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All Journal Jurnal Ilmiah Pertanian Stannum : Jurnal Sains dan Terapan Kimia Journal of Bioprocess Chemical and Environmental Engineering Science
Al'farisi, Cory Dian
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Efektivitas Adsorpsi Logam Berat (Fe2+) Menggunakan Arang Aktif Batang Bambu (Bambusoideae) Teraktivasi NaOH Al'farisi, Cory Dian; Irianty, Rozanna Sri; Damanik, Gery Andreas; Herman, Syamsu
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 2 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.2.60-68

Abstract

The environmental pollution that was the center of attention was industrial wasted. Adsorption had been shown to been a more effective method for absorbing heavy metals from wastewater. Adsorption is the absorption of a substance on the surface of another substance. The adsorbent commonly used in adsorption is activated charcoal. Yellow bamboo is a material that could produced charcoal by carbonization. The research aimed to make adsorbents from bamboo, to characterize activated charcoal according to SNI 06-3730-1995. Bamboo stem activated charcoal capacity and calculated the effectiveness of charcoal adsorbents. Bamboo stems actively absorb iron ions (Fe2+). Variations in this process was particle sizes of 40+ 60-, 60+ 80- and 80+ 100- mesh and column diameter sizes of 2, 3 and 4 cm. The analysis results for the characteristics of the activated charcoal complied with SNI provisions, showing a moisture content of 4%, an ash content of 8%, and an iodine adsorption capacity of 1002.45 mg/g.. The best results in this research were the adsorption process at varying particle sizes of 80+ 100- mesh with a column diameter of 2 cm with an adsorption capacity value of 0.896 mg/g and an effectiveness of 90.48%. Variations in column diameter and particle size used affect the adsorption capacity and effectiveness of the adsorption process.
Physicochemical characterization of coconut shell liquid smoke and its potential as a natural preservative for fish balls Mutamima, Anisa; Sunarno, Sunarno; Al'farisi, Cory Dian; Dewi, Wahyu Narulita; Trisno, Agung; Barus, Surya Danta Alberto
Jurnal Ilmiah Pertanian Vol. 22 No. 1 (2025): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v22i1.23850

Abstract

Synthetic preservatives in food products pose potential health risks and environmental concerns, leading to an increasing demand for natural alternatives. This study evaluates the physicochemical properties of liquid smoke derived from coconut shells and its potential as a natural preservative for fish balls. The production of liquid smoke involved torrefaction at 250°C, followed by purification through distillation and adsorption with activated carbon. The liquid smoke was characterized by a pH of 2.86, a density of 1.058 g/mL, and a total titratable acidity of 8.95%, meeting the Indonesian National Standard for Crude Lignocellulose Liquid Smoke (SNI 8985:2021). GC-MS analysis revealed that acetic acid (80.87%) and phenol (8.90%) were the predominant compounds, contributing to its antimicrobial properties. The efficacy of liquid smoke as a preservative was tested on fish balls at concentrations of 3%, 5%, and 7%. The best preservation effect was observed at 7% concentration, which resulted in the lowest total plate count (2.35 × 10⁶ CFU/g) after one day of storage at room temperature. These findings suggest that coconut shell-derived liquid smoke exhibits promising physicochemical characteristics and antimicrobial properties, making it a potential natural alternative to synthetic preservatives for food preservation.
Pembuatan Pektin Dari Wortel dan Pemanfaatannya dalam Formulasi Pasta Gigi Al'farisi, Cory Dian; Mutamima, Anisa; Drastinawati, Drastinawati; Yelmida, Yelmida; Siahaan, Daniel Andica; Az Zahra, Alya
Stannum : Jurnal Sains dan Terapan Kimia Vol 7 No 1 (2025): April 2025
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v7i1.5053

Abstract

Pectin, a complex polysaccharide derivative, is abundantly found in various fruits and vegetables. Due to its gel-forming ability, pectin plays a crucial role in the production of diverse food products, including jam, jelly, fruit preparations for yogurt, fruit juice, and others. The primary aim of this research was to ascertain the yield and extract the pectin content from carrots and investigate the impact of incorporating different concentrations of pectin into toothpaste formulations, comparing them against the SNI 12-3524-1995 standard. In this study, concentrations of pectin in toothpaste formulations were varied at 2.5%, 3%, 3.5%, and 4%. Pectin characteristics, encompassing yield, moisture content, equivalent weight, and methoxyl content, were examined, alongside assessments of toothpaste formulation characteristics, including organoleptic evaluation, pH testing, and spreadability testing. The research findings revealed that 13 grams of dried carrot powder yielded 1.17 grams of pectin, resulting in a 9% yield, 6.7% moisture content, an equivalent weight of 717 g/gmol, and a methoxyl content of 9.3%. Toothpaste testing indicated pH values of 7.63, 7.7, 7.26, and 7.06 for concentrations of 2.5%, 3%, 3.5%, and 4%, respectively. Organoleptic evaluations for each concentration revealed a thick texture, light brown and brown color, and mint and mild mint aromas. Spreadability test results for concentrations of 2.5%, 3%, 3.5%, and 4% were 3.1 cm, 3 cm, 2.8 cm, and 2.8 cm, respectively. While increasing the concentration of carrot pectin did not significantly impact the pH, color, aroma, and texture of the toothpaste formulation, it led to a decrease in spreadability.
Pembuatan Minyak Atsiri dari Komoditas Alam Daun Kayu Putih Al'farisi, Cory Dian; Zahrina, Ida; Drastinawati, Drastinawati; Khairat, Khairat; Herman, Syamsu; Utami, Anggia Afza; Alfajar, Fariz
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 5 No 1 (2024): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.5.1.29-35

Abstract

Eucalyptus oil is one of the essential oil obtained from the extraction of eucalyptus leaves. The purpose of this study is to evaluate the effect of variations in sample treatment and extraction time on the yield of eucalyptus essential oil and determine the characteristics of eucalyptus essential oil produced by the hydro distillation method. Variations in sample treatment were carried out by chopping, crushing, and blending dry eucalyptus leaves. 500 grams eucalyptus leaves are weighed and put in a 2000 mL flask. ±1000 mL of distilled water was added and the extraction process was carried out for 5, 6 and 7 hours. The results showed that the highest yield was obtained from blending treatment with an extraction time of 7 hours with a yield of 0.58%. Characteristic tests on eucalyptus leaf essential oil included: color, odor, specific gravity, refractive index and solubility in ethanol 80%. From the analysis of the test results, the color of eucalyptus oil is cloudy. The odor test results obtained are the distinctive odor of eucalyptus. The best value of eucalyptus oil specific gravity was 0.913 on crushed leaves for 6 hours. In the ethanol solubility test, the resulting oil dissolves in ethanol and a clear solution is obtained. The highest refractive index value of eucalyptus oil on chopped leaves for 5 hours is 1.469. Eucalyptus oil has a quality in accordance with the quality requirements of SNI 3954: 2014.
Kapasitas Adsorpsi dan Efektivitas Karbon Aktif Pelepah Kelapa Sawit (Elaeis guineensis Jacq.) untuk Mengadsorpsi Ion Logam Tembaga (Cu2+) Nurfatihayati, Nurfatihayati; Irianty, Rozanna Sri; Winarno, Winarno; Yani, Oktavia Dewa; Al'farisi, Cory Dian
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 1 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.1.51-61

Abstract

Palm fronds waste have a carbon content of 81.25%, which is quite high, making them suitable for use as activated carbon adsorbents that are beneficial for anticipating or minimizing the occurrence of Cu2+ ion pollution in the environment. This research aims to analyze the effect of contact time and mass of palm fronds activated carbon adsorbent on the adsorption of Cu2+ ions, the adsorption capacity of the palm fronds activated carbon adsorbent, and the effectiveness of the palm fronds activated carbon adsorbent in adsorbing Cu2+ ions. The research stages began with preparing palm frond samples with a size of (-80/+100) mesh, which was then activated with H3PO4 and 3M HCl for 24 hours. Based on the results, the best adsorbent characteristics used H3PO4 as the activator. The adsorption process was carried out with mass variations (10, 15, 20) g, contact times of (30, 60, 90, 120) minutes with a stirring speed of 90 rpm, and an adsorbate concentration of copper ions (Cu2+) of 10 mg/L. The optimal adsorption capacity obtained with the H3PO4 activator was at a contact time of 90 minutes with an adsorbent mass of 10 g, amounting to 0.965 mg/g. The highest adsorption effectiveness was found at a contact time of 90 minutes with an adsorbent amount of 20 g of palm frond activated carbon, which was 99.76%.
Sintesis Nitroselulosa dari Serat Daun Nanas sebagai Sumber α-Selulosa untuk Bahan Baku Pembuatan Propelan Al'farisi, Cory Dian; Padil, Padil; Yelmida A.; Nurfatihayati, Nurfatihayati
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 2 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.2.72-82

Abstract

Nitrocellulose is an important compound in the chemical industry, which has various crucial applications, such as the main ingredient for making quality paint, ink, and coating formulations in the printing process, as well as a propellant (explosive). Nitrocellulose as a raw propellant material is currently very popular. In this research, pineapple leaf waste has been processed as a raw material for making nitrocellulose through a nitration process. The research aims to determine the effect of the nitration process's length and the nitrating acid's composition on nitrocellulose's nitrogen content. Before the nitration process, an initial process is carried out, namely pre-treatment of pineapple fiber to obtain fiber with a cellulose purity of >92%. In the nitration process, the ratio of titrating acid (H₂SO₄:HNO₃) used is 1:3, 1:2, 2:1, 7:3, and 3:1 with a nitration time of 30, 60, 90, and 120 minutes. The results obtained in this research were that the pre-treatment process was able to increase the purity of cellulose in pineapple fiber by up to 93%. Then the 2:1 titrating acid formulation (H₂SO₄:HNO₃) is the best acid ratio formulation. Meanwhile, the optimum time for nitration is 60 minutes, with a nitrogen content in nitrocellulose of 12.73%. Fourier Transform Infrared (FTIR) analysis shows that there has been an exchange of hydroxyl groups in nitrocellulose with nitro groups, which is indicated by the presence of a peak indicating the nitro group. Apart from that, the burning test also showed that nitrocellulose can be burned faster than cellulose
Co-Authors ', Padil Alfajar, Fariz Az Zahra, Alya Barus, Surya Danta Alberto Damanik, Gery Andreas Dewi, Wahyu Narulita Drastinawati Drastinawati, Drastinawati Ida Zahrina Khairat, Khairat Mutamima, Anisa Nurfatihayati Rozanna Sri Irianty Siahaan, Daniel Andica Sunarno Sunarno Syamsu Herman Trisno, Agung Utami, Anggia Afza Winarno Winarno Yani, Oktavia Dewa Yelmida Azis