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      Ekstraksi Kolagen Kulit Tuna Sirip Kuning (Thunnus albacares) Menggunakan Enzim Pepsin dan Papain

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      Date
      2021
      Author
      Baharuddin, Taufan Ichza
      Nurhayati, Tati
      Nurjanah
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      Abstract
      Kolagen merupakan senyawa protein rantai panjang yang tersusun atas asam amino alanin, arginin, lisin, glisin, prolin, serta hiroksiprolin. Kolagen merupakan protein jaringan ikat yang dapat dihasilkan dari limbah kulit ikan. Tujuan penelitian ini untuk menentukan nilai aktivitas spesifik enzim pepsin yang diekstraksi dari lambung ikan tuna serta menentukan karakteristik kolagen yang diekstraksi dengan metode enzimatis. Metode penelitian terbagi menjadi 2 tahap yaitu tahap ekstraksi enzim pepsin dari lambung ikan tuna sirip kuning dan tahap ekstraksi kolagen kulit tuna dengan metode enzimatis. Enzim pepsin yang diekstraksi dari lambung tuna sirip kuning memiliki nilai aktivitas spesifik 8680 U/mg. Waktu perendaman dengan NaOH terbaik adalah 12 jam. Waktu Hidrolisis kulit dengan asam asetat terbaik adalah 72 jam. Kolagen larut papain memiliki bobot molekul 310 kDa, gugus fungsi amida A, B, I, II, dan III,dengan rendemen 2,13%. Kolagen larut pepsin sebagian memiliki bobot 328 kDa, gugus fungsi amida A, I, II, dan III, dengan rendemen 0,8%. Hidrolisat kolagen larut pepsin memiliki bobot molekul 69 kDa, gugus fungsi amida A, I, dan III, dengan rendemen 32%.
       
      Collagen is a long-chain protein compound composed of the amino acids alanine, arginine, lysine, glycine, proline, and hydroxyproline. Collagen is a connective tissue protein that can produce from fish skin waste. The purpose of this study was to determine the specific activity value of the pepsin enzyme extracted from the stomach of tuna and to determine the characteristics of the collagen extracted by the enzymatic method. The research method was divided into 2 stages, namely the extraction stage of the pepsin enzyme from the stomach of yellowfin tuna and the extraction stage of tuna skin collagen using the enzymatic method. The pepsin enzyme extracted from the stomach of yellowfin tuna has a specific activity value of 8680 U / mg. The best soaking time with NaOH is 12 hours. Hydrolysis time of skin with acetic acid is best 72 hours. Papain soluble collagen has a molecular weight of 310 kDa, amide functional groups A, B, I, II, and III, with a yield of 2,13%. Pepsin soluble collagen partly weighed 328 kDa, amide functional groups A, I, II, and III, with a yield of 0,8%. Pepsin soluble collagen hydrolyzate has a molecular weight of 69 kDa, amide functional groups A, I, and III, with a yield of 32%.
       
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      http://repository.ipb.ac.id/handle/123456789/106655
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      • UT - Aquatic Product Technology [2463]

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      Indonesia DSpace Group 
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