Hydroxypropyl methylcellulose e entsoe ka eng?

Hydroxypropyl methylcellulose (HPMC) ke polima ea maiketsetso, e qhibilihang ka metsing e nkiloeng ho selulose.Ke phofo e tšoeu, e se nang monko, e sa latsoeheng e sebelisoang haholo e le ntho e teteaneng, emulsifier, filimi ea pele, le stabilizer liindastering tse ngata, ho kenyeletsa le meriana, lijo, litlolo le kaho.

HPMC e entsoe ka ho arabela selulose ka propylene oxide le methyl chloride.Cellulose ke polysaccharide eo e leng karolo e ka sehloohong ea marako a lisele tsa semela 'me ke motsoako o mongata ka ho fetisisa lefatšeng.Propylene oxide ke motsoako oa organic o nang le foromo ea lik'hemik'hale CH3CHCH2O.Methyl chloride ke khase e se nang mebala, e tukang e nang le monko o monate.

Karabelo ea cellulose e nang le propylene oxide le methyl chloride e fella ka hore ho thehoe lihlopha tsa hydroxypropyl, tse khomaretsoeng limolek'hule tsa cellulose.Mokhoa ona o tsejoa e le hydroxypropylation.Lihlopha tsa hydroxypropyl li eketsa ho qhibiliha ha selulose metsing, ho etsa hore ho be bonolo ho e sebelisa lits'ebetsong tse fapaneng.

HPMC e sebelisoa haholo indastering ea meriana e le setsi se kopanyang, se senyang, le se emisang matlapa le li-capsules.E boetse e sebelisoa e le motenya le emulsifier ka litlolo le litlolo, hape e le filimi ea pele ea marotholi a mahlo.Indastering ea lijo, e sebelisoa e le seteifatsi, se tsitsang, le se emulsifier ka lisoseng, moaparong le lihlahisoa tse ling tsa lijo.Ka indasteri ea kaho, e sebelisoa e le setlamo sa samente le seretse, hape e le sekontiri se thibelang metsi bakeng sa marako le fatše.

HPMC ke thepa e bolokehileng le e seng chefo e amohetsoeng ke US Food and Drug Administration (FDA) hore e sebelisoe lijong, meriana le litlolo.E boetse e amohetsoe ke European Union (EU) bakeng sa tšebeliso ea lijo le meriana.