Pub Date : 2021-10-31DOI: 10.31599/jaringsaintek.v3i2.483
Eko Prastio, Abdullah Rizky Agusman
This article has been retracted at the request of publisher.Reason: This article is virtually identical to the previously published article "Peningkatan Produksi Dengan Cara Mendesain Ulang Progressive Cavity Pump (Pcp) Pada Sumur “E” Lapangan “P”” Petro:Jurnal Ilmiah Teknik Perminyakan, Volume 10 No. 3 (2021), 136-143 authored by Eko Prastio, Abdullah Rizky Agusman
应出版商的要求，本文已被撤回：本文与之前发表的文章 "Peningkatan Produksi Dengan Cara Mendesain Ulang Progressive Cavity Pump (Pcp) Pada Sumur "E" Lapangan "P"" 几乎相同。Petro:Jurnal Ilmiah Teknik Perminyakan，第 10 卷第 3 期（2021 年），136-143 作者：Eko Prastio、Abdullah Rizky Agusman
{"title":"Retracted: Optimasi Laju Produksi dengan Cara Desain Ulang Progressive Cavity Pump (PCP) pada Sumur “X” Lapangan “Y”","authors":"Eko Prastio, Abdullah Rizky Agusman","doi":"10.31599/jaringsaintek.v3i2.483","DOIUrl":"https://doi.org/10.31599/jaringsaintek.v3i2.483","url":null,"abstract":"This article has been retracted at the request of publisher.Reason: This article is virtually identical to the previously published article \"Peningkatan Produksi Dengan Cara Mendesain Ulang Progressive Cavity Pump (Pcp) Pada Sumur “E” Lapangan “P”” Petro:Jurnal Ilmiah Teknik Perminyakan, Volume 10 No. 3 (2021), 136-143 authored by Eko Prastio, Abdullah Rizky Agusman","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129519934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.31599/jaringsaintek.v3i2.322
Uus Rusmawan
Ardhi Karya Teknik is a company engaged in construction, painting, cooling engineering and information technology. This company experiences difficulties in managing finances, especially in terms of budget provision and use, the concentration of problems revolves around the budget allocation for operational costs that are routinely issued every year and the facts in the field regarding the use of the budget. Therefore it is necessary to have a budget application that is able to manage and provide accurate information about the company budget. The method used in this research is waterfall. After the application is made and implemented in the company, the budget allocation process and reports on its use can be presented quickly and accurately and can help the parties involved in the company to make the necessary decisions.
Ardhi Karya Teknik是一家从事建筑，涂装，冷却工程和信息技术的公司。该公司在财务管理方面遇到困难，特别是在预算提供和使用方面，问题集中在每年例行发布的运营成本预算分配和有关预算使用的实际情况。因此，有必要拥有一个能够管理和提供有关公司预算的准确信息的预算应用程序。本研究采用瀑布法。在公司提出申请并实施后，预算分配过程和使用报告可以快速准确地呈现出来，并可以帮助公司相关各方做出必要的决策。
{"title":"SISTEM INFORMASI ANGGARAN PADA PT. ARDHI KARYA TEKNIK","authors":"Uus Rusmawan","doi":"10.31599/jaringsaintek.v3i2.322","DOIUrl":"https://doi.org/10.31599/jaringsaintek.v3i2.322","url":null,"abstract":"\u0000 Ardhi Karya Teknik is a company engaged in construction, painting, cooling engineering and information technology. This company experiences difficulties in managing finances, especially in terms of budget provision and use, the concentration of problems revolves around the budget allocation for operational costs that are routinely issued every year and the facts in the field regarding the use of the budget. Therefore it is necessary to have a budget application that is able to manage and provide accurate information about the company budget. The method used in this research is waterfall. After the application is made and implemented in the company, the budget allocation process and reports on its use can be presented quickly and accurately and can help the parties involved in the company to make the necessary decisions.\u0000\u0000 ","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114818568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-31DOI: 10.31599/jaringsaintek.v3i2.716
Yoga Mangun Wirajaya, Nur Yanu Nugroho, Bagiyo Suwasono
In the industrialized world, low-carbon steel was often used as a construction material. One of the problems obtained in the low carbon steel welding process was its nature susceptible to shakes. The minimize the formation of residual voltage in the connection area (Heat Affected Zone) can be done by the Post Weld Heat Treatment (PWHT) process The purpose of this study was to find out the effect caused by variations in heat treatment on heating steel ASTM A36 (Holding Time) to penetrant tests and determine the suitable temperature given to ASTM A36 steel after the welding process. The PWHT process was carried out with several variations of Holding Time, namely 1 hour, 2 hours, and 3 hours at 400 °C. Based on penetrant testing showed that the best value in Holding Time was 3 hours with no appearance of porosity defects
{"title":"Holding Time pada Sifat Fisik Pengelasan SMAW Baja ASTM-A36 melalui Uji Penetran","authors":"Yoga Mangun Wirajaya, Nur Yanu Nugroho, Bagiyo Suwasono","doi":"10.31599/jaringsaintek.v3i2.716","DOIUrl":"https://doi.org/10.31599/jaringsaintek.v3i2.716","url":null,"abstract":"In the industrialized world, low-carbon steel was often used as a construction material. One of the problems obtained in the low carbon steel welding process was its nature susceptible to shakes. The minimize the formation of residual voltage in the connection area (Heat Affected Zone) can be done by the Post Weld Heat Treatment (PWHT) process The purpose of this study was to find out the effect caused by variations in heat treatment on heating steel ASTM A36 (Holding Time) to penetrant tests and determine the suitable temperature given to ASTM A36 steel after the welding process. The PWHT process was carried out with several variations of Holding Time, namely 1 hour, 2 hours, and 3 hours at 400 °C. Based on penetrant testing showed that the best value in Holding Time was 3 hours with no appearance of porosity defects","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124393535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-15DOI: 10.31599/JARING-SAINTEK.V2I1.63
Ika Yuniva, Andriansah, M. S. A. Arkab
Eman Sounds is a business venture in the field of sound system rental services. The Eman sounds does not currently have a website application. The leasing service transaction system is still done conventionally, where if anyone wants to rent a sound system for a wedding or other official event can come directly to the Eman Sounds to see and rent it. For transaction reports sound system rental services are still recorded with paper so as to allow for data loss and errors in recording transactions. The purpose of this study is that the author will design a web sound system rental service for Eman Sounds so that it is expected to simplify the process of leasing transactions and making rental reports. The author uses the system development method, namely the waterfall model for this study. The use of PHP and HTML programming languages the author uses to create web rental services and MYSQL as the database. The results of this study are expected that with a web design sound system rental service can help Eman Sounds in the process of managing rental transactions and reports.
Eman Sounds是一家在音响系统租赁服务领域的企业。Eman sounds目前还没有网站应用程序。租赁服务交易系统仍然是传统的，如果有人想为婚礼或其他官方活动租用音响系统，可以直接来Eman Sounds查看和租用。对于交易报告，健全的系统租赁服务仍然用纸张记录，以便在记录交易时允许数据丢失和错误。本研究的目的是作者将为Eman Sounds设计一个网络音响系统租赁服务，以期简化租赁交易和制作租赁报告的过程。本文采用系统开发方法，即瀑布模型进行研究。作者使用PHP和HTML编程语言创建网页租赁服务，并使用MYSQL作为数据库。本研究的结果是期望透过网页设计音响系统的租赁服务，可以协助Eman音响在管理租赁交易及报告的过程中。
{"title":"Perancangan Web Jasa Penyewaan Sound System Pada Eman Sounds","authors":"Ika Yuniva, Andriansah, M. S. A. Arkab","doi":"10.31599/JARING-SAINTEK.V2I1.63","DOIUrl":"https://doi.org/10.31599/JARING-SAINTEK.V2I1.63","url":null,"abstract":"Eman Sounds is a business venture in the field of sound system rental services. The Eman sounds does not currently have a website application. The leasing service transaction system is still done conventionally, where if anyone wants to rent a sound system for a wedding or other official event can come directly to the Eman Sounds to see and rent it. For transaction reports sound system rental services are still recorded with paper so as to allow for data loss and errors in recording transactions. The purpose of this study is that the author will design a web sound system rental service for Eman Sounds so that it is expected to simplify the process of leasing transactions and making rental reports. The author uses the system development method, namely the waterfall model for this study. The use of PHP and HTML programming languages the author uses to create web rental services and MYSQL as the database. The results of this study are expected that with a web design sound system rental service can help Eman Sounds in the process of managing rental transactions and reports.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125064262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-06-15DOI: 10.31599/JARING-SAINTEK.V2I1.61
Rano Agustino, Y. Widodo, Agus Wiyatno, Mohammad Ikhsan Saputro
The Institute for Research and Community Service or Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) is an activity institution at the University Mohammad Husni Thamrin (UMHT) which functions to manage all research and community service activities. Every research conducted by lecturers aims to improve their quality in gathering tri dharma values, especially on research and community service. But at this time the processing of research data and community service to the LPPM UMHT has not used a database because the data processing uses excel and data archiving is still in physical form which can make it difficult to find data when the data is needed. Data management by using a database and a special application program is expected to be able to support an information system that is fast and accurate, so that the problem of time and the level of effectiveness in managing research data and community service can be optimized. In addition, the need for information from this institution is needed in a fast and appropriate condition to support the improvement of the quality of lecturers and others in terms of research and community service.
研究和社区服务研究所或Lembaga Penelitian dan Pengabdian Masyarakat (LPPM)是穆罕默德·胡斯尼·塔姆林大学(UMHT)的一个活动机构，负责管理所有研究和社区服务活动。讲师所做的每一项研究都是为了提高他们在收集三法价值方面的素质，特别是在研究和社区服务方面。但此时的研究数据的处理和社区服务到LPPM UMHT还没有使用数据库，因为数据处理使用excel和数据存档仍然是物理形式，这可能会使数据难以找到数据时需要的数据。通过使用数据库和特殊应用程序进行数据管理，期望能够支持快速准确的信息系统，从而优化管理研究数据和社区服务的时间和有效性问题。此外，需要从该机构获得快速和适当的信息，以支持在研究和社区服务方面提高讲师和其他人的质量。
{"title":"Sistem Informasi Penelitian dan Pengabdian Masyarakat di Universitas Mohammad Husni Thamrin","authors":"Rano Agustino, Y. Widodo, Agus Wiyatno, Mohammad Ikhsan Saputro","doi":"10.31599/JARING-SAINTEK.V2I1.61","DOIUrl":"https://doi.org/10.31599/JARING-SAINTEK.V2I1.61","url":null,"abstract":"The Institute for Research and Community Service or Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) is an activity institution at the University Mohammad Husni Thamrin (UMHT) which functions to manage all research and community service activities. Every research conducted by lecturers aims to improve their quality in gathering tri dharma values, especially on research and community service. But at this time the processing of research data and community service to the LPPM UMHT has not used a database because the data processing uses excel and data archiving is still in physical form which can make it difficult to find data when the data is needed. Data management by using a database and a special application program is expected to be able to support an information system that is fast and accurate, so that the problem of time and the level of effectiveness in managing research data and community service can be optimized. In addition, the need for information from this institution is needed in a fast and appropriate condition to support the improvement of the quality of lecturers and others in terms of research and community service.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116544671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-31DOI: 10.31599/JARING-SAINTEK.V1I2.171
Andry Fadjria, Rakhmat Purnomo, Nur Rahman
The cafeteria of Bhayangkara University, Greater Jakarta, has a problem that is a lot ofgarbage left by visitors to the canteen. Waste consists of plastic, paper, food scraps placedat the canteen table by visitors to the canteen. The location of the trash can is far from thevisitors, and the number of trash bins totaling 4 pieces, unable to accommodate the garbagefrom visitors to the canteen can get problems in environmental pollution for the future. Sohe made a study that produced a garbage bin robot with an industrial system 4.0, which isto assist the task of human work. With the aim of reducing the trash left by visitors to thecanteen and the convenience of visitors to put garbage on the robot. Using the protoypingmethod in the system of making garbage bins with the stages of collecting design processneeds, building prototypes, evaluating & repairing, producing a robot with a smartphonecontroller based on boarduino applications so that robots can work according to the needsexpected by researchers.
{"title":"Pengendali Robot Tempat Sampah Menggunakan Smartphone Berbasis Boarduino","authors":"Andry Fadjria, Rakhmat Purnomo, Nur Rahman","doi":"10.31599/JARING-SAINTEK.V1I2.171","DOIUrl":"https://doi.org/10.31599/JARING-SAINTEK.V1I2.171","url":null,"abstract":"The cafeteria of Bhayangkara University, Greater Jakarta, has a problem that is a lot ofgarbage left by visitors to the canteen. Waste consists of plastic, paper, food scraps placedat the canteen table by visitors to the canteen. The location of the trash can is far from thevisitors, and the number of trash bins totaling 4 pieces, unable to accommodate the garbagefrom visitors to the canteen can get problems in environmental pollution for the future. Sohe made a study that produced a garbage bin robot with an industrial system 4.0, which isto assist the task of human work. With the aim of reducing the trash left by visitors to thecanteen and the convenience of visitors to put garbage on the robot. Using the protoypingmethod in the system of making garbage bins with the stages of collecting design processneeds, building prototypes, evaluating & repairing, producing a robot with a smartphonecontroller based on boarduino applications so that robots can work according to the needsexpected by researchers.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123868566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-31DOI: 10.31599/JARING-SAINTEK.V1I2.172
Aly Rasyid
At northern part of Sumatera Indonesian onshore many drilling issues were encounteredin the area, in particular the overlying shales above the pay zones in the high deviatedtrajectory wells. Since the last well drilling in this area was 70’ era, so that limited data isanother drilling engineering challenge, especially to provide an accurate drilling fluid. Tocombat the drilling issues, utilization of pre-treated wellbore strengthening agent wasapplied to reduce well bore issues and strengthen the well with an effective filter cake. In Northern Sumatera Indonesian onshore well in Indonesia was used as a case study. First a brief understanding and fundamentals of geo-mechanics is described in reference to wellconstruction as well as filter cake fundamental to protect the hole stability. Results,observations and conclusions were drawn upon using a case study comparing a well ononshore in Indonesia which had many drilling problems such as stuck pipe/differentialsticking and washouts/hole enlargement issues related to well bore stability, after using thewellbore stability agent, the problems that encountered significantly decrease.
{"title":"Pemanfaatan Wellbore Strengthening Agent Selama Pengeboran di Onshore Sumatera Bagian Utara Indonesia","authors":"Aly Rasyid","doi":"10.31599/JARING-SAINTEK.V1I2.172","DOIUrl":"https://doi.org/10.31599/JARING-SAINTEK.V1I2.172","url":null,"abstract":"At northern part of Sumatera Indonesian onshore many drilling issues were encounteredin the area, in particular the overlying shales above the pay zones in the high deviatedtrajectory wells. Since the last well drilling in this area was 70’ era, so that limited data isanother drilling engineering challenge, especially to provide an accurate drilling fluid. Tocombat the drilling issues, utilization of pre-treated wellbore strengthening agent wasapplied to reduce well bore issues and strengthen the well with an effective filter cake. In Northern Sumatera Indonesian onshore well in Indonesia was used as a case study. First a brief understanding and fundamentals of geo-mechanics is described in reference to wellconstruction as well as filter cake fundamental to protect the hole stability. Results,observations and conclusions were drawn upon using a case study comparing a well ononshore in Indonesia which had many drilling problems such as stuck pipe/differentialsticking and washouts/hole enlargement issues related to well bore stability, after using thewellbore stability agent, the problems that encountered significantly decrease.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129765492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-31DOI: 10.31599/JARING-SAINTEK.V1I2.176
Hernowo Widodo, Joni Warta, M. Ulfah, Amaliah Annisa
Corrosion is a decrease in the quality of a material or metal due to electrolyte reactions in the environment that affect the life of the material. Corrosion rate is the speed of propagation or speed of decline in the quality of a material with time. Corrosion processes occur in acidic environments, sea water, rain water, and soil are the result of chemical reactions that are also caused by electrochemical processes. The purpose of this study is to determine the corrosion resistance of aluminum metal to variations in the solution of Methanol (CH3OH). This study uses aluminum plates that will be immersed 5 days with a solution of Methanol (CH3OH). How to collect data by testing the Scanning Electron Microscopy (SEM) on each aluminum plate specimen that has been treated with corrosion by heating at a temperature of 60 oC. Methanol solution is one of the factors causing corrosion of metals. If in the free environment, air, temperature, and acidic substances are most commonly found as a factor causing corrosion. The increased corrosion rate is due to the higher concentration of the cause of corrosion. In this discussion Methanol as the concentration used, and aluminum as the metal tested.
{"title":"Pengaruh Pelarut Metanol terhadap Alumunium sebagai Wadah Obat Salep Mata","authors":"Hernowo Widodo, Joni Warta, M. Ulfah, Amaliah Annisa","doi":"10.31599/JARING-SAINTEK.V1I2.176","DOIUrl":"https://doi.org/10.31599/JARING-SAINTEK.V1I2.176","url":null,"abstract":"Corrosion is a decrease in the quality of a material or metal due to electrolyte reactions in the environment that affect the life of the material. Corrosion rate is the speed of propagation or speed of decline in the quality of a material with time. Corrosion processes occur in acidic environments, sea water, rain water, and soil are the result of chemical reactions that are also caused by electrochemical processes. The purpose of this study is to determine the corrosion resistance of aluminum metal to variations in the solution of Methanol (CH3OH). This study uses aluminum plates that will be immersed 5 days with a solution of Methanol (CH3OH). How to collect data by testing the Scanning Electron Microscopy (SEM) on each aluminum plate specimen that has been treated with corrosion by heating at a temperature of 60 oC. Methanol solution is one of the factors causing corrosion of metals. If in the free environment, air, temperature, and acidic substances are most commonly found as a factor causing corrosion. The increased corrosion rate is due to the higher concentration of the cause of corrosion. In this discussion Methanol as the concentration used, and aluminum as the metal tested.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114176033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hernowo Widodo, Lisa Adhani, Elvi Kustiyah, I. Santoso
Vegetable fat can be used as a base for making chocolate butter substitutes in making chocolate coatings. The product is also called hard butter can be obtained using coconut oil. The fats used as a substitute for cocoa butter are coconut oil, palm oil and palm kernel oil that have been obtained by hydrogenation, the hydrogenation process is used to reduce iodine numbers to obtain oil in the form of plastic solids and to increase the consistency of oils and fats to reduce color and smell and to improve stability. In this study the hydrogenation reaction of coconut oil experienced an increase in speed when the commercial catalyst composition of Pricat 9910 was added with a 0.75 gram nickel catalyst and 0.75 grams of silica which was characterized by a drastic decrease in iodine number from 12.12 to 1.94 gr I2 / 100 gr example in the reaction time of 8 hours, It contained in hydrogenated coconut oil did not change or damage when the catalyst composition used in the hydrogenation process is increased.
{"title":"Studi Pengaruh Jenis Katalis, Waktu Reaksi dan Penurunan Bilangan IODINE pada Pembuatan Cocoa Butter Substitute dengan Proses Hidrogenasi Minyak Kelapa","authors":"Hernowo Widodo, Lisa Adhani, Elvi Kustiyah, I. Santoso","doi":"10.31599/JJST.V1I1.474","DOIUrl":"https://doi.org/10.31599/JJST.V1I1.474","url":null,"abstract":"Vegetable fat can be used as a base for making chocolate butter substitutes in making chocolate coatings. The product is also called hard butter can be obtained using coconut oil. The fats used as a substitute for cocoa butter are coconut oil, palm oil and palm kernel oil that have been obtained by hydrogenation, the hydrogenation process is used to reduce iodine numbers to obtain oil in the form of plastic solids and to increase the consistency of oils and fats to reduce color and smell and to improve stability. In this study the hydrogenation reaction of coconut oil experienced an increase in speed when the commercial catalyst composition of Pricat 9910 was added with a 0.75 gram nickel catalyst and 0.75 grams of silica which was characterized by a drastic decrease in iodine number from 12.12 to 1.94 gr I2 / 100 gr example in the reaction time of 8 hours, It contained in hydrogenated coconut oil did not change or damage when the catalyst composition used in the hydrogenation process is increased.","PeriodicalId":286819,"journal":{"name":"Jurnal Jaring SainTek","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114983038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Anggraini, Vicky Anderesta Kuswoyo, Mutia Annisa Marsya
Liquid Fertilizers contain a lot of organic waste which has been decomposed and ready for consumption by plants. By utilizing the remaining vegetables, dried leaves and tofu, it is expected to increase the economic value of waste and reduce environmental pollution. Liquid fertilizer composted by anaerobic fermentation and carried out in a closed bucket (composter) with a comparison of bio-activator wastewater of tofu and EM4. The characterization of liquid fertilizer products was carried out by Nitrogen Analyzer, UV-vis spectroscopies, and AAS tools to test the levels of Nitrogen, Phosphor and Potassium respectively. The Result shown that the N total levels (0,38 %), Phosphor levels (0,06 %), and potassium levels (0,15%) of POC that made from waste water of tofu are higher than POCEM4.
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