Kodi hydroxypropyl methylcellulose amapangidwa kuchokera ku chiyani?

Hydroxypropyl methylcellulose (HPMC) ndi polima wopangidwa, wosungunuka m'madzi wotengedwa ku cellulose. Ndi ufa woyera, wopanda fungo, wopanda kukoma womwe umagwiritsidwa ntchito kwambiri ngati thickening agent, emulsifier, film kale, ndi stabilizer m'mafakitale ambiri, kuphatikizapo mankhwala, chakudya, zodzoladzola, ndi zomangamanga.

HPMC imapangidwa pochita ma cellulose ndi propylene oxide ndi methyl chloride. Cellulose ndi polysaccharide yomwe ndi gawo lalikulu la makoma a ma cell a zomera ndipo ndi gawo lochuluka kwambiri padziko lapansi. Propylene oxide ndi organic pawiri ndi mankhwala chilinganizo CH3CHCH2O. Methyl chloride ndi gasi wopanda mtundu, woyaka ndi fungo lokoma.

Kachitidwe ka cellulose yokhala ndi propylene oxide ndi methyl chloride kumapangitsa kupanga magulu a hydroxypropyl, omwe amamangiriridwa ku ma cellulose. Njira imeneyi imatchedwa hydroxypropylation. Magulu a hydroxypropyl amawonjezera kusungunuka kwa cellulose m'madzi, zomwe zimapangitsa kuti zikhale zosavuta kugwiritsa ntchito pazinthu zosiyanasiyana.

HPMC chimagwiritsidwa ntchito mu makampani mankhwala monga binder, disintegrant, ndi suspending wothandizira mu mapiritsi ndi makapisozi. Amagwiritsidwanso ntchito ngati thickener ndi emulsifier mu zodzoladzola ndi mafuta odzola, komanso monga filimu wakale mu madontho diso. M'makampani azakudya, amagwiritsidwa ntchito ngati chokometsera, chokhazikika, ndi emulsifier mu sauces, mavalidwe, ndi zakudya zina. M'makampani omanga, amagwiritsidwa ntchito ngati chomangira mu simenti ndi matope, komanso ngati zokutira zosagwira madzi pamakoma ndi pansi.

HPMC ndi zinthu zotetezeka komanso zopanda poizoni zomwe zimavomerezedwa ndi US Food and Drug Administration (FDA) kuti zigwiritsidwe ntchito pazakudya, mankhwala, ndi zodzoladzola. Imavomerezedwanso ndi European Union (EU) kuti igwiritsidwe ntchito muzakudya ndi zamankhwala.