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Uji Efektivitas Daya Serap Tanaman Kangkung Air Dalam Menurunkan Kadar Chemical Oxygen Demand (COD) Pada Limbah Cair Pabrik Tahu Ayula Tilango Kabupaten Bone Bolango: Effectiveness Test of Water Spinach Absorption Capacity in Reducing Chemical Oxygen Demand (COD) Levels in Liquid Waste from the Ayula Tilango Tofu Factory in Bone Bolango Regency Siti Faujia Kango; Herlina Jusuf; Ayu Rofia Nurfadillah
Jurnal Kolaboratif Sains Vol. 9 No. 1: Januari 2026
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v9i1.10370

Abstract

Limbah cair yang dihasilkan dari proses pembuatan tahu mengandung bahan organik tinggi yang dapat meningkatkan nilai Chemical Oxygen Demand (COD) sehingga mencemari lingkungan perairan. Salah satu upaya pengolahan limbah secara alami adalah fitoremediasi menggunakan tanaman air. Penelitian ini bertujuan untuk mengetahui efektivitas tanaman kangkung air (Ipomoea aquatica) dalam menurunkan kadar COD pada limbah cair pabrik tahu Ayula Tilango Kabupaten Bone Bolango. Jenis penelitian eksperimen semu (quasi eksperimen) dengan rancangan One Group Pretest–Posttest Design menggunakan variasi jumlah rumpun tanaman sebanyak 10, 15, dan 20 rumpun, masing-masing dengan tiga kali replikasi dan waktu kontak selama 1×24 jam. Parameter yang diamati meliputi suhu, pH, dan kadar COD sebelum serta sesudah perlakuan. Analisis data menggunakan One-Way ANOVA. Hasil penelitian menunjukkan bahwa tanaman kangkung air belum efektif menurunkan kadar COD. Nilai signifikansi uji ANOVA sebesar p = 0,823 (p > 0,05) menunjukkan tidak terdapat perbedaan antarperlakuan. Faktor penyebab antara lain pH limbah yang tinggi (9,42), waktu kontak singkat (1 hari), dan pembusukan tanaman akibat kepadatan biomassa. Kesimpulannya, kangkung air belum mampu menurunkan kadar COD secara signifikan. Disarankan penelitian selanjutnya memperpanjang waktu kontak dan menambah parameter pendukung.
Analysis Of Protein, Fat and Carbohydrate Nutrients in F100-Based Processed Cookies with Corn Flour Substitution for Malnourished Toddlers Shannaz Dea Puspita Lengkong; Sunarto Kadir; Ayu Rofia Nurfadillah
International Journal of Health, Economics, and Social Sciences (IJHESS) Vol. 8 No. 2: April 2026 - In Progress
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v8i2.10518

Abstract

Nutrient intake is an important factor for the growth and development of toddlers, one of the causes of malnutrition in toddlers is a suboptimal feeding pattern. Problem formulation, what is the content of protein, fat, and carbohydrates and how the panelists received based on organoleptic tests on processed F100-based cookies with 10%, 20%, and 30% corn flour substitution for malnourished toddlers. The purpose of the study was to determine the content of protein, fat, and carbohydrates as well as the acceptance of panelists based on organoleptic tests on processed F100-based cookies with 10%, 20% and 30% corn flour substitution for malnourished toddlers. This type of research is quantitative by using laboratory experiments to analyze protein, fat, and carbohydrate levels. The research design used was a 1-factorial Complete Random Design (RAL) with 3 treatments (10%, 20%, and 30%). The research panelists consisted of 20 students of Public Health specializing in nutrition to determine the level of organoleptic acceptance of cookies. Data were analyzed using univariate analysis. The results of the nutrient analysis research obtained protein content of 8.29%, 9.12%, and 9.58% for each treatment, fat content of 10.10%, 11.15%, and 12.25% for each treatment and carbohydrate content of 76.12%, 73.82%, and 71.83% for each treatment. The results of organoleptic tests showed that the entire cookie formulation was well received by the panelists, especially at 30% substitution.In conclusion, the nutritional content of corn flour substitution cookies can be an alternative in meeting the nutritional needs of toddlers per day. The suggestion for the next researcher is to conduct several follow-up tests to determine the content of micronutrients (vitamins and minerals).