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All Journal The Journal of Pure and Applied Chemistry Research Jurnal Kimia Mulawarman Indonesia Chimica Acta Jurnal Wiyata : Penelitian Sains dan Kesehatan Jurnal Kreativitas PKM Journal Syifa Sciences and Clinical Research (JSSCR) Indonesian Journal of Pharmaceutical Education PRIMER: Jurnal Ilmiah Multidisiplin Primary Journal of Multidisciplinary Research
Riska Yudhistia Asworo
Poltekkes Kemenkes Malang
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Cegah Bahaya Formalin: Identifikasi dan Sosialisasi pada Jajanan CFD Kota Malang Wattiheluw, Muhammad Hasan; Widayanti, Elok; Asworo, Riska Yudhistia
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 8, No 11 (2025): Volume 8 No 11 (2025)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v8i11.22762

Abstract

ABSTRAK Car Free Day (CFD) Malang adalah kegiatan rutin yang menghadirkan banyak masyarakat dengan berbagai jajanan kaki lima yang berpotensi mengandung bahan berbahaya seperti formalin. Formalin adalah bahan kimia toksik yang biasa disalahgunakan sebagai pengawet makanan secara ilegal, berisiko menyebabkan gangguan kesehatan akut hingga kanker jika terpapar jangka panjang. Studi ini bertujuan meningkatkan kesadaran masyarakat dan mengidentifikasi keberadaan formalin pada jajanan CFD Malang melalui pengabdian masyarakat yang dibagi menjadi dua tahap: pengujian sampel makanan dengan rapid test kit dan sosialisasi bahaya formalin. Sampel diambil secara acak dari jajanan yang dijual di lokasi, dan responden pengunjung mengikuti evaluasi pengetahuan terkait formalin. Hasil pengujian pada 11 sampel menunjukkan 8 diantaranya positif mengandung formalin. Evaluasi pengetahuan dari 20 responden menunjukan skor rata-rata 3,85 dari maksimal 6, dengan sekitar 60-72,5% responden mengetahui pengertian formalin, bahayanya, dan cara mengenalinya. Sosialisasi dilakukan dengan leaflet dan demonstrasi sederhana. Studi ini mengonfirmasi masih tingginya prevalensi pemakaian formalin pada jajanan CFD serta kesenjangan pengetahuan masyarakat terkait risiko formalin. Diperlukan upaya edukasi dan pengawasan berkelanjutan dengan melibatkan pemerintah dan komunitas agar kesehatan konsumen terlindungi dan jajanan di lokasi acara lebih aman. Program deteksi dan sosialisasi ini efektif untuk meningkatkan kesadaran serta mendukung pengendalian pangan berformalin secara lebih luas. Kata Kunci: Formalin, Car Free Day Malang, Jajanan Kaki Lima, Pengabdian Masyarakat, Rapid Test Kit  ABSTRACT Car Free Day (CFD) Malang is a routine event that attracts large numbers of the public and features a variety of street food vendors, some of which potentially contain hazardous substances such as formalin. Formalin is a toxic chemical commonly misused as an illegal food preservative with risks of causing acute health disorders and cancer upon long-term exposure. This study aims to raise public awareness and identify the presence of formalin in street foods sold at CFD Malang through a community service program divided into two phases: food sample testing using rapid test kits and dissemination of information regarding the dangers of formalin. Samples were randomly collected from foods sold at the venue, and visitors participated in evaluating their knowledge about formalin. Test results from 11 samples revealed that 8 were positive for formalin. Knowledge evaluation among 20 respondents showed an average score of 3.85 out of 6, with approximately 60–72.5% of respondents understanding the definition, hazards, and recognition methods of formalin. Dissemination efforts utilized leaflets and simple demonstrations. The study confirms the high prevalence of formalin use in CFD street foods alongside a knowledge gap in the community regarding associated risks. Continuous educational initiatives and supervision involving governmental and community stakeholders are necessary to protect consumer health and ensure safer food offerings at the event. This detection and dissemination program effectively enhances awareness and supports broader efforts to control formalin-contaminated foods. Keywords: Formalin, Car Free Day Malang, Street Food Vendors, Community Service, Rapid Test Kit
The Effect of Contact Time of Javabark Adsorbent (Lannea coromandelica ( houtt.)merr) on Cd (II) Adsorption Capacity Musrifah, Linda Ayu; Widwiastuti, Hanandayu; Asworo, Riska Yudhistia
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 18, No 2: December 2025
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/ica.v18i2.46432

Abstract

According to Indonesian Minister of Health Regulation No. 2 of 2023, the maximum limit for cadmium in bottled water is 0.003 mg/L. In this study, tannin biosorbents were used from the extraction of Javanese bark. Javanese bark contains tannin compounds that have the potential to bind heavy metals. This study aims to determine the effect of varying contact times of Java wood bark biosorbent on the adsorption capacity of Cd (II). The method used is an experiment to study the effect of contact time of Java wood bark biosorbent on the adsorbate. The contact times used for the Java wood bark biosorbent were 20, 40, 60, 80, 100, 120, 140, and 160 minutes. The residual Cd (II) concentration in the solution was determined using a UV-Vis spectrophotometer. The adsorption capacity of Cd (II) at contact times of 20, 40, 60, 80, 100, 120, 140, and 160 minutes was 0.073; 0.075; 0.078; 0.079; 0.116; 0.060, 0.052; 0.035 mg/g. From the results of the study, it can be concluded that the longer the contact time of the biosorbent in the adsorption of Cd (II) metal, the adsorption capacity will increase until it reaches the optimal contact time. After reaching the optimal contact time, adsorption decreases due to the desorption process. In this study, the optimal contact time for Java wood bark biosorbent was obtained at 100 minutes with an adsorption capacity of 0.116 mg/g. Keywords:Tannin;Cadmium;Adsorption;Biosorbent;Javabark;
Co-Authors Abdullah Arief Agatha Abriyanti Dewi Akhmad Sabarudin Ayu, Berliana Mustika Elok Widayanti Hanandayu Widwiastuti Hanandayu Widwiastuti Jauhar Fatin Muna Lauren, Angelita Rajinia Liffany, Shelsabila Dhea Musrifah, Linda Ayu Niken Cahyaning Wulandari Rachmat Triandi Tjahjanto Wattiheluw, Muhammad Hasan Widayanti, Elok Yustina Suhandini Tjahjaningsih