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ERWAN ADI SAPUTRO
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International Journal of Eco-Innovation in Science and Engineering (IJEISE)
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : -     EISSN : 27218775     DOI : https://doi.org/10.33005/ijeise
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering
International Journal of Eco-Innovation in Science and Engineering (IJEISE) covers all topics of Eco-Innovation in Science and technology related research from Chemical Engineering, Environment Engineering, Civil engineering, Industrial Engineering, Food Technology, Agrotechnology and others science and engineering field. IJEISE publish 2x a year (May and November).
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 104 Documents
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Biopolymer-based Edible Film for Food Packaging Application : Review Matovanni, Maudy Pratiwi Novia; Jannah, Erisa Nur; Utami, Aliyya Nisa Budi; Maritza, Damara Ramadhani; Pertiwi, Beta Cahaya
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v6i2.148

Abstract

Edible films serve as an effective barrier to prevent mass transfer between the product and its environment. This innovation facilitates the development of environmentally sustainable food packaging alternatives that promote the efficient use of natural resources. A variety of biopolymers are utilized in the formulation of edible films, primarily polysaccharides, proteins, and composite materials. Polysaccharides can be further categorized according to their origin, including plant, animal, marine, microbial, and industrial waste sources. Proteins are generally classified into plant- and animal-based categories. Composite films, which combine multiple biopolymer types, offer enhanced structural properties. The application of biopolymer-based edible films presents a promising strategy for mitigating commercial plastic waste accumulation. Nevertheless, the incorporation of additives—such as plasticizers, antioxidants, and antimicrobial agents—is essential to enhance film properties and ensure compliance with quality standards for food packaging application
Integration of Waste Management and Environmental Impact Assessment for Sustainable Manufacturing in Sukolego Tofu Production P.A. Islami, Mega Cattleya; Harnaningrum, Rizky Novera
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

The tofu production process, particularly in small- to medium-scale industries like Sukolego Tofu Production, generates various types of waste that pose environmental challenges. This study aims to integrate waste management practices and environmental impact analysis within a sustainable manufacturing framework. This study uses a quantitative method with a causal associative approach to measure Waste Management (X1), Environmental Impact Assessment (X2), and Sustainable Manufacturing (Y). Data was collected through questionnaires distributed to 50 people living around the Sukolego Tofu Factory.  Data that meets the validity, reliability, and classical assumption tests is processed to produce a linear regression equation. The analysis results indicate that the Environmental Impact Assessment (EIA) variable has a positive and significant effect on Sustainable Manufacturing, both partially and simultaneously. However, the Waste Management variable does not exhibit a significant effect. This is supported by the significance (Sig.) values, where the EIA variable yields a value of 0.004 (p < 0.05), indicating statistical significance, whereas the Waste Management variable yields a value of 0.702, which is not statistically significant.
Effect of Blower Power and Engine Speed Variations on Engine Component Temperatures Fueled by B40 and Off-Grade CPO Maulana, Ivan; Saputro, Wilianadi; Saputro, Erwan
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

This study examines the effect of blower power variation and engine speed on the temperature of diesel engine components fueled by B40 and off-grade Crude Palm Oil (CPO). The experiment was conducted using a Kubota RD 65 DI-NB diesel engine with a constant electrical load of 4 kW at two engine speeds: 1200 and 2000 RPM. The off-grade CPO was preheated to 100°C, while B40 was used without any special treatment. The blower air supply was varied from 0% to 100% to evaluate its impact on the engine’s thermal behavior. The results indicate that increasing blower power up to 100% causes a rise in temperature in the cylinder head, cylinder block, exhaust pipe, and coolant tank, whereas a decrease in temperature is observed in the intake pipe. Under all engine speed conditions, engines fueled with off-grade CPO showed higher average temperatures compared to those using B40, with increases of 4.81% in the cylinder head, 8.47% in the cylinder block, 10.16% in the intake pipe, 6.86% in the exhaust pipe, and 5.81% in the coolant tank. These temperature increases are attributed to the higher oxygen content and viscosity of off-grade CPO, which lead to larger fuel droplets and incomplete combustion, thereby increasing deposit formation. These findings highlight the significant influence of fuel characteristics and air supply on the thermal performance of diesel engines.
Optimization of Solar Energy for Control Systems and Electrical Grid Projections at Substations Permatasari, Ayunda Wulan; Fauziyah, Nur Aini; Moch.Syaifuddin; Tanjung, Riadhi Fairuz
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

This research examines the utilization of solar panels as an effort to optimize solar energy in the control systems and projections of the electrical grid at substations to support the transition to renewable energy in Indonesia. Dependence on fossil fuels, which causes high carbon emissions, and Indonesia's commitment to the Paris Agreement are the main backgrounds for this innovation. The system is designed using two 12 V solar cells connected in series to produce a 24 Vdc output, and is equipped with an automatic switching mechanism between the supply from the solar panels and National Power Plant (PLN). Observations over the course of one month showed an increase in current from 0.78 A to 1.55 A and power from 18.3 W to 38.2 W, indicating an improvement in energy conversion efficiency. However, the storage capacity significantly decreased from 35.56 Ah to 7.78 Ah, due to shorter charging durations and fluctuations in ambient temperature. This system has the potential to reduce dependence on fossil fuels, support sustainable electrification, and provide environmentally friendly electricity distribution solutions in areas not yet reached by conventional networks. Further development is needed in the energy storage aspect to enhance the overall performance of the system.
Tailoring the Adsorptive Efficiency and Pore Characteristics of Silica through Solvothermal Treatment Assisted by Cetyltrimethylammonium Bromide (CTAB) Timu, Fransiska Altrima Key; Rahman, Nanik Astuti
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

Silica is a porous material widely utilized across various fields. One of the potential sources of silica is sandblasting waste, which contains more than 90% silica. This study aims to investigate the influence of Cetyl Trimethyl Ammonium Bromide (CTAB) concentration and solvothermal duration on producing silica with enhanced adsorption capacity and porosity. The independent variables in this research include CTAB surfactant concentrations of 0.1, 0.2, 0.3, 0.4, and 0.5%, as well as solvothermal processing times of 8, 10, 12, 14, and 16 hours. The optimal result was obtained with the addition of 0.5% CTAB and a solvothermal duration of 16 hours, in which SEM-EDX analysis revealed large visible pores formed by aggregates of fine particles arranged in a homogeneous structure. The adsorption capacity, using a methylene blue concentration of 30 mg, was found to be 27.1822 mg/g. Based on the study on the Enhancement of Adsorption Capacity and Porosity of Silica Using Cetyl Trimethyl Ammonium Bromide (CTAB) via the Solvothermal Method, it can be concluded that both adsorption capacity and porosity are influenced by the addition of CTAB, solvothermal duration, and the concentration of methylene blue used in the adsorption capacity test.
Characteristics of Synbiotic Drink from Jicama (Pachyrhizus erosus L.) Tubers and Sunflower (Helianthus annuus L.) Seeds Extract Winarti, Sri; Jariyah; Yusuf, Aulia Islamiati; Arum, Ardilini Destyaning
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

Synbiotic drinks are fermented beverages composed of ingredients that encompass prebiotics and probiotic bacteria. A study was conducted to develop a synbiotic drink using Jicama tubers extract and sunflower seeds extract along with the probiotic bacteria including Lactobacillus casei FNCC-0090, Lactobacillus acidophilus FNCC-0051, Bifidobacterium breve BRL-131, and Bifidobacterium bifidum BRL-130. The objective of this research was to assess the impact of varying proportions of Jicama tubers extract (Jc) and Sunflower seeds extract (Sf), as well as fermentation duration on the characteristics of synbiotic drinks. The experimental design employed a factorial completely randomized design with two factors: the proportions of Jicama and sunflower seed extract (75:25, 50:50, and 25:75) and fermentation time (8, 12, 16, and 20 h). Data from the study were analyzed using ANOVA (P<0.05), and significant differences between treatments were assessed by DMRT. The optimal treatment was determined at the 50:50 proportion of Jicama and sunflower seed extract, with an 20 h fermentation time, yielding a synbiotic drink characterized by total LAB of 11.34 log CFU/mL, total lactic acid of 1.29%, N-amino of 4.67 %, antioxidant activity of 33.5%, viscosity of 37.08 cP, inulin content of 1.03%, and vitamin E content of 0.58%.
Effect of Air Velocity on Temperature Distribution in B40 and B100 Oil Burners Rizqullah, Andre Rifqi; Saputro, Wiliandi; Saputro, Erwan
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

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Abstract

Dependence on fossil fuels has encouraged Indonesia to develop biodiesel, in line with the mandatory B40 policy. This study examines the effect of air velocity variations on the combustion performance of B40 (40% palm biodiesel and 60% diesel) and B100 (100% palm biodiesel) fuels. Experiments were conducted using an oil burner with air velocities of 20, 35, 45, 50, and 55 m/s. The flame temperature distribution was measured at distances of 150 mm, 300 mm, 450 mm, 600 mm, 750 mm, and 900 mm from the burner nozzle using a K-type thermocouple. The results showed that the flame temperature increased with air velocity, peaked at 45 m/s, and decreased at higher velocities. The B100 fuel produced a higher flame temperature than B40, with a maximum temperature of 1052°C. The decrease in temperature above 45 m/s is due to the cooling effect of the stronger airflow, which reduces combustion efficiency. The flame temperature also tends to decrease as the distance from the burner nozzle increases, reflecting the influence of turbulence and natural cooling on heat distribution. This study highlights the importance of controlling air velocity and measurement distance to optimize flame temperature and combustion efficiency in burner systems.
Sediment Characteristics and Impacts at Tugu Dam, Trenggalek, East Java Fajar Fadillah; Minarni Nur Trilita; Novie Handajani
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 7 No. 01 (2026): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v7i01.183

Abstract

Dam infrastructure plays a crucial role in the development and management of water resources. The Tugu Dam was constructed in 2014 and completed in 2021. High erosion rates in the Tugu Dam watershed area are a primary factor contributing to sedimentation within the reservoir. It is inevitable that river inflows carry sediment loads into the dam, which subsequently settle and cause reservoir siltation. This sedimentation-induced reduction in storage capacity can significantly impact the operational performance of the Tugu Dam. The objective of this final project is to determine the amount of sedimentation deposited, analyze the sedimentation patterns, and learn how to perform sediment modeling using the HEC-RAS application. This study employs HEC-RAS version 6.0, a software developed by the US Army Corps of Engineers, widely used for hydrologic analyses including river flow, flood modeling, dam breach simulations, and sediment transport analysis. The data utilized are secondary data obtained from the Brantas River Basin Organization (BBWS Brantas). Based on the calculations and analyses conducted in this study, sediment transport modeling requires three primary data inputs: geometric data, hydrologic data, and sediment data. The modeling results indicate a decrease in dead storage capacity from an initial 1,040,000 m³ to 832,516.85 m³ over a 33-year period, representing a reduction of 19.95%. Additionally, the effective storage capacity slightly decreased from 8,667,000 m³ to 8,666,000.01 m³, corresponding to a minimal reduction of approximately 0.0115%. The sediment deposition pattern identified in the Tugu Dam reservoir through HEC-RAS modeling is uniform, with a total sediment accumulation volume of 207,483.14 m³.
Extraction and Characterization of Crude Arabinoxylan from Breadfruit (Artocarpus altilis) Mokhammad Khoiron Ferdiansyah; Daffa Rossi Ifanka; Sari Suhendriani; Tinta Fera; Arief Rakhman Affandi; Rini Umiyati; Iffah Muflihati
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 7 No. 01 (2026): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v7i01.187

Abstract

Arabinoxylan is a dietary fiber belonging to the non-starch polysaccharide family and is known for its health-promoting properties, such as antioxidant and immunomodulatory effects. However, the extraction efficiency and structural integrity of arabinoxylan are strongly influenced by processing conditions, particularly temperature. Breadfruit (Artocarpus altilis) is a potential local source of arabinoxylan, containing up to 2.49% fiber, yet its extraction characteristics have not been widely investigated. Therefore, this study aimed to determine the effect of different extraction temperatures on the characteristics of crude arabinoxylan extracted from breadfruit using water as the solvent. A completely randomized design with one factor, extraction temperature (40°C, 45°C, and 50°C), was used with a 24-hour extraction period. The crude arabinoxylan obtained was characterized for yield, moisture content, ash content, starch content, and monosaccharide profile using HPLC. The results showed that extraction temperature significantly affected the physicochemical characteristics of crude arabinoxylan. The highest yield (4.1%) was obtained at 50°C, while the lowest starch and ash content occurred at 45°C. HPLC analysis revealed that arabinose was present in all treatments, whereas xylose was not detected; the highest arabinose concentration (1.04%) was found at 40°C. These findings indicate that lower extraction temperatures better preserve arabinose content, while higher temperatures enhance yield, suggesting that extraction temperature plays a crucial role in optimizing both purity and quantity of arabinoxylan from breadfruit.
Recovery of Manganese Dioxide (MnO₂) from Dry Cell Battery Waste via Microwave-Assisted Hydrometallurgy: A Mass Balance Study Muhandis Akbar Winaji; Muchammad Fahrizal Hanif; Nurten Sahan; Ardika Nurmawati; Ely Kurniati; Caecilia Pujiastuti
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 7 No. 01 (2026): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v7i01.201

Abstract

The increasing accumulation of dry cell battery waste necessitates efficient recovery methods for valuable materials like manganese dioxide (MnO₂). This study investigates the mass balance and recovery efficiency of MnO₂ from dry cell battery waste using a microwave-assisted hydrometallurgical process. The procedure consisted of three primary stages: material preparation, microwave-assisted acid leaching, and oxidative precipitation. Leaching was conducted using 100 mL of 1.2 M H₂SO₄ and 2% H₂O₂ at 80°C for 50 minutes, achieving an MnO₂ leaching recovery yield of 96.76% by converting manganese and zinc into soluble manganese sulpahte (MnSO₄) and zinc sulphate (ZnSO₄). Subsequent oxidative precipitation utilizing 0.25 M potassium permanganate (KMnO₄) successfully converted dissolved Mn²⁺ into solid MnO₂ with purity 96.57%, while zinc remained in the filtrate as soluble salts. The comprehensive mass balance analysis across all stages demonstrated minimal material loss, confirming the high efficiency and selectivity of the process toward manganese recovery. These findings indicate that integrating microwave-assisted hydrometallurgy with oxidative precipitation is an effective and sustainable approach for recovering high-purity MnO₂ from dry cell battery waste.

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