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All Journal Jurnal Teknik Kimia Jurnal Teknologi Pertanian Briliant: Jurnal Riset dan Konseptual Jurnal Penelitian Pendidikan IPA (JPPIPA) CHEESA: Chemical Engineering Research Articles Journal of Functional Food and Nutraceutical Nusantara Science and Technology Proceedings AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Serambi Engineering
Santi, Sintha Soraya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics

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SINTESIS BIO-OIL DARI BONGGOL JAGUNG MENGGUNAKAN PROSES PIROLISIS Cakradetha, Ivenda Sasquea; Suriyanto, Suriyanto; Santi, Sintha Soraya; Utami, Isni; Sutiyono, Sutiyono
BRILIANT: Jurnal Riset dan Konseptual Vol 10 No 2 (2025): Volume 10 Nomor 2, Mei 2025
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v10i2.2023

Abstract

Bio-Oil is a raw material that can be produced through various methods, one of which is the biomass pyrolysis process. Biomass pyrolysis has been extensively studied and has shown promising potential as an alternative fuel due to its lignocellulose content. In Indonesia, corn production reaches 23.1 million tons, resulting in waste in the form of corn cobs. This study employed the fast pyrolysis method to convert corn cobs into Bio-Oil. The pyrolysis process was conducted in a sealed reactor, externally heated to a temperature of 400°C. The corn cobs used as raw material were first crushed and sieved to achieve a uniform particle size of 20 mesh. Subsequently, the corn cobs were placed into the pyrolysis reactor, with residence times varied at 40, 60, 80, 100, and 120 minutes. Upon completion of the pyrolysis process, the resulting products, consisting of Bio-Oil, charcoal, and pyrolysis gas, were separated and analyzed for Bio-Oil yield, density, viscosity, and calorific value. Chemical composition analysis was performed using Gas Chromatography-Mass Spectrometry (GC-MS) to identify the main compounds present in the Bio-Oil. The highest yield was obtained with a particle size of 20 mesh and a residence time of 120 minutes, resulting in a yield of 72.4632%, a density of 1.3018 kg/m³, a viscosity of 1.6712 mm²/s, and a calorific value of 6.640 Kcal/kg. GC-MS analysis revealed an acetic acid content of 37.49% and a methyl ester content of 22.19%.
Characterization Bio-Based Edible Film from Mango Seed Starch and Semi-Refined Carrageenan (Euchema cottonii) Using Sorbitol Plasticizer for Potential Food Contact Materials Santi, Sintha Soraya; Puspitawati, Ika Nawang; Pasang, Tim
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8601

Abstract

Meanwhile, Semi-Refined Carrageenan (SRC) could be combined with starch as the base material for edible film fabrication to increase its tensile strength. This study aimed to identify edible film by synthesizing SRC and mango seed starch with plasticizer sorbitol, which could be safe for consumption in food packaging. The process of making edible film consists of three steps: extracting Eucheuma cottonii seaweed, making starch from mango seeds, and making edible film. The method used was the solution casting method, with a ratio of SRC: starch of mango seeds, namely 1: 0; 0.7: 0.3; and 0: 1 (w / w) and sorbitol concentrations of 20, 30, 40, 50, and 60% (w/w). This research shows that increasing sorbitol could decrease the tensile strength but increase the elongation and solubility of the edible film. As well as the combination of SRC and mango seed starch can produce edible films with higher characteristics than edible films based only on SRC or mango seed starch. The results of selecting the best conditions for an edible film based on the Japanese Industrial Standard (JIS) are the concentration ratio of SRC: mango seed starch (0.7: 0.3) and 30% sorbitol concentration with a thickness value of 0.22 mm, tensile strength 4.81 MPa, 28.50% elongation and 68.44% solubility
Characterization of Activated Carbon from Sorghum Bagasse Using Double Activation (Chemical Activation and Physical Activation) for Methylene Blue Adsorption Muthiah, Dewi; Milenia, Bella; Santi, Sintha Soraya
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.813

Abstract

This research aims to evaluate the adsorption performance of activated carbon derived from sorghum bagasse through a two-step activation process involving both chemical and physical activation. The sorghum bagasse precursor was first chemically activated using potassium carbonate (K?CO?) as the activating agent, followed by physical activation at 800 °C under an inert atmosphere. The resulting activated carbon was characterized using Scanning Electron Microscopy (SEM) to examine its surface morphology. Adsorption experiments were subsequently conducted employing methylene blue as a model dye at various initial concentrations to determine the adsorption efficiency. The results revealed that the K?CO?-activated sorghum bagasse carbon exhibited excellent adsorption capability, achieving a removal rate of up to 99% for methylene blue. Overall, these findings demonstrate that sorghum bagasse has considerable potential as a sustainable and cost-effective precursor for producing high-quality activated carbon with outstanding dye adsorption performance. Contribution to Sustainable Development Goals (SDGs):SDG 6: Clean Water and SanitationSDG 12: Responsible Consumption and ProductionSDG 13: Climate Action
Synthesis of Ammonium Silicate Liquid Fertilizer from Rice Husk Ash Santi, Sintha Soraya; Pramuji, Faiq Hawaari Ahmad; Juventino, Syahdhan Adiyah Islami; Puspitawati, Ika Nawang
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.822

Abstract

This study aims to synthesise liquid ammonium silicate fertiliser ((NH?)?SiO?) from rice husk ash and to determine the effects of varying ammonium hydroxide (NH?OH) concentration and reaction temperature on the resulting silica (Si) and nitrogen (N) content. Rice husk ash is used as a silica source because it contains high levels of SiO?, up to 82%. The research process includes three main stages: raw material preparation; silica extraction using 10% NaOH at 80°C for 120 minutes; and a synthesis reaction between the extracted silica and an NH?OH solution (5–25%) at 30–110°C for 60 minutes. Silica content analysis was carried out using UV-Vis spectrophotometry, while nitrogen content was analyzed using the Kjeldahl method. The results showed that increasing NH?OH concentration and reaction temperature significantly increased silica content, while increasing temperature tended to decrease nitrogen content due to ammonia volatility. The best conditions were obtained at a NH?OH concentration of 25%, a reaction temperature of 70°C, a silica content of 5.2701%, and a nitrogen content of 17.1637%. The results meet the SNI 02-6681-2002 standard for liquid macro compound fertilizers, which requires a minimum content of 4% for silica and nitrogen. Thus, rice husk ash has great potential as an alternative raw material for the manufacture of environmentally friendly ammonium silicate liquid fertilizers. Contribution to Sustainable Development Goals (SDGs):SDG 2: Zero HungerSDG 9: Industry, Innovation, and InfrastructureSDG 12: Responsible Consumption and ProductionSDG 13: Climate Action
Co-Authors Anjuda, Adli Putra Ariesta Artamevia, Nazwa Azzahra, Tsania Putri Cakradetha, Ivenda Sasquea Chamida, Rida Damayanti, Savira Farizqy Erwan Adi Saputro Febriansyah, Harris Hariyanto, Ayu Puspita Kandhi Hartono, Muhamad Dendy Ika Nawang Puspitawati Irawati , Febriana ISNI UTAMI Juventino, Syahdhan Adiyah Islami Kesuma, Destha A. Khonsa Rezkania, Gita Milenia, Bella Muthiah, Dewi Pangestu, Titan Obby Pasang, Tim Pasang, Timotius Pramuji, Faiq Hawaari Ahmad Prastica, Nita Purwanto Purwanto Putranto, Thomas T. Rahmani, Tara Puri Ducha Rosida Rosida, Rosida - Salfana, Dian Rizka Sri Redjeki SRIE MULJANI Suriyanto Suriyanto, Suriyanto sutiyono sutiyono Trianna, Nurul Widji Winandri, Kautsar Rahman