Cov txiaj ntsig ntawm Tsiaj Khoom Noj Khoom Noj Los Ntawm Extrusion Technology

Kev ua cov khoom noj tsiaj feem ntau yog hais txog cov txheej txheem ntawm kev tsim ntau yam khoom siv raw lossis ib qho khoom siv raw los ntawm ntau txoj kev thiab txoj hauv kev, txhawm rau txhim kho cov khoom noj tsiaj zoo tshaj plaws, palatability thiab digestion thiab absorption, thiaj li ua kom cov khoom noj muaj txiaj ntsig zoo tshaj plaws thiab siv tus nqi. Kev ua ntau yam ntawm cov khoom noj tsiaj yog dav heev, suav nrog cov khoom noj khoom haus tsiaj, khoom noj txom ncauj, cov hniav ntxuav hniav, tus neeg saib xyuas khoom noj khoom haus, khoom noj khoom haus hmoov, zaub mov qhuav, zaub mov ntub, khoom noj ib nrab qhuav, cov kaus poom, thiab lwm yam. , cov ntaub ntawv sib txawv yog ua tiav hauv cov ntawv sib txawv thiab qib. Kev ua cov zaub mov puffed yog muab faib ua peb pawg: txoj kev siv lub cev, txoj kev tshuaj thiab microbiological txoj kev; Cov txheej txheem tshuaj muaj xws li starch denaturation, protein degradation, thiab lwm yam; Microbiological txoj cai hais txog fermentation ntawm tej yam raw khoom.
Extrusion yog ib hom kev ua zaub mov. Nws yog muab cov zaub mov tiav rau hauv lub thawv airtight, thiab mam li nco dheev decompress tom qab cua sov thiab pressurizing. Cov dej hauv cov zaub mov yuav vaporize thiab nthuav dav, ua rau ntau qhov me me hauv cov zaub mov ua nkig thiab ua zaub mov puffed. Lub hauv paus ntsiab lus yog ua kom cov khoom siv raw nthuav dav los ntawm kev decompression tam sim ntawd hauv qab cua sov thiab siab. Raws li ib yam tshiab ntawm cov khoom noj khoom haus technology, puffing technology pib nyob rau hauv 1910, thiab nws daim ntawv thov nyob rau hauv cov khoom noj tsiaj nyob rau hauv lub tebchaws United States nyob rau hauv 1950s. Tebchaws Asmeskas thawj zaug pib siv lub hauv paus ntsiab lus extrusion los tsim cov khoom noj tsiaj, uas yog, siv cov ntsia hlau thiab lub tes tsho hauv lub tshuab nqus tsev rau extrude cov khoom siv raw kom nws sov thiab siab, thiab extruding qhov kub thiab siab siab cov zaub mov tawm ntawm lub pwm qhov, realizing ceev ntim expansion vim sudden decompression.
Qhov zoo ntawm cov txheej txheem extrusion raug:
1. Txhim kho lub palatability ntawm cov khoom noj tsiaj.
2. Hloov lossis txhim kho cov khoom noj muaj txiaj ntsig ntawm cov khoom noj tsiaj.
3. Txhim kho kev zom zaub mov thiab kev nqus ntawm cov khoom noj tsiaj.
4. Hloov cov ntsiab lus ntawm cov khoom noj khoom haus sib txawv ntawm cov khoom noj tsiaj, xws li txo cov dej noo los txhim kho lub txee lub neej ntawm cov zaub mov, uas yog qhov tsim nyog rau kev khaws cia.
5. Hloov cov duab thiab cov qauv ntawm cov khoom noj tsiaj kom yooj yim rau cov tsiaj noj.
6. Hloov lub peev xwm ntawm cov khoom noj, extrude thiab granulate, thiab nias kom muaj peev xwm ceev ntawm cov khoom noj.
7. Tua txhua yam pwm, salmonella thiab lwm yam khoom tsis zoo, thiab txhim kho kev nyab xeeb thiab kev nyiam huv ntawm cov zaub mov tsiaj.
Muaj ob hom ntsia hlau extrusion: ib qho yog qhuav extrusion, lwm yam yog ntub extrusion.
Thaum lub sijhawm tsim khoom thiab ua tiav ntawm kev nthuav dav qhuav, nws tsis tas yuav ntxiv dej rau cov khoom siv raw. Cov ntaub ntawv raw tsis raug kev kho mob ua ntej ua ntej nkag mus rau hauv qhov chaw nthuav dav. Lub tshav kub generated thaum lub sij hawm expansion txheej txheem yog tag nrho generated los ntawm raw cov ntaub ntawv los ntawm cov ntsia hlau, shear phaj thiab expansion kab noj hniav nyob rau hauv qhov kev txiav txim ntawm txhua yam extrusion.
Qhov sib txawv ntawm kev nthuav dav ntub dej thiab kev nthuav dav qhuav yog tias cov khoom siv raw tau hloov kho ua ntej ua ntej nkag mus rau qhov nthuav dav, thiab qhov kub thiab txias tau nce los ntawm chav lossis dej kom ua ntej ripen. Lub npe hu ua cua txias yog hais txog cua sov thiab ntub dej ntawm cov khoom noj tsiaj nyoos los ntawm chav, kom cov hmoov txhuv nplej siab hauv cov khoom siv raw tuaj yeem ua ntej gelatinized, protein denatured, thiab cov khoom siv raw tuaj yeem muag, uas yog qhov zoo rau kev txhim kho cov nyhuv. ntawm kev nthuav dav thiab granulation ntawm cov khoom noj tsiaj thiab txhim kho kev nthuav dav zoo.
Raws li cov qauv ntsia hlau ntawm cov khoom siv nthuav dav, nws tuaj yeem muab faib ua ib leeg-ntsia hlau extrusion thiab ntxaib-ntsia hlau extrusion.
Cov txheej txheem ib leeg-ntsia hlau extrusion yog qhov yooj yim thiab muaj ntau yam kev siv. Nws tuaj yeem siv rau cov khoom lag luam uas muaj cov dej noo thiab cov ntsiab lus roj ntau dua 17 feem pua, thiab cov hmoov txhuv nplej siab gelatinization tuaj yeem ncav cuag ntau dua 90 feem pua.
Piv nrog rau ib leeg-ntsia hlau extrusion txoj kev, ntxaib-ntsia hlau extrusion txoj kev muaj cov cuab yeej siv thiab cov qauv, tab sis nws muaj ntau yam zoo xws li kev nthuav dav ruaj khov, cov khoom lag luam siab, kev ua haujlwm siab, thiab cov khoom tsis muaj menyuam tom qab nthuav dav.
Hauv kev siv tshuab ua khoom noj tsiaj, tshuab extrusion tau siv dav hauv xyoo tas los no. Tshwj xeeb tshaj yog txij li xyoo 1980s, nws tau tsim sai heev hauv cov khoom noj khoom haus qhuav, cov khoom noj ib nrab qhuav thiab cov khoom noj txom ncauj tsiaj. Lub tshuab extrusion tau zoo heev txhim kho lub palatability, khoom noj khoom haus, kev zom zaub mov thiab kev nqus, kev noj qab haus huv thiab kev nyab xeeb, kev thauj mus los, kev cia thiab lwm yam ntawm cov khoom noj tsiaj, thiab muaj qhov tseem ceeb zoo.