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All Journal Sosiohumaniora SALAM: Jurnal Sosial dan Budaya Syar-i COMPETITIVENESS JOURNAL Jurnal Sains dan Teknologi Pangan Jurnal EMT KITA Jurnal Bina Praja Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Akademika Kimia BIOEDUSCIENCE Pendas : Jurnah Ilmiah Pendidikan Dasar Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Review Pendidikan dan Pengajaran (JRPP) Diagnosis: Jurnal Ilmiah Kesehatan Journal of Governance and Local Politics (JGLP) Al-Minhaj Jurnal Pengabdian kepada Masyarakat Nusantara Mattawang: Jurnal Pengabdian Masyarakat Jurnal Nuansa Akademik: Jurnal Pembangunan Masyarakat Jurnal Riset dan Inovasi Pembelajaran International Journal of Social Service and Research Media Eksakta Journal of Education Research Jurnal Akademika Kimia Jurnal Sylva Lestari Kande : Jurnal Ilmiah Pendidikan Bahasa dan Sastra Indonesia Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Jurnal Banua Oge Tadulako IPTEK: Jurnal Hasil Pengabdian kepada Masyarakat Jurnal Administrasi Pendidikan Indonesia Journal of Educational Management Research Mining Science and Technology Journal Wahana Bina Pemerintahan Journal of Contemporary Rituals and Traditions JLE: Journal of Literate of English Education Study Program Jurnal Pelita: Jurnal Pembelajaran IPA Terpadu Jurnal Akademika Kimia Jurnal Ekonomi, Manajemen, Akuntansi Health Science & Biomedical Journal (HSBJ) Journal of Islamic Community Development Indonesian Journal on Learning and Advanced Education (IJOLAE)
Sitti Aminah
Program Studi Pendidikan Kimia, Universitas Tadulako, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analysis of Bioaccumulation of Mercury (Hg) in Yuyu Crabs (Parathephusa Convexa) in The Janja River, Malomba Village, Dondo District, Tolitoli Regency Tri Santoso; Hasrudin Hasrudin; Sitti Aminah; Sri H. V. Pulukadang
Jurnal Akademika Kimia Vol. 14 No. 1 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i1.pp8-12

Abstract

The phenomenon of environmental damage due to unlicensed gold mining activities harms aquatic ecosystems. Mercury (Hg) waste from the mining process has the potential to cause bioaccumulation in aquatic biota such as fish and crabs, which can lead to mercury contamination in the human body through the food chain. The bioaccumulation process can also produce toxic organic compounds that harm human health. Therefore, this research aims to determine whether mercury bioaccumulation occurs in yuyu crabs in the Janja River, Malomba Village, Dondo District, Tolitoli Regency, due to gold mining activities. The method used in the research is the calibration curve method with Cold Vapor Atomic Absorption Spectrophotometry (CV-AAS) analysis at a wavelength of 253.7 nm. The results obtained from this research indicate that bioaccumulation has occurred in yuyu crabs that live in the Janja River. The highest accumulated mercury metal levels were obtained at upstream locations with an average of 5.24 ppb; the lowest was in the midstream, which is 1.53 ppb. At the downstream location, it has a mercury concentration of 4.53 ppb. So it shows that the mercury contamination in the yuyu crab samples is below the quality standard threshold, Indonesian National Standard No. 7387 of 2009, for the heavy metal mercury in other types of crabs and crustaceans is 1.0 ppm or 1000 ppb.
Penggunaan Antosianin dari Ekstrak Umbi Ubi Banggai Ungu (Dioscorea Alata L) Varitas Doso sebagai Bioindikator Asam-Basa dan Sumber Belajar Praktikum Mawadda Warahmah; Tri Santoso; Sitti Aminah; Anang Wahid
Journal of Education Research Vol. 7 No. 2 (2026)
Publisher : Perkumpulan Pengelola Jurnal PAUD Indonesia

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

Abstract

Pemanfaatan bahan alam sebagai indikator asam-basa menjadi alternatif ramah lingkungan dalam pembelajaran kimia. Umbi ubi Banggai ungu (Dioscorea alata L.) varietas Doso mengandung antosianin yang sensitif terhadap perubahan pH sehingga berpotensi digunakan sebagai bioindikator alami. Penelitian ini bertujuan untuk menentukan kelayakan ekstrak ubi Banggai ungu sebagai indikator asam-basa dan sumber belajar praktikum kimia. Penelitian dilakukan menggunakan metode eksperimen laboratorium melalui ekstraksi maserasi bertingkat dengan pelarut n-Heksan, etil asetat, dan etanol 70%. Kandungan antosianin dianalisis secara kualitatif dan kuantitatif menggunakan spektrofotometer UV-Vis metode pH diferensial. Ekstrak kemudian diuji pada larutan buffer pH 1–14 dan dikembangkan menjadi kertas tes kit (E-UBU). Hasil penelitian menunjukkan kadar total antosianin sebesar 63,5948 mg/L. Ekstrak menunjukkan perubahan warna merah pada suasana asam, tidak berwarna pada pH netral, dan hijau kebiruan hingga kuning pada suasana basa. Kertas tes kit E-UBU memiliki kestabilan warna hingga 1 bulan. Hasil uji kelayakan memperoleh skor rata-rata 82% dengan kategori sangat layak, sedangkan validasi penuntun praktikum memperoleh skor 87% dengan kategori sangat valid. Dengan demikian, ekstrak ubi Banggai ungu berpotensi sebagai bioindikator asam-basa dan sumber belajar praktikum kimia berbasis kearifan lokal.
Proximate Composition Study of Biscuits from Durian (Durio Zibethinus Murr.) Seed Flour as Food Innovation Andi C. D. Pati; Irwan Said; Purnama Ningsih; Sitti Aminah; Sri Mulyani
Jurnal Akademika Kimia Vol. 14 No. 2 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i2.pp97-102

Abstract

Biscuits are one of the most popular snacks for the public, with the primary raw material being wheat flour. However, the high dependence on wheat flour encourages the need to find alternative ingredients that are more diverse and have high nutritional value. This study aims to analyze the proximate content (carbohydrate, protein, and fat) of biscuits made from durian seed flour (TBD), which is compared with cornstarch (TM) and wheat flour (TT). Proximate analysis methods included UV-Vis spectrophotometry for carbohydrate analysis, the Kjeldahl protein method, and Soxhlet fat extraction. The formulations used consisted of: F1 (100% TBD), F2 (100% TM), F3 (50% TBD:50% TM), and F4 (50% TT:50% TM). The results showed that the highest carbohydrate content was found in F1 at 70.07%, while the highest protein content in F4 at 13.65%. The highest fat content was found in F2 at 21.69%. The best formulation was obtained in F3 (50% TBD:50% TM) because it has a balanced nutritional composition and potential as a functional food product, especially for people with diabetes. In addition, this biscuit product has the potential as a contextual learning medium in food science and nutrition, especially in introducing proximate concepts and utilizing tropical fruit seed waste.
Utilization of Black Tea Dregs as an Adsorbent of Metal Fe in Water using UV-Vis Spectrophotometry sauli safitri; Sitti Aminah; Yuli Nurmayanti; Sitti Rahmawati; Tri Santoso
Jurnal Akademika Kimia Vol. 14 No. 3 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i3.pp187-193

Abstract

Tea dregs are household organic waste materials that can be utilized as low-cost adsorbents for heavy metal removal. Previous studies mainly employed green tea dregs and focused on Cu(II) adsorption, while studies on Fe(III) adsorption using black tea dregs and their direct application to Fe-contaminated water remain limited. This study evaluates the adsorption performance of black tea dregs toward Fe(III) ions and their application in water samples. Batch adsorption experiments were conducted using FeCl₃ solutions at pH 4.8 to determine the optimum contact time (15–90 minutes) and initial concentration (100–300 ppm). Fe(III) concentrations were analyzed using UV–Vis spectrophotometry. The results demonstrated an optimal contact time of 60 min and an optimal concentration, achieving 99.26% adsorption efficiency. Adsorption followed the Langmuir isotherm model with a maximum capacity of 37.04 mg/g (R² = 0.998). Application to well water samples resulted in 83.74% Fe removal, confirming the potential of black tea dregs as adsorbents.
Work Design and Professional Practices of Community Health Cadres in Adapting to Changes in Minimum Service Standards: A Capacity Building Perspective Lindanur Sipatu; Wisra M; Abdul Azis R; Sitti Aminah; Ayu Putri Utami
Journal of Educational Management Research Vol. 5 No. 1 (2026)
Publisher : Al-Qalam Institue

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61987/jemr.v5i1.1704

Abstract

This study aims to explore the understanding and experiences of community health cadres in carrying out public health service tasks amid changes in minimum service standards. This research employed a qualitative approach using a case study design. Data were collected through in-depth interviews with 19 informants and analyzed using the Interactive Analysis Model supported by NVivo 12 Plus for Windows. The findings reveal that health cadres experience excessive workloads due to increasing task demands that must be completed within limited timeframes, while the compensation received remains below expectations. At the same time, cadres are required to meet increasingly complex work standards in line with the development of primary health care policies. These conditions heighten the risk of burnout and negatively affect the quality of services delivered to the community. In addition, cadres’ competencies and communication skills in providing health services have not yet reached an optimal level. The practical implications of this study emphasize the importance of strengthening health cadre professionalism through clear and well-structured work design, supported by capacity building, training, and continuous professional development as key dimensions of educational management to improve service quality sustainably.
Co-Authors A. Nurkidam ABDU RAHMAN BACO, ABDU RAHMAN Abdul Azis R Abdul jalil Abdurrahman Mujahida Afadil ahmad yani Al Hakim, Muhamad Fauzi Alfiani, Putri Nuraura Amalia, Asharia Meysun Ambo Upe Anang Wahid Andhyka Muchtar Andi Badli Rompegading Andi C. D. Pati Arwansyah Arwansyah Arwansyah Ayu Putri Utami Azhari Azhari Azniah Syam Baharuddin Hamzah Bayu Riswanto Besse Herlina Damayanti Darwis Daud Karel Walanda Detris Poba Detti Uleng, Andi Diyah, Rifqatussa Dyah Kusuma Wardani, Dyah Kusuma Dzakiyyah Syarifuddin Evayana Evayana Evi R. Amelia Fatahangi, Andi Fauzi Ahmad Muda Gusti Ayu Arini Hair, Miftahul Hairawati, Hairawati Hajar RMI, Siti Hamzah, Abdul Hardianti Arafah, Eka HARMILAWATI Harmin Adijaya Putri Hasriani Hasriani, Hasriani Hasrudin Hasrudin Hengki Abram, Paulus Hermawati Hidayah, A.Muniratul Hilmi Hambali, Hilmi I Komang Werdhiana Ijirana Ikhsan Ibrahim Irfandi, Rizal Irwan Said Ismail, Imran J, Jusriadi Jamaluddin Jamaluddin Jamaludin M Sakung Jusman Mansyur Lestari, Sri Ayu Lili Saputri Lilies N. Tangge Lindanur Sipatu Magfirah Magfirah Magfirah, Magfirah Mahyuddin Mahyuddin Marwina Marwina Mawadda Warahmah Minarni Rama Jura Mirawati Mirawati Mita Rosita Muchlis Hamdi Muh. Rizal Muhammad Arafah Muhammad Nur Mujahid, Ayinun Murmayani Mustaking, Mustaking Mutia Rahmah Muzakkir nasir, muh Nasrun, Muhammad Syaifuddin Novianti Patiung Nurbaya Nurbaya, Nurbaya Nurcaya Nurcaya Nurdiyanti, Nurdiyanti Nurhijrah Nurhijrah Nusratullah Nusratullah Octaviary, Anggi Chairani Pane, Sri Gustina Paramitha Yemima Boroallo Paulus H. Abram Pratiwi Nova Sari Purnama Ningsih Putri Ramdani Putri, Nur Fisabilianti Rahayu, Putri Rahmah Rahmah Rahman, Lindah Rahmawati, Rahmawati RANGGA ADITYA Ratman Ratna Dewi Ratnawati Ratnawati Reny, Reny Riza, Tauviq Rosmaniar Gailea Ruslan, Muh. Sabaruddin Sabaruddin Sarni Maniar Berliana, Sarni Maniar sauli safitri Setiawan, Topan Shiddiq, Ady Akmal Silvia, Yunita Siti Fatimah Sitti Rahmawati Sri H. V. Pulukadang Sri Hardianti Rosadi Sri Hastuti Virgianti Pulukadang Sri Mulyani Sri Mulyani Sabang Sufia, Sufia Sulfianti, Rizky Ainun Supriadi Supriadi Syamsiar Syamsiar, Syamsiar Syamsu Rijal Tahril Tamrin Tamrin Tri Santoso Tri Santoso Trywulan Syah, Uswah U., Rosmini Ulfayanti, Ulfayanti Wisra M Yanti Oktoviana Yanti, Reski Yessi Febianti Manalu Yuli Nurmayanti Yulvani Toiba Yusran Yusran ZUWANDA, ARI