Hoʻohana i ka methyl cellulose i ka meaʻai

ʻO ka cellulose ka polymer kūlohelohe nui loa i ke ʻano. He hui polimer laina i hoʻohui ʻia e D-glucose ma o nā paʻa β-(1-4) glycosidic. Hiki i ke kiʻekiʻe o ka polymerization o cellulose ke hiki i 18,000, a hiki i ke kaumaha molecular ke hiki i nā miliona.

Hiki ke hana ʻia ka cellulose mai ka pulp lāʻau a i ʻole ka pulupulu, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai, akā hoʻoikaika ʻia me ka alkali, etherified me ka methylene chloride a me ka propylene oxide, holoi ʻia me ka wai, a maloʻo e loaʻa i ka wai-soluble methyl cellulose (MC) a ʻO ka hydroxypropyl methylcellulose (HPMC), ʻo ia hoʻi, hoʻohana ʻia ka methoxy a me ka hydroxypropoxy e pani i nā pūʻulu hydroxyl ma nā kūlana C2, C3 a me C6 o ka glucose e hana ai i nā etera cellulose nonionic.

ʻO ka Methyl cellulose he mea ʻala ʻole, keʻokeʻo a keʻokeʻo keʻokeʻo keʻokeʻo keʻokeʻo i ka nānā aku, a ʻo ka pH o ka hopena ma waena o 5-8.

ʻO ka maʻiʻo methoxyl o ka methylcellulose i hoʻohana ʻia ma ke ʻano he meaʻai meaʻai maʻamau ma waena o 25% a me 33%, ʻo ke degere kūpono o ka hoʻololi ʻana ʻo 17-2.2, a ʻo ka degere theoretical o ka hoʻololi ʻana ma waena o 0-3.

Ma ke ʻano he meaʻai, ʻo ka methoxyl content o hydroxypropyl methylcellulose ma waena o 19% a me 30%, a ʻo ka hydroxypropoxyl content ma waena o 3% a me 12%.

Nā hiʻohiʻona hana

gel hiki ke hoʻololi ʻia

Methylcellulose/Hydroxypropylmethylcellulose loaʻa nā waiwai gelling thermoreversible.

Pono e hoʻoheheʻe ʻia ka Methyl cellulose/hydroxypropyl methyl cellulose i ka wai anuanu a i ʻole ka wai wela maʻamau. Ke hoʻomehana ʻia ka wai wai, e hoʻomau ka emi ʻana o ka viscosity, a hiki i ka gelation ke hiki i kahi mahana. I kēia manawa, methyl cellulose/hydroxypropyl methyl cellulose Ua hoʻomaka ka hoʻololi akaka o propyl methylcellulose i keʻokeʻo waiu opaque, a ua piʻi koke ka viscosity.

Kapa ʻia kēia mahana ʻo ka wela hoʻomaka gel thermal. Ke maloʻo ka gel, hāʻule koke ka viscosity. ʻO ka mea hope loa, ʻo ke kaʻe o ka viscosity i ka wā e hoʻoluʻu ai e kūlike me ka pā viscosity wela mua, huli ka gel i mea hoʻonā, lilo ka hopena i gel i ka wā i wela ai, a ʻo ke kaʻina hana o ka huli ʻana i kahi hopena ma hope o ka hoʻoluʻu ʻana e hoʻohuli ʻia a hana hou.

ʻO ka Hydroxypropyl methylcellulose he kiʻekiʻe ka wela o ka hoʻomaka ʻana o ka gelation ma mua o ka methylcellulose a me ka ikaika gel haʻahaʻa.

Poihana

1. Nā waiwai hana kiʻiʻoniʻoni

ʻO nā kiʻiʻoniʻoni i hoʻokumu ʻia e ka methylcellulose/hydroxypropylmethylcellulose a i ʻole nā ​​kiʻiʻoniʻoni i loaʻa nā mea ʻelua hiki ke pale pono i ka neʻe ʻana o ka aila a me ka nalowale wai, no laila e hōʻoiaʻiʻo ai i ka paʻa o ke ʻano meaʻai.

2. Emulsifying waiwai

Hiki i ka Methylcellulose/Hydroxypropylmethylcellulose ke hoʻemi i ka ʻili o ka ʻili a hoʻemi i ka hōʻiliʻili momona no ka paʻa ʻana o ka emulsion.

3. Ka mana poho wai

Hiki i ka Methylcellulose/Hydroxypropylmethylcellulose ke hoʻomalu pono i ka neʻe ʻana o ka wai o ka meaʻai mai ka hau a hiki i ka mahana maʻamau, a hiki ke hōʻemi i ka pōʻino, ka hau crystallization a me nā loli ʻano o ka meaʻai i hoʻokumu ʻia e ka refrigeration.

4. Hana hoʻopili

Hoʻohana ʻia ʻo Methylcellulose/Hydroxypropylmethylcellulose i nā huina kūpono e hoʻomohala ai i ka ikaika paʻa maikaʻi loa i ka wā e mālama ana i ka hoʻokuʻu ʻana i ka ʻono.

5. Hoʻopaneʻe ka hana hydration

Hiki i ka hoʻohana ʻana i ka methylcellulose / hydroxypropylmethylcellulose ke hōʻemi i ka viscosity pumping o ka meaʻai i ka wā o ka hoʻomaʻamaʻa wela, a laila e hoʻomaikaʻi nui ai i ka hana hana. Hoʻemi i ka hoʻoheheʻe ʻana o ka paila a me nā mea hana, hoʻolalelale i ke kaʻina hana, hoʻomaikaʻi i ka wela wela, a hoʻemi i ka hoʻokumu ʻana i ka waihona.

6. Hana mānoanoa

Hiki ke hoʻohana ʻia ka Methylcellulose/Hydroxypropylmethylcellulose i ka hui pū ʻana me ka starch e hana i kahi hopena synergistic, hiki ke hoʻonui nui i ka viscosity a hiki i kahi pae hoʻohui haʻahaʻa loa.

7. Paʻa ka hopena ma lalo o nā kūlana acidic a me ka waiʻona

Methylcellulose/Hydroxypropylmethylcellulose solutions paʻa a hiki i ka pH 3 a paʻa maikaʻi i nā haʻina i loko o ka waiʻona.

Hoʻohana i ka methyl cellulose i ka meaʻai

ʻO Methyl cellulose kahi ʻano non-ionic cellulose ether i hana ʻia me ka hoʻohana ʻana i ka cellulose kūlohelohe e like me ka mea maka a hoʻololi i nā pūʻulu hydroxyl ma ka ʻāpana glucose anhydrous i cellulose me nā pūʻulu methoxy. Loaʻa iā ia ka paʻa wai, mānoanoa, emulsification, hoʻokumu kiʻiʻoniʻoni, adaptability Wide pH ākea a me ka hana ʻili a me nā hana ʻē aʻe.

ʻO kāna hiʻohiʻona kūikawā he thermally reversible gelation, ʻo ia hoʻi, ʻo kona ʻano wai e hana i ka gel ke hoʻomehana ʻia, a huli hoʻi i kahi hopena i ka wā i hoʻomaha ʻia. Hoʻohana nui ʻia ia i nā meaʻai i hoʻomoʻa ʻia, nā meaʻai palai, nā mea ʻono, nā kīʻaha, nā soup, nā mea inu, a me nā mea ʻala. a me ka candy.

ʻO ka super gel i loko o ka methyl cellulose ka ikaika gel ma mua o ʻekolu mau manawa o ka methyl cellulose thermal gels maʻamau, a loaʻa iā ia nā waiwai adhesive super ikaika, paʻa wai a me nā waiwai paʻa.

Hāʻawi ia i nā meaʻai i hoʻoponopono hou ʻia e mālama i ko lākou ʻano paʻa i makemake ʻia a me ka ʻoluʻolu o ka waha i ka wā a no ka manawa lōʻihi ma hope o ka hoʻomaʻamaʻa hou ʻana. ʻO nā noi maʻamau nā meaʻai wikiwiki-hau, nā meaʻai meaʻai, ka ʻiʻo i hoʻohui ʻia, nā iʻa a me nā huahana iʻa a me nā sausages haʻahaʻa momona.