AbstrakKecap ikan merupakan salah satu produk perikanan dari proses fermentasi. Ikan yang digunakan dalam penelitian ini yaitu ikan tongkol (Euthynnus affinis) yang merupakan komoditas tangkapan tertinggi di Sulawesi Utara. Penelitian ini bertujuan untuk menentukan mutu mikrobiologi dari produk diversifikasi ikan tongkol menjadi kecap ikan yang aman untuk dikonsumsi. Penelitian ini menggunakan metode ekperimental. Penelitian ini menggunakan penambahan (A) 0%, (B) 9%, (C) 12%, (D) 15% sari buah nanas dan garam (G8) 8%, (G9) 9%, (G10)10% garam, dan penyimpanan didalam inkubator selama 6, 8, 10 hari. Variabel yang diamati adalah total lactic acid bacteria, Total mikroba, E. coli, Staphylococcus sp., pewarnaan gram, pH, kadar air dan uji organoleptik. Hasil penelitian menunjukkan bahwa sampel D (D1G10) dengan penambahan sari buah nanas 15 % menyebabkan penurunan jumlah total bakteri dan menyebabkan meningkatnya jumlah total bakteri asam laktat. Total lactic acid bacteria, Total mikroba, E. coli, Staphylococcus sp., pewarnaan gram, pH, kadar air dan uji organoleptik dengan penambahan sari buah nanas 15% masing-masing 1,0 x 10 2 ; 9,0 x 10 4 ; 5,46; 69,14%; negatif; 100 isolat positif batang; kenampakan 8; bau 8; dan rasa 8. Hasil tersebut sudah memebuhi standar nasional Indonesia (SNI) dan aman untuk dikonsumsi.Kata kunci: bakteri asam laktat, cemaran mikroba, fermentasi
Microbiologys Quality of Fish Sauce Tongkol (Euthynnus affinis) with Additions Pineapple Juice (Ananas comosus)Abstract Fish sauce is one of fish fishery product from fermentation process. In this study fish sauce made from tongkol fish (Euthynnus affinis) that has high catching in North Sulawesi. This study aimed to make diversification product from Tongkol fish into fish sauce safe to eat. The research method applied was experimental laboratories. In this research was by additions (A) 0%, (B) 9%, (C) 12%, (D) 15% pineapple juice and (G8) 8%, (G9) 9%, (G10) 10% salt and stored in an incubator at temperature 50ºC during 6, 8, 10 days. Variable measured were total lactic acid bacteria, total plate count, E. coli, Staphylococcus sp., gram strain, pH, water consentration and organoleptic test. The result showed that sample D (D1G10) with additions pineapple juice 15% caused decrease total pathogen bacteria and caused increase lactic acid bacteria. Showed that total lactic acid bacteria, total plate count, E. coli, Staphylococcus sp., gram strain, pH, water consentration, gram strain, organoleptic test with pineapple juice 15% was 1.0x10 2 ; 9.0x10 4 ; 5.46; 69.14%; negative; 100 isolate positive shaped rod; the appearance 8; smell 8; taste 8. The result accordance with Standard National Indonesia (SNI) and safe to eat.