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Heavy Metal Content of Cadmium in Tilapia from Taliwang Swamp Lake, West Sumbawa Regency Khairuddin, Khairuddin; Yamin, M.; Kusmiyati, Kusmiyati
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.6080

Abstract

Research on the heavy metal Cd in fish is crucial to protect humans as consumers from harmful health impacts. This study aimed to determine the cadmium (Cd) content in tilapia (Oreochromis mossambicus) from Taliwang Swamp Lake (TSL). The specific benefit of this study is to protect consumers who consume fish from Cd contamination. This study was conducted in TSL waters. There are two research stations, one located in the eastern part and the other in the western part of the lake. Data collection was carried out using gill nets. Four tilapia samples were taken at each station. The tilapia samples were then wrapped in plastic bags and stored in sample boxes. The research samples were then analyzed at the West Nusa Tenggara Health, Testing and Calibration Laboratory Center. Data analysis was carried out by taking tilapia muscle tissue and analyzing metal content, especially Cadmium (Cd), using an Atomic Absorption Spectrophotometer. Measurement of heavy metals in tilapia tissue was carried out by adding concentrated HNO3 and HClO4, heated at 60-70ºC for 2-3 hours until the solution became clear. The samples were ready to be measured by AAS using an air-acetylene flame. The conclusion of this study was that the heavy metal content of Cd in tilapia (O. mossambicus) originating from TSL was 0.03 mg/kg (ppm).
Fermentasi Limbah Kotoran Sapi menjadi Pupuk Organik, Solusi Peningkatan Sirkular Ekonomi bagi Peternak Sapi Kusmiyati, Kusmiyati; Sigit Muryanto; Mahmud; Farrikh Alzami; Risky Yuniar Rahmadieni
CARADDE: Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 2 (2025): Desember
Publisher : Ilin Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31960/caradde.v8i2.3097

Abstract

Penyalahgunaan antibiotik di kalangan generasi muda menjadi masalah kesehatan global yang signifikan, yang dapat berujung pada resistensi antibiotik. Pengetahuan yang tepat mengenai penggunaan antibiotik yang bijak sangat penting untuk mencegah fenomena ini. Tujuan: Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pemahaman siswa SMA Pelita 2 Jakarta mengenai penggunaan antibiotik yang tepat dan bahaya resistensi antibiotik. Metode: Kegiatan dilaksanakan dalam satu sesi berdurasi 4 jam, melibatkan 45 siswa,  melalui penyuluhan edukatif yang mencakup penyampaian materi interaktif, demonstrasi laboratorium, dan permainan edukatif. Evaluasi dilakukan  menggunakan pre-test dan post-test, serta formulir penilaian berbasis skala Likert untuk menilai kualitas pelaksanaan kegiatan. Analisis perubahan skor pengetahuan dilakukan menggunakan Uji Wilcoxon Signed-Rank. Hasil: Hasil pre-test dan post-test menunjukkan peningkatan pengetahuan yang signifikan, dengan persentase siswa yang memiliki pengetahuan tinggi meningkat dari 69,77% menjadi 93,00%. Penilaian  skala Likert juga menunjukkan skor tinggi dengan skor rata-rata lebih dari 4 dari 5 pada kategori kejelasan materi, relevansi topik, dan penguasaan materi oleh pemateri . Uji statistik non-parametrik menunjukkan perbedaan skor yang signifikan antara pre-test dan post-test. Kesimpulan: Berdasarkan hasil tersebut, kegiatan edukasi ini terbukti efektif dalam meningkatkan pemahaman siswa mengenai penggunaan antibiotik yang tepat serta risiko  resistensi, sekaligus meningkatkan kesadaran mereka akan pentingnya penggunaan antibiotik yang bijak. Edukasi ini juga berpotensi untuk diadaptasi pada sekolah lain sebagai upaya berkelanjutan dalam pencegahan resistensi antibiotik di tingkat masyarakat
Analisys of Lead content in Tilapia (Oreochromis niloticus) from Taliwang Lake Khairuddin, Khairuddin; Yamin, M.; Kusmiyati, Kusmiyati; Sedijani, Prapti
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.10772

Abstract

Research on heavy metals is important to be done to protect consumers from dangerous impact especially on human beings. The purpose of this study was to determine the Lead (Pb) content in Tilapia (Oreochromis niloticus) taken from Rawa Taliwang Lake. Specifically, the benefit of this study is to protect consumers who consume Tilapia from Lead heavy metal contaminants. Data collection for the tilapia species in this study was carried out in water bodies within the Taliwang Lake area. There were 2 data collection stations, namely on the east and west sides of the lake. Gill nets were used to catch tilapia. Fish samples were caught as many as 4 fish for each station. Next, each fish sample was put into a plastic bag and then stored in a sample box. The fish samples were then analyzed at the West Nusa Tenggara Health, Testing and Calibration Laboratory Center. The data analysis method was carried out by taking muscle tissue from the fish and then analyzing the Pb heavy metal content using an Atomic Absorption Spectrophotometer. The concentration of Lead in fish tissue was measured after adding concentrated Na2SO4 and CuSO4, which were heated at 350ºC for 2-3 hours until the solution was clear. The conclusion of this study is that the heavy metal content of Pb in Tilapia (Oreochromis niloticus) is <0.5 ppm.  
Measurement of Lead content in Channa striata by using Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Khairuddin, Khairuddin; Yamin, M.; Kusmiyati, Kusmiyati; Sedijani, Prapti
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.11081

Abstract

Research on heavy metals Pb is important to be done to protect consumers from dangerous impact, especially on human beings. The purpose of this study was to determine the Lead (Pb) content in Snakehead fish (Channa striata) taken from Rawa Taliwang Lake. Data collection for the Snakehead fish (Channa striata) species in this study was carried out in water bodies of Taliwang Lake area. There were 2 data collection stations, namely on the east and west parts of the lake. Gill nets were used to catch fish. Fish samples were caught as many as 4 fish for each station. The fish samples were then analyzed at the West Nusa Tenggara Health, Testing, and Calibration Laboratory Center. The data analysis method was carried out by taking muscle tissue from the fish and then analyzing the Pb heavy metal content using an Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). Pb found in Snakehead fish in this research is 0,44 ppm. The benefit of this study is to protect consumers who consume Snakehead fish from Lead heavy metal contaminants. The concentration of Lead in fish tissue was measured after adding concentrated 10 ml HNO3 and 2 ml H2O2 30%. The conclusion of this study is that the heavy metal content of Pb in Channa striata is 0.44 ppm.Reaseach on Pb heavy metal sould be continued in order to protect consumers from metal contamination.
Japanese Papaya (Cnidoscolus aconitifolius): An Integrated Biological System with Mechanism-Based Utilization Sedijani, Prapti; Mahrus, Mahrus; Rasmi, Dewa Ayu Citra; Kusmiyati, Kusmiyati; Khaerudin, Khaerudin
Jurnal Biologi Tropis Vol. 25 No. 4a (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4a.11234

Abstract

Cnidoscolus aconitifolius (Japanese papaya or chaya) is a tropical plant from the Euphorbiaceae family known for its high nutritional value and diverse biological activities. Several studies have reported antioxidant, antimicrobial, and other biological properties, suggesting the involvement of complex molecular systems. This article presents a conceptual literature review using a systems biology approach to understand Japanese papaya as an integrated biological system in which nutritional components, secondary metabolites, and enzymatic activities interact. By positioning hydrolytic enzyme systems as the central mechanism, this review discusses the potential utilization of Japanese papaya as a biological resource and as a basis for the development of functional derivative products, including biomolecular hydrolysates. Possible applications in mechanism-based bioconversion processes are also briefly addressed.
Co-Authors A. Wahab Jufri Abda Abda Achmad Zakaria Adini, Syaukia Agil Al Idrus, Agil Al Agus Ramdani Agus Riyanto Agustin, Silvia Wanda Ahmad Raksun, Ahmad Akbar R.H, Muhammad Rizky Alzami, Farrikh Amalia, Hani Amarillis, Widya Puspita Amelia, Desi Dwi Anita Lontaan AR Syachruddin Arfinal, Arfinal Arga Dwi Pambudi Aroli, Siti Nur Khairunisa Astuti, Esti Widya ATY, YOANI MARIA VIANNEY BITA Aty, Yoany Maria V.B. Audy Hijriyah, Adeen Aulyana, Rizca Ayu Mutia, Karina Azis, Farhan Nur Azizurahmah, Annisyah B Widyaningrum Baiq Sri Handayani Balok Hariadi, Balok Benu, Beatrice Amelia Cahya, Raden Roro Theresia Nirbita Cholilah, Cholilah Christina Rosanty Nenotek Dennis Guna Bawana Desyani, Ni Luh Jayanthi diah ayu Dian Imam Saefulah Diyah Kusuma Ningrum Djafar, Nurseha S. Dyah Ratri Nurmaningsih Enni Rosida Sinaga Enny Nurmalasari ERNI SURYANI, ERNI Ety Rahmawati Eva Oktavia Faizin, Afan Fajriyah, Nurul Febriana Febriana, Febriana Femmy Keintjem, Femmy Ferry WF Waangsir Fiko Adiansah Gusti Ayu Tirtawati, Gusti Ayu Handayani, Sri Hanifah, Sri Yuni Hariananda, Dena Arimby Hartayu, Ratna Hartini, Ria Hasan Tholabi Heratri, Agnes Heru Agus Santoso Herwin Suprijono I Wayan Merta I Wayan Merta Merta Imam Bachtiar Imam S, Dian Indhira Shagti INDRIANI, NOVI Intan Meyty Megawati Tongkukut, Intan Meyty Megawati Irfan Irfan Irnawati, Diah Harun Ivan A.M, Laurentius Iyan Nurdiyan Haris Janbonsel Bobaya Jenny Mandang Johana Tuegeh Karundeng, Yanni Khaeran Anwar Khaerudin Khaerudin Khairuddin - Kiling, Maykel Alfian Kontu Lusje, Kontu Kubikazari, Sinju Kukuh Setyadjit, Kukuh Kusdinar, Mochamad Lesmana, Dewo Panca Lestari, Tri Ayu Lilik Muji Hastutik Listianingrum, Nia Yunita Lucia Ratna Kartika Wulan, Lucia Ratna Kartika Lulu, Zinat M. Yamin Maharani, Annisa Metantya Mahrus Mahrus, Mahrus Margono Margono Martha Irene Kartasurya Mawaddah Fatin Nuradiah Memah, Herlina Muchti, Muhammad Agusdika Ridho Muhajir Muhajir, Muhajir Muhammad Amin Muhidayani, RE Septi Muhidayani, Respi Eka Muhtar Muhtar Muliana, Haika Mulyanthi, Dewi Iryani Muqoffi, Ahmad Nera Marinda Machdar Nisa, Alifah Khaerun Noer, Muhammad Zarkasih Norma Tiku Kambuno Normasari, Vivi Novisye Katiandagho, Novisye Nugraha, Yohanes C Nugroho, Dony Satriyo Nur Cholis Majid Nur Hidayati Nur Lestari Nuratni, Ni Ketut Nurhamidah Nurhamidah Nurjannah, Lulu Nurmajid, Iqbal Nurwela, Trivonia Sri Nurwijayanti Oemi Koelsoem Pasambo, Yourisna Peni Cahyati, Peni Pius Selasa PRAPTI SEDIJANI, PRAPTI Purnamasari, Hetty Purnaningsih, Suji Rahayu Purnomo, Muhammad Agus Putu Artayasa Rachmawati, Ifa Ragu Harming Kristina Rahayu, Vaisal Rahmadani, Siti Rama Cipta Prasetia Rasmi, Dewa Ayu Citra Reza Sarwo Widagdo Riska Pradana, Khoirunisa Risky Yuniar Rahmadieni Riyana, Asep Robin Dompas, Robin Rohmah, Ana Qaimah Lailiyatul Mela Diyah Roja Mustaqim Romana, Aben B.Y. S, Moh. Arif Rohman Saefulah, Dian Imam Sahirudin, Sahirudin Sandra Pakaya, Sandra Sari Ayu Wulandari Seftiyani, Ditayara Selasa, Pius Setiadi, Kristoforus Ardian Setiawan, Jefri Anton SIGIT MURYANTO Sigit Muryanto, Sigit Siti Maimunah Siti Nurjanah Siti Zubaidah Soedjajadi Keman Sri Wahyuningtyas, Sri Sudiro Sudiro Sukarso, Aa Sulistiyawati, Wardani Supar . Supriatna, Heri Surono, Arif Surono Susan M Noor Suwarno Suwarno Syuul Adam, Syuul Telly Mamuaya, Telly Tika Astuti Tobing, Jack Robertus Tobing, Viktor Maruli L. Tua Tyas, Wahyuning Ummi Kaltsum S. Saleh Untung Nugroho Utami, Lies Waaangsir, Ferry WF Waangsir, Ferry William Frangky Wanti Wanti WANTI WANTI Wardah, Izzah Aula Wibawa, I Made Ari Wijaya, Dewa Kusuma Yahya, Agung Kurnia Yanyan Bahtiar Yasmin, Ira Yulianto, Ari Gana Yuniar Rahmadieni, Risky Yurissetiowati, Yurissetiowati Zaenal Arifin Zaitun, Nurrifta