Asadatun Abdullah
Departemen Teknologi Hasil Perairan, Fakultas Perikanan Dan Ilmu Kelautan, Institut Pertanian Bogor Jalan Lingkar Akademik Kampus IPB Bogor 16680 Telepon (0251) 8622915 Faks. (0251) 8622916

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Deteksi bakteri pembentuk amina biogenik pada ikan Scombridae secara multiplex PCR: Detection of Biogenic Amine Producing Bacteria in Scombridae Fish based on Multiplex PCR assay Rizsa Mustika Pertiwi; Mala Nurilmala; Asadatun Abdullah; Nurjanah; Roza Yusfiandayani; M. Fedi A. Sondita
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 23 No 2 (2020): Jurnal Pengolahan Hasil Perikanan Indonesia 23(2)
Publisher : Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v23i2.31596

Abstract

Amina biogenik merupakan komponen basa nitrogen yang terbentuk oleh dekarboksilasi asam amino. Amina biogenik yang sering terdeteksi pada produk perikanan di antaranya histamin, tiramin dan kadaverin. Gen pengkode dekarboksilasi asam amino tersebut yaitu histidine decarboxylase (hdc), tyrosine decarboxylase (tdc) serta lysine decarboxylase (ldc). Penelitian ini bertujuan untuk mendapatkan isolat DNA bakteri beserta konsentrasi dan kemurniannya, menyeleksi media pertumbuhan bakteri, mendeteksi gen hdc, tdc dan ldc menggunakan multiplex PCR serta identifikasi bakteri.. Sampel yang digunakan yaitu ikan tuna beku, tongkol beku, cakalang beku, tuna loin, pindang tongkol potong dan pindang tongkol bumbu kuning serta kontrol positif menggunakan ikan tuna yang disimpan pada suhu ruang selama 3 hari. Penelitian terdiri dari tahap pra-pengayaan bakteri pada media marine broth dan lactose broth, isolasi DNA sampel tanpa dan hasil pra-pengayaan, uji kemurnian dan konsentrasi isolat serta amplifikasi gen target hdc, tdc, ldc menggunakan multiplex PCR. Hasil yang diperoleh yaitu kualitas isolat DNA bakteri pada umumnya sudah murni, dengan konsentrasi isolat 15,75-157,84 ng/µL. Teknik multiplex PCR berhasil mendeteksi gen hdc, tdc dan ldc pada ikan scombridae. Kondisi optimum amplifikasi PCR yaitu annealing pada suhu 50°C selama 90 detik. Gen yang terdeteksi pada sampel tanpa pra-pengayaan yaitu tdc, sedangkan ldc dan hdc ditemukan pada sampel hasil pra-pengayaan media lactose broth dan marine broth. Bakteri pembentuk amina biogenik teridentifikasi sebagai Enterococcus fecalis, M. morganii, E. aerogenes, Citrobacter sp., Hafnia paralvei dan Obesumbacterium proteus. Amina biogenik merupakan komponen basa nitrogen yang terbentuk oleh dekarboksilasi asam amino. Amina biogenik yang sering terdeteksi pada produk perikanan di antaranya histamin, tiramin dan kadaverin. Gen pengkode dekarboksilasi asam amino tersebut yaitu histidine decarboxylase (hdc), tyrosine decarboxylase (tdc) serta lysine decarboxylase (ldc). Penelitian ini bertujuan untuk mendapatkan isolat DNA bakteri beserta konsentrasi dan kemurniannya, menyeleksi media pertumbuhan bakteri, mendeteksi gen hdc, tdc dan ldc menggunakan multiplex PCR serta identifikasi bakteri.. Sampel yang digunakan yaitu ikan tuna beku, tongkol beku, cakalang beku, tuna loin, pindang tongkol potong dan pindang tongkol bumbu kuning serta kontrol positif menggunakan ikan tuna yang disimpan pada suhu ruang selama 3 hari. Penelitian terdiri dari tahap pra-pengayaan bakteri pada media marine broth dan lactose broth, isolasi DNA sampel tanpa dan hasil pra-pengayaan, uji kemurnian dan konsentrasi isolat serta amplifikasi gen target hdc, tdc, ldc menggunakan multiplex PCR. Hasil yang diperoleh yaitu kualitas isolat DNA bakteri pada umumnya sudah murni, dengan konsentrasi isolat 15,75-157,84 ng/µL. Teknik multiplex PCR berhasil mendeteksi gen hdc, tdc dan ldc pada ikan scombridae. Kondisi optimum amplifikasi PCR yaitu annealing pada suhu 50°C selama 90 detik. Gen yang terdeteksi pada sampel tanpa pra-pengayaan yaitu tdc, sedangkan ldc dan hdc ditemukan pada sampel hasil pra-pengayaan media lactose broth dan marine broth. Bakteri pembentuk amina biogenik teridentifikasi sebagai Enterococcus fecalis, M. morganii, E. aerogenes, Citrobacter sp., Hafnia paralvei dan Obesumbacterium proteus.
Autentikasi Produk Olahan Ikan Hiu Komersial menggunakan Teknik Species-Specific DNA Mini-barcodes.: Authentication of Commercially Shark Products Using Species-Specific DNA Mini-barcodes Techniques Asadatun Abdullah; Ari Elisa Ratih; Shabrina Aulia; Puji Rianti; Tati Nurhayati; Agoes Mardiono Jacoeb
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 23 No 2 (2020): Jurnal Pengolahan Hasil Perikanan Indonesia 23(2)
Publisher : Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v23i2.32226

Abstract

Pemanfaatan ikan hiu sebagai bahan baku produk olahan perikanan dapat menyebabkan berkurangnya populasi ikan hiu yang juga rentan akan kepunahan. Ikan hiu pada umumnya diperdagangkan dalam bentuk sirip, daging ikan yang diasinkan dan direbus, minyak ikan serta sebagai bahan subtitusi pada pakan hewan sehingga proses identifikasi menggunakan metode berbasis morfologi dan meristik sulit dilakukan. Sebagai alternatif proses autentikasi bahan baku produk olahan ikan hiu adalah menggunakan teknik DNA mini barcodes. Penelitian ini bertujuan untuk merancang dan mengaplikasikan primer DNA mini barcodes yang spesifik terhadap tiga species hiu terancam punah yang masuk dalam daftar CITES (Sphyrna lewini, Alopias pelagicus, Carcharhinus falciformis) serta mengaplikasikan pada berbagai produk olahan ikan hiu. Tahapan penelitian yang dilakukan meliputi koleksi sampel produk olahan perikanan, perancangan primer spesifik, isolasi DNA, pengujian kualitas dan kuantitas DNA, amplifikasi DNA, dan sekuensing. Berbagai produk olahan komersial berhasil diamplifikasi oleh primer spesifik yaitu pada target 300 pb (S. lewini), 285 pb (A. pelagicus) dan 352 pb (C. falciformes). Hasil sekuensing DNA sampel menunjukkan bahwa spesies teridentifikasi adalah S. lewini, A. pelagicus, C. falciformes dan Hemigaleus microstoma dengan kemiripan 99-100%. Hal tersebut menunjukkan bahwa masih terdapatnya pemanfaatan ikan hiu yang dilindungi secara ilegal, sehingga perlu penerapan regulasi yang lebih ketat untuk melestarikan spesies-spesies hiu yang terancam kepunahannya.
Perbandingan Metode Isolasi DNA pada Produk Perikanan Segar dan Olahan: Comparison of DNA Isolation Methods for Fresh and Processed Seafood Aninditya Artina Setiaputri; Giri Rohmad Barokah; Muh. Alsere Bardian Sahaba; Rahma Dini Arbajayanti; Nadia Fabella; Rizsa Mustika Pertiwi; Mala Nurilmala; Roni Nugraha; Asadatun Abdullah
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 23 No 3 (2020): Jurnal Pengolahan Hasil Perikanan Indonesia 23(3)
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 | DOI: 10.17844/jphpi.v23i3.32314

Abstract

Seafood product is an important commodity in the global trade market, however, seafood fraud has been increasingly reported. Therefore, a method to specifically identify species of seafood products is needed. DNA methods gain many interests for detection of seafood fraud due to its robustness. This study was aimed to determine the effectiveness of several methods for isolation of DNA from fresh and processed seafood. The DNA isolation methods used in this study were the CTAB DNAzol, TianGen, Qiagen, and Fasmac.. DNA concentration and purity were determinedusing nanodrop spectrofotometry and electrophoresis. DNA isolation showed that the DNA concentration of fresh seafood products was higher than the processed seafood products. DNA isolation using CTAB method have higher levels of DNA purity (1.60-2.00) than using commercial kits in all samples. The commercial kits offer a simple procedure and minimize the possibility of environmental contaminants.
Penambahan Genjer (Limnocharis flava) pada Pembuatan Garam Rumput Laut Hijau untuk Penderita Hipertensi: Yellow Velvetleaf (Limnocharis flava) Fortification in Ulva lactuca Seaweed Salt Production for Hypertensive Patients Nurjanah - Nurjanah; Agoes Mardiono Jacoeb; Ramlan; Asadatun Abdullah
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 23 No 3 (2020): Jurnal Pengolahan Hasil Perikanan Indonesia 23(3)
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 | DOI: 10.17844/jphpi.v23i3.32462

Abstract

Ulva lactuca can be utilized as a raw material for seaweed salt production. The seaweed salt with low sodium and high potassium could be used as an alternative to regular table salt for hypertensive patient. This research was aimed to determine the amount/ratio of the addition of L. flava in production of seaweed salt according to dietary salt standards for hypertensive patients. The analyzed parameters were mineral composition, NaCl content, heavy metal content, and antioxidant activity of salt U. lactuca seaweed and addition of L. flava. The production of seaweed salt started with mixing the seaweed flour with water (1:10), heated in water bath shaker at 40 ºC for 10 min, and then subsequently dried at 60 ºC for 30 h. The U. lactuca extract had IC50 48.64 ppm (DPPH) and antioxidant capacity 246.92 (CUPRAC). The L. flava extract had IC50 138.86 ppm, and antioxidant capacity 116.92 µmol/g. The U. lactuca salt resulted in a yield 32.36%, ratio of Na:K 1.49, NaCl 23.90%, antioxidant activity 93.24 ppm (DPPH), and antioxidant capacity 129.15 µmol/g (CUPRAC). The U. lactuca:L. flava (1:1) salt resulted in a yield 22.78% , a ratio of Na:K 0.59, NaCl 21.05% , antioxidant activity 118.87 ppm (DPPH), and antioxidant capacity 104.07 µmol/g (CUPRAC). The addition of L. flava reduced the Na:K ratio to 0.59 as well as the NaCl levels with relatively small decrease in antioxidant activity and capacity.
Karakteristik Fraksi Aktif Biopigmen Fukosantin Rumput Laut Cokelat sebagai Antioksidan dan UV-protector: Characteristics of Fucoxanthin’s Active Fraction from Brown Seaweeds Biopigments as Antioxidants and UV Protectors Asadatun Abdullah; Nurjanah Nurjanah; Ade Irma Suryani Nasution
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 24 No 1 (2021): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v24i1.35411

Abstract

Padina sp. and Sargassum sp. contains pigment namely fucoxanthins and have antioxidants, anticarcinogenic, and anti-UV. The objectives of this study were to determine the optimal concentration of acetone to produce the best fucoxanthin active fraction with antioxidant, total phenol, SPF value functions as well as to identify the profile of the compound with LC-MS/MS. Seaweeds were immersed in 10% DMSO before extracted with 80% and 90% acetone solvent. The results of antioxidant DPPH, FRAP, and ABTS were Padina sp. of 153.55 ppm, 94.22 μmol Fe2+/g, 66.43 ppm (80% acetone) and 65.76 ppm, 93.11 μmol Fe2+/g, 78.33 ppm (90% acetone); Sargassum sp. of 131.37 ppm, 103.67 μmol Fe2+/g, 57.29 ppm (80% acetone) and 103.24 ppm, 71.72 μmol Fe2+/g, 61.45 ppm (90% acetone). Total phenol of 80% dan 90% acetone from Padina sp. were 675.48 mg GAE/g and 852.90 mg GAE/g; Sargassum sp. of 565.81 mg GAE/g and 135.16 mg GAE/g. SPF value with optimal concentration 50 mg/mL had resulted of Padina sp. by 9.08 (80% acetone) and 17.10 (acetone 90%); Sargassum sp. of 7.56 (acetone 80%) and 3.56 (acetone 90%). Acetone 80% is the optimal solvent to produce the best fucoxanthin active fraction with the highest characteristics of yield, antioxidant activity, total phenol content, and SPF value.
Identifikasi Spesies Ikan Hiu dan Pari pada Produk Olahan Ikan Asap dengan Metode DNA Barcoding : Identification of Shark and Sting Fish Species in Smoked Fish Processed Products Using The DNA Barcoding Method Misla Alfitri; Asadatun Abdullah; Roni Nugraha
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 25 No 1 (2022): Jurnal Pengolahan Hasil Perikanan Indonesia 25(1)
Publisher : Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v25i1.38518

Abstract

Sharks and rays are a group of fish whose trade is regulated both locally and internationally. The high demand for shark products in the market can result in the scarcity of certain shark species in the wild. Authentication on processed shark products is needed to detect the type of shark species used in a product. The purpose of this study was to identify species of sharks and rays in processed smoked products originating from the PANTURA, Tegal Jawa Tengah using the DNA barcoding method. The research method consisted of sample collection, DNA isolation, DNA extraction, DNA concentration and purity, PCR amplification and sequencing, Electrophoresis, Sanger Sequencing, PCR testing with COI molecular marker, and analysis of bioinformatics data. Species identification results from processed products of stingrays and smoked sharks were detected using sharks, including Carcharhinus brevipinna, Telatrygon zugei, Rhizoprionodon oligolinx, Himantura uarnacoides, Maculabatis macrura, Hydrolagus novaezealandiae, and Rhynchobatus australiae. Rhynchobatus australiae and Carcharhinus brevipinna are species listed as a protected shark in CITES II. The sequences obtained have a similarity percentage between 99.84-100% with the sequences found in GenBank.
AMINO ACID PROFILE AND BIOACTIVE COMPOUNDS OF SEAHORSE Hippocampus comes Evi Maya Sari; Mala Nurilmala; Asadatun Abdullah
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.366 KB) | DOI: 10.29244/jitkt.v9i2.19295

Abstract

Seahorse is one of the marine living  resources usually used as ornamental fish, traditional medicinal materials, and souvenirs. The purpose of the study was to determine the proximate composition of wet and dry seahorses, determine the profile of amino acid hydrolyzate and powder of seahorses, and determines to content of bioactive compounds from the ethanol extract of seahorses on qualitatively. The sample of this study is seahorses obtained from nature. Prviously, seahorses were morphometric identified, subsequently, seahorses were made of the powder, hydrolyzate, and ethanol extract. Several analyzes used were qualitative analysis of proximate, amino acid, and phytochemical analysis. Morphometric identification results indicate that the type is Hippocampus comes. The proximate composition is water content is 66.16 ± 0.33% (wet) and 10.33 ± 0.16% (dry), ash content of 9.55 ± 0.15% (wet) and 9.65 ± 0.16% (dry), lipid content 1.18 ± 0.23% (wet) and 4.89 ± 0.37% (dry), protein content of 22.73 ± 0.17% (wet) and 69.83 ± 0.31% (dry), carbohydrate 0.39 ± 0.23 (wet) and 5.50 ± 0.34 (dry). The amino acid composition both on hydrolyzate and powder comprising 9 essential amino acids are lysine, leucine, isoleucine, phenylalaline, valine, methionine, histidine, arginine, and threonine and 6 non essential amino acids are tyrosine, alanine, glycine, serine, glutamic acid, and aspartic acid. The results of identification of bioactive compounds is flavonoids, triterpenoids, steroids, saponins, and phenol of hydroquinone. Keywords: Hippocampus comes, proximate analysis, amino acid, and bioactive compounds
PERUBAHAN KIMIA, MIKROBIOLOGIS DAN KARAKTERISTIK GEN HDC PENGKODE HISTIDIN DEKARBOKSILASE PADA IKAN TONGKOL ABU-ABU Thunnus tonggol SELAMA PENYIMPANAN SUHU DINGIN Mala Nurilmala; Asadatun Abdullah; Vicentius Marco Matutina; Nurjanah; Roza Yusfiandayani; M. Fedi A. Sondita; Hanifah Husein Hizbullah
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (942.362 KB) | DOI: 10.29244/jitkt.v11i2.23007

Abstract

Histamin merupakan senyawa amin biologis yang dapat terbentuk dari histidin bebas dalam daging ikan pada fase post rigor. Laju pertumbuhan histamin dapat diperlambat dengan cara menjaga mutu ikan menggunakan suhu dingin. Tujuan dari penelitian ini adalah menentukan lama waktu penyimpanan, perubahan kimia dan mikrobiologis ikan tongkol Thunnus tonggol serta waktu terdeteksinya gen hdc selama penyimpanan suhu 8±3°C. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) dengan parameter perbedaan waktu penyimpanan ikan (1,2,3,4,5,6,7 hari) dan perbandingan es 1:1. Hasil penelitian menunjukkan ikan tongkol abu-abu mengalami kemunduran mutu selama 7 hari penyimpanan. Nilai organoleptik dan pH mengalami penurunan selama penyimpanan dan pada hari ketujuh ikan berada pada fase rigormortis. Nilai TVB dan TPC meningkat selama penyimpanan dan pada penyimpanan hari keenam sudah melewati batas aman untuk dikonsumsi. Kadar histamin pada hari ketujuh yaitu 1,96 ppm. DNA berhasil di-isolasi dan terdeteksi gen hdc, namun hasil amplifikasi belum efektif, sehingga diperlukan optimalisasi metode PCR. Profil protein yang terbentuk selama penyimpanan berdasarkan hasil SDS-PAGE mulai terpisah karena adanya aktivitas enzim katepsin.
Aktivitas Antioksidan dan Komponen Bioaktif Kerang Pisau (Solen spp) Nurjanah Nurjanah; Laili Izzati; Asadatun Abdullah
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 16, No 3 (2011): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.88 KB) | DOI: 10.14710/ik.ijms.16.3.119-124

Abstract

Kerang pisau (Solen spp) merupakan salah satu jenis moluska dari kelas Bivalva yang banyak ditemukan di daerah pantai berlumpur di perairan Kabupaten Pamekasan Madura.Tujuan penelitian adalah menentukan aktivitas antioksidan dan komponen bioaktif yang terkandung dalam kerang pisau. Pengujian yang dilakukan meliputi analisis aktivitas antioksidan dengan metode DPPH, dan uji fitokimia. Kerang pisau memiliki aktivitas antioksidan yang terlihat dari nilai LC50 yang diperoleh. Nilai LC50 dari ekstrak kloroform sebesar 2008,52 ppm, ekstrak etil asetat 1593,87 ppm dan ekstrak metanol 1391,08 ppm. Ekstrak kasar kerang pisau mengandung alkaloid, steroid, dan flavonoid. Kerang pisau dapat dinyatakan sebagai salah satu jenis kerang-kerangan penghasil senyawa antioksidan dan dapat dikembangkan, baik dalam bidang pangan maupun farmasi.  Kata kunci:  Aktivitas antioksidan, kerang pisau (Solen spp), senyawa bioaktif. Razor clams (Solen spp) were commonly found in muddy Pamekasan waters, Madura. This research was conducted to determine the potential of razor clams as one type of shellfish producing antioxidant compounds. The tests included quantitative test of antioxidant activity by DPPH method, and phytochemical test. Razor clams has antioxidant activity as showed on the LC50 values obtained. LC50 value of chloroform, ethyl acetate, and methanol extract were 2008 2 ppm, 1593,87 ppm and 1391,08 ppm, respectively. The crude extract of razor clams is contained 3 bioactive components in the forms of alkaloids, steroids,and flavonoids. Razor clams can be expressed as one type of shellfish-producing antioxidant compounds and can be developed, both in food and pharmaceutical fields.  Key words: antioxidant activity, razor clams (Solen spp), bioactive compound.
ANALISIS KANDUNGAN LOGAM BERAT DAGING KIJING LOKAL (Pilsbryoconcha exilis) DARI PERAIRAN SITU GEDE, BOGOR Nurjanah Nurjanah; Rodieser Sembiring; Asadatun Abdullah
Asian Journal of Innovation and Entrepreneurship Vol 1 No 01 (2012): January 2012
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this research was to examine the content of heavy metals Hg, Cd, and Pb of small and large clams over a period of two months (May and July). In this study, depuration system was applied in an effort to reduce the content of heavy metals. The study was done with inventorisation of the sample area, analysis of the characteristics of clams, operation of depuration system, and analysis of content of Hg, Cd, and Pb. Clam in Situ Gede waters showed heavy metal content of mercury and cadmium that were not detected in meat during the period of two months (May and July) both in large and small clams. Content of lead in May was higher than in July. The average lead in waters Situ Gede during the two periods amounted to 1.34 ppm in small clams and 1.44 ppm in large clams. Depuration system could reduce Pb contents in small clams 0.0861 ppm after 10 days and 0.1506 ppm after 20 days and in large clam 0.0513 ppm after 10 days and 0,0835 ppm after 20 days.