Cov Khoom Siv Dav Dav
Carrageenan feem ntau yog hmoov dawb mus rau daj-xim av, tsis muaj ntxhiab thiab tsis qab, thiab qee yam khoom muaj qhov saj me ntsis ntawm seaweed. Cov gel uas tsim los ntawm carrageenan yog thermoreversible, uas yog, nws yaj mus rau hauv cov kua tom qab cua sov, thiab tsim cov gel dua thaum cov kua txias.
Cov Khoom Siv Lub Cev thiab Tshuaj
Carrageenan tsis muaj tshuaj lom thiab muaj cov yam ntxwv ntawm kev coagulation, solubility, stability, viscosity thiab reactivity. Yog li ntawd, nws tuaj yeem siv ua coagulant, thickener, emulsifier, suspending agent, adhesive, molding agent thiab stabilizer hauv kev tsim khoom noj khoom haus.
Daim ntawv thov hauv kev lag luam zaub mov
Carrageenan tau siv los ua cov khoom noj khoom haus ntuj tau ntau xyoo. Nws yog cov fiber nroj tsuag tsis muaj teeb meem uas tuaj yeem pab zom zaub mov thiab muaj ntau yam kev siv. Kev tsim khoom lag luam ntawm carrageenan hauv cov teb chaws txawv teb chaws pib xyoo 1920, thiab Tuam Tshoj pib tsim cov carrageenan lag luam xyoo 1985, uas 80% yog siv rau hauv cov khoom noj lossis cov lag luam ntsig txog zaub mov.
Carrageenan muaj peev xwm ua tau cov gels ib nrab khov. Nws yog ib qho coagulant zoo heev rau kev ua cov txiv hmab txiv ntoo jelly. Nws khov ntawm chav sov. Cov gel uas tsim yog ib nrab khov, pob tshab heev, thiab tsis yooj yim rau collapse. Nws kuj tseem siv tau los ntxiv cov as-ham los ua hmoov jelly. Thaum noj, nws yooj yim heev rau yaj nws hauv dej. Nws kuj tseem siv tau ua coagulant rau mis nyuj pudding thiab txiv hmab txiv ntoo pudding. Nws muaj cov yam ntxwv ntawm kev tso dej tsawg, cov qauv zoo, viscosity tsawg, thiab kev hloov pauv cua sov zoo. Thaum ua cov taum pauv nrog yokan, carrageenan tuaj yeem ntxiv ua coagulant. Cov txiv hmab txiv ntoo hauv qab ua los ntawm carrageenan ua coagulant yooj yim heev rau noj thiab nqa. Nws muaj txiv hmab txiv ntoo thiab muaj cov khoom noj khoom haus zoo dua li cov txiv hmab txiv ntoo jelly ib txwm. Carrageenan kuj tseem siv tau ua coagulant rau cov nqaij hauv qab, thiab kuj tseem siv tau ua stabilizer, suspending agent, forming agent, clarifier, thickener, adhesive, thiab lwm yam.
Thaum ua cov khoom qab zib txiv hmab txiv ntoo pob tshab, yog tias carrageenan siv ua cov tshuaj coagulant, cov khoom qab zib mos mos muaj pob tshab siab, txias thiab tsis lo rau cov hniav. Ntxiv carrageenan rau cov khoom qab zib tawv dav dav tuaj yeem ua rau cov khoom zoo nkauj thiab du, thiab ua rau muaj kev ruaj khov.
Cov kev cia siab rau daim ntawv thov
Carrageenan, ib yam khoom ntuj tsim, muaj cov khoom zoo heev xws li muaj zog reactivity, muaj peev xwm tsim cov gels thiab cov kua viscosity siab, thiab ruaj khov siab. Ntawm txhua cov polymers uas yaj hauv dej, nws yog qhov tshwj xeeb hauv nws cov reactivity nrog cov protein. Kev ywj pheej zoo, pob tshab thiab solubility tuaj yeem nthuav nws cov ntawv thov. Nws cov khoom muaj kev nyab xeeb thiab tsis muaj tshuaj lom tau lees paub los ntawm Pawg Neeg Saib Xyuas Kev Ntxiv Khoom Noj Khoom Haus (JECFA) ntawm Lub Koom Haum Khoom Noj thiab Kev Ua Liaj Ua Teb ntawm United Nations thiab Lub Koom Haum Kev Noj Qab Haus Huv Ntiaj Teb, uas ntseeg tias carrageenan yuav tsum tau siv dav hauv kev lag luam khoom noj khoom haus, kev lag luam tshuaj lom neeg, biochemistry, kev tshawb fawb kho mob thiab lwm yam teb. Yog li ntawd, nyob rau xyoo tas los no, carrageenan tau tsim kho sai sai hauv tsev thiab txawv teb chaws, thiab qhov kev thov tau nce ntxiv heev. Nws txoj haujlwm tshwj xeeb tsis tuaj yeem hloov los ntawm lwm cov resins, uas tau ua rau kev lag luam carrageenan loj hlob sai. Tam sim no txhua xyoo tag nrho cov zis ntawm carrageenan hauv ntiaj teb tau dhau qhov tso zis ntawm agar.
Carrageenan thawj zaug siv dav hauv Tebchaws Europe thiab Tebchaws Meskas, thiab kev tsim khoom thoob ntiaj teb ntawm carrageenan yog qib thib ob ntawm cov pos hniav uas tau rho tawm los ntawm seaweed. Nyob rau xyoo tas los no, kuv lub tebchaws tau suav nrog carrageenan hauv daim ntawv teev cov khoom noj khoom haus ntxiv. Carrageenan kuj tau suav nrog hauv cov lus qhia txog kev noj zaub mov ntawm Lub Koom Haum Khoom Noj thiab Kev Ua Liaj Ua Teb ntawm United Nations thiab Lub Koom Haum Kev Noj Qab Haus Huv Ntiaj Teb. Hauv ntej, carrageenan ua tau raws li cov qauv khoom noj khoom haus Suav thiab txawv teb chaws thiab muaj kev cia siab dav dav.
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Lub sijhawm tshaj tawm: Kaum Ib Hlis-09-2024