Giri Rohmad Barokah
Balai Besar Riset Pengolahan Produk dan Bioteknologi Kelautan dan Perikanan

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Pengaruh Penyimpanan Terhadap Profil Formaldehida Alami dan Kemunduran Mutu pada Ikan Beloso (Saurida tumbil) Umi Anissah; Giri Rohmad Barokah; Farida Ariyani
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 22 No 3 (2019): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.118 KB) | DOI: 10.17844/jphpi.v22i3.29123

Abstract

Greater lizardfish (Saurida tumbil) is known to contain endogenous formaldehyde content. Formaldehyde can kill spoilage bacteria, pathogens, and molds. However, this compound is also carcinogenic. The present research was conducted to determine the profile of endogenous formaldehyde and deterioration in the quality deterioration of greater lizardfish during frozen storage. The sample was provided from TPI Cituis, Tangerang, Banten. Sampling and analysis to determine the formaldehyde profile and fish deterioration were conducted once in a month for four months. The samples were then analyzed for formaldehyde profiles (formaldehyde, TMA, TMAO, and DMA) and quality deterioration profiles (TVB-N, acidity, TPC, and organoleptic plates). The results showed that greater lizardfish had 8.62±3.4 ppm formaldehyde content, which increased in the first-month storage and then decreased in subsequent months. The content of TMA and TMAO increased during frozen storage. Greater lizardfish quality deterioration analysis during storage showed the increasing of TVB-N content. Based on the organoleptic score, greater lizardfish can be stored for up to three months. The pH value and total bacteria of greater lizardfish increased in line with storage time.
Pembentukan Formaldehida Alami dan Penurunan Mutu Ikan Kerapu Cantik (Epinephelus fuscoguttatus × E. microdon) selama Penyimpanan pada Suhu Beku Giri Rohmad Barokah; Ajeng Kurniasari Putri; Umi Anissah; Jovita Tri Murtini
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 13, No 1 (2018): Juni 2018
Publisher : Balai Besar Riset Pengolahan Produk dan Bioteknologi Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jpbkp.v13i1.511

Abstract

AbstrakFormaldehida merupakan bahan yang dilarang digunakan sebagai bahan tambahan pangan (BTP) berdasarkan Permenkes No 033 Th 2012. Namun demikian, pada beberapa produk pangan termasuk ikan, formaldehida dapat terbentuk secara alami karena terjadinya proses penurunan mutu melalui penguraian secara enzimatis. Pembentukan formaldehida alami pada ikan terjadi melalui proses degradasitrimethylamine oxide  (TMAO) oleh enzim TMAO-ase. Berdasarkan latar belakang tersebut, dilakukan penelitian untuk mengkaji pembentukan formaldehida dan beberapa parameter penurunan kualitas pada ikan kerapu cantik (Epinephelus. fuscoguttatus × E. microdon) selama penyimpanan beku. Penelitian dilakukan melaui kuantifikasi pembentukan formaldehida alami,  total volatile base(TVB), trimetilamin (TMA), dan TMAO dalam sampel ikan kerapu cantik sesaat setelah kematian dan selama penyimpanan beku dalam kurun waktu lima bulan. Hasil penelitian menunjukkan bahwa kandungan TMA, TVB dan formaldehida alami antar individu sampel ikan kerapu cantik dalam populasi yang sama memiliki perbedaan yang nyata. Pembentuk an formaldehida alami dalam sampel ik an k erapu cantik selama lima bulan penyimpanan pada kondisi beku membentuk pola parabolik, di mana kadar formaldehida meningkat seiring waktu dan mencapai nilai maksimum hingga bulan ke-2 kemudian menurun hingga bulan ke-5. Pembentukan formaldehida alami dalam sampel ikan kerapu cantik selama peyimpanan dalam suhu beku berkorelasi positif dengan proses penurunan mutunya berdasarkan parameter TVB dan TMA. Formation of Natural Formaldehyde and Deterioration of Cantik Grouper (Epinephelus  fuscoguttatus ×  E.  microdon) during Frozen Storage AbstractFormaldehyde is banned to be used as food additive under the Ministry of Health Regulation Number 033/2012. However, in some food products including fish, formaldehyde can be formed naturally due to deterioration process through degradation enzy matically. Endogenous formaldehyde in fish formed through degradation of trimethylamine oxide (TMAO) by TMAO-ase. Based on these, a study on the formation of formaldehyde and some deterioration parameters of cantik grouper (Epinephelus  fuscoguttatus ×  E.  microdon) during frozen storage condition has been conducted. The research was conducted by observing the immediate post mortem formation of natural formaldehyde, total volatile base (TVB), trimethylamine (TMA) and TMAO of cantik grouper and during frozen storage within five months. The results showed that TMA, TVB and natural formaldehyde among individual samples of cantik groupers in the same population were significantly different. The formation of natural formaldehyde in cantik grouper within five months frozen storage form a parabolic pattern, in which formaldehyde content increased and reached a maximum point in the 2nd month and then decreased until the 5th month. The formation of natural formaldehyde in cantik grouper samples during frozen storage positively correlated with their deterioration processes based on TVB and TMA parameters.
Comparison of Storet and Pollution Index Method to Assess the Environmental Pollution Status: A Case Study from Lampung Bay, Indonesia Giri Rohmad Barokah; Farida Ariyani; Tuti Hartati Siregar
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 12, No 2 (2017): August 2017
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v12i2.287

Abstract

The determination of pollution status is an important process of environmental quality monitoring especially in strategic waters for coastal areas, such as in Lampung Bay. An effective and sensitive Water Quality Index (WQI) method is needed, to accurately determine the environmental pollution status. This study aimed to compare the sensitivity of Storage and Retrieval of Water Quality data System (STORET) and Pollution Index (PI) as a WQI method, a case study from Lampung Bay coastal waters, Indonesia.  Water quality analysis i.e. Dissolve Oxygen (DO), pH, salinity, nitrite, nitrate, phosphate and ammonia was conducted spatially (three zones of Lampung Bay; river mouth, aquaculture and bay area) and seasonally (April and October 2015). The study found that nitrate and phosphate values were exceeded the limits of water quality standard (Indonesia Ministry of Environment Decree No. 51/2004) for marine organisms. However it may still support the aquaculture activities. The two WQI methods produced different pollution status of Lampung bay. STORET was found to be more sensitive method. Pollution Index method revealed a status of moderately polluted while STORET showed heavily polluted status. Therefore, this study suggest the use of STORET index, compare to Pollution Index, in an assessment of pollution status at watershed area.