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Wahju Tjahyaningsih
Manajemen Kesehatan Ikan dan Budidaya Perikanan, Fakultas Perikanan dan Kelautan, Universitas Airlangga, Indonesia.
Biochemistry, Genetics & Molecular Biology

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Pengaruh Ekstrak Alga Merah (Kappaphycus alvarezii) terhadap Jumlah Total Bakteri dan Nilai Organoleptik Ikan Kembung (Rastrelliger sp.) [ The Effect of Red Algae Extract (Kappaphycus alvarezii) against the Total Number of Bacteria and Organoleptic Value of Mackerel (Rastrelliger sp.)] Wahju Tjahyaningsih; Dyo Maliki Hakim; Sudarno Sudarno; Annur Ahadi Abdillah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 7 No. 1 (2015): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v7i1.11243

Abstract

Abstract Mackerel (Rastrelliger sp.) is a kind of fish that have high economic value and good nutrition but susceptible to decay. People often to use formaldehyde as a preservative so that the fish does not quickly to decay. The use of formaldehyde could be replaced by natural ingredients that contain antibacterial compounds, one of which is Kappaphycus alvarezii. This study aims to determine the effect of red algae extract (K.alvarezii) against the total number of bacteria and organoleptic value of mackerel (Rastrelliger sp.). The research design that done in this study is Completely Randomized Design (CRD). The treatments that given are immersion of mackerel in a solution of extract of K. alvarezii with a concentration of 0 ppm, 600 ppm, 700 ppm, 800 ppm and 1% solution of formaldehyde with four repetitions in each treatment. Data analyzes using Analysis of Variants (ANOVA) and followed by Duncan's Multiple Range Test to determine differences between treatments. The results showed that the extract of red algae (K.alvarezii) at a concentration of 0 ppm, 600 ppm, 700 ppm and 800 ppm significantly (p <0.05) against the total number of bacteria of mackerel (Rastrelliger sp.). The ability of extract of K. alvarezii at a concentration of 800 ppm equivalent to the ability of formaldehyde as an antibacterial ingredient in mackerel. K.alvarezii extract could inhibit the growth of bacteria but have not been able to maintain the quality of mackerel based on organoleptic test.
Potensi Pemanfaatan Ekstrak Etanol Alga Merah (Kappaphycus alvarezii) sebagai Pengawet Alami Pengganti Formalin pada Daging Ikan [Potential Use Of Red Algae Ethanol Extract (Kappaphycus alvarezii) As Formalin Substitute Natural Preservative In Meat Fish] Wahju Tjahyaningsih; Muhammad Amin Alamsjah; Annur Ahadi Abdillah
Jurnal Ilmiah Perikanan dan Kelautan Vol. 5 No. 2 (2013): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v5i2.11394

Abstract

Abstract Fish meat is more nutritious source of protein and relatively safe for human consumption. Fish meat more easily damaged than red meat product quality, so it is necessary that the process of pickling fish maintained in fresh condition and suitable for consumption. The ethanol extract of red algae Kappaphycus alvarezii been known have antioxidant and antimicrobial effects, so need some research on the use of red algae extract as a preservative. Red algae extract with a concentration of 400 ppm, 500 ppm, 600 ppm and 1 % formalin, each sample is used as a meat preservative for tilapia fillets as 40 grams. Samples of tilapia meat is soaked in an preservative solution as long as 60 minutes. During immersion, the samples of tilapia meat stored at room temperature. Observation of tilapia meat quality is done about six hours after meat removed from the preservative solution. Fish meat quality were analyzed to describe the organoleptic quality, methods of the TPC, and proximate analysis. The results showed that the ethanol extract of red algae Kappaphycus alvarezii 600 ppm has potential as a natural preservative based on test results of TPC, proximate and organoleptic test.
Co-Authors Abdillah, Annur Ahadi Dyo Maliki Hakim Mochammad Amin Alamsjah Sudarno Sudarno