Txhim kho kev siv cov khoom noj: Qhov kub thiab txias, siab siab thiab siab shear quab yuam thaum lub sij hawm puffing txheej txheem nce qib ntawm starch gelatinization, rhuav tshem thiab soften lub cell phab ntsa ntawm cov fiber ntau, thiab tso tawm ib feem nyob ib ncig ntawm thiab ua ke digestible tshuaj, thaum rog nkag los ntawm lub sab hauv ntawm cov khoom mus rau qhov chaw muab cov khoom noj tshwj xeeb tsw thiab txhim kho palatability, yog li ua kom tus nqi noj.
• Txo cov pa phem ib puag ncig: Extruded floating ntses pub muaj kev ruaj ntseg zoo hauv dej, uas tuaj yeem txo qhov kev sib cais thiab nag lossis daus poob ntawm cov khoom noj hauv dej thiab txo cov dej paug.
• Txo qhov tshwm sim ntawm cov kab mob: qhov kub thiab txias, av noo thiab siab siab thaum lub sij hawm puffing txheej txheem tuaj yeem tua cov kab mob phem tshaj plaws, pab tswj cov dej kom zoo thiab txo qhov tsis zoo ntawm ib puag ncig hauv aquaculture, thaum txo qis kev tuag ntawm cov tsiaj hauv dej.
• Ua kom muaj kev loj hlob ceev: Kev siv cov khoom sib xyaw extruded tuaj yeem txo cov coefficient pub thiab txo tus nqi ntawm cov khoom seem thiab cov khoom tso tawm mus rau hauv lub cev dej, ua rau nws muaj peev xwm ua rau kom muaj kev loj hlob ntau.
• Nthuav lub sij hawm cia khoom noj: Extrusion thiab puffing processing txhim khu kev ruaj ntseg ntawm raw cov ntaub ntawv los ntawm kev txo cov kab mob thiab oxidation.
• Ua kom palatability thiab digestibility: Cov khoom noj nthuav dav dhau los ua cov qauv xoob thiab tsis zoo. Qhov kev hloov pauv no muab thaj chaw sib cuag loj dua rau cov enzymes, uas yog qhov tsim nyog rau kev sib cuag ntawm cov hmoov txhuv nplej siab, peptide chains thiab digestive enzymes, thiab yog qhov zoo rau kev zom zaub mov. absorption, yog li txhim kho lub digestibility ntawm pub.
• Txhim kho fiber ntau solubility: Extrusion thiab puffing tuaj yeem txo cov ntsiab lus fiber ntau hauv kev pub noj thiab txhim kho kev siv khoom noj.
Disadvantages ntawm extruder granulation:
• Kev puas tsuaj ntawm cov vitamins: Kev sib txhuam ntawm qhov siab, qhov kub thiab txias, noo noo nyob rau hauv ib puag ncig thiab pub tuaj yeem ua rau poob ntawm cov vitamins hauv cov zaub mov, tshwj xeeb tshaj yog cov vitamin A, vitamin D thiab folic acid.
• Inhibition ntawm enzyme npaj: kub siab thaum lub sij hawm puffing txheej txheem yuav maj mam thiab tag nrho cov kev ua ntawm enzyme npaj.
• Ua kom puas cov amino acids thiab cov proteins: Nyob rau hauv qhov kub thiab txias, puffing yuav ua rau Maillard cov tshuaj tiv thaiv ntawm qee qhov txo cov suab thaj hauv cov khoom nyoos thiab cov amino acids dawb, txo kev siv qee cov proteins.
• Cov nqi tsim khoom ntau dua: Cov txheej txheem pub zaub mov yog qhov nyuaj dua li txheej txheem pub pellet dav dav. Cov txheej txheem nthuav dav cov cuab yeej yog kim, muaj kev siv hluav taws xob siab, thiab muaj cov zis qis, ua rau cov nqi siab.
Qhov zoo ntawm granulating tshuab:
• Kev ua tau zoo ntau lawm: Lub granulator tuaj yeem hloov cov ntaub ntawv raw mus rau hauv cov khoom granular ntawm cov duab uas yuav tsum tau ua, txhim kho kev tsim khoom.
• Uniform particle loj: Thaum lub sij hawm granulation txheej txheem, cov khoom raug shear quab yuam thiab extrusion quab yuam, ua rau particle loj faib ntawm cov khoom tiav lawm uniform.
• Kev ua haujlwm yooj yim: Lub granulator muaj cov qauv yooj yim, yooj yim rau kev khiav lag luam, thiab yooj yim los tswj thiab kho.
• Kev siv dav dav: Lub granulator tuaj yeem siv rau granulating ntau yam ntaub ntawv, suav nrog cov tshuaj granular, tshuaj raw khoom, zaub mov, thiab lwm yam.
Disadvantages ntawm granulator granulation:
• Kev puas tsuaj ntawm cov vitamins thiab enzyme npaj: kub thiab siab thaum lub sij hawm granulation yuav rhuav tshem cov kev ua ntawm cov vitamins thiab enzyme npaj.
• Kev puas tsuaj rau cov amino acids thiab cov proteins: Nyob rau hauv qhov kub thiab txias, granulation yuav ua rau Maillard cov tshuaj tiv thaiv ntawm qee qhov txo cov suab thaj hauv cov khoom nyoos thiab cov amino acids dawb, txo kev siv qee cov proteins.
• Cov khoom siv granulated yog qhuav thiab ntub dej: qhov sib tov ceev thiab sib tov lub sij hawm ntawm lub granulator los yog lub shearing ceev thiab shearing lub sij hawm ntawm shearing yog tsawg dhau los disperse tus binder los yog wetting agent sai thiab sib npaug. Yuav muaj kev sib tov tsis sib xws thiab granulation ntawm cov ntaub ntawv.
• Particles tsim agglomerates thiab agglomerate: Tus nqi ntawm cov binder ntxiv los yog tus neeg sawv cev ntub dej yog siab dhau thiab tus nqi ntxiv yog ceev. Nws raug pom zoo kom txo qis tus nqi ntawm cov binder lossis tus neeg sawv cev ntub dej kom tsim nyog thiab tswj tus nqi ntxiv.
Hauv cov ntsiab lus, extruder granulation thiab granulator granulation txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab kev xaiv yuav tsum tau txiav txim siab raws li cov kev xav tau tshwj xeeb thiab cov xwm txheej.