Uyini umehluko phakathi kwe-CMC ne-xanthan gum

1. Uhlolojikelele kanye Nemvelaphi

1.1.Carboxymethyl Cellulose (CMC):

I-CMC iwumphumela we-cellulose owenziwe ngokushintsha amakhemikhali i-cellulose yemvelo etholakala ezindongeni zamaseli ezitshalo, njenge-pulp yokhuni noma imicu kakotini. Ngenqubo ebizwa ngokuthi i-carboxymethylation, amaqembu e-hydroxyl kumgogodla we-cellulose athathelwa indawo ngamaqembu e-carboxymethyl, okuwenza ancibilike emanzini futhi akwazi ukwenza izixazululo ze-viscous.

 

1.2.Xanthan Gum:

I-Xanthan gum iyi-polysaccharide encane ekhiqizwa yi-bacterium i-Xanthomonas campestris ngesikhathi sokuvutshelwa kwe-glucose, i-sucrose, noma i-lactose. Ngemva kokuvutshelwa, ushingamu uyawa (ngokuvamile kusetshenziswa i-isopropyl alcohol), yomiswe, futhi igaywe ibe yimpushana.

 

1.3.Umehluko Obalulekile:

I-CMC ithathwe esitshalweni futhi iguqulwe ngamakhemikhali, kuyilapho i-xanthan gum ihlanganiswa nge-microbially ngokuvutshelwa. Lo mehluko unomthelela ekwakhiweni kwawo, ukusebenza kwawo, kanye nokucatshangelwa kokulawula (isb, ekulebulani kokudla okuphilayo).

 

2. Isakhiwo Samakhemikhali

2.1.Isakhiwo se-CMC:

I-CMC inomgogodla we-cellulose oqondile onamaqembu e-carboxymethyl esikhundleni. Isakhiwo sayo samakhemikhali siyafana, futhi i-degree of substitution (DS)—okungukuthi, isilinganiso senani lamaqembu e-carboxymethyl ngeyunithi ngayinye ye-anhydroglucose—angalawulwa ukuze kulungiswe ukunyibilika nokubonakala kwayo.

 

2.2.Isakhiwo se-Xanthan Gum:

I-Xanthan gum inesakhiwo esiyinkimbinkimbi. Iqukethe umgogodla ofana ne-cellulose namaketanga aseceleni e-trisaccharide ahlanganiswe ne-mannose ne-glucuronic acid. Lesi sakhiwo esiyingqayizivele sinomthelela ekunciphiseni okuphawulekayo kwe-shear-thinning kanye nokuzinza.

 

2.3.Umehluko Obalulekile:

I-CMC inesakhiwo esilula, esinomugqa, kuyilapho i-xanthan gum inesakhiwo esinamagatsha, esiholela ekuzinzeni okungcono ngaphansi kwezimo ezihlukene ezifana ne-pH, izinga lokushisa, namandla okugunda.

 

3.Izakhiwo Ezisebenzayo

Impahla	I-CMC	Xanthan Gum
Ukuncibilika	Incibilika kakhulu emanzini	Incibilika kakhulu emanzini
Ukuqina kwe-pH	Izinzile kokungathathi hlangothi ukuya ku-pH ene-alkali kancane	Izinzile kakhulu kububanzi be-pH ebanzi
Ukubekezela Kwezinga Lokushisa	Izwela ukushisa okuphezulu (ukonakala ku->80°C)	Ukuzinza okuhle kakhulu kwe-thermal
Shear Behaviour	I-Newtonian (i-viscosity ihlala ingashintshi)	I-Shear-thinning (i-viscosity iyancipha nge-shear)
I-Freeze-Thaw Stability	Kubi ukuya kumaphakathi	Kuhle kakhulu

Umehluko Obalulekile:

I-Xanthan gum isebenza kangcono ngaphansi kwezimo ezidlulele zokucutshungulwa, iyenze ifaneleke kakhulu emikhiqizweni edinga imijikelezo yokuqandisa, ukuvala inzalo, noma ukuhluka kwe-pH.

 

4. Izicelo

4.1.CMC Isebenzisa:

Imboni Yokudla: Isetshenziswa ku-ayisikhilimu, izinto ezibhakwayo, amasoso, okokugqoka, kanye neziphuzo ukunikeza i-viscosity, i-mouthfeel, kanye nokumiswa.

Ezemithi: Isebenza njenge-binder kumaphilisi kanye ne-thickener oketshezini oluthathwa ngomlomo.

Izimonyo: Isetshenziswa ekugcokeni nasekuxubeni kwamazinyo ukuze kuhambisane nokuzinza.

Imboni: Kuqashwe uketshezi lokumba, ukukhiqizwa kwephepha, nezihlanzi.

 

4.2.I-Xanthan Gum Isebenzisa:

Imboni Yokudla: Isetshenziswa kakhulu ekubhakeni okungenagluten, okokugqoka kwamasaladi, amasoso, nezinye izindlela zobisi ukuze kuqiniswe futhi kuqiniswe.

I-Pharmaceuticals: Isebenza njenge-ejenti elengayo kumasiraphu nama-topical formulations.

Izimonyo: Iqinisa ama-emulsion futhi ithuthukise ukubukeka kwemikhiqizo yokunakekelwa kwesikhumba.

Imboni: Isetshenziswa ekubuyiseni uwoyela okuthuthukisiwe, ezolimo, nopende.

 

4.3.Umehluko Obalulekile:

Nakuba kokubili kuguquguquka, i-xanthan gum ikhethwa ezinhlelweni zokusebenza eziyinselele ngenxa yokuqina kwayo ngaphansi kwezimo zokucindezeleka.

 

5. I-Allergenicity kanye nokulebula

Kokubili i-CMC ne-xanthan gum ngokuvamile zibonwa njengeziphephile (GRAS) yi-US FDA futhi zigunyazwe ukusetshenziswa kokudla emhlabeni jikelele. Nokho:

 

I-CMC ithathwa njenge-hypoallergenic futhi ilungele izinhlelo eziningi zokudla.

 

I-Xanthan Gum, nakuba nayo iphephile, ivutshelwa kushukela okungenzeka uthathwe ezintweni ezivamile zokungezwani komzimba ezifana nommbila noma isoya. Abantu abangezwani kakhulu noma abangezwani kahle bangase basabele ngaphandle uma kusetshenziswa izinguqulo ezingenazo izinto ezingezwani nomzimba.

 

Emikhiqizweni ye-organic noma enelebula ehlanzekile, i-xanthan gum kwesinye isikhathi yamukelwa kakhulu ngenxa yemvelaphi yayo "yokuvubela kwemvelo", kuyilapho i-CMC ingase igwenywe ngoba iguquliwe.