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Jurnal Sains dan Teknologi Reaksi
Published by Politeknik Negeri Lhokseumawe
ISSN : 1693248X     EISSN : 25491202     DOI : http://dx.doi.org/10.30811/jstr
Core Subject : Science, Education, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Materials Science & Nanotechnology
Jurnal Sains dan Teknologi Reaksi atau boleh disingkat dengan nama JSTR, berfokus pada banyak Aspek Teknik Kimia, seperti: Teknik Reaksi Kimia, Teknik Kimia Lingkungan, Energi Fosil dan Terbarukan, serta Sintesis dan Pengolahan Material.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 30 Documents
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Search results for , issue "Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI" : 30 Documents clear
UTILIZATION OF ARABICA COFFEE WASTE (coffea arabica) AS AN ADDITIVE IN THE PRODUCTION OF AROMATHERAPY CANDLES (scanted candle) USING PARAFFIN AND STEARIC ACID AS RAW MATERIALS Auliza, Wulan
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6091

Abstract

ABSTRACTAromatherapy candles are an alternative application of aromatherapy through inhalation, producing aromas that provide therapeutic effects when burned. They serve as alternative medicine, decoration, and room fragrance. The purpose of creating aromatherapy candles is to enhance home decor while supporting a healthy living aroma through the therapeutic process. This research was conducted to formulate and test the physical properties of aromatherapy candles using a combination of stearic acid and additives (coffee). Natural materials that can be used for making aromatherapy candles include coffee grounds. Physical property tests were carried out, including organoleptic tests, burn time tests, flame height tests, and melting point tests. The best research result for stearic acid was 6 grams in sample 1 with 30 grams of coffee grounds. The best result for flame height was 2 grams in sample 1 with 10 grams of coffee grounds, and the best melting point result was 30 grams of coffee grounds with a melting point of 50-58°C. This research was conducted according to the SNI standard for aromatherapy candles. Keywords: Aromatherapy Candles, Essential Oil, Paraffin, Stearic Acid
THE EFFECT OF CRITICAL PARAMETERS ON THE OIL SEPARATOR VESSEL (102D1) TO REDUCE THE VALUE OF FATTY ACID ESTER (FAE) IN THE GLYCERIN WATER PRETREATMENT UNIT AT PT. DOMAS AGROINTI PRIMA Siswanto, Rudi; Salmyah, S; Harunsyah, H
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6151

Abstract

ABSTRACTGlycerin water produced from the hydrolysis process in the splitting column still contains impurities such as oil or fatty acids that are carried along with glycerin water or other impurities found in the raw oil itself such as solid particles and gum. Oil or fatty acids that are still present in glycerin water must be removed or lowered to the maximum permissible limit before further processing in glycerin evaporation units and glycerin distillation units. The quality standard set for glycerin water is the value of fatty acid ester (FAE) in glycerin water. Glycerin water will be treated first in the glycerin water pretreatment unit to remove the oil and fatty acid content. Oil separator vessel (102D1) is one of the tools in the glycerin water pretreatment unit, is one of the important ones to control in the glycerin water pretreatment unit. Where in this oil separator vessel there will be an initial separation between oil and fatty acid with glycerin water. Optimization of separation in oil separator will determine the decrease in FAE value in (102D1) treated glycerin water end product. Observations were made on the oil separator vessel, namely temperature and pH to see both parameters of this process against the decrease in the value of fatty acid ester, data collection for temperature and pH was carried out 3 times a day for 6 days for each still paremeter to determine the value of fatty acid ester. From the observed data on the oil separator device, there are two parameters that determine the separation of oil and fatty acid from glycerin water, namely temperature and pH. The results obtained that temperature and pH greatly affect the value of fatty acids, where the higher the temperature, the lower the FAE value, from the observation data the optimum temperature is 90 – 95 oC. pH also greatly affects the value of fatty acid ester after oil separator, where the clover's pH is low in its fatty acid ester value. From the observed data, the optimum pH is pH 2 – 3.5Keywords: Fatty Acid Ester, Oil Separator, Pretreatment Glycerin Water, pH, Temperatur
THE INFLUENCE OF YLANG-YLANG ESSENTIAL OIL (cananga odorata) AND VIRGIN COCONUT OIL (VCO) ON THE CHARACTERISTICS OF HAND & BODY LOTION Febrina, Sarah
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6092

Abstract

ABSTRACT This study aims to explore the influence of ylang-ylang essential oil (Cananga odorata) and virgin coconut oil (VCO) on antioxidant, antibacterial, and organoleptic properties in the production of hand body lotion. Ylang ylang oil is known for its various health benefits, including antioxidant and antibacterial properties, while VCO is increasingly popular as a functional food oil with anti-inflammatory and antimicrobial properties. The methods used include distillation to produce essential oil, followed by physical characteristic analysis and effectiveness testing. Lotion formulation was conducted with varying proportions of essential oil and VCO. Tests conducted include antioxidant testing using the DPPH method, bacterial testing to determine antibacterial effectiveness, and organoleptic testing to evaluate the fragrance and moisturizing properties of the lotion. The research results showed that lotion formulations with specific proportions of ylang-ylang essential oil and VCO produced significant antioxidant activity, with IC50 values indicating strong antioxidant potential. In addition, bacterial tests showed that the lotion was effective in reducing bacterial colony counts, meeting microbial contamination standards according to SNI. Organoleptic test results showed a positive preference from panelists for the fragrance and moisturizing properties of the lotion, with some samples receiving excellent ratings.Key words: Essential Oil, Ylang-Ylang Flower, Virgin Coconut Oil (VCO), Hand Body Lotion, Antioxidant, Antibacterial, and Organoleptic Testing.
THE EFFECT OF STORAGE TIME AND ORIGIN OF RAW MATERIALS ON CPO QUALITY IN FFA, LAUNDRY AND MOIST PARAMETERS IN PKS INTI GUNA NABATI Munandar, Iqbal Haris; Fachraniah, F; Sariadi, S
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6164

Abstract

ABSTRACTIndonesia is currently the largest palm oil producer in the world with a production of around 3,855,000 tons/year in 2023. This study discusses the potential and quality of palm oil based on the duration of fruit storage (1, 2, 3, 4, 5, 6 and 7 days). The research was carried out from November to December 2023, at PT Inti Guna Nabati, Sarolangun, South Sumatra. The parameters measured for oil potential are crude palm oil (CPO) content, and the quality of palm oil measured is the bleaching regression index (DOBI), free fatty acid content, and moisture content from northern FFB suppliers (Rasau B2 Pamenang Village, Merangin District) and southern FFB suppliers (Setia Marg Village, Muara Lakitan District). Free fatty acids are determined by titration, and moisture content is measured with an electronic moisture analyzer. The purpose of this study is to find out the quality of the two FFB suppliers that are good and suitable for further processing at PKS IGUN. It will be better to bring FFB 1-2 days after harvest directly to the mill because the quality still meets the criteria of the IGUN mill. The results of the study show that the quality potential of FFB is the longer it is stored, the higher the FFA level, the lower the moist, the lower the DOBI. Based on the results of the study, the length of fruit storage has a bad effect on the quality of palm oil. Based on the results of CPO research from Rasau B2 Pamenang Village, Merangin District for FFA 2.13, moist 1.00 and DOBI 1.712, while the results of CPO research from Setia Marga Village, Muara Lakitan District are FFA 2.48, moist 0.47 and DOBI 1.681. Of the two research results, the CPO results from Rasau B2 Pamenang Village, Kec are better.Keywords : palm oil, FFA, laundry, moist
THE PRODUCTION OF SWEET BREAD SAFE FOR DIABETICS REFERRING TO SNI 01-3840-1995 Safitri, Pipit
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6093

Abstract

ABSTRACT Sweet bread for diabetes is whole wheat bread rich in fiber, B vitamins, and phytochemicals. The content of whole wheat flour and corn flour has a lower glycemic index, which helps manage blood sugar levels. The production of sweet bread involves variations of palm sugar in amounts of 10, 20, 30, 40, and 50 grams, as well as variations in whole wheat and corn flour. Testing to ensure the bread is suitable for consumption includes tests for moisture content, ash content, microbial contamination, and organoleptic tests. From the test results, the moisture content in sample 7, using whole wheat flour with 10 grams of palm sugar, was 27.18%, while sample 16, using corn flour with 5 grams of palm sugar, had a moisture content of 28.80%. The best ash content results were found in sample 7 with whole wheat flour and 10 grams of palm sugar, yielding 0.40%, and sample 16 with corn flour and 5 grams of palm sugar, yielding 0.20%. The organoleptic test results were satisfactory, as indicated by blood sugar checks in diabetic patients, and the best microbial contamination test result was scored at 4.Keywords: Bread, Diabetes, Palm Sugar, Whole Wheat Flour, Corn Flour.
FORMULATION AND CHARACTERISTICS OF SOLID PERFUME FROM LEMONGRASS OIL WITH VARIATION BEESWAX AND ESSENTIAL OIL Yunus, Muhammad; Amalia, Zuhra; Ridwan, R; Aida, Atiqah; Ilmi, Awanis
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6171

Abstract

ABSTRACT The potential availability of abundant essential oil plants in Indonesia is very beneficial for the community. One of the essential oil plants that can be utilized for its potential is citronella. Citronella oil can be formulated into solid perfume as an innovation to replace liquid perfume. This study aims to formulate and characterize solid perfume from various variations of beeswax concentration (30%, 40%, 50%), citronella (1%, 3%, 5%) and several note parfume. The solid perfume was characterized by observing the density value, boiling point value, organoleptic test and functional group test. The results showed that the highest density value of 0.9786 gr/ml and the melting point value of 69°C were in the 50% beeswax formulation and 1% citronella oil concentration. The lowest solid perfume density value of 0.9350 gr/ml and melting point value of 61°C were in the 30% beeswax formulation with 5% citronella oil concentration. FT-IR testing results, the solid perfume produced has the same functional groups in the mixture of raw materials made. This indicates that no new compounds are formed. The results of organoleptic testing show that solid perfume with 40% beeswax composition and 1% concentration is the most preferred. Keywords: Solid Perfume, Citronella Oil, Beeswax, Density
APPLICATION OF BIODRYING TECHNOLOGY IN THE PROCESSING OF BRIQUETTES FROM ORGANIC WASTE IN LHOKSEUMAWE CITY Nurkuzaifi, Muhammad; pardi, p; Putra, Alfian
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6094

Abstract

ABSTRACT Waste is unwanted waste material after the end of a certain process. There are various processes that can be applied to produce dry waste using biodrying technology. The purpose of this study is to study biodrying technology for the processing of organic waste in Lhokseumawe City to become briquettes and the length of the biodrying process on the quality of briquettes produced from EM4 variations. This study used two independent variables, namely 14 and 21 days of biodrying process and EM4 variations, namely 100 ml, 200 ml, 300 ml, 400 ml and 500 ml. The results of this study show that those that meet the SNI No.1/6235/2000 standard are only ash content testing, volatility content and flame length test, while the moisture content test does not meet SNI No.1/6235/2000 standard.Keywords: Organic waste, biodrying and SNI No.1/6235/2000.
Utilization of Polyurethane with Bentonite-Chitosan Filler As an Anti-Corrosion Paint Izzati, Isra Adelya; Rihayat, Teuku; Putra, Alfian
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6148

Abstract

ABSTRACTIn this study, the manufacture of polyurethane uses bentonite-chitosan filler materials to improve the ability of heat resistance. The characteristics carried out were assessed in terms of functional group analysis, heat resistance analysis, morphological structure analysis, corrosion test and paint thickness test. The coating process has the advantage of being able to protect the iron surface from environmental influences that result in corrosion of the metal. This study aims to see the effect of mixing polyurethane with Bentonite-Chitosan filler. The sample formulation used was polyurethane with variations of bentonite and chitosan of 2%, 4%, 6%, 8%. The results of the Fourier Transform Infra Red (FT-IR) test showed that there were functional groups N-H, C-H, C=O. Based on the results of the Thermogravimetry Analysis (TGA) test, the Polyurethane sample with 8% bentonite modification : chitosan 8% b/b had the best thermal stability among other samples where the sample began to degrade (on set) at a temperature of 307.04 (oC) and stopped degrading (end set) at a temperature of 399.50 (oC). In the Polyurethane sample with 2% bentonite modification/8% chitosan b/b had lower thermal stability where the sample began to degrade (onset) 293.09(oC) and stopped degrading (end set) at 348.32(oC). The results of the morphological test using SEM tools showed that the chitosan chain was well dispersed into the bentonite interlayer. The corrosion test showed that the addition of bentonite and chitosan affected the corrosion rate, the greater the composition of bentonite and chitosan, which could reduce the corrosion rate. The best sample with a ratio of Polyurethane/Bentonite/Chitosan 8:8 % b/b experienced the smallest corrosion rate of 5.79 mpy and mass loss of 0.10 grams.Keywords : Biodegradable, Corrosion, Polyurethane, Bentonite, Chitosan
UTILIZATION OF ACTIVATED CARBON FROM COCONUT SHELLS IN THE BLEACHING PROCESS OF CRUDE PALM OIL (CPO) Novrizal, Yedil; Sari, Ratna; adriana, A
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6088

Abstract

CPO (Crude Palm Oil) is the result of processed palm fruit in the form of crude oil so that it needs to be refined so that it can be used by consumers, one of the purification processes of CPO (Crude Palm Oil) is to use the bleaching process. The purpose of this study is to determine the effect of activated carbon size, temperature and bleaching process time on the crude palm oil (CPO) produced. This study used three independent variables, namely the size of activated carbon (120/150, 150/180 and 180/200) mesh and bleaching temperatures of 150oC, 160oC, 170oC and bleaching times of 50 minutes, 60 minutes and 70 minutes. The results showed that the higher the temperature and time in the bleaching process, the lower the level of free fatty acids in CPO both in the size of activated carbon (120/150, 150/180 and 180/200) mesh. In activated carbon, the ash content did not meet the SNI 06-3730-1995 standard while the moisture content met the standard. For CPO (Crude Palm Oil) after the bleaching process, the  best results were obtained at a particle size of 120/150 mesh with a temperature of 170oC and a time of 70 minutes. Keywords: Crude palm oil (CPO), activated carbon, and bleaching
EFFECT OF PRE HEATER AND ECONOMIZER ADDITION ON ACID VALUE IN SPLITTING UNIT AT PT ENERGI OLEO PERSADA Mubarak, Salman; Rahmawati, Cut Aja; Nurdin, Irwan
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6199

Abstract

ABSTRACT Temperature Problems and Stability of Fatty Acid Quality Become One of the Important Factors in the Occurrence of Hydrolysis in a Splitting Reactor Where Quality Instability Often Occurs in the Fat Splitting Hydrolysis Process, The Addition of Pre Heater and Economizer Provides a Significant Acid Value Stability Impact Judging From the Results of Analysis Conducted Within 12 Hours of Hydrolysis Process Time. With Several Temperature Variations Starting From 110 - 120 OC, Optimum Acid Value Conditions Are Obtained at 120 OC with the Maximum Acid Value Results at Acid Value 208.08. The combination of the addition of Pre Heater and Economizer can increase the efficiency of continuous steam use that can reduce production costs and ensure the stability of the temperature of the material that will enter the splitting reactor, the temperature can be varied to adjust the required heat needs in order to achieve a more perfect hydrolysis by considering economic aspects.Keywords: Preheater,Economizer, Acid Value, Hidrolisa, Splitting

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