Chaza:
Ukwakhiwa kokudla okuhlanganisai-cellulose ethers
Inkambu yobuchwepheshe:
Okusunguliwe kwamanje kuhlobene nokwakheka kokudla okuqukethe ama-cellulose ethers.
Indlela yangemuva:
Sekuyisikhathi eside kwaziwa ngokuhlanganisa ama-ether e-cellulose ekwakhiweni kokudla, ikakhulukazi ukwakheka kokudla okugayiwe, ukuze kuthuthukiswe izici ezihlukahlukene ezifana nokuzinza kweqhwa kanye/noma ukuthungwa, noma ukuthuthukisa ukuqina ngesikhathi sokukhiqiza, okucutshungulwa ngomshini noma okuthosiwe. Isicelo selungelo lobunikazi saseBrithani i-GB 2 444 020 idalula lokho kuhlanganiswa kokudla okuhlanganisa i-nonionic cellulose ether efana ne-methylcellulose, i-hydroxypropyl cellulose, noma i-hydroxypropyl methylcellulose. I-Methylcellulose ne-hydroxypropyl methylcellulose “zinezakhiwo ezihlehliswayo ze-thermos”. Kuchazwa ngokuqondile ukuthi lapho isixazululo esinamanzi se-methylcellulose noma i-hydroxypropyl methylcellulose sishisiswa, iqembu le-hydrophobic methoxy elitholakala ku-molecule liphelelwa amanzi emzimbeni, futhi liba ijeli enamanzi. Ngakolunye uhlangothi, lapho ijeli ewumphumela selehlile, amaqembu e-hydrophobic methoxy abuyiselwa emanzini, lapho ijeli ibuyela esixazululo sokuqala samanzi.
I-European Patent EP I 171 471 idalula i-methylcellulose ewusizo kakhulu ekuqanjweni kokudla okuqinile njengemifino eqinile, inyama, nama-patties kabhontshisi ngenxa yamandla ayo ejeli akhulayo. I-methylcellulose inikeza ukuqina okuthuthukisiwe nokubumbana ekubunjweni kokudla okuqinile, ngaleyo ndlela inikeze umuzwa omuhle wokuluma kubathengi abadla ukwakheka kokudla okugayiwe. Uma incibilika emanzini abandayo (isb., 5°C noma ngaphansi) ngaphambi noma ngemva kokuxutshwa nezinye izithako zokwakheka kokudla, isobho ye-methylcellulose ifinyelela amandla ayo aphelele ukuze ihlinzeke ngokuqanjwa kokudla okuqinile ngokuqina okuhle nokuhlangana. ikhono.
Kodwa-ke, kwezinye izimo, ukusetshenziswa kwamanzi abandayo akulula kumkhiqizi wokwakheka kokudla. Ngakho-ke, kungaba okufiselekayo ukunikeza ama-cellulose ethers ahlinzeka ngokuqanjwa kokudla okuqinile ngobulukhuni obuhle nokuhlangana ngisho nalapho ama-cellulose ethers encibilika emanzini anezinga lokushisa elilingana negumbi.
IHydroxyalkyl methylcellulose njenge-hydroxypropyl methylcellulose (eyaziwa nangokuthi iwusizo ekuqanjweni kokudla) yaziwa ngokuba nemodulus yokugcina ephansi uma iqhathaniswa ne-methylcellulose. I-Hydroxyalkyl methylcellulose ebonisa imodyuli yesitoreji esincane ayiwakhi amajeli aqinile. Ukugxila okuphezulu kuyadingeka ngisho nama-gel abuthakathaka (Haque, A; Richardson; Morris, ER, Gidley, MJ noCaswell, DC ku-Carbohydrate Polymers22 (1993) p.175; kanye no-Haque, A no-Morris, ER1nCarbohydrate Polymers22 (1993) p.161).
Uma i-hydroxyalkyl methylcellulose njenge-hydroxypropyl methylcellulose (ebonisa imodyuli yesitoreji esiphansi) ifakiwe ekwakhiweni kokudla okuqinile, ubulukhuni nokuhlangana kwayo akuphakeme ngokwanele kwezinye izinhlelo zokusebenza.
Kuyinto yokusungulwa kwamanje ukuhlinzeka nge-hydroxyalkyl methylcellulose, ikakhulukazi i-hydroxypropyl methylcellulose, eqhathaniswa ne-hydroxyalkyl methylcellulose eyaziwayo, njenge-hydroxypropyl methylcellulose Ngokuphambene, ukwakheka kokudla okuqinile kuhlinzekwa ngokuqina okuthuthukisiwe kanye/noma ukuhlangana.
Into ekhethwayo yokusungulwa kwamanje ukuhlinzeka nge-hydroxyalkyl methylcellulose, ikakhulukazi i-hydroxypropyl methylcellulose, ehlinzeka ngokuqanjwa kokudla okuqinile ngobulukhuni obuhle kanye/noma ukuhlangana ngisho nalapho i-hydroxyalkyl methylcellulose Kunjalo uma incibilika emanzini anezinga lokushisa elilingana negumbi.
Ngokumangalisayo, kutholakale ukuthii-hydroxyalkyl methylcellulose, ikakhulukazi i-hydroxypropyl methylcellulose, ingasetshenziswa ekulungiseleleni Uma kuqhathaniswa nezingoma zokudla okuqinile, ukwakheka kokudla okuqinile okwaziwayo kunobulukhuni obuphakeme kanye/noma ukuhlangana.
Futhi ngokumangalisayo, kutholakale ukuthi i-hydroxyalkyl methylcellulose ethile, ikakhulukazi i-hydroxypropyl methylcellulose, ayidingi ukuchithwa emanzini abandayo ukuze kuhlinzekwe izingoma zokudla okuqinile ngokuqina okuhle kanye/noma ukuhlangana.
Isikhathi sokuthumela: Apr-28-2024