Ndeapi mabasa ekugadzirwa kwechikafu che cellulose ether

Tsanangura:

Misanganiswa yezvekudya inosanganisiraethers dze cellulose

Munda wehunyanzvi:

Chigadzirwa ichi chine chekuita nekugadzirwa kwechikafu chine cellulose ethers.

Maitiro ekumashure:

Yagara ichizivikanwa nekubatanidza ma ether e cellulose muzvinhu zvekudya, kunyanya zvinhu zvekudya zvakagadzirwa, kuti ivandudze hunhu hwakasiyana-siyana hwakadai sekugadzikana kwechando-kunyunguduka uye/kana magadzirirwo, kana kuti kuvandudza kusimba panguva yekugadzira, kugadzirwa ne mechanically kana kukangwa. British patent application GB 2 444 020 inoratidza zvinhu zvekudya zvakadai zvinosanganisira nonionic cellulose ether yakaita semethylcellulose, hydroxypropyl cellulose, kana hydroxypropyl methylcellulose. Methylcellulose ne hydroxypropyl methylcellulose zvine "thermos reversible gelling properties". Zvinotsanangurwa zvakananga kuti kana mhinduro yemvura ye methylcellulose kana hydroxypropyl methylcellulose yapiswa, boka re hydrophobic methoxy riri mumorekuru rinopera mvura, uye rinova gel remvura. Kune rumwe rutivi, kana gel inobuda yatonhodzwa, mapoka e hydrophobic methoxy anowedzerwa mvura, uko gel inodzokera kune mhinduro yemvura yekutanga.

European Patent EP I 171 471 inoratidza methylcellulose iyo inobatsira zvikuru muzvinhu zvekudya zvakasimba zvakaita semiriwo yakasimba, nyama, uye soybean patties nekuda kwekuwedzera kwesimba rayo regel. Methylcellulose inoita kuti zvive nyore uye zvinobatana nechinhu chakasimba, zvichiita kuti vanhu vanodya chikafu chakagadziriswa vanzwe zvakanaka. Kana yanyungudutswa mumvura inotonhora (semuenzaniso, 5°C kana pasi) isati yasanganiswa nezvimwe zvinhu zvekudya, methylcellulose soy inosvika pakukwanisa kwayo kupa zvinhu zvekudya zvakasimba zvine simba uye zvinobatana zvakanaka.

Zvisinei, mune dzimwe nguva, kushandiswa kwemvura inotonhora hakubatsiri kune mugadziri wemusanganiswa wezvekudya. Saka, zvingava zvakanaka kupa cellulose ethers dzinopa musanganiswa wezvekudya zvakasimba nekuoma kwakanaka uye kubatana kunyangwe cellulose ethers dzakanyungudutswa mumvura ine tembiricha yemukamuri.

Hydroxyalkyl methylcellulose yakaita sehydroxypropyl methylcellulose (inozivikanwawo kuti inobatsira muzvinhu zvekudya) inozivikanwa kuti ine modulus shoma yekuchengetera kana ichienzaniswa nemethylcellulose. Hydroxyalkyl methylcelluloses ine modulus shoma yekuchengetera haiumbi magel akasimba. Kuwanda kwakanyanya kunodiwa kune magel asina simba (Haque, A; Richardson; Morris, ER, Gidley, MJ naCaswell, DC muCarbohydrate Polymers22 (1993) p.175; uye Haque, A naMorris, ER1nCarbohydrate Polymers22 (1993) p.161).

Kana mahydroxyalkyl methylcellulose akadai sehydroxypropyl methylcellulose (anoratidza modulus shoma yekuchengetera) akaiswa muzvikafu zvakasimba, kuomarara kwawo uye kubatana kwawo hazvina kukwana kuti zvishandiswe mune zvimwe zvinhu.

Chinangwa chekugadzirwa uku ndechekupa hydroxyalkyl methylcellulose, kunyanya hydroxypropyl methylcellulose, iyo inofananidzwa nehydroxyalkyl methylcellulose inozivikanwa, yakadai sehydroxypropyl methylcellulose. Kusiyana neizvi, zvinhu zvekudya zvakasimba zvinopihwa kusimba kwakawedzerwa uye/kana kubatana.

Chinangwa chikuru chekugadzirwa uku ndechekupa hydroxyalkyl methylcellulose, kunyanya hydroxypropyl methylcellulose, iyo inopa chikafu chakasimba chine kuoma kwakanaka uye/kana kubatana kunyangwe hydroxyalkyl methylcellulose. Izvi zvakafanana kana yakanyungudutswa mumvura ine tembiricha yemumba.

Zvinoshamisa kuti zvakawanikwa kutihydroxyalkyl methylcellulose, kunyanya hydroxypropyl methylcellulose, inogona kushandiswa mukugadzira. Zvichienzaniswa nemidziyo yechikafu chakasimba, michina yechikafu chakasimba inozivikanwa ine kuomarara kwakanyanya uye/kana kubatana kwakanyanya.

Zvinoshamisawo kuti zvakawanikwa kuti mamwe mahydroxyalkyl methylcellulose, kunyanya hydroxypropyl methylcellulose, haadi kunyungudutswa mumvura inotonhora kuti ape chikafu chakasimba chakasimba uye/kana kubatana zvakanaka.