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Journal : JURNAL PERIKANAN TROPIS

ANALISA LOGAM BERAT, KADAR GARAM DAN Salmonella PADA IKAN LOMEK (Harpodon nehereus) BIANG (Ilisha elongata) ASIN KERING Azka, Aulia; Ratrinia, Putri Wening
JURNAL PERIKANAN TROPIS Vol 7, No 1 (2020)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v7i1.1822

Abstract

Lomek and biang fish are types of fish commonly used as raw materials for making salted fish in Dumai. Industrial activity in Dumai can influence on heavy metal content in dried salted fish. In addition, the requirements for the quality of salted fish are salt concentration and Salmonella test. The aim of this study were to determine heavy metal (Pb and Cd), salt concentration, and Salmonella test in dried salted fish. The study was carried out the preparation of raw materials and the manufacture of salted fish using dry salting method with a salt concentration of 5%, 10% and 15% for lomek and biang fish. The second was the analysis of heavy metal, salt concentration, and Salmonella test. The addition of 10% salt concentration to Lomek fish was the highest result for Pb (1,48± 0,01 ppm), while all samples were not identified for Cd levels. The highest salt concentration was L3 that was 22,45%, while for Salmonella test results all samples were negative. Based on the results, it was concluded that Pb contamination passed the safe limit, while Cd was not detected. The difference in salt addition gave an effect on the salt concentration for dried salted lomek and biang. Salmonella were not found in all salted fish samples.Keywords : Food safety, pathogen, product quality, salted method 
ANALISA LOGAM BERAT, KADAR GARAM DAN Salmonella PADA IKAN LOMEK (Harpodon nehereus) BIANG (Ilisha elongata) ASIN KERING Aulia Azka; Putri Wening Ratrinia
JURNAL PERIKANAN TROPIS Vol 7, No 1 (2020)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v7i1.1822

Abstract

Lomek and biang fish are types of fish commonly used as raw materials for making salted fish in Dumai. Industrial activity in Dumai can influence on heavy metal content in dried salted fish. In addition, the requirements for the quality of salted fish are salt concentration and Salmonella test. The aim of this study were to determine heavy metal (Pb and Cd), salt concentration, and Salmonella test in dried salted fish. The study was carried out the preparation of raw materials and the manufacture of salted fish using dry salting method with a salt concentration of 5%, 10% and 15% for lomek and biang fish. The second was the analysis of heavy metal, salt concentration, and Salmonella test. The addition of 10% salt concentration to Lomek fish was the highest result for Pb (1,48± 0,01 ppm), while all samples were not identified for Cd levels. The highest salt concentration was L3 that was 22,45%, while for Salmonella test results all samples were negative. Based on the results, it was concluded that Pb contamination passed the safe limit, while Cd was not detected. The difference in salt addition gave an effect on the salt concentration for dried salted lomek and biang. Salmonella were not found in all salted fish samples.Keywords : Food safety, pathogen, product quality, salted method 
IDENTIFIKASI BAKTERI PADA SERASAH DAUN MANGROVE YANG TERDEKOMPOSISI DI BANDAR BAKAU KOTA DUMAI Putri Wening Ratrinia; Nirmala Efri Hasibuan; Aulia Azka; Sumartini Sumartini; Apri Mujiyanti; Kurnia Sada Harahap; Muh Suryono
JURNAL PERIKANAN TROPIS Vol 7, No 2 (2020)
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpt.v7i2.2349

Abstract

Bacteria has an important role in decomposition and productivity activities in mangrove ecosystem. The study about identification of decomposing mangrove litter bacteria in Dumai has never been done. The aim of this study is to determine Total Plate Count and identify the dominant bacterial species from decomposing Rizhopora sp, Xylocarpus sp, dan Avicennia sp litter in Dumai. The method used in this research was survey method, bacterial isolation was done by pour plate method which is used in total calculation of bacteria was Total Plate Count (TPC), and identify the dominant bacterial in mangrove litter. The total bacteria which gained on Avicennia sp leaf litter are 0,64 x 105 Cfu/ml. On the other hand, the total bacteria from Rhizopora sp leaf litter has a lower number of colonies that is 0,55 x 105± 0,01 Cfu/ml. The bacterial identification test was carried out by gram staining method and morphological observation by microscopy. The dominant bacterial species in three mangrove species (Rizhopora sp, Xylocarpus sp, dan Avicennia sp) are Micrococcus sp dan Aerococcus sp. Keywords : Total Plate Count, Micrococcus sp, Aerococcus sp, Organic Matterial