

CMC nayo ikoreshwa mubipfunyika bya barafu kugirango ibe ivanze rya eutectic bivamo ahantu hakonje cyane bityo ubushobozi bwo gukonja kuruta urubura.

Ibisubizo by'amazi CMC nayo yakoreshejwe mu gukwirakwiza karubone nanotube. Bikekwa ko molekile ndende ya CMC izenguruka kuri nanotube, ikabasha gutatanya mumazi.

EnzymologyCMC nayo yakoreshejwe cyane kuranga ibikorwa bya enzyme kuva endoglucanase (igice cya selile). CMC ni substrate yihariye ya endo-ikora ya selile kuko imiterere yayo yashizweho kugirango yanduze selile kandi ikore amorphous site nziza kubikorwa bya endglucanase. CMC irifuzwa kuko ibicuruzwa bya catalizike (glucose) bipimwa byoroshye hakoreshejwe kugabanya isukari nka aside 3,5-Dinitrosalicylic. Gukoresha CMC mubisobanuro bya enzyme ni ngombwa cyane cyane mubijyanye no gusuzuma imisemburo ya selile ikenewe kugirango selile ihindurwe neza. Nyamara, CMC nayo yakoreshejwe nabi mubikorwa byabanje hamwe na enzymes ya selile kuko benshi bari bahujije ibikorwa byose bya selile na hydrolysis ya CMC. Nkuko uburyo bwa selulose depolymerisation bwarushijeho gusobanuka, twakagombye kumenya ko exo-selile yiganje mukwangirika kwa kristaline (urugero Avicel) kandi idashonga (urugero nka CMC) selile.