He aha nā hana o ka haku mele ʻana o ka cellulose ether

E wehewehe:

Nā ʻano meaʻai e pili ananā ethers cellulose

Kahua loea：

Pili kēia mea i hana ʻia i nā ʻano meaʻai i loaʻa nā cellulose ethers.

ʻenehana hope：

Ua ʻike lōʻihi ʻia ka hoʻokomo ʻana i nā ethers cellulose i loko o nā meaʻai, ʻoi aku hoʻi nā meaʻai i hana ʻia, e hoʻomaikaʻi i nā waiwai like ʻole e like me ke kūpaʻa hau-thaw a/a i ʻole ke ʻano, a i ʻole e hoʻomaikaʻi i ka paʻa i ka wā o ka hana ʻana, hana ʻia me ka mīkini a palai ʻia paha. Hōʻike ka noi palapala Sila Nui Pelekane GB 2 444 020 i kēlā mau meaʻai e loaʻa ana kahi ether cellulose nonionic e like me methylcellulose, hydroxypropyl cellulose, a i ʻole hydroxypropyl methylcellulose. Loaʻa iā Methylcellulose a me hydroxypropyl methylcellulose nā "thermos reversible gelling properties". Ua wehewehe pono ʻia i ka wā e hoʻomehana ʻia ai kahi hopena wai o methylcellulose a i ʻole hydroxypropyl methylcellulose, e maloʻo ka hui methoxy hydrophobic i loko o ka mole, a lilo ia i gel wai. Ma ka ʻaoʻao ʻē aʻe, i ka wā e hoʻomaʻalili ʻia ai ka gel hopena, e hoʻomaʻū hou ʻia nā hui methoxy hydrophobic, ma laila e hoʻi ai ka gel i ka hopena wai mua.

Hōʻike ka Palapala Sila Nui ʻEulopa EP I 171 471 i ka methylcellulose he mea pono loa ia i nā ʻano meaʻai paʻa e like me nā mea kanu paʻa, ka ʻiʻo, a me nā patties soybean ma muli o kona ikaika gel i hoʻonui ʻia. Hāʻawi ka methylcellulose i ka paʻa a me ka pili ʻana i ka ʻano meaʻai paʻa, no laila e hāʻawi ana i kahi manaʻo nahu maikaʻi i nā mea kūʻai e ʻai ana i ka ʻano meaʻai i hana ʻia. Ke hoʻoheheʻe ʻia i loko o ka wai anuanu (e laʻa, 5°C a i ʻole haʻahaʻa) ma mua a ma hope paha o ka hui ʻana me nā mea ʻē aʻe o ka ʻano meaʻai, hiki i ka methylcellulose soy i kona hiki piha e hāʻawi i nā ʻano meaʻai paʻa me ka paʻa a me ka pili maikaʻi.

Eia nō naʻe, i kekahi mau hihia, ʻaʻole kūpono ka hoʻohana ʻana i ka wai anuanu no ka mea hana o ka meaʻai. No laila, he mea makemake ʻia e hāʻawi i nā ethers cellulose e hāʻawi i nā meaʻai paʻa me ka paʻakikī maikaʻi a me ke kuʻikahi ʻoiai ke hoʻoheheʻe ʻia nā ethers cellulose i loko o ka wai me kahi mahana o ka lumi.

ʻO ka Hydroxyalkyl methylcellulose e like me ka hydroxypropyl methylcellulose (ka mea i ʻike ʻia he pono i nā ʻano meaʻai) ua ʻike ʻia he modulus mālama haʻahaʻa i hoʻohālikelike ʻia me ka methylcellulose. ʻO nā Hydroxyalkyl methylcelluloses e hōʻike ana i ka modulus mālama haʻahaʻa ʻaʻole lākou e hana i nā gels ikaika. Pono nā ʻano kiʻekiʻe no nā gels nāwaliwali (Haque, A; Richardson; Morris, ER, Gidley, MJ lāua ʻo Caswell, DC ma Carbohydrate Polymers22 (1993) p.175; a me Haque, A lāua ʻo Morris, ER1nCarbohydrate Polymers22 (1993) p.161).

Ke hoʻokomo ʻia nā hydroxyalkyl methylcelluloses e like me ka hydroxypropyl methylcellulose (nāna e hōʻike ana i ka modulus mālama haʻahaʻa) i nā haku mele meaʻai paʻa, ʻaʻole lawa ka paʻakikī a me ke kuʻikahi no kekahi mau noi.

ʻO ka pahuhopu o kēia mea i hana ʻia, ʻo ia ka hoʻolako ʻana i ka hydroxyalkyl methylcellulose, ʻoiai ʻo ka hydroxypropyl methylcellulose, kahi e like me nā hydroxyalkyl methylcelluloses i ʻike ʻia, e like me ka hydroxypropyl methylcellulose. I ka hoʻohālikelike ʻana, hoʻolako ʻia nā meaʻai paʻa me ka paʻa a me/a i ʻole ke kuʻikahi i hoʻomaikaʻi ʻia.

ʻO kahi pahuhopu makemake ʻia o kēia mea i hana ʻia, ʻo ia ka hoʻolako ʻana i ka hydroxyalkyl methylcellulose, ʻoiai ʻo ka hydroxypropyl methylcellulose, ka mea e hāʻawi ana i nā ʻano meaʻai paʻa me ka paʻakikī maikaʻi a/a i ʻole ke kuʻikahi ʻoiai inā hoʻoheheʻe ʻia ka hydroxyalkyl methylcellulose i ka wai me kahi mahana o ka lumi.

ʻO ka mea kupanaha, ua ʻike ʻiahydroxyalkyl methylcellulose, ʻoiai ka hydroxypropyl methylcellulose, hiki ke hoʻohana ʻia i ka hoʻomākaukau ʻana o nā meaʻai paʻa. I ka hoʻohālikelike ʻia me nā meaʻai paʻa, ʻoi aku ka paʻakikī a me/a i ʻole ke kūpilikiʻi o nā meaʻai paʻa i ʻike ʻia.

He mea kupanaha hoʻi, ua ʻike ʻia ʻaʻole pono e hoʻoheheʻe ʻia kekahi mau hydroxyalkyl methylcelluloses, ʻoiai ʻo hydroxypropyl methylcellulose, i loko o ka wai anuanu e hāʻawi i nā ʻano meaʻai paʻa me ka paʻa maikaʻi a/a i ʻole ke kuʻikahi.