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SAINTI: Majalah Ilmiah Teknologi Industri
Published by Politeknik ATI Padang
ISSN : 18297404     EISSN : 26139871     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering
SAINTI: Majalah Ilmiah Teknologi Industri merupakan majalah ilmiah yang diterbitkan oleh unit penelitian dan pengabdian masyarakat Politeknik ATI Padang. Jurnal SAINTI terbit secara berkala yakni persemesteran atau 2 kali dalam 1 tahun yaitu pada bulan Juni dan Desember. Jurnal SAINTI mempublikasikan hasil karya ilmiah dan pemikiran Dosen dan Civitas Akademika serta praktisi industri
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 122 Documents
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DESIGN EMPLOYEE DATA MANAGEMENT INFORMATION SYSTEM AT PT. SEMERU KARYA BUANA Kristianto, Fesa Putra; Puspitaningsih, Fitri Indah; Salsabila, Sobrina Aisya
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 21, No 2 (2024): VOL 21 NO 2 DESEMBER 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v21i2.279

Abstract

The rapid development of technology in the era of globalization has led to significant advancements, with information systems being one of the innovations that facilitate information management. PT. X, a manufacturing company in the furniture sector, faced specific challenges in managing personnel administration, such as data input errors and payroll delays due to the use of conventional methods like Microsoft Excel. This resulted in inefficiencies and errors that affected the company's operations. This research designed an employee data management information system at PT. X with the aim of creating an effective and efficient system to assist administrators in processing employee data. The Rapid Application Development (RAD) method was used in the development of this system. The resulting application can be used by the HR department as administrators and by employees as users. The implementation results show that the new system effectively addresses the existing issues, with significant improvements such as reducing data input errors and increasing the speed of payroll processing compared to the previous method. From the user questionnaire results, both system quality and interface design received positive feedback, and the information system can be successfully applied at PT. X.
PENENTUAN KADAR ASAM LEMAK BEBAS DALAM PRODUK RBD OLEIN DAN RBD STEARIN PADA PROSES FRAKSINASI Sari, Risma; Azahra, Fauziah
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.268

Abstract

Palm oil is producer a vegetable oil can be relied upon, because the resulting oil has various superiority compared with oil resulting by other plants. Palm oil quality is determined of some parameter among other is a free fatty acid. Measuring a free fatty acid (FFA) determined by using a method alkalimetri. RBD Stearin is a faction solid fat which come from RBDPO (Refined Bleached and Deodorized Oil) who has experienced refined complete.this stearin is white and has a smell like the smell of oil. RBD Olein is a faction liquid fat which come from RBDPO (Refined Bleached and Deodorized Palm Oil) who has experienced refined, olein is also be called with cooking oil which has a golden yellow color. Of the analysis result is a available a free fatty acid degrees RBD Olein 0.0771 % and RBD Stearin 0.0775 % of the analysis results is available have met the spec PORAM.
ANALISA OIL LOSSES PADA MESIN PRESS DENGAN MENGGUNAKAN METODE STATISTICAL PROCESS CONTROL PADA INDUSTRI KELAPA SAWIT DI SUMATERA BARAT Guntur, Guntur; Zulhamidi, Zulhamidi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 18, No 1 (2021): VOL 18 NO 1 JUNI 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v18i1.304

Abstract

One of the industries that processes FFB (Fresh Bunches) into crude oil or also called Crude Palm Oil (CPO) and palm kernel or also called kernel in West Sumatra. In carrying out the production process, we always prioritize quality and always optimize the results of Crude Palm Oil (CPO) and kernel processing results. One of the ways to get optimal results is to reduce oil loss during the production process. From the data obtained, the analysis of press machine oil loss will be carried out using statistical process control (SPC) methods. After analyzing the oil loss at the press station, it was found that the oil loss analysis was not statistically controlled. Next, from this analysis, the cause of the problem that causes the loss of oil at the press station is sought. The cause of the problem is the work environment, people, work methods, raw materials and machines. Next, after the root of the problem is found, the author gives suggestions for improvement to each root of the problem found.
PENGARUH PENAMBAHAN NATRIUM HIPOKLORIT (NaOCl) TERHADAP MIKROBA PADA AIR LIMBAH DENGAN METODE MEMBRANE FILTER Riani, Pevi; Hidayana, Hijratul
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 20, No 2 (2023): VOL 20 NO 2 DESEMBER 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v20i2.238

Abstract

This research was conducted to determine the effect of adding sodium hypochlorite (NaOCl) on the number of E. coli and Total Coliform bacterial colonies in industrial wastewater using membrane filters. The prepared wastewater is added with NaOCl with concentration variations 0 ; 0.5 ; 1 ; 1.5 ; 2 ; 3 ; 4 ; 5 ppm. The vacuum pump and filter membrane are placed in laminar air flow and the filtration process is carried out. The filtered membrane paper was placed into a petri dish containing CCA agar media and incubated for 24-48 hours at a temperature of 35oC with the petri dish upside down. Reddish pink colonies indicate colonies of Coliform bacteria, while dark blue or violet colonies are colonies of Escherichia coli bacteria. The results showed that the number of E. coli bacteria at NaOCl concentrations of 0 ppm to 5 ppm was 0 cfu/100 mL and Total Coliform was obtained at NaOCl concentrations of 0 ; 0,5 ; 1 ; 1,5 ; 2 ; 3 ; 4 dan 5 ppm is cannot be Calculated, 96 ; 74 ; 53 ; 31 ; 19 ; 3 and 0 cfu/100 mL.
ANALISIS PENGENDALIAN KUALITAS CRUDE PALM OIL: STUDI KASUS INDUSTRI PENGOLAHAN KELAPA SAWIT JAMBI Anjasmi, Arie Yuniken; Zulhamidi, Zulhamidi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 18, No 2 (2021): VOL 18 NO 2 DESEMBER 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v18i2.295

Abstract

One of the industries involved in palm oil processing. PKS in Jambi process fresh fruit bunches (FFB) and do not always produce crude palm oil (CPO) according to the standards set by the company. The CPO produced by the company is damaged due to various factors. So SPC will be used as a tool in analyzing CPO quality control in one of the PKS industries in Jambi. The causes of high free fatty acids are many factors, including poor fruit acceptance due to defects, less strict fruit sorting. Weather factors that cause fruit to take a long time in the garden or unloading field. Slippery roads cause fruit to get stuck on the road for days. The proposal to improve the quality of CPO is to implement quality control starting from the arrival of raw materials, until the final process of TBS processing which is the distribution process of CPO in storage tanks. The main improvement that the company needs to do is to focus on the factors that cause the problem of quality decline, namely the raw material factor, the machine factor and the human factor that processes CPO.
PENGARUH SUBTITUSI MILK CHOCOLATE DAN MARGARIN TERHADAP MUTU PISANG SALE GORENG LAPIS COKELAT Hasni, Dian; Abubakar, Yusya’; Azhari, M. Rizky
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 18, No 1 (2021): VOL 18 NO 1 JUNI 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v18i1.276

Abstract

Pisang sale is a semi-moist food made from fresh bananas by drying and/or smoking with or without the addition of preservatives. In the city of Banda Aceh, a fairly well-known processed pisang sale is fried pisang sale with a large production volume. Coating pisang sale with chocolate is an innovation that can improve the quality and acceptance of pisang sale by consumers. This study aims to obtain the optimum formulation of chocolate coating material to be applied to fried pisang sale, as well as its effect on the physicochemical quality and sensory quality of the resulting chocolate-coated fried pisang sale. This study was conducted using a factorial Randomized Block Design with compound chocolate substitution factors of dark chocolate variants with milk chocolate (S) and the addition of margarine (M). Chocolate substitution consists of two levels, namely S1 = 10% (milk chocolate) and S2 = 20% (milk chocolate). The addition of margarine (M) consists of three levels M1 = 0%, M2 = 7.5% and M3 = 15% of the total weight of the dough. Repetition was carried out 3 times so that 18 experimental units were obtained. The analysis conducted was melting point analysis and organoleptic analysis including hedonic and descriptive tests. The results showed that the addition of margarine significantly affected the melting point (˚C) and panelists' acceptance of the aroma of pisang sale (descriptive), color (hedonic) and taste (hedonic) of the resulting chocolate fried pisang sale. The melting point of the resulting chocolate had an average temperature of 37.61˚C. Organoleptically, the aroma of pisang sale (descriptive) had a rather weak-neutral aroma, color and taste (hedonic) ranged from neutral to like. The taste of pisang sale was neutral (descriptive), had a rather strong chocolate taste (descriptive) and a neutral-like taste (hedonic).
ANALISIS BEBAN KERJA FISIK OPERATOR PADA BAGIAN PROSES PRODUKSI AIR MINUM DALAM KEMASAN DENGAN MENGGUNAKAN PENDEKATAN FISIOLOGIS PADA INDUSTRI AIR MINUM DALAM KEMASAN Saputra, Rinaldi; Maryam, Maryam
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 17, No 2 (2020): VOL 17 NO 2 DESEMBER 2020
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v17i2.309

Abstract

One of the industries operating in the field of bottled drinking water (AMDK) in West Sumatra, in its production process, involves many workers or production operators, including water filling, packaging and lifting. Through interviews with several workers, it was found that the work of filling water, packing and lifting is quite heavy compared to other jobs. In order to measure the operator's physical workload, two methods will be used objectively, namely the direct method and the indirect method, as well as using the Nordic Body Map (NBM) questionnaire to determine disease complaints. After measuring, the results of the study show that the average value of Energy Expenditure for morning work is 8.65 kcal/minute (heavy workload) and for evening work is 11.74 kcal/minute (very heavy workload). The average value of energy consumption is 3.92 kcal/minute and has not exceeded the standard energy consumption limit for men which is 5 kcal/minute. In calculating the CVL percentage of operators, the average CVL percentage was found to be 41.69%, which means that the working conditions need to be improved. Based on the NBM questionnaire, it was concluded that the highest complaints were in the left shoulder, right shoulder, left arm, right arm, left calf, right calf, left leg and right leg, which are parts directly related to the operator's working position.
UJI BIODEGRADASI PLASTIK BIODEGRADABEL DARI LIMBAH POLIPROPILENA DAN PATI BIJI DURIAN SEBAGAI BAHAN PENGISI Pelita, Elda; Hidayani, Tengku Rachmi; Nirmala, Dyah
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 14, No 2 (2017): VOL 14 NO 2 DESEMBER 2017
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v14i2.264

Abstract

This research was conducted with the aim to produce a biodegradable plastic from waste plastic polypropylene mixing with the starch of durian seeds by adding maleic anhydride as a crosslinking agent, and benzoyl peroxide as initiator. In this study, carried out with a variety of ingredients are added with a certain ratio that is successively waste Polypropylene, starch from durian seeds, maleic anhydride and benzoyl peroxide are (94:6:1), (94:6:1:1), (94:6:2:1), (94:6:3:1). Biodegradable plastic in the characterization of the analysis with the ability to decompose in nature biodegradable test, with embedding samples of biodegradable plastic produced into three types of soil, namely normal soil, ground litter and sand for 1 month. Each sample was observed a decrease in mass every 10 days. From Biodegradabel in nature results obtained mass loss that has been grown for 1 month is on the ground litter by 9.08% in the sample by varying the composition (94:6:1:1).
PEMANFAATAN KONDENSAT STEAM UNTUK HEATING AIR HANGAT PADA PLATE HEAT EXCHANGER DI PLANT PKO FRAKSINASI COCOA BUTTER SUBSTITUTE Caniago, Mitha Fitriani; Youfa, Rita
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 18, No 2 (2021): VOL 18 NO 2 DESEMBER 2021
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v18i2.300

Abstract

One of the companies operating in the palm oil processing industry uses steam as a heating medium in its process equipment. There is an energy-saving initiative in place that involves recovering steam condensate to heat warm water through a Plate Heat Exchanger (PHE) unit. The heat exchange in the PHE occurs in a counter-current manner with a target water temperature of 40°C (set point). The heating process is conducted in a circulation loop where the steam condensate enters the PHE to heat the warm water, and the output is then returned to the condensate storage tank before re-entering the PHE. This study analyzes the energy recovery process of the heat contained in the condensate for heating purposes. Based on observations, the steam condensate can raise the water temperature to the set point. However, using condensate for water heating takes longer compared to using steam. Additionally, in terms of quantity, a higher condensate flow rate is required compared to steam heating. Utilizing steam condensate as a heat source can reduce steam consumption, thereby lowering production costs at the PKO plant.
PENGARUH PROSES PENGERINGAN TERHADAP NILAI PLASTISITAS RETENSI KARET REMAH Akli, Khairul; Febrian, Aby; Samah, Selfa Dewati; Maryam, Maryam
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 20, No 2 (2023): VOL 20 NO 2 DESEMBER 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/sainti.v20i2.237

Abstract

The crumb rubber SIR 20 originating from the processing of natural rubber (Hevea brasiliensis) plays a crucial role as a primary export commodity in the Indonesian economy. Due to its diverse applications in consumer products and medical devices, natural rubber possesses unique properties such as resilience, elasticity, and wear resistance. The drying process of natural rubber at high temperatures significantly affects its plasticity and strength. This research explores the influence of temperature (130-155°C) and drying time (77-110 minutes) on the plasticity of crumb rubber SIR 20. The results indicate that the PRI (Plasticity Retention Index) values still meet quality standards within certain ranges. The optimal PRI value of 75-76% is obtained at a temperature of 130-135°C for 77 minutes. Increasing the operating temperature and drying time leads to a significant decrease in PRI values due to thermal oxidation occurring in the molecular structure of rubber, thereby affecting the quality of crumb rubber. The findings from this study on the impact of temperature and drying time can provide technical information for the rubber industry to maintain product quality while minimizing environmental impact.

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