Soy protein isolate (SPI) yog cov khoom muaj ntau yam thiab ua haujlwm tau zoo uas tau txais kev nyiam nyob hauv kev lag luam khoom noj vim nws cov txiaj ntsig thiab kev siv ntau heev. Muab tau los ntawm qhov kub thiab txias defatted soybean pluas noj, soy protein cais tawm cov txheej txheem ntawm kev rho tawm thiab kev sib cais kom tshem tawm cov khoom tsis muaj protein ntau, uas ua rau muaj cov ntsiab lus protein ntau dua 90%. Qhov no ua rau nws muaj txiaj ntsig zoo ntawm cov protein zoo, qis hauv cov roj cholesterol thiab tsis muaj rog, ua rau nws muaj kev noj qab haus huv rau cov neeg siv khoom. Nrog nws lub peev xwm los pab hauv kev poob phaus, txo cov ntshav lipids, txo cov pob txha poob, thiab tiv thaiv kab mob plawv thiab paj hlwb, soy protein cais tau dhau los ua cov khoom muaj txiaj ntsig hauv ntau yam khoom noj.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm soy protein cais tawm yog nws cov haujlwm ua haujlwm hauv cov ntawv thov zaub mov. Nws muaj ntau yam kev ua haujlwm, suav nrog gelling, hydration, emulsifying, roj absorbing, solubility, foaming, o, kev sib koom, thiab clumping. Cov khoom no ua rau nws muaj ntau yam khoom xyaw uas tuaj yeem siv rau hauv ntau yam khoom noj khoom haus thoob plaws kev lag luam sib txawv. Los ntawm cov khoom noj nqaij mus rau cov khoom lag luam hmoov, cov khoom siv dej, thiab cov khoom noj tsis noj nqaij, soy protein cais tawm muaj ntau cov txiaj ntsig zoo, ua rau nws yog ib qho tseem ceeb hauv kev tsim ntawm ntau yam khoom noj.
Muaj ntau txoj hauv kev los siv soy protein cais tawm, xws li:
(1) Qhuav ntxiv: Ntxiv cov kua protein cais tawm rau cov khoom xyaw hauv daim ntawv qhuav hmoov thiab sib tov. Tus nqi ntxiv yog kwv yees li 2% -6%;
(2) Ntxiv rau hauv daim ntawv ntawm hydrated colloid: Sib tov kua protein cais nrog ib qho kev faib ua feem ntawm cov dej los tsim cov slurry thiab ces ntxiv. Feem ntau, 10% -30% ntawm cov colloid ntxiv rau cov khoom;
(3) Ntxiv rau hauv daim ntawv ntawm cov protein ntau: Sib tov kua protein cais nrog dej thiab ntxiv glutamine transaminase kom hla cov protein kom tsim cov nqaij protein. Yog tias tsim nyog, kev hloov xim tuaj yeem ua tau, thiab tom qab ntawd nws yog tsim los ntawm cov nqaij grinder. Protein hais, feem ntau ntxiv nyob rau hauv ib tug npaum li ntawm 5% -15%;
(4) Ntxiv nyob rau hauv daim ntawv ntawm ib tug emulsion: sib tov soy protein cais nrog dej thiab roj (tsiaj roj los yog zaub roj) thiab chop. Qhov sib tov sib xyaw yog kho kom haum raws li qhov xav tau sib txawv, cov protein: dej: roj = 1: 5: 1-2 / 1: 4: 1-2 / 1: 6: 1-2, thiab lwm yam, thiab qhov sib ntxiv sib ntxiv yog txog 10% -30%;
(5) Ntxiv rau hauv daim ntawv ntawm kev txhaj tshuaj: sib tov soy protein cais nrog dej, seasoning, marinade, thiab lwm yam, thiab tom qab ntawd txhaj rau hauv cov nqaij nrog lub tshuab txhaj tshuaj los ua lub luag haujlwm hauv dej tuav thiab kev sib tw. Feem ntau, cov protein ntxiv rau kev txhaj tshuaj yog li 3% -5%.
Hauv kev xaus, soy protein cais tawm muaj ntau yam kev ua haujlwm thiab kev siv hauv kev lag luam khoom noj. Nws cov ntsiab lus muaj protein ntau, ua ke nrog nws cov khoom ua haujlwm, ua rau nws muaj txiaj ntsig zoo rau cov khw muag khoom noj nrhiav kom txhim kho cov khoom noj khoom haus thiab cov yam ntxwv ntawm lawv cov khoom. Txawm hais tias nws yog kev txhim kho kev ntxhib los mos, txhim kho cov dej noo, lossis muab cov khoom noj muaj txiaj ntsig zoo, soy protein cais tawm tseem ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom noj khoom haus tshiab thiab muaj txiaj ntsig zoo. Raws li cov neeg siv khoom xav tau kev noj qab haus huv thiab kev noj qab haus huv cov kev xaiv tau nce ntxiv, cov kua protein cais tawm tau npaj los ua cov khoom tseem ceeb hauv kev tsim cov khoom noj muaj ntau yam.
Post lub sij hawm: Aug-09-2024