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Rosalia Sira Sarungallo
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Paulus Chem Engineering Journal
Published by Universitas Kristen Indonesia Paulus
ISSN : 30262666     EISSN : -     DOI : https://doi.org/10.63365/86jpzg48
Core Subject :
Paulus Chem Engineering Journal merupakan jurnal ilmiah yang mempublikasikan hasil penelitian, kajian ilmiah, dan inovasi di bidang Teknik Kimia serta bidang rekayasa terapan yang terkait. Jurnal ini bertujuan untuk menjadi wadah diseminasi ilmu pengetahuan dan teknologi yang berkontribusi pada pengembangan proses industri, rekayasa material, serta pemanfaatan sumber daya alam secara berkelanjutan. Ruang lingkup jurnal mencakup, namun tidak terbatas pada: Rekayasa Proses dan Operasi Teknik Kimia, meliputi kinetika reaksi, perpindahan massa dan panas, serta optimasi proses industri. Rekayasa Material dan Biomaterial, seperti material berbasis biomassa, biopolimer, bioadhesif, dan material fungsional ramah lingkungan. Teknologi Pengolahan Sumber Daya Alam dan Pangan, yaitu pengolahan hasil pertanian, pangan, dan biomassa untuk aplikasi industri. Energi dan Lingkungan, meliputi energi terbarukan, pengolahan limbah, dan teknologi berkelanjutan. Teknologi dan Sistem Rekayasa Terapan, mencakup integrasi sistem teknik dalam bidang Teknik Mesin dan Teknik Elektro yang relevan dengan proses industri, instrumentasi, kontrol proses, dan efisiensi energi. Pengembangan Produk dan Teknologi Industri, seperti formulasi produk berbasis kimia dan peningkatan kualitas produk. Jurnal Paulus Chem Engineering Journal menerima artikel dari disiplin ilmu terkait seperti Teknik Mesin, Teknik Elektro, serta Teknologi Hasil Pertanian dan Pangan, sepanjang memiliki keterkaitan yang jelas dengan rekayasa proses, material, dan aplikasi industri. Jurnal kami menerima artikel dalam bentuk hasil penelitian asli (original research article), artikel tinjauan (review article), dan komunikasi singkat (short communication) yang belum pernah dipublikasikan sebelumnya. Paulus Chem Engineering Journal diterbitkan secara berkala dua kali dalam setahun (Februari dan Agustus) dan dikelola menggunakan sistem Open Journal Systems (OJS) dengan proses peer-review yang objektif, serta berkomitmen untuk menjunjung tinggi etika publikasi ilmiah serta meningkatkan kualitas publikasi melalui indeksasi nasional dan internasional.
Arjuna Subject : -
Articles 29 Documents
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Pengaruh Penambahan Tepung Rumput Laut (Cottonii, Spinosum, Gracilaria) Terhadap Kandungan Nutrisi (Protein, Dan Kadar Abu) Amplang Ikan Tongkol Esri Ruga Tumaya; Tjodi Harlim; Lyse Bulo
Paulus Chem Engineering Journal Vol 1 No 1 (2022): Vol.1 No.1 Juni 2022 Paulus Chemical Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

The technology of diversifying the processing of komo tuna fish pulp, which is nutritious and rich in fiber, is carried out by adding cottonii, Spinosum, and Gracilaria types of seaweed flour. In this paper, we will discuss the effect of adding cottonii, Spinosum, Gracilaria seaweed flour to the nutritional content (protein, and ash content) of komo tuna (Euthynnus affinis) amplang, and the panelists' preference for komo tuna (Euthynnus affinis) amplang. seaweed flour (cottonii, spinosum, gracilaria) was added through hedonic test. The method used is an experiment with the main stages covering the preparation of raw materials, making seaweed flour, making komo tuna fish amplang. The results obtained were the addition of seaweed flour (cottonii, spinosum, gracilaria) had an effect on the protein content and ash content of amplang komo tuna (Euthynnus affinis). The protein content of tuna Amplang is 25.9% for the addition of Cottonii type seaweed, while the ash content does not meet the SNI standard for the addition of seaweed to Amplang. Amplang organoleptic test obtained the highest number of appearances in the treatment without the addition of seaweed flour, then followed by cottonii, spinosum and finally gracilaria seaweeds, as well as the high textural values in the treatment without the addition of seaweed flour.
Pengaruh Penambahan Alginat Pada Pembuatan Serbuk Terong Belanda ( Cypomandra Betaceae ) Ledy Bulawan; Tjodi Harlim; Lyse Bulo
Paulus Chem Engineering Journal Vol 1 No 1 (2022): Vol.1 No.1 Juni 2022 Paulus Chemical Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

This study aims todetermine the appropriate ratio between the water and fruit juice as well as the mass of the alginate powder as well as organoleptic test results tamarillo Powder . The method used to study the tamarillo powder is a volume ratio of water : fruit juice ( 1 : 1 , 1 : 2 , 1 : 3 ) with the addition of alginate 0.1 g , 0.2 g , 0.3 g . Analysis was conducted on the organoleptic ( flavor , aroma , color , texture ) and humidity . Based on the research results of data processing tamarillo powder obtained the best results of the organoleptic analysis through expert panelists that the volume ratio of water : fruit juice ( 1 :1 ) with the addition of 0.1 g alginate which give a sense ( strong acids and sweet-sour ) , aroma tamarillo powerful , purple –brown color , and relatively coarse texture with a water content of 0.05 % .
Metode Elektrokoagulasi Untuk Pengolahan Limbah Cair Laboratorium Yang Mengandung Logam-Logam Berat Marthen Joning; Lydia Melawaty; Rosalia Sira Sarungallo
Paulus Chem Engineering Journal Vol 1 No 1 (2022): Vol.1 No.1 Juni 2022 Paulus Chemical Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

In this research several variations of process variables such as pH, time and voltage were carried out to observe operating conditions that were more effective in reducing pollutants in wastewater. Before the electrocoagulation process was carried out the initial characterization of the waste using the ICP-OES analysis method and obtained the results of the initial concentration of pollutants such as TSS = 119 mg / L, Iron metal (Fe) = 24,453 mg / L, Copper (Cu) = 9,732 mg / L, Lead (Pb) = 0.309 mg / L and Selenium (Se) = 0.052 mg / L. The characterization of the wastewater pollutants does not meet the quality standards of liquid waste to be flowed to the environment based on Environmental Ministerial Regulation No. 05 of 2014. After going through the processing process by electrocoagulation method, pollutants of suspended solids and metals can be reduced in concentration to: TSS = 32 mg / L, ferrous metal (Fe) = 0.003 mg / L, Copper (Cu) = 0.074 mg / L, Lead (Pb) = 0.023 mg / L, and Selenium (Se) almost close to zero. Based on the data of pollutant concentrations in waste before and after the electrocoagulation process, it can be stated that the electrocoagulation method is effective in reducing Total Suspended Solid (TSS) pollutant levels by 73.12%, Iron (Fe) metals by 99.99%, Copper (Cu)) by 99.24%, Lead (Pb) by 92.56%, Selenium (Se) by 99.81%. The results were obtained under operating conditions at 10 volt voltage, 10 minutes time and pH 9. the electrocoagulation method produced the quality of wastewater that meets the requirements for drainage of the environment based on waste water quality standards according to the Environmental Ministerial Regulation No. 05 of 2014.
Pengaruh Variasi Volume Pelarut Heksan dan Waktu Ekstraksi Terhadap Lemak Kakao yang Dihasilkan Regina Resti Oktaviana; Lyse Bulo; Lydia Melawaty
Paulus Chem Engineering Journal Vol 1 No 1 (2022): Vol.1 No.1 Juni 2022 Paulus Chemical Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

Cocoa beans (theobroma cacao) are Indonesian agricultural commodities that have high economic value. Cocoa fat is one of cocoa bean processed products that is useful for aromatization. One method of extraction cocoa fat is the method of maceration, which is a separation method used to remove one or several components of a solid or liquid with the help of a solvent. In this research, cocoa fat extraction process is done, which is done percentage analysis, saponification number and acid number from cocoa fat extraction result. The purpose of this study was to determine the effect of process variables on cocoa fat content. Specifically include: (1) the effect of solvent volume on the amount of cocoa fat present, (2) to know the correlation of extraction time to the amount of cocoa fat produced. The results showed that the yield of cocoa fat was inversely proportional to the increase in the solvent volume variable (ml), and was directly proportional to the time of extraction (hours). The results showed that the highest percentage ofbrown oil of 18.12% was obtained from cocoa fat extraction using 200 ml hexane solvent for 6 hours yellow and solid and the aroma concentrated.
Pengaruh Waktu Pemanasan dan Konsentrasi Larutan Pemasak Terhadap Kualitas Pulp dari Eceng Gondok (Eichhornia Crassipes) Rony Tulak; Lyse Bulo; Tjodi Harlim
Paulus Chem Engineering Journal Vol 1 No 1 (2022): Vol.1 No.1 Juni 2022 Paulus Chemical Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

Pulping process from water hyacinth (eichronia crassipes) is done by using soda proces, where pulping process starting with the preparation of raw materials, cooking process using NaOH solution, washing with water, filtering and drying then analyzed to determine the quality of the pulp. The dried pulp is bleached using chorine.The Variable concentration of NaOH cooking solution 7%, 9%, 11% and cooking time 90, 120, 150 minutes are the variable which used to determine its effect on the quality of the pulp produced. Meanwhile, the parameters tested to determine the pulp quality are yield (% yield), moisture content and physical strength of the pulp.On this research were obtained that the optimum concentration at 7% and cooking time at 90 minutes with % yield of 17,167% , moisture content 9,615%, tensile strength (Force) 25,47 N and voltage (σ) 2,461 MPa.
Pembuatan Arang Aktif dari Cangkang Kelapa Sawit, Tempurung Kelapa, dan Cangkang Kakao dengan Proses Torefaksi M. Saleh; Jeliana Doi; Yoel Pasae
Paulus Chem Engineering Journal Vol 1 No 1 (2023): Vol.1 No.1 Agustus 2023 Paulus Chem Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

The purpose of this of this research is to know how to make activated charcoal from palm shells, coconut shell and cocoa shell with process of torefaction; to know the characteristics of activated charcoal made from palm shells, coconut shells and cocoa shells through the variation of time and temperature of each stage and organoleptic analysis. The method of active charcoal research is the preparation of raw materials including the drying and clearing of oil palm shells, coconut shells and cocoa shells from dirt, small cuts of palm shells, coconut shells and cocoa shells to facilitate and accelerate the process of cultivation. In the process of cooking oil palm shells, coconut shells and cocoa shells are inserted into the iron cauldron until the smoke runs out. After that it is smoothed by using mortar and pestle. Then sieved. The results showed that the activated charcoal from coconut shell, coconut shell and cocoa shell can be done through the process of torefaction conducted in the open air, by keeping during the process of burning not happened; The best activated charcoal is obtained from coconut shell with rendamen 43,44%, 0,5% moisture content 0,5%, ash content 2,5%, fly content 25,5%, and bound carbon content 72%.
Pengaruh Berbagai Metode dan Jenis Kelapa Terhadap Kualitas Virgin Coconut Oil (VCO) Nikita Masirin; Maxie Djonny T.; Lydia Melawaty
Paulus Chem Engineering Journal Vol 1 No 1 (2023): Vol.1 No.1 Agustus 2023 Paulus Chem Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

The purpose of this study was to study the effect of the method of making VCO and the type of coconut on the quality of VCO.The benefit of this research is to provide information to the community about various ways of making virgin coconut oil to see its influence with the type of coconut used on the quality of VCO produced, economical, functional and can increase the selling value of coconut products, especially virgin coconut oil (VCO). The method of making VCO consisted of enzymatic method, fermentation method, and acidification method with ordinary coconut and hybrid coconut. Determination of quantity includes calculation of volume, yield and density while determining the quality includes water content, acid number, and organoleptic test. The research result found that the method of making VCO and the type of coconut affected the quality of VCO.
VARIETAS BERAT SAMPEL BATUBARA UNTUK PENGEMBANGAN METODE UJI TOTAL SULFUR DENGAN STANDAR ASTM D4239-18E1 MENGGUNAKAN SULFUR ANALYZER Yeheskiel Yunus Buttu; Abelina Aprilyantin Ekasari Utami; Vrederix Dandy
Paulus Chem Engineering Journal Vol 1 No 1 (2023): Vol.1 No.1 Agustus 2023 Paulus Chem Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

Coal is an organic rock that has a high selling value because it is capable of producing energy into fuel, and is currently still needed by industries that use dry fuel. Coal is obtained from mining companies in Indonesia. In detail, most coal in Indonesia is obtained from the provinces of East Kalimantan and South Kalimantan. Coal contains many elements of carbon, nitrogen, hydrogen and a little sulfur. Each coal mining company will have different coal quality, so coal quality needs to be determined according to testing standards. Total sulfur is one of the test parameters in coal before it is used. The purpose of this research is to determine the total sulfur value of coal by varying the sample weight. The variety of weights used for the development of the total sulfur analysis method for coal samples, can be seen the range of sample weights used for the total sulfur test for coal samples with the ASTM D4239-18E1 standard. Coal sample test method used with a weight variety of 0.0500 gram; 0.1000 grams; 0.1500 grams; 0.2000 grams; 0.2500 grams; and 0.3000 grams. Sulfur analyzer is used at a temperature of 1350 ̊C because it involves a combustion process. The burning coal sample will decompose into sulfur oxide compounds which will be detected by an infrared detector. Oxygen gas with a purity of 99.5% is used to burn the coal sample. Coal sample weight with constant reading results obtained at a sample weight of 0.2000 grams to 0.3000 grams.
Produksi Bioethanol Berbasis Nira Sorgum Manis (Sorghum Bicolor) Melalui Rekayasa Bioproses Pada Kultivasi Batch dan Destilasi Satu Tahap Grace Ananda; M Saleh; Rosalia Sira Sarungallo
Paulus Chem Engineering Journal Vol 1 No 1 (2023): Vol.1 No.1 Agustus 2023 Paulus Chem Engineering Journal
Publisher : Prodi Teknik Kimia

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Abstract

The purpose of this research in general is to obtain a productive and efficient bioethanol production process technology through bioethanol production engineering of the Sweet sorghum Nira (Sorghum bicolor) using Saccharomyces cerevisiae in Batch cultivation. This research is specifically aimed at; Determining the concentration of sugar and bioethanol at the end of fermentation to nira sorghum sweetened with presses and extraction; Determinethe optimization of the column height (the volume Destilat) bioethanol distillation tool against the yield and rendament. Nira Sweet Sorghum (Sorghum bicolor) potentially as the raw material ofbioethanol production. In this study the varieties used were sweet Sorghum Super 1, with a brix sugar content of 6% through the stage of pressing of the sorghum stem and 3% through the extraction stage of the sorghum rod. The level of bioethanol obtained after fermentation is 19% in the pressing process and 10% in the extraction process. Based on the results of studies that have been done in this study, it can be concluded that: the highest bioethanol summation is the result of distillation by using a column height of 44 cm (ordinary distillation apparatus) of 75% of the pressing result. The highest bioethanol rendament is 0.722% by using a column height of 44cm (ordinary destillation). Bioethanol Yield is 4.3% by using a column height of 44cm (ordinary destillation)
Penentuan Kualitas Batubara Berdasarkan Kolerasi Nilai HGI dan Residual Moisture HGI dengan menggunakan Metode ASTM Reinaldy Octavian Dominggus; Apriliani Binasti More; Dean Octen Romatua Sarumpaet; Rosalia Sira Sarungallo
Paulus Chem Engineering Journal Vol 2 No 1 (2024): Vol.2 No.1 Februari 2024 Paulus Chem Engineering Journal
Publisher : Prodi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63365/2j4jz803

Abstract

Batubara yang digunakan sebagai bahan bakar memerlukan spesifikasi tertentu, meliputi Nilai Kalori Tinggi (High Heating Value, HHV), kadar air total (Moisture), Moisture residual, materi mudah menguap (Volatile Matter), kandungan abu (Ash Content), kandungan sulfur (Sulfur Content), dan Hardgrove Grindability Index (HGI). Kualitas batubara sangat dipengaruhi oleh korelasi antara nilai HGI dan Moisture residual HGI. HGI adalah parameter yang menunjukkan kemudahan batubara untuk digiling; nilai HGI yang lebih tinggi menandakan kemudahan penggilingan yang lebih besar. Moisture Residual HGI adalah parameter yang menentukan tingkat kelembapan batubara dengan mengukur kadar air dalam batubara yang telah dikeringkan sebelumnya. Penelitian ini bertujuan untuk mengetahui kualitas batubara berdasarkan metode ASTM dan mengidentifikasi korelasi antara nilai HGI dan Moisture Residual HGI. Analisis dilakukan dengan menggunakan metode ASTM D409/D409M yang meliputi proses preparasi, penentuan nilai HGI menggunakan mesin HGI, dan pengujian kadar Moisture Residual HGI dengan menggunakan oven MFS yang dialiri gas kompres udara. Hasil penelitian menunjukkan bahwa sampel batubara A memiliki nilai HGI 41% dan Moisture Residual HGI 5,17%, yang mengklasifikasikannya sebagai batubara berperingkat rendah. Sementara itu, sampel B, dengan nilai HGI 66% dan Moisture Residual HGI 29,13%, diklasifikasikan sebagai batubara berperingkat tinggi. Sampel A termasuk dalam kategori batubara lignit (sub-bituminous) dan sampel B dikategorikan sebagai batubara bituminous (antrasit). Dari hasil ini, dapat disimpulkan bahwa kualitas batubara sangat dipengaruhi oleh korelasi antara nilai HGI dan Moisture Residual HGI.

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