ʻO ka ʻokoʻa ma waena o HPMC me methylcellulose

Hoʻohana mau ʻia ka HPMC (Hydroxypropyl methylcellulose) a me ka methylcellulose i ka ʻoihana meaʻai, lāʻau lapaʻau, a me nā ʻoihana mālama pilikino e like me nā mānoanoa, stabilizers, emulsifiers, a me nā mea paʻa. ʻOiai kaʻana like lākou i kekahi mau mea like, aia kekahi mau ʻokoʻa ma waena o HPMC a me methylcellulose:

1. Hoʻolālā kemika: Loaʻa ʻia ka HPMC a me ka methylcellulose mai cellulose, kahi polysaccharide kūlohelohe. ʻO ka HPMC he cellulose i hoʻololi ʻia, kahi i hoʻololi ʻia ai kekahi o nā pūʻulu hydroxyl ma ka mole cellulose me nā hui hydroxypropyl. ʻO ka Methylcellulose kekahi cellulose i hoʻololi ʻia, kahi i hoʻololi ʻia ai kekahi o nā pūʻulu hydroxyl ma ka mole cellulose me nā hui methyl.
2. Solubility: ʻOi aku ka maʻalahi o ka HPMC i ka wai ma mua o ka methylcellulose, kahi e maʻalahi ai ka hoʻoheheʻe ʻana a hoʻohana ʻia i loko o nā hana.
3. Viscosity: He ʻoi aku ka viscosity o ka HPMC ma mua o ka methylcellulose, ʻo ia hoʻi, ʻoi aku ka maikaʻi o ka mānoanoa o nā waiwai a hiki ke hana i kahi ʻano mānoanoa o nā formulations.
4. Gelation: Hiki i ka Methylcellulose ke hana i ka gel i ka wā i wela ai a laila hoʻomaha, ʻoiai ʻaʻole i loaʻa iā HPMC kēia waiwai.
5. Uku: ʻOi aku ke kumukūʻai o ka HPMC ma mua o ka methylcellulose.

Ma ke ʻano holoʻokoʻa, ʻo ka koho ma waena o ka HPMC a me ka methylcellulose e hilinaʻi i ka noi kikoʻī a me nā waiwai i makemake ʻia o ka hoʻokumu ʻana. Hiki ke koho ʻia ka HPMC no kona hoʻoheheʻe ʻana a me ka paʻa ʻana o ka mānoanoa, ʻoiai ʻo ka methylcellulose ke makemake ʻia no kona hiki ke hana i nā gels.