Focus on Cellulose ethers

Ọkwa nri sodium carboxymethyl cellulose (CMC)

A na-amata sodium carboxymethyl cellulose dị ka ihe mgbakwunye nri dị nchebe. A nakweere ya na obodo m na 1970s ma jiri ya mee ihe na 1990s. Ọ bụ cellulose kasị eji na nke kasị ukwuu n'ụwa taa.

Isi ojiji

A na-eji ya dị ka onye na-ebu ibu na ụlọ ọrụ nri, dị ka onye na-ebu ọgwụ na ụlọ ọrụ ọgwụ, yana dịka onye na-ejikọta ya na ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ dịghachi ndụ na ụlọ ọrụ kemịkalụ kwa ụbọchị. N'ime ụlọ ọrụ na-ebi akwụkwọ na ịcha akwa, a na-eji ya dị ka colloid nchebe maka onye na-emepụta ihe na mpempe akwụkwọ, wdg. Enwere ike iji ya dị ka akụkụ nke mmiri na-agbaji mmanụ na ụlọ ọrụ petrochemical. Enwere ike ịhụ na sodium carboxymethyl cellulose nwere ọtụtụ ihe eji eme ihe.

Ngwa nke CMC na nri

FAO na WHO kwadoro iji CMC dị ọcha na nri. A kwadoro ya ka emechara nyocha na nyocha nke usoro ndu na toxicological siri ike. Usoro nchekwa nchekwa mba ụwa (ADI) bụ 25mg/(kg·d) , ya bụ, ihe dịka 1.5 g/d kwa onye. A kọwapụtara na ọ dịghị mmeghachi omume nsí mgbe oriri ule ruru kilogram 10. CMC abụghị naanị ezigbo emulsion stabilizer na thickener na ngwa nri, kamakwa ọ nwere ezigbo oyi na nkwụsi ike na-agbaze, ma nwee ike melite ekpomeekpo nke ngwaahịa ahụ ma gbatịa oge nchekwa. Usoro ọgwụgwọ na mmiri ara ehi soy, ice cream, ice cream, jelii, ihe ọṅụṅụ na nri mkpọ bụ ihe dịka 1% ruo 1.5%. CMC nwekwara ike na-etolite a anụ emulsion dispersion na mmanya, soy sauce, akwukwo nri mmanụ, mkpụrụ osisi, gravy, akwukwo nri ihe ọṅụṅụ, wdg The onunu ogwu bụ 0,2% ka 0,5%. Karịsịa, ọ nwere magburu onwe emulsifying Njirimara maka anụmanụ na akwukwo nri mmanụ, protein na aqueous ngwọta, na-enyere ya na-etolite a homogeneous emulsion na anụ Njirimara. N'ihi nchekwa ya na ntụkwasị obi ya, ụkpụrụ ADI anaghị egbochi usoro ọgwụgwọ ya. A na-emepe CMC n'ọhịa nri, na n'afọ ndị na-adịbeghị anya, a na-eme nchọpụta banyere ntinye nke sodium carboxymethyl cellulose na mmepụta mmanya.


Oge nzipu: Nov-08-2022
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