Kusanthula Njira Yopangira Gelatin Pogwiritsa Ntchito Njira ya Alkaline

Gelatin ndi colloid yomwe imagwiritsidwa ntchito kwambiri m'mafakitale azakudya, mankhwala, zodzoladzola, ndi mafakitale ena. Pali njira zosiyanasiyana zopangira, zomwe njira ya alkaline imagwiritsidwa ntchito kwambiri. Pansipa pali kufotokoza mwatsatanetsatane kwa njira ya alkaline:
Ⅰ. Kukonzekera kwa Zinthu Zopangira

Choyamba, zipangizo zopangira zinthu zambiri kolajeni, monga zikopa za nyama kapena mafupa, zimakonzedwa. Zipangizo zimenezi zimapanga maziko agelatin kupanga, ndipo ubwino wawo umakhudza mwachindunji chinthu chomaliza. Chifukwa chake, zipangizo ziyenera kusinthidwawatsopano komanso wopanda kuipitsidwapanthawi yosankha.

II. Chithandizo cha Alkaline

Kenako, zinthu zopangira zimakonzedwa ndi alkaline. Zolinga zake ndi izi:

1. Chotsani zinthu zomwe sizili ndi kolajeni (monga mafuta, zonyansa).
2. Thirani kolajeni pang'ono kuti muwonjezere kusungunuka.

Zowongolera Makiyi:

• Kuchuluka kwa Alkali: Kawirikawiri 2–5% sodium hydroxide (NaOH) kapena 1–3% calcium hydroxide (Ca(OH)₂) yankho.
• Kutentha: Kusungidwa pa 15–25°C kuti tipewe hydrolysis yambiri.
• Kutalika: Maola 12–48 (amasiyana malinga ndi mtundu wa zinthu zopangira ndi makulidwe ake).
  
  

  Ⅲ. Kusefa
  Pambuyo pokonza ndi alkaline, chisakanizocho chimasefedwa kuti chichotse zinyalala zolimba. Njira zodziwika bwino ndi izi:

  • Kupukuta Maukonde AbwinoKugwiritsa ntchito ma screen a maukonde 80–100 kulekanitsa tinthu tating'onoting'ono tating'onoting'ono.
  • Kutsegula kwa centrifugation: Pazinthu zodetsedwa bwino, kusuntha kwa centrifugation pa 3000–5000 rpm ndi kosankha.

  Cholinga chake ndi kupezamadzi oyera, opanda zodetsa.
  Ⅳ. Kuganizira kwambiri

  Madzi osefedwa amathiridwa kuti awonjezere gelatin kuchuluka kwa shuga m'magazi (nthawi zambiri kuyambira 5–10% mpaka 20–30%). Izi zimachitika kudzera mukutentha kwa mpweyapansi pa mikhalidwe yolamulidwa:

  • Kutentha: 60–70°C kuti collagen isasinthe.
  • Kukwiya: Kusakaniza mosalekeza kuti mupewe kutentha kwambiri komanso kutentha kwambiri.
    
    Ⅴ. Kuuma
    

    Pomaliza, madzi oundana a gelatin amaumitsidwa kuti apange chinthu chomaliza. Njira zodziwika bwino zoumitsira ndi izi:

    1. Kuuma kwa Spray: Kuthira mankhwalawo m'madontho ndikuwumitsa ndi mpweya wotentha (120–140°C) kuti apange ufa.
    2. Kuwumitsa VacuumKuumitsa pa 40–50°C pansi pa vacuum kuti gelatin isagwire ntchito bwino.

    Njira iliyonse yomwe yagwiritsidwa ntchito, kuwongolera kutentha ndi nthawi ndikofunikira kuti muwonetsetse kuti zinthuzo ndi zabwino komanso zokhazikika.