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I-Xanthan gum Isithombe Esifakiwe
  • I-Xanthan gum
  • I-Xanthan gum
  • I-Xanthan gum

I-Xanthan gum

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MF: C8H14Cl2N2O2
MW: 241.11496
I-CAS: 11138-66-2

I-1.I-Xanthan gum iwumsebenzi we-polysaccharide enesisindo samangqamuzana aphezulu enziwe i-polymerized kusukela kuyunithi efanayo noshukela wama-molecular 5 njengeyunithi.Iyunithi ngayinye inama-molecule amabili eglucose, ama-molecule amabili e-mannose kanye ne-molecule eyodwa ye-glucuronic acid.Iketango layo eliyinhloko lakhiwe yi-β-Glucose ixhunywe yi-1,4-glycosidic bond.Ukwakheka kwama-molecule ama-2 eglucose kuyafana neselulosi.Kunama-molecule ama-2 e-mannose kanye ne-molecule engu-1 ye-glucuronic acid ku-C3 yeglucose ukuze kwakheke iketango elisemaceleni.Kunamaqembu aseceleni e-pyruvic acid ne-carboxylic acid ochungechungeni oluseceleni.Ngenxa yokuthi uchungechunge lwawo oluseceleni luqukethe amaqembu ane-acidic, luveza ama-polyanion esisombululo esinamanzi, enza uhlaka lwe-xanthan gum olunezinhlangothi ezintathu: iketango elisemaceleni elinama-anions livunguza iketango eliyinhloko ukuze lenze isakhiwo se-helical, futhi ama-molecule akha i-double stranded. i-helix ngamabhondi e-hydrogen, kuyilapho ukwakheka kwe-helical okunemicu ephindwe kabili kugcinwa ngamabhondi angenamandla aqinile, akha “i-super bonded ribbon helical polymer” evamile.Ukusebenza kwayo okuyingqayizivele kuhlobene ne-pyruvic acid equkethe.Ngokuvamile, okuqukethwe kwe-pyruvic acid ku-xanthan gum kungasetshenziswa ukukala ukusebenza kwayo.

I-2.Izakhiwo ezijwayelekile ze-rheological, i-viscosity ephezulu ekugxilweni okuphansi, ukumelana nokushisa, ukumelana ne-asidi, ukumelana ne-alkali, ukumelana ne-enzymatic hydrolysis, ukuhambisana, ukunyibilika, ukuhlakazeka, ukugcinwa kwamanzi.

3.I-solubility encibilikayo emanzini, engancibiliki ku-ethanol (ot-42).Thatha u-300ml wamanzi wokuhlola ukwakheka kwejeli, uyibeke kubhekha engu-400ml, uyishise kusengaphambili ibe ngu-80 ℃, bese wengeza u-1.5g wesampula kanye no-1.5g we-carrageenan eyimpuphu ngaphansi kokunyakaziswa kwemishini okukhulu.Gcoba kuze kube yilapho isixazululo senziwe, bese uqhubeka uvuselela i-3chemicalbook0min.Ngesikhathi sokuxuba, izinga lokushisa lamanzi akufanele libe ngaphansi kuka-60 ℃, yeka ukuhlanganisa, futhi uphole ekamelweni lokushisa ngaphezu kuka-2H.Lapho izinga lokushisa lingaphansi kuka-40 ℃, kufanele kwakhiwe irabha eqinile efana nejeli, kodwa ijeli enjalo ngeke yakheke uma kusetshenziswa isampula kuphela esikhundleni sesixazululo sokulawula esingu-1% esilungiswe ngendlela efanayo ne-carrageenan.

Isicelo

1. Embonini kawoyela, isixazululo se-0.5% xanthan glue singagcina i-viscosity yoketshezi lokumba olusekelwe emanzini futhi lulawule izakhiwo zalo ze-rheological, ukuze i-viscosity ye-high-speed bit ejikelezayo ibe yincane kakhulu, esindisa kakhulu ukusetshenziswa kwamandla. .Kodwa-ke, igcina i-viscosity ephezulu engxenyeni yokumba emile ngokuqhathaniswa, edlala indima ekuvimbeleni ukubhidlika kodonga lomthombo kanye nokwenza lula ukusika kwetshe eliphuma emthonjeni.

2. Embonini yokudla, kungcono kunezithasiselo zokudla ezikhona njenge-gelatin, i-CMC, i-seaweed gum ne-pectin.Ukwengeza u-0.2% - 1% kujusi yesithelo kwenza ijusi yesithelo ibe nokunamathela okuhle, ukunambitheka okuhle, nokulawula ukungena nokugeleza;Njengesengezo sesinkwa, i-chemicalbook ingenza isinkwa sizinze, sibushelelezi, songe isikhathi futhi sinciphise izindleko;Ukusebenzisa u-0.25% ekugxilweni kwesinkwa, ukugcwaliswa kokudla kanye ne-icing kungandisa ukunambitheka nokunambitheka, kubushelelezi inhlangano yemikhiqizo, kunwebe impilo yeshalofu, futhi kuthuthukise ukuzinza kwemikhiqizo ekushiseni nasekuqandeni;Emikhiqizweni yobisi, ukwengeza u-0.1% - 0.25% ku-ayisikhilimu kungadlala indima enhle kakhulu yokuzinzisa;Inganikeza ukulawulwa okuhle kwe-viscosity ekudleni okusemathinini, futhi ingashintsha ingxenye yesitashi.Ingxenye eyodwa ye-xanthan gum ingangena esikhundleni sezingxenye ezi-3 ~ 5 zesitashi.Ngesikhathi esifanayo, i-xanthan gum nayo isetshenziswe kabanzi kumaswidi, ama-condiments, ukudla okufriziwe nokudla okuwuketshezi.

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