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Analisis mutu Ikan Tuna selama lepas tangkap Widiastuti, Indah; Putro, Sumpeno
Maspari Journal : Marine Science Research Vol 1, No 1 (2010): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.58 KB) | DOI: 10.36706/maspari.v1i1.1056

Abstract

Indonesia is one of the leading tuna exporters in the world. The total export volume of tuna in 2004 was 94,221 tons valued at US $ 243,937 million However, export of fresh tuna has been hampered by several quality problems, particularly high content of histamine and heavy metals. FDA (Food and Drug Administration) reported that during period of 2001-2005, there were 350 cases of tuna rejections in the US due to the above mentioned problem. Likewise, in recent years, exports of tuna from Indonesia to European Union member countries have been subjected to RASFF (Rapid Alert System for Food and Feed) and export suspension by the European Commission. It is obvious therefore, that efforts to improve post harvest handling are highly imperative. This research was conducted in Pelabuhan Ratu, West Java and Research Center For Marine and Fisheries Product Processing and Biotechnology, Jakarta. Newly caught tuna were unloaded and transported to Jakarta with proper icing. Quality changes were monitored, including core temperature of fish, pH, K-value (inosine, hipoxantine, IMP, AMP, ADP, ATP), histamine, heavy metal (Hg and Cd), and microbiology. The pH value of fresh tuna samples upon arrival at the laboratory varied between 5.85-6.01. Whereas the K-value and histamine contents were 2.01- 13.74% and 1.28-1.61 mg/100g respectively. Total microbial count and histamine producing bacteria were 102-2.5 x 104 cfu/g and 101-1.99 x 102 cfu/g respectively. Mercury and cadmium content were 0.076-0.501 ppb and 0.052-0.398 ppb respectively.   Keywords : Post Catching, Quality, Tuna     Indonesia adalah salah satu eksportir tuna terkemuka di dunia. Total volume ekspor ikan tuna pada tahun 2004 adalah 94.221 ton senilai US $ 243.937 juta Namun, ekspor tuna segar telah terhambat oleh beberapa masalah kualitas, khususnya yang tinggi kandungan histamin dan logam berat. FDA (Food and Drug Administration) melaporkan bahwa selama periode tahun 2001-2005, ada 350 kasus penolakan tuna di AS karena masalah tersebut di atas. Demikian juga, dalam beberapa tahun terakhir, ekspor tuna dari Indonesia ke negara-negara anggota Uni Eropa telah mengalami RASFF (Rapid Alert System for Food and Feed) dan suspensi ekspor oleh Komisi Eropa. Jelas karena itu, bahwa upaya untuk meningkatkan penanganan pasca panen sangat penting. Penelitian ini dilaksanakan di Pelabuhan Ratu, Jawa Barat dan Pusat Penelitian Kelautan dan Perikanan Untuk Pengolahan Produk dan Bioteknologi, Jakarta. Baru menangkap ikan tuna yang dibongkar dan diangkut ke Jakarta dengan icing yang tepat. Kualitas perubahan dimonitor, termasuk suhu inti dari ikan, pH, K-nilai (inosine, hipoxantine, IMP, AMP, ADP, ATP), histamin, logam berat (Hg dan Cd), dan mikrobiologi. Nilai pH sampel tuna segar pada saat kedatangan di laboratorium bervariasi antara 5,85-6,01. Sedangkan nilai-K dan isi histamin adalah 2,01-13,74% dan 1,28-1,61 mg/100g masing. menghitung mikroba bakteri penghasil histamin adalah Total dan 102-2,5 x 104 cfu / g dan 101-1,99 x 102 cfu / g masing-masing. Mercury dan konten cadmium adalah 0,076-0,501 ppb dan 0,052-0,398 ppb masing. Kata kunci: Kualitas, Pos Penangkapan, Tuna
OPTIMIZATION OF INJECTION MOLDING PARAMETERS TO MINIMIZE SHRINKAGE AND MAXIMIZE TENSILE STRENGTH IN THE RECYCLING PROCESS OF DISPOSABLE FACE MASKS Widyasmoro, Irvan Bayu; Widiastuti, Indah; Estriyanto, Yuyun; Budiyanto, Khansa Qonitatillah
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1518

Abstract

Recycling used face masks into useful products is an alternative way to reduce the accumulation of medical waste during the COVID-19 period. The main objective of this study was to determine the effect of injection molding parameters of barrel temperature, molding temperature, and cooling time on tensile strength and plastic shrinkage during the recycling process of used disposable face masks. The study utilized a Design of Experiment (DoE) using the Taguchi Orthogonal L9 method. In this current study, the barrel temperatures were set at 170oC, 190oC, and 220oC. with the molding temperatures used are 45°C, 60°C, and 75°C, while the values of cooling time were 26s, 43s, and 52s. The tensile test was carried out according to the ASTM D638 type V standard for measuring the strength of materials. The findings demonstrate that the most important factor in achieving the highest tensile strength is the molding temperature, which contributes 34.54% and is best combined with a barrel temperature of 170°C, a molding temperature of 60°C, and a cooling period of 52s. By contributing 54.40% to the parameter combination of barrel temperature of 170°C, molding temperature of 45°C, and cooling time of 52s, the molding temperature becomes the most crucial factor to produce the least amount of shrinkage
Chemical Characteristics of Scales, Skin And Bones of Snakehead Fish (Channa Striata) After Soaked With Sodium Hydroxide Solution Muliajaya, Fitra; Pratama, Filli; Herpndi; Widiastuti, Indah
Journal of Smart Agriculture and Environmental Technology Vol. 2 No. 1 (2024): April 2024: Published, 2024-04-02
Publisher : Indonesian Soil Science Society of South Sumatra in Collaboration With Soil Science Department, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2024.2.1.9-12

Abstract

Snakehead fish is one of the freshwater products that has potential in South Sumatra. Utilization of snakehead fish as a side dish and diversification product is for typical Palembang food processing. Most of these preparations used meat as a raw material, leaving waste scales, skin and bones which had the potential to be used as raw materials for collagen. One of the stages of collagen production was soaking in NaOH. The aim of this research was to examine the chemical properties of scales, skin and bones of snakehead fish after soaking in NaOH. The soaking process was carried out in 0.05M NaOH for 6 hours and the water was changed every 2 hours with a ratio of waste to NaOH solution of 1:10. The parameters analyzed included water content, ash content and protein. The results showed the proportion of scales, skin and bones of snakehead fish respectively of 6% scales, 5.7% skin and 4.20% bones. Proximate analysis tests showed levels in snakehead fish scales of 55.67%, skin by 81.15% and bones by 50.80%. The average value of ash content was in snakehead fish scales of 48.14%, skin by 9.27% and bones by 55.42%. The average value of protein content was in snakehead fish scales by 29.60%, skin by 67.59% and bones by 23.66%.
Efektivitas Penggunaan Media Pembelajaran Berbasisi Mobile Sebagai Upaya Peningkatan Kecakapan Siswa di Abad 21 pada Sekolah Menengah Kejuruan Hidayati, Khusnul; Pambudi, Nugroho Agung; Widiastuti, Indah
JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Vol 17, No 2 (2024): July
Publisher : Faculty of Teacher Training and Education Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jiptek.v17i2.75523

Abstract

Dalam menghadapi perkembangan teknologi dan komunikasi di era modern ini, penguasaan keterampilan abad ke-21 menjadi sangat penting, seperti berpikir kritis, pemecahan masalah, komunikasi, kolaborasi, serta kreativitas dan inovasi. Keterampilan ini diakui sebagai elemen kunci untuk menciptakan lulusan perguruan tinggi yang siap menghadapi tantangan global. Masalah ini sejalan dengan kebutuhan pengembangan keterampilan abad ke-21, yang mencakup critical thinking and problem solving, communication, collaboration, dan creativity and innovation. Untuk mengatasi masalah ini, diperlukan pengembangan kurikulum yang berfokus pada persiapan masa depan dan kebutuhan industri di abad ke-21. Salah satu model pembelajaran yang dapat meningkatkan keterampilan tersebut adalah discovery learning, yang mendorong pemikiran kritis, kreativitas, dan pemecahan masalah. Namun, terdapat kendala, seperti waktu pelaksanaan dan keterbatasan teknologi, yang harus diperhatikan. Dalam konteks pembelajaran akuntansi di SMK, penelitian ini mengusulkan pengembangan model pembelajaran daring berbasis discovery learning yang dapat mendukung pengembangan keterampilan abad ke-21. Metode penelitian yang digunakan adalah metode R&D (Research and Development) untuk mengembangkan dan memvalidasi produk pembelajaran yang relevan dengan kebutuhan SMK.
Analisis Persepsi Siswa SMK PGRI 1 Surakarta Dalam Pengelolaan Sampah Plastik Berdasarkan Theory of Planned Behavior Wibowo, Yusuf Bagas; Estriyanto, Yuyun; Widiastuti, Indah
JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Vol 17, No 2 (2024): July
Publisher : Faculty of Teacher Training and Education Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jiptek.v17i2.76741

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh sikap perilaku, norma subjektif, dan perceived behavior control terhadap persepsi pengelolaan sampah plastik, serta mengevaluasi pengaruh pendidikan daur ulang terhadap perubahan persepsi tersebut pada peserta didik. Penelitian ini menggunakan pendekatan kuantitatif dengan metode studi kasus dan desain one group pretest-posttest. Sampel penelitian terdiri atas 21 siswa kelas X Teknik Otomotif di SMK PGRI 1 Surakarta. Data dikumpulkan melalui kuesioner sebelum dan setelah sesi materi dan praktik. Hasil analisis menunjukkan bahwa sikap perilaku tidak memengaruhi persepsi pengelolaan sampah plastik (Sig. 0,307 > 0,05). Norma subjektif memiliki pengaruh positif terhadap persepsi (Sig. 0,039 < 0,05; koefisien regresi 1,089). Perceived behavior control juga berpengaruh, namun dengan arah negatif (Sig. 0,039 < 0,05; koefisien regresi -1,132). Pendidikan daur ulang terbukti meningkatkan persepsi pengelolaan sampah plastik, dengan rata-rata nilai post-test (19,14) lebih tinggi dibandingkan pre-test (16,10). Penelitian ini menegaskan pentingnya pendidikan untuk meningkatkan kesadaran siswa dalam pengelolaan sampah.
Efektivitas Model Project Based Learning (PjBL) Berbantuan Aplikasi Android Akuntansi Umum (AKU) Terhadap Hasil Belajar Akuntansi Dasar Siswa Sekolah Menengah Kejuruan Budianto, Aris; Pambudi, Nugroho Agung; Widiastuti, Indah
JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Vol 17, No 2 (2024): July
Publisher : Faculty of Teacher Training and Education Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jiptek.v17i2.76226

Abstract

Perkembangan teknologi android sangat  berpengaruh terhadap pendidikan, hal ini ditandai semakin banyaknya penggunaan handphone untuk pembelajaran. Penelitian ini  bertujuan  untuk  mengkaji  kelayakan  penerapan  dan  efektivitas Model Project  Based  Learning  (PjBL)  berbantuan aplikasi android  Akuntansi Umum (AKU) terhadap hasil belajar akuntansi dasar peserta didik Sekolah Menengah Kejuruan. Metode penelitian menggunakan pendekatan kuantitatif dengan desain Quasi Experimental. Populasi penelitian adalah peserta didik kelas X AKL Sekolah Menengah Kejuruan tahun pelajaran 2022/2023. Sampel penelitian dari kelas X AKL1 sebagai kelas eksperimen dan kelas X AKL2 sebagai kelas kontrol. Teknik  pengumpulan data menggunakan  pre-test dan post-test. Teknik analisis data menggunakan uji kesamaan rata-rata dan uji N-Gain. Rata-rata perolehan nilai post-test dengan menggunakan model PjBL yang sama dengan media yang berbeda, kelas eksperimen memperoleh hasil 81,1 dari pada kelas kontrol 77,4. Hasil uji hipotesis perolehan t hitung sebesar 2,082 > t tabel sebesar 1,978 serta nilai signifikansi 0,041<0,05. Simpulan dari penelitian ini adalah penerapan model Project Based Learning (PjBL) berbantuan aplikasi android AKU terbukti efektif dan dapat meningkatkan hasil belajar akuntansi dasar peserta didik.
Investigasi Media Interaktif Berbasis Role-Playing Games Untuk Meningkatkan Minat Belajar Siswa SMK Agustin, Hanifah Hani; Pambudi, Nugroho Agung; Widiastuti, Indah
JIPTEK: Jurnal Ilmiah Pendidikan Teknik dan Kejuruan Vol 17, No 2 (2024): July
Publisher : Faculty of Teacher Training and Education Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jiptek.v17i2.76085

Abstract

Undang-undang No.20 Tahun 2003 bertujuan untuk pengembangan potensi peserta didik yang beriman pada Tuhan Yang Maha Esa, patuh kepada hukum dan prinsip moral. Role Playing Game (RPG) merupakan model pembelajaran yang berfokus pada pemecahan masalah. Media pembelajaran yang digunakan ada tiga jenis adalah modul komprehensif, program pembelajaran media dan lembar kerja siswa (LJK). Ketiga jenis media tersebut melengkapi sumber daya pendidikan yang tersedia. Penelitian ini menggunakan metode penelitian pengembangan (Research and Development). Hasil validasi dari para ahli dan pengguna menunjukkan bahwa materi pendidikan yang dipromosikan dalam penelitian ini memenuhi kriteria validasi dan pengujian yang telah dilakukan. Aspek penilaian penelitian ini terdiri dari rekayasa perangkat lunak, desain pembelajaran, dan  komunikasi visual. Paper ini bertujuan untuk mengembangkan kurikulum pendidikan media berbasis game untuk siswa kelas X. Kurikulum ini mengajarkan tentang pengkodean resistor dan hubungan resistor menggunakan mesin game RPG Maker MV. Meskipun media memberitakan sebaliknya, diperlukan penelitian lebih lanjut tentang pengembangan RPG sebagai bahan teknis agar konten RPG di media pendidikan tidak menimbulkan masalah baru.
Recycling of Disposable Face Mask: Experimental Studies on Different Types of Polymer Mixture Widiastuti, Indah; Wijayanto, Danar Susilo; Nabila, Urfan
Aceh International Journal of Science and Technology Vol 13, No 2 (2024): August 2024
Publisher : Graduate School of Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.13.2.41228

Abstract

The COVID-19 pandemic has caused significant impacts on the environment since the use of disposable face masks leads to the accumulation of plastic waste. In this study, a two-step extrusion and injection molding was performed to manufacture polymer blends consisting of 80% used face mask and 20% fraction of one of these recycled polymer mixtures: polypropylene (PP), high-density polyethylene (HDPE), and PET. ASTM D256 standard was used to evaluate the mechanical properties of the resulting polymer blend materials, while the physical performance was assessed by analyzing the shrinkage. It was found that adding other polymeric mixtures could not enhance the mechanical properties of pure disposable face masks, as measured by the impact strength. However, incorporating the recycled polymer into the face mask mixture is revealed to decrease shrinkage. Observation of the morphology surface of the fracture impact specimen using a Scanning Electron Microscope (SEM) confirmed the less miscibility within the recycled polymer/face mask. The blend, which contains recycled PET, showed the lowest percentage of shrinkage. Taking advantage of its recyclability characteristic, this current work may provide an alternative approach for using the disposable face mask in low load-bearing applications.
Pelatihan Pembuatan Produk Instan Berbasis Fermentasi Ikan di UMKM Barokah Palembang-Sumatera Selatan: Training of Making Instant Product from Fish Fermented in UMKM Barokah Palembang-South Sumatera Rinto, Rinto; Herpandi, Herpandi; Widiastuti, Indah; Sudirman, Sabri; Indasari, Dwi; Yunindyawati, Yunindyawati
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 9 No. 5 (2024): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v9i5.4802

Abstract

The COVID-19 pandemic, which has spread worldwide since the beginning of 2020, has also impacted the development of the UMKM in Palembang. On the other hand, the Department of Fisheries Product Technology, Faculty of Agricultural, University of Sriwijaya, constantly conducts research based on local resources that have produced patents. One of the resulting patents is for instant bekasam with registration number P00202110332. The community activity program that introduces the technology for making instant products from fermented fish begins with preparations including preparation of supporting facilities and product manufacture. The training on making instant products was attended by more than 30 target audiences who are members of the fish processing and marketing business group in the Keramasan Village, Kertapati District, Palembang. The implementation of activities has been published in print and online media, including via: https://beritapagi.co.id/2022/09/18/unsri-gelar-pelatihan-pembuatan-produk-instan-berbasis-fermentasi-ikan.html
EFFECTIVENESS OF THE OIL TO GAS FUEL CONVERSION PROGRAM FOR FISHERMEN IN PALEMBANG CITY Shelia, Shelia; Sriati, Sriati; Priyanto, Gatot; Widiastuti, Indah; Fariani, Armina
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 15 No. 2 (2024): Marine Fisheries: Journal of Marine Fisheries Technology and Management
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v15i2.54328

Abstract

The Oil to Gas Fuel Conversion Program aims to make it easier for fishermen to obtain fuel at affordable prices, hence they can increase their income. Program implementation is declared effective if it runs smoothly and produces the expected results. This research aims to analyze the effectiveness of the program, analyze the income of program recipients and non-program recipients, and analyze the relationship between program effectiveness and income. Interviews using questionnaires were conducted with research subjects, namely 51 members of the Joint Business Group who received the program and 30 members who did not receive the program. Data in the form of attitudes or opinions of program recipient respondents are analyzed based on the achievement of effectiveness scores, income data from two groups of respondents were analyzed based on the difference between two means tests, and the relationship between effectiveness and income was analyzed based on the Spearman rank correlation test. The research results showed that the program's effectiveness was 94.20% (very high). The t-count value of 4.816 is greater than the t-table of 1.994, indicating that there is a significant difference between the income of program recipients and non-program recipients. The relationship between program effectiveness and income is very weak and not significant, with a coefficient value of 0.032. The effectiveness of the program does not directly affect income, but the existence of the program increases fishing efforts and the income of program recipients. Keywords: Conversion; effectiveness; fishermen; gas fuel; Spearman Rank Correlation Test
Co-Authors Ade Pangestu Agus Supriadi Agustin, Hanifah Hani Amri, Saehful Andini, Jesicha ANWAR IBRAHIM, ANWAR Aris Budianto, Aris Armina Fariani Ayu Fiska Nurryna Bakar, Mohd. Shafie bin BIDARTI, AGUSTINA Budi Harjanto Budiyanto, Khansa Qonitatillah bukhori, muhammad salafudin Cahyono, Budi Tri Cucuk Wawan Budiyanto Danar Susilo Wijayanto Dewanto Harjunowibowo Dewi Larasati, Dewi Dian Nugroho, Gama Didik Santoso Ferdinand Hukama Taqwa Filli Pratama Gatot Priyanto Hendra Setyawan, Hendra Herman Saputro Herpandi . Herpndi Hidayati, Khusnul Ida Nugroho Saputro Indasari, Dwi Insiroh, Nisa Iwan Sudradjat, Iwan Izzah, Raihanah Nurul Johan, Bangun Panduko Karnilawati Karnilawati Kasman, Tamiya Miftau Saada Kholis, Fuaz Nur Komarudin Komarudin Kurniasari, Putri Madina, Rizki Fitria Mahendra, Agvendo Heksa Mochamad Syaifudin, Mochamad Mohd Shafie Bakar Muhammad Akhyar Muhammad Bahrul Ulum Muliajaya, Fitra Nabila, Urfan Ngatou Rohman Nugroho , Gama Dian Nugroho, Gama Dian Paimin, Aini Nazzura Pambudi, Nugroho Agung Perbawanti P., Nooraini Dewayani Pereira, Sandra H.M.S Prabarani, Irene Roselynda Prihatin, Erika Ayunda Puspa Ayu Pitayati Puspanda Hatta Putra, Rifai Aditya Pratama Putri, Irba' Rizka Rachmawati, Siti Hanggita Ramadhan, Rizki Ikhsan Ramadhani, Arianti Ranto Ranto Ridhowati, Sherly Rinto Rinto Rodiana Nopianti Rosihan Ari Yuana, Rosihan Ari Sabri Sudirman Saputra, Taufik Wisnu Sarjoko Sarjoko, Sarjoko Sasongko, Wisnu Dimas Satriya Nugraha Shanti Dwita Lestari Shelia, Shelia Sihwadi, Sihwadi siti fadilah Sriati Sriati, Sriati Suharno Suharno Sumpeno Putro Suparyati, Atik SUSI LESTARI Syadidan, Alfian Qoulan Towip, Towip Ulinnuha, Dwi Kusuma Valiant Lukad Perdana Sutrisno, Valiant Lukad Perdana W, Nadia Eka Wahyudi, Fatah Ari Sri Wahyudi, Muhamad Nur Azmi Wardhana, Raksi Pandu Wibowo, Yusuf Bagas Wicaksono, Andrye Sukma Wicaksono, Muchlis Taufiq Anjar Widyasmoro, Irvan Bayu Widyawati, Linda Wonorahardjo, Surjamanto Yunindyawati Yunindyawati Yuyun Estriyanto Zulfahmi, Muhammad Tsany Zulkarnain, Candra