Abstract
Jambal roti is a fermented product of sea catfish (Arius thalassinus) with the manufacturing process uses a high salt concentration (30%), and is still done traditionally. High salt in fish processing causes consumers to hesitate in consuming the product. The fish fermentation process involves several bacteria, including lactic acid bacteria, which will break down fish protein into other compounds that affect the chemical and microbiological characteristics of the product. This study aims to analyze the effect of supplementation of the variation of salt content (20%, 25% and 30%) and the indegenous lactic acid bacteria (control, Lactobacillus plantarum, Pediococcus acidilactici and Pediococcus pentosaceus) on the chemical and microbiological characteristics of the jambal roti. The results showed that the 25% salt content with Lactobacillus plantarum supplementation had the best characteristics among the other treatments, namely the number of coliform bacteria (2,11 log cfu / gram) and Salmonella-Shigella (2,18 log cfu / gram) the least among others treatments, total bacteria (7,26 log cfu/gram) and total lactic acid bacteria (4,58 log cfu/gram). Chemical characteristics includes moisture content 32,53%, ash content 23,08% wb, Aw 0,67, fat content 1,74% (w / b), NaCl content 18,10% and total protein 35,11%..
Highlights
Ikan asin adalah bahan makanan yang terbuat dari daging ikan yang diawetkan dengan menambahkan banyak garam
Tujuan penelitian ini adalah mengkaji pembuatan jambal roti dengan variasi kadar garam (20%, 25% dan 30%) dan suplementasi bakteri asam laktat indigenus dari jambal roti terhadap karakteristik kimia dam mikrobiologi jambal roti
Cypermethrin residues on Jambal Roti product of giant catfish (Arius thalassinus Ruppell)
Summary
Bahan yang digunakan adalah ikan manyung (Arius thalassinus) dari PT Holy Mina Jaya (Rembang), yang telah dibuang isi perut dan kepala, kemudian dibelah 2, garam lokal beriodium Analisis mikrobiologi meliputi total bakteri dengan media PCA (Merck), total bakteri asam laktat dengan media MRS (de Mann Rogosa and Sharpe) (merck) agar ditambah CaCO3, total coliform dengan media VRBA (Merck) dan Total Salmonella-Shigella dengan media SSA (merck). Alat yang digunakan adalah moisture analyzer Shimadzu type MOC63U (analisis kadar air), oven, inkubator, timbangan analitik, soxhlet (analisis kadar lemak). Aw meter pawkit, buret, peralatan analisis mikrobiologi dan spectrophotometer UV Thermo Scientific Genesys 10s uv-vis
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