COV CIM THOV NTAWM GELATIN HAUV KHOM QAB ZIB MOS
Gelatin yog cov gel tseem ceeb siv los ua cov khoom qab zib gummy elastic vim nws muab cov khoom qab zib mos mos muaj cov qauv elastic heev. Hauv cov txheej txheem ntawm kev tsim cov khoom qab zib mos mos, thaum cov kua gelatin txias rau 22-25 ℃, cov gelatin dhau los ua khoom khov. Raws li nws cov yam ntxwv, cov kua gelatin raug sib xyaw rau hauv cov kua qab zib thiab nchuav rau hauv pwm thaum nws kub. Tom qab txias, ib qho duab ntawm gelatin jelly tuaj yeem tsim.
Qhov tshwj xeeb ntawm kev siv gelatin yog qhov rov ua dua thaum tshav kub. Cov khoom uas muaj gelatin nyob rau hauv lub xeev kua thaum cua sov, thiab hloov mus rau hauv lub xeev khov tom qab txias. Vim tias qhov kev hloov pauv sai no tuaj yeem rov ua dua ntau zaus, cov yam ntxwv tseem ceeb ntawm cov khoom tsis hloov pauv kiag li. Yog li ntawd, qhov zoo ntawm gelatin siv rau cov khoom qab zib jelly yog tias kev kho cov kua yooj yim heev. Txhua yam khoom gelled los ntawm cov pwm hmoov nrog txhua qhov tsos tsis zoo tuaj yeem ua kom sov thiab rov yaj rau 60 ℃ -80 ℃ ua ntej rov ua dua yam tsis cuam tshuam rau nws qhov zoo.
Cov khoom noj khoom haus gelatin iIb qho protein ntuj nrog cov carboxyl thiab amino pawg dissociable ntawm cov saw molecular. Yog li ntawd, yog tias txoj kev kho mob txawv, tus lej ntawm cov carboxyl thiab amino pawg ntawm cov saw molecular yuav hloov pauv, uas txiav txim siab qib ntawm isoelectric point ntawm gelatin. Thaum tus nqi pH ntawm cov khoom qab zib jelly nyob ze rau isoelectric point ntawm gelatin, cov nqi zoo thiab tsis zoo dissociated ntawm cov saw molecular gelatin yog sib npaug, thiab cov protein ua tsis ruaj khov thiab gelatinous. Yog li ntawd, nws raug pom zoo kom xaiv isoelectric point ntawm gelatin deb ntawm tus nqi pH ntawm cov khoom, vim tias tus nqi pH ntawm cov khoom qab zib gelatin jelly feem ntau yog ntawm 3.0-3.6, thaum isoelectric point ntawm acid kua nplaum feem ntau siab dua, ntawm 7.0-9.5, yog li acid kua nplaum yog qhov tsim nyog tshaj plaws.
Tam sim no, Gelken muab cov gelatin noj tau uas tsim nyog rau kev tsim cov khoom qab zib mos. Lub zog jelly yog 180-250 paj. Lub zog jelly siab dua, qhov zoo dua qhov tawv thiab elasticity ntawm cov khoom muab. Viscosity raug xaiv ntawm 1.8-4.0Mpa.s raws li lub zog jelly.
Lub sijhawm tshaj tawm: Lub Ob Hlis-24-2022
