Focus on Cellulose ethers

Iipropati kunye nezicelo zeMicrocrystalline Cellulose

01. Iipropati ze-microcrystalline cellulose

Iselulosi yeMicrocrystalline ayivumba, icwengile ngokugqithisileyo intonga emfutshane emhlophe, ubungakanani bayo bungamasuntswana angama-20-80 μm (i-microcrystalline cellulose kunye nobungakanani bekristale obuyi-0.2-2 μm libakala le-colloidal), kunye nenqanaba lomda wepolymerization (LODP ) phakathi kwe-15-375; non-fibrous kodwa ulwelo kakhulu; enganyibilikiyo emanzini, i-acids dilute, izinyibilikisi ze-organic kunye ne-oyile, inyibilikiswe ngokuyinxenye kwaye idumbile kwizisombululo zealkali ezinyibilikayo. Ine-reactivity ephezulu kwinkqubo ye-carboxymethylation, i-acetylation kunye ne-esterification. Iluncedo kakhulu ekuguquleni imichiza kunye nokusetyenziswa.

I-Microcrystalline cellulose ineempawu ezintathu ezisisiseko:

1) Umyinge wesidanga sepolymerization ufikelela kumda wexabiso ledigri yepolymerization

2) Iqondo le-crystallinity liphezulu kuneselulosi ekrwada

I-3 inamandla okufunxa amanzi, kwaye inamandla okwenza iglu emva kokucheba okuqinileyo kwindawo yamanzi

02. Ukusetyenziswa kwe-microcrystalline cellulose ekutyeni

2.1 Gcina uzinzo lwe-emulsification kunye ne-foam

Ukuzinza kwe-emulsion ngowona msebenzi ubalulekileyo we-microcrystalline cellulose. I-Microcrystalline cellulose particles iyahlakazeka kwi-emulsion ukuze ikhulise kwaye ifake i-gel isigaba samanzi kwi-emulsion yamanzi yeoli, ngaloo ndlela ikhusela amaconsi e-oyile ukuba asondelane kwaye adibanise.

Ngokomzekelo, ixabiso eliphantsi le-pH ye-yoghurt ngokulula linokubangela ukuba izinto eziqinileyo ebisi zidibanise, zibangele ukuba i-whey yahlukane nomxube. Ukongeza i-microcrystalline cellulose kwi-yogurt inokuqinisekisa ngokufanelekileyo ukuzinza kweemveliso zobisi. Emva kokongeza i-microcrystalline cellulose stabilizer kwi-ayisikrimu, ukuzinza kwayo kwe-emulsification, ukuzinza kwe-foam kunye nokukwazi ukuthintela i-ice crystal kuphuculwe kakhulu, kwaye xa kuthelekiswa ne-soluble polymer compound stabilizers, i-ice cream ilula kwaye ihlaziya ngakumbi.

2.2 Gcina uzinzo lobushushu obuphezulu

Ngexesha lokulungiswa kokutya kwe-aseptic, kukho zombini ukushisa okuphezulu kunye ne-viscosity ephezulu. Isitashi siya kubola phantsi kweemeko ezinjalo, kwaye ukongeza i-microcrystalline cellulose kukutya kwe-aseptic kunokugcina iimpawu zayo ezintle. Ngokomzekelo, i-emulsion kwiimveliso zenyama ekheniweyo inokugcina umgangatho ofanayo xa ishushu kwi-116 ° C kwiiyure ze-3.

2.3 Ukuphucula ukuzinza kolwelo, kwaye usebenze njenge-arhente yejeli kunye ne-arhente exhomayo.

Xa iziselo ezikhawulezileyo zisasazwa kwakhona emanzini, ukusasazwa okungalinganiyo okanye ukuzinza okuphantsi kuhlala kwenzeka. Ukongeza umlinganiselo othile we-colloidal cellulose unokukhawuleza ukwenza isisombululo esizinzileyo se-colloidal, kwaye i-dispersibility kunye nokuzinza kuphuculwe kakhulu. Ukongeza i-stabilizer ehlanganiswe ne-colloidal microcrystalline cellulose, isitashi kunye ne-maltodextrin kwi-tshokoleta esheshayo okanye i-cocoa iziselo azikwazi nje ukuthintela umgubo weziselo ezikhawulezayo ukuba zibe manzi kunye ne-agglomerated, kodwa zenze iziphuzo ezilungiselelwe ngamanzi zibe nokuzinza okuphezulu kunye nokusabalalisa ngesondo.

2.4 Njengesigcwalisi esingenasondlo kunye ne-thickener, phucula isakhiwo sokutya

Indawo yomgubo efunyenwe ngokuxuba i-microcrystalline cellulose, i-xanthan gum, kunye ne-lecithin isetyenziswa kwimpahla ebhakiweyo. Xa isixa sokutshintsha singadluli kwi-50% yexabiso lokuqala lomgubo osetyenzisiweyo, linokugcina incasa yokuqala kwaye ngokuqhelekileyo ayichatshazelwa lulwimi. Ubungakanani obuninzi beengqungquthela eziculwa ngu-40 μm, ngoko ke, i-80% ye-microcrystalline cellulose particle size iyadingeka ukuba ibe <20 μm.

2.5 Ukongezwa kwizimuncumuncu ezikhenkcezisiweyo ukulawula ukumila kwekristale yomkhenkce

Ngenxa yobukho be-microcrystalline cellulose kwinkqubo yokunyibilika rhoqo, isebenza njengesithintelo somzimba, esinokuthi sithintele iinkozo zekristale ukuba zingadibanisi zibe ziikristale ezinkulu. Ngokomzekelo, nje ukuba i-0.4-0.6% i-cellulose ye-microcrystalline yongezwa kwi-ayisikrimu, yanele ukukhusela i-ice crystal grains ekunyuseni ngexesha lokukhenkcezwa rhoqo kunye nokunyibilika, kunye nokuqinisekisa ukuba ukuthungwa kunye nesakhiwo sayo asitshintshi, kunye ne-microcrystalline. Amasuntswana e-cellulose alungile kakhulu, anokunyusa incasa. Ukongeza i-0.3%, i-0.55%, kunye ne-0.80% ye-cellulose ye-microcrystalline kwi-ayisikrimu elungiswe yi-formula yaseBritani eqhelekileyo, i-viscosity ye-ayisikrimu iphezulu kancinane kunoko ngaphandle kokongeza i-cellulose ye-microcrystalline, kwaye ayinayo impembelelo kubungakanani bokuchithwa, kwaye iyakwazi Ukuphucula ukuthungwa.

2.6 I-Microcrystalline cellulose nayo isetyenziselwa ukunciphisa iikhalori

Ukuba isetyenziselwa ukugqoka isaladi, ukunciphisa iikhalori kunye nokwandisa i-cellulose ukuphucula iimpawu ezidliwayo. Xa usenza ioli yokupheka eyohlukeneyo, ukongeza i-microcrystalline cellulose inokuthintela i-oyile ukuba ihlukane nesosi xa ishushu okanye ibilisiwe.

2.7 Abanye

Ngenxa ye-adsorption ye-microcrystalline cellulose, ukutya okunomxholo ophezulu wamaminerali kunokufumaneka ngokubhengezwa kwee-ion zetsimbi.


Ixesha lokuposa: Feb-23-2023
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