Kev Tshawb Fawb Txog Kev Tsim Khoom Gelatin Los Ntawm Txoj Kev Alkaline

Gelatin yog ib qho colloid siv dav hauv cov khoom noj, tshuaj, tshuaj pleev ib ce, thiab lwm yam lag luam. Muaj ntau txoj kev tsim khoom, ntawm cov uas txoj kev alkaline feem ntau siv. Hauv qab no yog cov lus qhia ntxaws ntxaws ntawm cov txheej txheem alkaline:
Ⅰ. Kev Npaj Khoom Siv Raw

Ua ntej, cov khoom siv raw nplua nuj nyob rau hauv collagen, xws li cov tawv tsiaj lossis pob txha, tau npaj tseg. Cov ntaub ntawv no tsim lub hauv paus ntawmgelatin kev tsim khoom, thiab lawv qhov zoo cuam tshuam ncaj qha rau cov khoom kawg. Yog li ntawd, cov ntaub ntawv raw yuav tsum yogtshiab thiab tsis muaj kuab paugthaum lub sijhawm xaiv.

II. Kev Kho Mob Alkaline

Tom ntej no, cov khoom siv raw yuav raug kho nrog alkaline. Lub hom phiaj yog:

1. Tshem tawm cov khoom uas tsis yog collagen (piv txwv li, cov rog, cov khoom tsis huv).
2. Ib feem hydrolyze collagen kom txhim kho solubility.

Cov Kev Tswj Xyuas Tseem Ceeb:

• Kev Ntsuas AlkaliFeem ntau yog 2–5% sodium hydroxide (NaOH) los yog 1–3% calcium hydroxide (Ca(OH)₂) kua.
• KubKhaws cia rau ntawm 15-25 ° C kom tsis txhob muaj hydrolysis ntau dhau.
• Lub Sijhawm: 12–48 teev (txawv ntawm cov khoom siv raw thiab tuab).
  
  

  III. Kev lim dej
  Tom qab kho alkaline, cov khoom sib tov raug lim kom tshem tawm cov khoom tsis huv. Cov txheej txheem feem ntau suav nrog:

  • Kev Siv Mesh ZooSiv 80–100 mesh screens los cais cov khoom loj.
  • Kev siv lub tshuab centrifugeRau cov khoom tsis huv me me, centrifugation ntawm 3000–5000 rpm yog xaiv tau.

  Lub hom phiaj yog kom tau txais ib qhokua ntshiab, tsis muaj kuab paug.
  Ⅳ. Kev Ntsuas

  Cov kua uas tau lim lawm raug ua kom sib zog kom nce ntxiv gelatin qhov concentration (feem ntau ntawm 5–10% txog 20–30%). Qhov no feem ntau ua tiav los ntawmcua sov ua kom sovnyob rau hauv cov xwm txheej tswj hwm:

  • KubKub: 60–70 ° C kom tiv thaiv collagen denaturation.
  • Kev ntxhov siab: Txuas ntxiv do kom tsis txhob kub dhau thiab kub hnyiab.
    
    Ⅴ. Kev ziab
    

    Thaum kawg, cov kua gelatin uas muaj concentrated raug ziab kom tsim tau cov khoom kawg. Cov txheej txheem ziab feem ntau suav nrog:

    1. Tshuaj tsuag kom qhuavKev ua kom cov tshuaj atomizing ua cov tee dej thiab ziab nrog cua kub (120–140 ° C) kom ua hmoov.
    2. Kev Siv Lub Tshuab Nqus Tsev Qhuav: Ziab ntawm 40–50 ° C hauv lub tshuab nqus tsev kom khaws cov khoom ua haujlwm ntawm gelatin.

    Txawm yog siv txoj kev twg los xij, yuav tsum tswj hwm qhov kub thiab lub sijhawm kom zoo thiab ruaj khov ntawm cov khoom.