Chaza:
Iintlobo zokutya eziqukaii-ether ze-cellulose
Intsimi yobugcisa:
Le nto intsha inxulumene nokutya okuqulethe ii-cellulose ethers.
Imvelaphi yobugcisa:
Kudala kwaziwa ngokufaka ii-cellulose ethers kwizinto zokutya, ingakumbi izinto zokutya ezicutshungulwayo, ukuphucula iipropati ezahlukeneyo ezifana nokuzinza kwe-freeze-thaw kunye/okanye ubume, okanye ukuphucula ukuqina ngexesha lokwenziwa, zicutshungulwa ngoomatshini okanye ziqhotswe. Isicelo selungelo lomenzi saseBritane i-GB 2 444 020 sityhila ezo zinto zokutya eziquka i-nonionic cellulose ether efana ne-methylcellulose, i-hydroxypropyl cellulose, okanye i-hydroxypropyl methylcellulose. I-Methylcellulose kunye ne-hydroxypropyl methylcellulose "zineempawu ze-thermos reversible gelling". Kuchazwa ngokukodwa ukuba xa isisombululo samanzi se-methylcellulose okanye i-hydroxypropyl methylcellulose sishushu, iqela le-hydrophobic methoxy elikwi-molecule liyaphelelwa ngamanzi emzimbeni, kwaye liba yi-aqueous gel. Kwelinye icala, xa i-gel ephumayo ipholile, amaqela e-hydrophobic methoxy ayaphinda afakwe amanzi emzimbeni, apho i-gel ibuyela kwisisombululo samanzi sokuqala.
Ilungelo lomenzi laseYurophu i-EP I 171 471 lityhila i-methylcellulose eluncedo kakhulu kwizithako zokutya okuqinileyo ezifana nemifuno eqinileyo, inyama, kunye neepatties zesoya ngenxa yamandla ayo aphezulu ejeli. I-methylcellulose inika ukuqina okuphuculweyo kunye nokunamathelana kwizithako zokutya okuqinileyo, ngaloo ndlela inika imvakalelo entle yokuluma kubathengi abatya umxube wokutya okucutshungulweyo. Xa inyibilikisiwe emanzini abandayo (umz., 5°C okanye ngaphantsi) ngaphambi okanye emva kokuxuba nezinye izithako zomxube wokutya, i-methylcellulose soy ifikelela kwisakhono sayo esipheleleyo sokubonelela ngezithako zokutya okuqinileyo kunye nobuchule obuhle bokuqina kunye nokunamathelana.
Nangona kunjalo, kwezinye iimeko, ukusetyenziswa kwamanzi abandayo akulunganga kumvelisi womxube wokutya. Ngoko ke, kuyacetyiswa ukuba kubonelelwe ngee-cellulose ethers ezibonelela ngemixholo yokutya okuqinileyo enobunzima obuhle kunye nokunamathelana nokuba ii-cellulose ethers zinyibilikisiwe emanzini anobushushu obumalunga negumbi.
I-hydroxyalkyl methylcellulose efana ne-hydroxypropyl methylcellulose (ekwaziwa ngokuba luncedo kwimixube yokutya) yaziwa ngokuba ne-modulus yokugcina ephantsi xa ithelekiswa ne-methylcellulose. I-hydroxyalkyl methylcellulose ebonisa i-modulus yokugcina ephantsi ayenzi ii-gels ezinamandla. Uxinzelelo oluphezulu luyafuneka kwii-gels ezibuthathaka (Haque, A; Richardson; Morris, ER, Gidley, MJ kunye noCaswell, DC kwiCarbohydrate Polymers22 (1993) p.175; kunye noHaque, A kunye noMorris, ER1nCarbohydrate Polymers22 (1993) p.161).
Xa i-hydroxyalkyl methylcellulose ezifana ne-hydroxypropyl methylcellulose (ebonisa i-modulus yokugcina ephantsi) ifakwa kwi-solid food compositions, ubulukhuni bayo kunye nokuhambelana kwayo akwanele ukusetyenziswa kwezinye izinto.
Yinjongo yale mveliso ikhoyo ukubonelela nge-hydroxyalkyl methylcellulose, ingakumbi i-hydroxypropyl methylcellulose, ethelekiswa ne-hydroxyalkyl methylcellulose ezaziwayo, ezifana ne-hydroxypropyl methylcellulose. Ngokwahlukileyo koko, izinto zokutya okuqinileyo zibonelelwa ngokuqina okuphuculweyo kunye/okanye ukuhambelana.
Eyona nto ikhethwayo kule mveliso kukubonelela nge-hydroxyalkyl methylcellulose, ingakumbi i-hydroxypropyl methylcellulose, ebonelela ngeemveliso zokutya okuqinileyo ezinobunzima obuhle kunye/okanye ukunamathelana nokuba i-hydroxyalkyl methylcellulose inyibilika emanzini anobushushu obufanayo begumbi.
Okumangalisayo kukuba, kufunyaniswe ukubai-hydroxyalkyl methylcellulose, ingakumbi i-hydroxypropyl methylcellulose, ingasetyenziswa ekulungiseleleni. Xa kuthelekiswa neendidi zokutya okuqinileyo, iindidi zokutya okuqinileyo ezaziwayo zinobunzima obuphezulu kunye/okanye ukunamathelana.
Kwakhona okumangalisayo kukuba, kufunyaniswe ukuba ezinye ii-hydroxyalkyl methylcellulose, ingakumbi i-hydroxypropyl methylcellulose, azidingi kunyibilikiswa emanzini abandayo ukuze zinike ukutya okuqinileyo okuqinileyo kunye/okanye okudibeneyo.
Ixesha leposi: Epreli-28-2024