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All Journal Eksergi: Chemical Engineering Journal Civil Engineering Journal Indonesian Journal of Chemistry Sewagati
Fadlilatul Taufany
Institut Teknologi Sepuluh Nopember, Surabaya
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Social Sciences Other

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Pengaruh Gliserol sebagai Plasticizer terhadap Karakterisasi Edible Film dari Kappa Karaginan Larasati, Wahyu Adinda; Rahmawati, Yeni; Taufany, Fadlilatul; Susianto, Susianto; Altway, Ali; Nurkhamidah, Siti
Eksergi Vol 21, No 3 (2024)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v21i3.12451

Abstract

Perkembangan industri pengemasan makanan di era mendatang akan beralih ke bahan alami dan ramah lingkungan yang bisa diproduksi dari biopolimer seperti pati dan hidrokoloid lainnya untuk mengurangi paparan polusi dari polimer sintetis. Kappa karaginan memiliki sifat yang rapuh, sehingga dibutuhkan plasticizer untuk menghasilkan edible film yang lebih elastis. Jenis plasticizer yang digunakan adalah gliserol. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh konsentrasi gliserol terhadap karakterisasi edible film dari kappa karaginan. Kappa karaginan dengan konsentrasi 1% (b/v) dilarutkan dengan akuades kemudian ditambahkan gliserol dengan variasi konsentrasi 0,5; 1; 1,5, dan 2% (b/v). Edible film kemudian di karakterisasi berdasarkan sifat mekanik, gugus fungsional, ketebalan, kadar air, kuat tarik, elongasi, warna dan opacity. Hasil analisa menunjukkan bahwa penambahan gliserol sebesar 1% dapat meningkatkan sifat mekaniknya, dan film mempunyai 0,146 mm, kadar air 17,90%, kuat tarik dan elongasi 2,53 MPa dan 14,09% dan sifat optik warna dan opacity masing-masing sebesar 96,96% dan 1,32. 
Peningkatan Kualitas Produksi Gula Merah melalui Pemasakan dengan Food Grade Cooking Pan dan Mekanisasi Scraping serta Pemanfaatan Limbah untuk Fattening Domba Darmawan, Raden; Koswara, Arwi Yudhi; Suryo, Is Bunyamin; Rokana, Efi; Srikalimah; Taufany, Fadlilatul; Zuhdan, Alya Zahrani
Sewagati Vol 8 No 5 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i5.2258

Abstract

Kelompok Tani “Tunas Harapan” terletak di Desa Ngetrep, Kecamatan Mojo, Kabupaten Kediri, Jawa Timur. Mata pencaharian utama masyarakat desa adalah sebagai petani, salah satunya petani tebu. Kelompok Tani “Tunas Harapan” bekerja sama dengan PT. Tiga Dewi Timur Raya sebagai mitra pendamping. Meskipun memiliki potensi pasar yang baik, tantangan yang dihadapi meliputi cemaran logam berat pada gula merah, metode pemisahan busa yang tidak efisien, serta belum optimalnya penerapan SOP higienitas, K3, dan pengelolaan limbah produksi. Tim pengabdian masyarakat mengusulkan solusi berupa desain dan pembuatan alat  food grade cooking pan berkapasitas 2.300 L nira dengan mekanisasi scraping, transfer knowledge berupa workshop, pendampingan penyiapan HACCP, pengolahan limbah tamte menjadi biskuit pakan ternak, dan rebranding produk. Program ini diharapkan dapat mendukung pencapaian Tujuan Pembangunan Berkelanjutan (SDG’s), khususnya pada poin 12 (Konsumsi dan Produksi yang Bertanggung Jawab).
Modelling Urea and Creatinine Concentration Distribution in Hollow Fiber Membranes for Hemodialysis Applications Fauziah, Melinda Nur; Nurkhamidah, Siti; Taufany, Fadlilatul; Altway, Ali; Susianto; Rahmawati, Yeni
Eksergi Vol 22 No 2 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i2.14515

Abstract

Humans are dynamic creatures who continue to follow developments over time. This development also has a big impact on changes in habits and has an impact on the health of everyone, which needs special attention in this era of globalization. One of the treatments for kidney failure patients is kidney function replacement therapy, namely haemodialysis. Haemodialysis therapy is a high technology to replace the function of the kidneys in removing metabolic waste (air, sodium, potassium, hydrogen, urea, creatinine, uric acid and other substances) through a semi-permeable membrane as a separator for blood and dialysate fluid in an artificial kidney (dialyzer). where the processes of diffusion, osmosis, and ultrafiltration occur. In this study, a hollow fiber type dialyzer was used which consisting of three main components: the shell (which directs dialysate flow), the porous membrane, and the tube (which carries blood). In general, this research will be carried out theoretically by developing a mathematical model of mass transfer in hollow fiber membranes in the haemodialysis process to study the distribution of urea and creatinine concentrations in the tube, membrane, and shell axial and radial section, the effect of pore area of membrane on urea and creatinine clearance, and the influence of dialysate flowrate on urea and creatinine clearance. The mathematical modeling successfully illustrates the distribution of urea and creatinine concentrations within the hollow fiber membrane both axially and radially, with a concentration decrease from blood to dialysate, influenced by diffusion and convection mechanisms. Simulation results indicate that increasing dialysate flowrate enhances haemodialysis efficiency, but its effect diminishes after reaching a certain threshold. Meanwhile, increasing the membrane surface area from 1.3 m² to 1.8 m² results in only a slight reduction in the urea concentration from 16.67 mol/m³ to 16.62 mol/m³ and creatinine from 8.85 mol/m³ to 8.83 mol/m³, demonstrating that membrane surface area has a smaller impact.
Fabrication and Characterization of Psf-TiO2/GO Membranes for Photocatalytic Decomposition of Dyes in Batik Liquid Waste Arofah, Rosyida Nofiana; Rahmawat, Yeni; Taufany, Fadlilatul; Nurkhamidah, Siti
Eksergi Vol 22 No 2 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i2.14654

Abstract

One of the important processes in making batik cloth is dyeing which requires large amounts of water. Liquid waste from washing and rinsing batik cloth produces color from residual dye and can be the main source of water pollution. One method of removing dyes is the ultrafiltration process using Membrane Technology for photocatalytic decomposition. In this research, polysulfone (PSf) membrane uses addition of different TiO2 compositions (1, 1.5, 2, 3, and 5 wt.%) and graphene oxide (GO) of 0.5 wt.% composition as photocatalyst. The photocatalyst can store energy therefore the photocatalytic process can be performed in a visible light environment. To identify the best composition of photocatalysts, photocatalytic performances were tested by the removal of methyl violet as dye along with characterization of the membranes for the morphological and physicochemical properties using FTIR, SEM, XRD, and DMA. The highest performance under visible light was shown by a membrane containing 5 wt.% TiO2, which provided a permeate flux of 22.97 L m-2 h-1 and dye removal of up to 89.84%. The findings indicated that the PSf membrane matrix's stability and photocatalytic enhanced potential are driven by the cooperative interaction between TiO2 and GO nanoparticles, which function as photocatalysts.
Comparative Analysis of CO₂ Content in Biogas and Synthetic Gas Using Chittick Titration Validated by Gas Chromatography Pambudi, Alfian Wisnu; Rahmawati, Yeni; Taufany, Fadlilatul; Altway, Ali; Susianto
Eksergi Vol 22 No 2 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i2.14809

Abstract

This study aimed to validate the Chittick titration method for measuring carbon dioxide (CO2) content using gas chromatography (GC) as the reference method. Two types of gas samples were analyzed: synthetic CO2/N2 gas with a theoretical composition of 40:60 and biogas produced by anaerobic fermentation. Analyses were conducted in parallel using both methods to compare CO2 measurements. For synthetic gas, the Chittick titration recorded an average CO2 content of 39.11%, whereas GC recorded 40.52%. For biogas, Chittick titration produced 30.16%, whereas GC measured 31.40%. The differences between the methods were 0.81% for synthetic gas and 1.55% for biogas, with relative errors of 2.00% and 3.45%, respectively. The t-test results showed statistically significant differences (p < 0.05) between the methods for both gas types. However, the observed deviations remained within practically acceptable limits for small-scale laboratory applications. These findings suggest that Chittick titration is a practical and cost-effective alternative for estimating CO2 content, particularly in laboratories with limited access to gas chromatography equipment. This study is expected to serve as a useful reference for educational institutions and small laboratories that are seeking to develop simple gas analysis methods with adequate validity.
Lysis Buffers for Detecting Pork Content in Food Products Khoiriah, Ulfah Lailatul; Baydillah, Pramudja; Darmawan, Raden; Nasori, Nasori; Taufany, Fadlilatul; Gunawan, Setiyo
Indonesian Journal of Chemistry Vol 25, No 4 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.101620

Abstract

The increasing number of counterfeit processed food products with non-halal ingredients, such as pork, has caused public concern about the halalness of Indonesian food products, especially in the Muslim community. This issue has prompted the development of halal authentication techniques, including deoxyribonucleic acid (DNA) isolation followed by polymerase chain reaction (PCR) amplification to detect pork DNA. The main purpose of this research was to modify the lysis buffer using tris-ethylenediaminetetraacetic acid, cetyl trimethylammonium bromide, salt, alkaline, and urea. Two DNA extraction methods were evaluated using kit-based and conventional methods with modified lysis buffer. Using a fluorometer, it was proven that the conventional method with modified urea lysis buffer produced quite competitive DNA concentrations (119 ng for pork meat and 100.05 ng for pork sausage), as confirmed by real-time PCR analysis. As a result, the modified urea lysis buffer can be further developed because it is more affordable.
Effect of Diethanolamine (DEA) Solvent Flow Rate on the CO2 Absorption-Desorption Process Using a Hollow Fiber Membrane Contactor Pamungkas, Raditya; Nurkhamidah, Siti; Taufany, Fadlilatul; Altway, Ali; Susianto, Susianto; Rahmawati, Yeni
Eksergi Vol 22 No 3 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i3.14951

Abstract

One of the primary objectives in decarbonization is the separation of CO₂ from industrial gas mixtures, particularly in application such as biogas purification and flue gas treatment. A dual-layer crossflow membrane module was utilized under both circulation and batch operating modes with a 30% DEA solution. This study investigates the influence of solvent flow velocity on CO₂ separation performance using a hollow fiber membrane contactor with a 30% DEA solvent. the process was evaluated under two operating modes: batch and solvent circulation. Key variables measured include the solvent flow rate (40–160 mL/min), operating temperature (30–50°C), and sweep gas flow rate (100–300 mL/min). The results indicate that under continuous operation with a solvent flow rate of 160 mL/min, a temperature of 30°C, and a sweep gas flow rate of 100 mL/min, 50.42% of the CO₂ was successfully removed. In contrast, the batch system, under identical conditions achieved only a 27.8% removal rate. The superior performance in circulation mode is attributed to the continuous renewal of the solvent, which sustains a stable concentration gradient and minimizes mass transfer resistance. These findings underscore the potential of membrane-based systems with optimized solvent circulation for efficient and stable CO₂ capture in industrial applications.
Analysis of GNSS-IMU Lidar Integration for Indoor Positioning Using Unscented Kalman Filter Amelia Nuri Ila, Qarina Putri; Cahyadi, Mokhamad N.; Asfihani, Tahiyatul; Suhandri, Hendy F.; Taufany, Fadlilatul
Civil Engineering Journal Vol. 11 No. 8 (2025): August
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-08-06

Abstract

Accurate navigation systems are important in various vehicle applications, both indoors and outdoors. Global Navigation Satellite System (GNSS) and Inertial Measurement Unit (IMU) are sensors that are often used in vehicle navigation systems. GNSS has the advantage of providing accurate position and speed information, IMU is able to make measurements without being affected by environmental conditions, and LiDAR sensors can model the environment; however, the limited signal on GNSS in indoor environments results in decreased position accuracy. The development of GNSS-IMU integration has been widely carried out, one of which is by adding a LiDAR sensor. In this study, an improvement will be made to the integration algorithm on Vision RTK2, which produces GNSS-IMU coordinate data, and Backpack Lidar, which can display 3D visualization on the traversed path using the Unscented Kalman Filter (UKF) method to improve navigation accuracy, especially in indoor environments. The results of the study showed that the UKF simulation and free outage conditions showed high accuracy with RMSE of 0.00308 m and 0.00175 m for the Easting and Northing positions and MAE of 0.00088 m and 0.00024 m. However, in outage conditions, the RMSE values were 4.0881 m and 8.6317 m, and MAE of 5.9871 m and 7.4182 m. The results of the 3D point cloud of the LiDAR model that had been georeferenced using the UKF fusion results and the KKH calculation results were validated using a rolling meter. Validation of point cloud processing from the 3D LiDAR model using a rolling meter and georeferencing with KKH calculations showed a small RMSE value, which was 0.3420 m, and 0.0354 m for the distance dimension with a rolling meter. 0.6358 m for georeferenced RMSE using UKF fusion data, and 0.0779 for distance dimension using roll meters. The small RMSE results indicate a high level of agreement between point cloud data and measurements using a rolling meter used as reference data. This study shows that the integration of GNSS-IMU sensors with LiDAR using the UKF method can improve the accuracy and reliability of indoor navigation systems.
Co-Authors Ali Altway Amelia Nuri Ila, Qarina Putri Arofah, Rosyida Nofiana Baydillah, Pramudja Cahyadi, Mokhamad N. Darmawan, Raden Fauziah, Melinda Nur Khoiriah, Ulfah Lailatul Koswara, Arwi Yudhi Larasati, Wahyu Adinda Nasori, Nasori Pambudi, Alfian Wisnu Pamungkas, Raditya Rahmawat, Yeni Setiyo Gunawan Siti Nurkhamidah Srikalimah Suhandri, Hendy F. Suryo, Is Bunyamin Susianto Susianto Susianto Tahiyatul Asfihani Yeni Rahmawati, Yeni Zuhdan, Alya Zahrani