cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Harzukil
Contact Email
p2m@pnl.ac.id
Phone
+6281360929310
Journal Mail Official
jurnal.ristera@pnl.ac.id
Editorial Address
Jurusan Teknik Kimia, Politeknik Negeri Lhokseumawe Jalan Banda Aceh - Medan Km 280,3 Buketrata Po Box 90, Telp (0645) 42785 Fax (42785)
Location
Kota lhokseumawe,
Aceh
INDONESIA
Jurnal Riset, Inovasi, Teknologi & Terapan
Published by Politeknik Negeri Lhokseumawe
ISSN : 29872006     EISSN : 29861799     DOI : https://dx.doi.org/10.30811/ristera
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Industrial & Manufacturing Engineering
Jurnal Riset, Inovasi, Teknologi & Terapan (Jurnal RISTERA) merupakan sebuah wadah yang menampung artikel ilmiah dari hasil riset civitas akademika kampus, mahasiswa D3/Sarjana Terapan/S1/S2/S3, Praktisi, Industri, dan Instasi Pemerintah. Dengan adanya jurnal ini dapat memberikan informasi tentang inovasi terkini tentang teknologi terapan langsung yang dapat digunakan di industri dan masyrakat.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 46 Documents
 1   2   3   4   5 
Sintesis Selulosa Asetat Dari Limbah Kertas HVS Dengan Variasi Temperature dan Waktu Hidrolisis Hasriani, Dila; Adriana, Adriana; Zulkifli, Zulkifli
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 1 (2022): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i1.3698

Abstract

Cellulose acetate can be made by utilizing raw materials that contain cellulose, one of which is waste paper. It has been reviewed that waste paper still contains high cellulose. The purpose of this study was to determine the effect of variations in temperature and reaction time on cellulose acetate products in the hydrolysis process. The method used in this research is cellulose activation, acetylation and hydrolysis with the steps taken include preparation of raw materials, delignification and purification of cellulose acetate. The synthesis of cellulose acetate was carried out by adding glacial acetic acid to the delignified paper, then adding acetic anhydride and sulfuric acid in the acetylation process to produce triacetate cellulose products, then the product was reacted with water to reduce the degree of substitution so that the resulting product was cellulose diacetate. The temperature variations used are 30, 40, 50 and 60 oC with time variations of 90, 120, 150, and 180 minutes. The product is then filtered and washed until neutral using distilled water. The resulting cellulose acetate was then analyzed for acetyl content, degree of substitution, and FTIR test. From the results of the research, the best acetyl levels and degrees of substitution were obtained at a temperature of 60 C and a time of 180 minutes, namely 39.46% and DS 2.42. The characteristics of cellulose acetate with FTIR of the functional group indicated the presence of cellulose acetate compounds with a sharp peak in the C = O ester group of the acetyl group with a wave number of 1622.13 cm-1 and the appearance of an O-H group from cellulose with a wave number of 3549 cm-1 and 3404. cm-1. Cellulose acetate produced from this research is a solid like white flour
Evaluasi Kinerja Turboexpander (KE -5601) Berdasarkan Kondisi Minimum Feed Di Unit 56 LPG Plant PT Perta Arun Gas Zuraihan, Zuraihan; Ridwan, Ridwan; Suryani, Suryani
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 2, No 1 (2023): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v2i1.4968

Abstract

A turboexpander is an escrow and compressor connected in a process. The turboexpander rotates at high speed by utilizing gas expansion in the expander and gas compression in the compressor. The compressor-expander consists of wheels at each end that are gassed. The gas flow at high speed will rotate the shaft connected to the end of the compressor part. The purpose of this paper is to calculate the efficiency of equipment that is able to maximize the separation process between methane and ethane, and simulate flow and pressure variations to see changes in efficiency. The method used is to take the measured output value from the tool in the form of flow rate, pressure and temperature. Based on the calculation results obtained η=77%, HpExpander=2619.40 Horsepower, shaft speed=5220.76 rpm, and QLoss=22%.
Emulsifier Dari Minyak Pliek U Dengan Reaksi Gliserolisis Menggunakan NButanol Sebagai Co-Solvent Dan Katalis MgO Maulana, Teuku Ryan; Faridah, Faridah; Salmyah, Salmyah
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 2 (2023): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i2.4682

Abstract

Emulsifiers or emulsifying agents are one of the oleochemical products that have high economic value. One of the alternative ingredients that can be used as emulsifiers is Aceh palm oil (pliek u oil). In this study n-Butanol solvent is used which can increase the solubility of oil in glycerol so that the glycerolysis reaction can be carried out at low temperatures. This study aims to determine the effect of temperature and solvent ratio on the emulsifier produced. The catalyst used in the reaction is MgO (4% of oil weight), where the test variables used are reaction temperature (70, 80, 90, and 100◦C), 2 hours contact time, and the ratio of n-butanol to oil ( 1: 1, 1: 2, 1: 3 and 1: 4 v / v). The analysis was carried out in the form of an analysis of decreased levels of free fatty acids (ALB) by acid-base titration and Hydrophilic Lipophilic Balance (HLB) analysis to determine the type of emulsifier produced. The results showed that the greatest decrease in free fatty acid levels was found in the solvent to oil ratio of 1: 4 (v / v), and the temperature of 100◦C was 91.26%. The resulting HLB value of 19.68 is categorized into oil in water (o / w). The results obtained from this study indicate that pliek oil can be used as raw material for making emulsifiers using n-Butanol solvent and MgO catalyst.
Pembuatan Briket Biomassa Berbahan Baku Kulit Pisang Kepok dan Kulit Pisang Raja dengan Aditif Tempurung Kelapa Rahmadita, Ahmad Fata
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 2, No 2 (2024): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v2i2.5464

Abstract

Energy sources that promise to replace our dependence on fossil fuels include biomass waste sources. This study studied the characteristics of biobriquettes from variations of kapok banana peels plus coconut shells and variations of plantain peels added coconut shells with variations in the addition of tapioca adhesive. This study was designed with fixed variables of variation in raw material composition with a sample of 90:10; 80:20; 70:30 (grams) and tapioca adhesive composition 10; 20; 30; 40; 50 (%). Banana peels that have dried naturally are then carbonized with a temperature of 300°C -350°C for 3 hours. The process of making biobriquettes begins with the crushing of charcoal and filtering charcoal grains so that a grain size of 60 mesh is obtained. Then the charcoal is mixed between kapok banana peel charcoal and plantain with coconut shell charcoal with a variation of 90:10; 80:20; 70:30 (grams) then the variation of the charcoal mixture is mixed with tapioca flour as an adhesive with variation 10; 20; 30; 40; 50 (%). Then formed biobriquette dough, then molded with a pressure of 100 kg / cm2 and dried under the hot sun. Furthermore, the charcoal is characterized by 5 parameters, namely moisture content, ash content, bound carbon content and calorific value test and compressive test. The best results for banana kepok obtained from this study were in a sample of a mixture variation of 70:30 grams with a variation of a 20% tapioca adhesive mixture. With a moisture content value of 6.95%, ash content of 16.6%, bound carbon content of 60.45%, calorific value of 6,539.04 cal/g and a compressive test value of 86.98 kg/cm2. The best results for plantains obtained from this study were in samples of mixed variations of 70:30 grams with variations of tapioca adhesive mixtures of 50%. With a moisture content value of 7.09%, ash content of 15.8%, bound carbon content of 62.31%, calorific value of 5,415.14 cal/g and a compressive test value of 89.69 kg/cm2. The results obtained in this study for water content, ash content and bound carbon content have not met, then for calorific values and compressive tests have met SNI 01-6235-2000 standards, which are ≥ 5,000 cal / g.
Ekstraksi Kurkumin Dari Rimpang Kunyit (Curcuma Longa) Sebagai Pewarna Alami Pada Komestik Blush On Menggunakan Pelarut Ethanol Artikanabila, Cut; Diana, Selvie; Dewi, Ratni
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 2 (2023): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i2.4687

Abstract

Turmeric contains chemicals that are benefical for the health of the body and can be used for making cosmetics. This study aims to make blush on cosmetics from natural ingredients with some benefits that not only increase external beauty but also nourish the skin from within by utilizing the natural color of the turmeric plant. Turmeric extraction was carried out using ethanol as a solvent using the maceration method. Maseration is done for 3x24 hours. This study used variations in the concentration of turmeric extract as mush as 4ml, 6ml, 8ml and 10ml with variations in the concentration of talcum as much as 0gr, 0.5gr, 1gr, 1.5gr and 2gr. The testing that has done includes flavonoid test, pH values, irritation test and organoleptic test. The results of this study showed us that the best blush on with a composition of 8ml turmeric extract with 0.5gr talc has a positive flavonoid value, a pH value is 4.9 compatiable according to the pH of face skin, which 4.6-7, an irritation test value of 0 indicates that the blush on does not irritate the skin and the organoleptic test results have an average color value of 4.2, and average aroma of 4.3 and an average texture of 4.0.
Pupuk Organik Cair Dari Limbah Padat Penyulingan Sereh Mudarakna, Fathara; Salam, Abdul Haris
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 1 (2022): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i1.3699

Abstract

Fertilizer is one of the components needed by plants to get additional nutrients so that they can grow well and are not susceptible to disease. There are various types of plant fertilizers on the market and most of them are chemical fertilizers with inorganic synthetic content. The content is thought to be not good for health when applied to food plants in excess. Meanwhile, organic fertilizers are safer for humans because they consist of organic ingridients. Liquid organic fertilizer can be interpreted as a fertilizer that is formed naturally through a fermentation process that results in decay. In this study, the sample used was citronella waste as the main raw material obtained from the distillery. The fermentation method used is anaerobic. Based on the results of fermentetion carried out for 23 days, the pH of organic fertilizers was found to be in the range 4-5.39 where the range was still in accordance with the standard range of 4-8. The temperature is at room temperature with an averege of 30.8˚C. The levels of macronutrients produced have not yet reached the standard. Based on the results of the study, it can be concluded that the use of citronella waste alone cannot achieve the required levels of macro nutirents. Additional fermentation time as well as other components are suggested to get different results
Karakteristik Fruit Leather Buah Pala (Myristica fragrans) Dengan Variasi Jenis Hidrokoloid Gel Dzakiah, Dzakiah; Imelda, Fenny; Saniah, Saniah; Narsih, Narsih
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 2, No 1 (2023): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v2i1.4969

Abstract

Fruit leather is a processed food product from pulp of fruit flesh that has been crushed with the addition of stabilizer then dried in a mold using an oven, so as to form a thin sheet that can be rolled up. The raw material for fruit leather can come from fruits such as nutmeg flesh. The purpose of this study was to determine the physical and chemical characteristics of fruit leather from nutmeg flesh with a variation of 0.3% hydrocolloid gel (CMC, pectin and carrageenan). Parameters observed included color, texture, water content, and pH. The results showed that the physical characteristics of the fruit leather of nutmeg flesh with the addition of carrageenan had a texture value of 0.12 kg/mm2 and a color with an *L value of 27.45; the value of *a is 6.03; the value of *b is 13.20. While the chemical characteristics have a water content value of 22.37% and a pH of 3.56. The addition of CMC has a texture value of 0.28 kg/mm2 and a color value with a *L value of 30.78; the value of *a is 5.94; the value of *b is 12.41. While the chemical characteristics have a water content value of 19.03% and a pH of 3.51. The addition of pectin has a texture value of 0.23 kg/mm2 and a color value of *L, which is 31.02; the value of *a is 5.77; the value of *b is 12.31. While the chemical characteristics have a water content value of 16.61% and a pH of 3.33.
Pembuatan Karbon Aktif Dari Limbah Pelepah Kelapa Sawit (Elaies Guineesis Jacq.) Sebagai Media Peyerapan Ion Logam Fe Air Sumur Menggunakan Aktivator Asam Fosfat (H3PO4) Andriansyah, Ricky; Elwina, Elwina; Suryani, Suryani
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 2 (2023): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i2.4683

Abstract

Oil palm (elaies) is a tropical plant that is widely found in Indonesia. The increasing production of this plant has an impact on the increasing amount of oil palm frond waste every year. During this time, the community only utilizes the fruit for the manufacture of CPO while the fronds are discarded and become waste. Palm frond waste contains constituent components in the form of cellulose and lignin so that it has the potential to be utilized as an adsorbent. The manufacture of activated carbon is carried out with the stages of carbonization and activation using H3PO4. The finished activated carbon was then tested for moisture content, ash content, and iodine absorption according to SNI 06-3730-1995, functional group analysis testing with Fourier Transform Infra Red FTIR and Fe metal ion absorption test in well water using an AAS spectrophotometer. From these tests, 7% moisture content, 4% ash content and 909.45 mg/gr iodine absorption were obtained. FT-IR testing obtained 11 fungal groups and Fe metal absorption using an AAS spectrophotometer obtained 77%, so it can be concluded that the activated carbon made is in accordance with SNI 06-3730-1995 specifications
Optimasi Injeksi Trisodium Phosphate Pada Air Suplai Boiler Di Unit 4 PLTU Nagan Raya Menggunakan Design Expert Metode Pendekatan Response Surface Bok-Behnken Lubis, Fadhil Ramadhan
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 2, No 2 (2024): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v2i2.5466

Abstract

In the steam power plant industry, supporting facilities commonly called BOP (Balance of Plant) include Coal Handling, Ash Handling and WTP (Water Treatment Plant). TSP Trisodium Phosphate is one of the chemicals in water treatment. Besides functioning as a cleaner, TSP also functions to precipitate magnesium, iron, and silica and is able to help maintain the pH value of boiler water. Therefore, this activity was carried out to optimise chemical injection in the water treatment process for boiler water with good quality so as to produce steam with good quality as well. From the analysis results, the optimum injection of chemicals is 0.462 ppm TSP (Trisodium Phosphate) resulting in a pH value of 9.279, SiO2 (Sillicon dioxyde) 64.5 ppb, and Na+ (Sodium) 0.719 ppb.
Pengaruh Konsentrasi Sari Buah Kurma (Phoenix dactylifer) terhadap Mutu Minuman Jeli Karika Kurma Subagyo, Sabilla Haibati; Azni, Intan Nurul
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 2, No 1 (2023): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v2i1.4965

Abstract

Karika is one of the typical fruits of Dieng, Wonosobo, Central Java. Karika has a high water content, so it is included in the fruit that does not last long when stored fresh. Characteristics of Karika fruit which is sour and slightly bitter and has sap that can cause itching, making Karika unpalatable to be consumed directly. To increase the usability of Karika fruit, food diversification is carried out by making Karika kurma jelly drink with the addition of Sukkari date juice as a sugar substitute sweetener. This study aims to examine the effect of the concentration of date palm juice (Phoenix dactylifera) on the quality of Karika kurma jelly drink. This type of research is an experimental study with a completely randomized design (CRD) with one factor and five levels of three repetitions. The data obtained were analyzed using ANOVA at level α 0.05 if there was a significant difference, then the Duncan Multiple Range Test (DMRT) was continued. The ANOVA test results showed that all parameters were significantly different. The more addition of the concentration of Sukkari date juice causes an increase in the value of viscosity, total dissolved solids, pH and total sucrose sugar, and decreases the value of syneresis. The results showed that the best treatment was the addition of 27.5% concentration of Sukkari date palm extract with a viscosity characteristic of 1204.67 Cps, total dissolved solids 8.53 (ºBrix), syneresis for 24, 48 and 72 hours respectively of 0 .18%, 0.32% and 0.52%, pH levels were 4.92, and sucrose levels were 2.93. The quality scores for color, aroma, taste and texture were 2.88 (dark yellow), 3.41 (rather strong), 3.19 (slightly sweet), and 2.81 (slightly chewy) with hedonic ratings like the parameters color, aroma, taste and texture.

Page 2 of 5 | Total Record : 46

 1   2   3   4   5 

Filter by Year

2022 2025


Reset
Filter By Issues
All Issue Vol 4, No 1 (2025): Desember Vol 3, No 2 (2025): Juni Vol 3, No 1 (2024): Desember Vol 2, No 2 (2024): Juni Vol 2, No 1 (2023): Desember Vol 1, No 2 (2023): Juni Vol 1, No 1 (2022): Desember