Focus on Cellulose ethers

Fa'aaogāina ole sodium carboxymethyl cellulose ma le hydroxyethyl cellulose ile vaila'au i aso ta'itasi

Fa'aaogāina ole sodium carboxymethyl cellulose ma le hydroxyethyl cellulose ile vaila'au i aso ta'itasi

Carboxymethylcellulose sodium (CMC-Na) o se mea faʻaola, o le carboxymethylated derivative o cellulose, ma le sili ona taua ionic cellulose gum. O le Sodium carboxymethyl cellulose e masani lava o le anionic polymer compound saunia e ala i le taliina o le cellulose faanatura i le alkali ma le monochloroacetic acid, faatasi ai ma le mamafa mole mai le tele o afe i le miliona. CMC-Na o le paʻepaʻe fibrous poʻo le paʻu paʻu, e leai se manogi, leai se tofo, hygroscopic, faigofie ona faʻasalalau i totonu o le vai e fai ai se vaifofo manino colloidal.

Pe a le fa'aituau pe alkaline, o le vaifofo o se vai maualuga-viscosity. Stable i vailaau, malamalama ma vevela. Ae ui i lea, o le vevela e gata i le 80°C, ma afai e vevela mo se taimi umi i luga ole 80°C, o le viscosity o le a faaitiitia ma o le a le mafai ona solu i le vai.

Sodium carboxymethyl cellulose o se ituaiga mafiafia foi. Ona o le lelei o mea aoga, ua faʻaaogaina lautele i le alamanuia o meaʻai, ma ua faʻalauteleina ai foi le televave ma le soifua maloloina o le atinaʻeina o meaʻai i se tulaga patino. Mo se faʻataʻitaʻiga, ona o lona faʻamalositino ma le faʻafefeteina, e mafai ona faʻaaogaina e faʻamautu ai mea inu yogurt ma faʻateleina le viscosity o le yogurt system; ona o lona hydrophilicity ma rehydration meatotino, e mafai ona faʻaaogaina e faʻaleleia ai le taumafaina o pasta e pei o falaoa ma falaoa ausa. lelei, fa'aumiumi le fa'aola o oloa pasta ma fa'aleleia le tofo.

Ona o loʻo i ai se aʻafiaga o le gel, e aoga i meaʻai e fausia ai se gel sili atu, o lea e mafai ai ona faʻaaogaina e fai ai jelly ma siamu; e mafai fo'i ona fa'aaogaina e fai ma mea e fa'apipi'i ai mea'ai, fa'afefiloi ma isi mea mafiafia, ma fa'asalalau I luga o nisi o mea'ai, e mafai ona fa'atumauina ai mea'ai fou i le tele, ma talu ai o se mea'ai, e le afaina ai tagata. soifua maloloina. O le mea lea, o mea'ai-grade CMC-Na, e avea o se meaʻai faʻaopoopo lelei, e faʻaaogaina lautele i le gaosiga o meaʻai i totonu o meaʻai.

 

Hydroxyethylcellulose (HEC), vailaʻau faʻataʻitaʻi (C2H6O2)n, o se lanu paʻepaʻe poʻo se lanu samasama, e leai se manogi, e leai se mea oona poʻo se paʻu paʻu malosi, e aofia ai le cellulose alkaline ma le ethylene oxide (poʻo le chlorohydrin) Saunia e le etherification reaction, e patino i le non- ionic soluble cellulose ethers. Ona o le HEC o loʻo i ai meatotino lelei o le mafiafia, faʻamalolo, faʻasalalau, emulsifying, fusifusia, ata tifaga, puipuia le susu ma tuʻuina atu colloid puipuia.

E faigofie ona solu ile vai ile 20°C. E le mafai ona fa'afefe i so'o so'o masani. O loʻo i ai galuega o le mafiafia, faʻamalolo, fusifusia, emulsifying, faʻasalalau, ma tausia le susu. E mafai ona saunia ni vaifofo i laina viscosity eseese. E sili ona lelei le soluble masima mo electrolytes.

O le viscosity e suia laʻititi i le tele o le PH value 2-12, ae o le viscosity e faʻaitiitia i tua atu o lenei laina. O loʻo i ai meatotino o le mafiafia, faʻagata, fusifusia, emulsifying, faʻasalalau, tausia le susu ma puipuia colloid. E mafai ona saunia ni vaifofo i laina viscosity eseese.


Taimi meli: Feb-06-2023
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