Muhammad Hazmi, Reni Puji Rahayu, Didik Puji Restanto, Fiana Fodesta, Hidayah Murtiyaningsih

Studi Potensi Bioetanol Umbi Ganyong Melalui Dua Jenis Ragi Dan Lama Fermentasi

Introduction

Studi potensi bioetanol umbi ganyong melalui dua jenis ragi dan lama fermentasi. Teliti potensi bioetanol dari umbi ganyong melalui fermentasi menggunakan ragi tapai & roti serta berbagai lama fermentasi. Optimalkan produksi bioetanol sebagai sumber bioenergi.

Abstract

Penggalian sumber bioenergi dari bahan tanaman menjadi penting untuk mengantisipasi penurunan produksi energi fosil. Umbi Ganyong memiliki kandungan karbohidrat cukup tinggi, sehingga potensial digunakan sebagai bahan sumber bioetanol melaui proses fermentasi. Penelitian awal ini bertujuan untuk mengetahui prospek potensi bioetanol umbi ganyong. Penelitian ini adalah penelitian eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan dua perlakuan, yaitu: jenis ragi dan lama fermentasi. Jenis ragi yang digunakan, yaitu ragi tapai (R1) dan ragi roti (R2). Lama fermentasi ada enam aras, yaitu: 5 hari (G1), 10 hari (G2), 15 hari (G3), 20 hari (G4), 25 hari (G5), dan 30 hari (G6). Perlakuan disusun secara faktorial dan diulang tiga kali. Data yang diperoleh dianalilis sidik ragam dengan uji F (ANOVA). Perlakuan yang berbeda nyata diuji lanjut dengan uji Duncan 95% (DMRT). Hasil penelitian menunjukkan bahwa umbi ganyong sangat potensial untuk dijadikan bahan baku pembuatan bioetanol meskipun perlu dilakukan optimasi diberbagai aspek, terutama frekuensi destilasi larutan bioetanol perlu ditingatkan untuk mendapatkan kadar bioetanol yang lebih tinggi dan mempunyai titik bakar.

Review

This preliminary study explores the potential of canna (ganyong) tubers as a feedstock for bioethanol production, a timely and relevant topic given the increasing global demand for renewable energy sources and the dwindling supply of fossil fuels. The authors correctly identify canna tubers as a promising candidate due to their high carbohydrate content, making them suitable for fermentation into bioethanol. The overarching aim to assess this potential is clearly articulated, setting a foundational step for further research in this area of bioenergy development from local agricultural resources. The experimental design is robust and well-described, employing a Completely Randomized Design (CRD) with a 2x6 factorial arrangement, replicated three times. This allows for a comprehensive investigation into the effects of two crucial parameters: yeast type (tape yeast and bread yeast) and fermentation duration (ranging from 5 to 30 days). Such a factorial approach enables the researchers to not only observe individual effects but also potential interactions between the chosen variables. The statistical analysis using ANOVA and subsequent Duncan's Multiple Range Test (DMRT) for significant differences is appropriate for this type of experimental data, ensuring a statistically sound interpretation of the results. The findings indicate that canna tubers indeed possess significant potential for bioethanol production. This positive conclusion provides valuable initial data, supporting the viability of this underutilized resource. However, the authors astutely acknowledge that optimization is necessary across various aspects. The specific mention of increasing distillation frequency to achieve higher ethanol concentrations and better ignition points highlights a critical area for improvement. While the study effectively establishes the basic potential, future work should delve into optimizing these downstream processing steps, perhaps exploring different hydrolysis methods, yeast strains, or more sophisticated distillation techniques to maximize yield and purity, thereby enhancing the practical applicability of canna-derived bioethanol.

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