Uburyo imiti ikoreshwa mu guhinga hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose (HPMC)ni polymer ishongeshwa n'amazi ikunze gukoreshwa mu nganda no mu buvuzi, kandi ifite agaciro gatandukanye mu ikoreshwa ryayo, nko mu irekurwa ry’imiti igenzurwa, gutunganya ibiribwa no mu bikoresho by’ubwubatsi. Impinduka mu mikorere yayo yo gushyushya zifitanye isano ahanini no kwangirika no guhinduka kwa selulose ndetse n’imikorere ya mikorobe. Kugira ngo dusobanukirwe neza imikorere ya HPMC mu mikorere yo gushyushya, tugomba kubanza gusobanukirwa imiterere yayo y’ibanze n’uburyo selulose ingirika.

1. Imiterere n'imiterere y'ibanze ya hydroxypropyl methylcellulose

HPMC ni ikintu kivamo ibintu bivamo ibintu bivamo selulose karemano (Cellulose). Urusobe rw'umuyoboro wayo wa molekile ni molekile za glucose (C6H12O6) zihujwe n'imigozi ya glycosidic ya β-1,4. Selulose ubwayo iragoye gushonga mu mazi, ariko iyo ishyizemo methyl (-OCH3) na hydroxypropyl (-C3H7OH), gushonga kwayo mu mazi bishobora kunozwa cyane kugira ngo bikore polymer isomba. Uburyo bwo guhindura HPMC muri rusange burimo uburyo selulose ikorana na methyl chloride (CH3Cl) na propylene alcohol (C3H6O) mu gihe cy'ubushyuhe, kandi umusaruro uvamo ufite ubushobozi bwo gushonga no gushonga cyane.

2. Impinduka mu mikorere y'ibinyabutabire mu gihe cyo guhinga

Uburyo bwo gushyushya HPMC bukunze guterwa n'imikorere y'udukoko duto dukoresha HPMC nk'isoko ya karuboni n'intungamubiri. Uburyo bwo gushyushya HPMC bugizwe n'ibi bikurikira:

2.1. Kwangirika kwa HPMC

Selilulose ubwayo igizwe n'ibice bya glucose bihujwe, kandi HPMC izangirika n'udukoko mu gihe cyo gushyushya, ibanza guhindurwamo isukari ntoya ikoreshwa (nk'isukari, xylose, nibindi). Ubusanzwe iyi nzira ikoreshwa n'imisemburo myinshi ihumanya selulose. Ingaruka nyamukuru zo kwangirika zirimo:

Uburyo bwo guhidika kwa selulosi: Imigozi ya β-1,4 glycosidike muri molekile za selulosi izacikamo ibice bya selulosi (nka selulosi, endoselile), bigakora imiyoboro migufi y'isukari (nka oligosaccharide, disaccharide, nibindi). Iyi sukari izarushaho guhindurwa no gukoreshwa na mikorobe.

Hydrolysis no kwangirika kwa HPMC: Ibisimbura methyl na hydroxypropyl muri molekile ya HPMC bizakurwaho igice na hydrolysis. Uburyo bwihariye bw'imikorere ya hydrolysis ntabwo burasobanuka neza, ariko birashoboka ko mu gihe cyo guhisha, hydrolysis reaction iterwa na enzymes zituruka muri mikorobe (nka hydroxyl esterase). Iyi nzira ituma imiyoboro ya molekile ya HPMC icikamo ibice no gukuraho amatsinda mato y'isukari.

2.2. Uburyo mikorobe zikora mu mikorere yazo

Iyo HPMC imaze kwangirika ikaba molekile nto z'isukari, mikorobe zishobora guhindura izi sukari mo ingufu binyuze mu bikorwa bya enzymatic. By'umwihariko, mikorobe zigira glucose zigahinduka ethanol, aside lactic cyangwa izindi metabolites binyuze mu nzira zo guhinga. Mikorobe zitandukanye zishobora guhindura ibicuruzwa bya HPMC byangiritse binyuze mu nzira zitandukanye. Inzira zisanzwe zo guhindura imikorere zirimo:

Inzira ya Glycolysis: Glucose ihinduka pyruvate na enzymes hanyuma igakomeza guhinduka ingufu (ATP) na metabolites (nk'aside lactic, ethanol, nibindi).

Gukora umusaruro w’ubushyuhe: Mu gihe cy’imyuka mibi cyangwa idafite umwuka mwinshi, udukoko duhindura isukari cyangwa ibintu byayo byangiritse mo aside organic nka ethanol, aside lactic, aside acetic, nibindi binyuze mu nzira zo gushyuha, zikoreshwa cyane mu nganda zitandukanye.

2.3. Uburyo bwo gusubiza ibintu mu buryo bwa Redox

Mu gihe cyo guhisha HPMC, hari udukoko duto dushobora guhindura ibintu biri hagati binyuze mu mikorere ya redox. Urugero, uburyo bwo gukora ethanol buherekezwa n'imikorere ya redox, glucose irasubikwa kugira ngo ikore pyruvate, hanyuma pyruvate igahindurwa ethanol binyuze mu mikorere yo kugabanya. Ibi bikorwa ni ingenzi mu kubungabunga imikorere y'uturemangingo.

3. Ibintu bigenzura uburyo bwo guhinga

Mu gihe cyo gushyushya HPMC, ibintu bidukikije bigira ingaruka zikomeye ku mikorere y’ibinyabutabire. Urugero, pH, ubushyuhe, ingano ya ogisijeni yashongeshejwe, ingano y’intungamubiri, nibindi bizagira ingaruka ku muvuduko wa metabolike ya mikorobe n’ubwoko bw’ibicuruzwa. Cyane cyane ubushyuhe na pH, imikorere ya enzymes za mikorobe ishobora gutandukana cyane mu bihe bitandukanye by’ubushyuhe na pH, bityo ni ngombwa kugenzura neza imiterere ya metabolike kugira ngo HPMC irangirike kandi inzira ya metabolike ya mikorobe igende neza.

Uburyo bwo guhishaHPMCBikubiyemo ingaruka zikomeye z’ibinyabutabire, harimo no gushonga kwa selulose, kwangirika kwa HPMC, metabolism y’isukari, no gukora ibikomoka ku gushyushya. Gusobanukirwa izi ngaruka ntibifasha gusa kunoza inzira yo gushyushya ya HPMC, ahubwo binatanga inkunga y’ibitekerezo ku musaruro ujyanye n’inganda. Hamwe n’ubushakashatsi bwimbitse, uburyo bwo gushyushya bunoze kandi buhendutse bushobora guterwa imbere mu gihe kizaza kugira ngo bunoze uburyo bwo kwangirika kwa HPMC n’umusaruro w’ibikomoka ku bimera, kandi buteze imbere ikoreshwa rya HPMC mu guhindura imiterere y’ibinyabuzima, kurengera ibidukikije n’ibindi bikorwa.