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Journal : Manfish Journal

Surimi Modifikasi pH Pencucian Daging Ikan Tongkol (Euthynnus sp) Terhadap Karakteristik Surimi Yang Dihasilkan Laksono, Untung Trimo; Putra, Endo Pebri Dani; Kusumawati, Rr. Puji Hastuti; Lasmi, Leni; Kartini, Sitta Indah
Jurnal Kelautan, Lingkungan, dan Perikanan Vol 5 No 1 (2024): MANFISH JOURNAL
Publisher : Jurusan Ilmu Kelautan dan Perikanan Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/manfish.v5i1.639

Abstract

The use of fish high in sarcoplasm such as tongkol (Euthynnus sp) as raw material for surimi requires a washing process to increase the yield and level of gel strength. Modifying the pH of washing surimi to be more alkaline is an effective method for increasing protein yield in the surimi processing. The aim of this research is to obtain the optimal surimi protein yield and determine the characteristics of the resulting gel. The research results showed that the optimum pH for washing tongkol surimi was pH 8 with 2 times washing (p>01). The proximate values ​​of tongkol are 76.58% water, 18.23% protein, 2.34% fat, 1.22% ash and 1.63% carbohydrates (By different). The proportion of sarcoplasmic protein and myofibrils in tongkol meat is 49.0% and 45.90%. The highest yield was obtained when modifying the water pH to 8 and twice washing time is about 64.75%. The texture characteristics of the kamaboko surimi profile analyzer were modified with washing water pH 8 and twice washing time, hardness 300 g, gumminess 202.90 g and chewiness 98.97 mJ. The water holding capacity (WHC) of kamaboko surimi tongkol is 53.50%.
Karakteristik Mutu Kaki Naga Ikan Nila Dengan Substitusi Tepung Mocaf Sebagai Produk Diversifikasi Vatria, Belvi; Primadini, Vivin; Kusumawati, Rr. Puji Hastuti
Jurnal Kelautan, Lingkungan, dan Perikanan Vol 5 No 2 (2024): MANFISH JOURNAL
Publisher : Jurusan Ilmu Kelautan dan Perikanan Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/manfish.v5i2.918

Abstract

Tilapia dragon feet are processed fish products that are currently developing. The combination of tilapia meat and mocaf flour can create dragon feet products with delicious taste, high nutrition, affordable price, and good for health. The purpose of this study was to describe the quality characteristics of tilapia dragon feet substituted with mocaf flour and to describe the best formulation of tilapia dragon feet with mocaf flour substitution. This study conducted an experiment using a one-factor completely randomized design (CRD) model with four levels. The factors tested were the substitution between tilapia meat and mocaf flour of 5%, 10%, 15%, and 20%. The substitution was calculated from the total weight of 100% (meat + mocaf flour). Parametric analysis used the F test in Anova. Non-parametric analysis used the Kruskal-Wallis test. This study found that the physical test of dragon fish feet, which includes a bite test obtained a value ranging from 6.15 - 6.42 (scale 9), a folding test of 3.45 - 3.83 (scale 5), gel strength ranging from 232.17 g.cm - 245.38 g.cm, water binding capacity ranging from 72.27% - 73.12%, and emulsion stability of 72.22% - 72.87%. The hedonic test of tilapia dragon fish feet which includes color obtained a value ranging from 6.21-7.39, aroma 7.89 - 7.81, texture 7.12 - 7.89, taste 6.95 - 7.66 and appearance 7.15 - 7.26. The chemical and microbiological quality characteristics of all dragon fish feet formulations still meet SNI quality standards. With physical quality characteristic specifications such as gel strength of 232.17 grams per centimeter, water binding capacity of 72.27%, and emulsion stability of 72.22%, formulation A1 is the best based on the panelists' preference level.