Metrik

  • visibility 195 kali dilihat
  • get_app 336 downloads
description Journal article public Agritech: Jurnal Fakultas Teknologi Pertanian UGM

Karakteristik Fisikokimia Gelatin Tulang Ikan Patin (Pangasius Sutchi) Hasil Ekstraksi Menggunakan Limbah Buah Nanas (Ananas Comosus)

Yoni Atma, Hisworo Ramdhani, Apon Zaenal Mustopa, Mega Pertiwi, Rizkia Maisarah
Diterbitkan 2018

Abstrak

Fish bones are the most potential as an alternative source for gelatin production. Pangasius catfish bone is the one of the most promising source due to its high yield of gelatin. It has similar gel strength with the commercial gelatin and has a low ash content. The aim of this research was to determine the physical and chemical characteristics of Pangasius catfish bone gelatin extracted using pineapple waste. Pineapple waste has a low pH and contains citric acid. The research was conducted in two stages i.e. gelatin extraction and physicochemical characterization. Gelatin extraction was done by pre-treatment and main extraction. Pre-treatment was done by soaking the fish bone into pineapple waste for 32, 48, and 56 hours. The main extraction was carried out by soaking fish ossein in warm water for 5 hours at 75 °C. The sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) was used to analyze the gelatin existence. Fish bone gelatin has molecular weight ranging from 100-150 kDa and > 225 kDa. The hydroxyproline content of gelatin was 10.9–16.3 mg/g. Gelatin of Pangasius catfish bone extracted with pineapple waste has gel strength of 64.83 g.bloom g, hardness of 4.96 N, cohesiveness of 0.88, springiness of 1.03 mm, gumminess of 4.36 N, and chewiness of 2.78 N. Viscosity and pH of gelatin solution obtained were 3.17 cP and 4.52 respectively. The proximate characteristics obtained were moisture 8.59%, ash 0.95%, crude protein 47.60% and fat 7.71%. Some physicochemical parameters of gelatin resemble commercial gelatin and other fish bone gelatin.

Full text

 

Metrik

  • visibility 195 kali dilihat
  • get_app 336 downloads