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INDONESIA
E-jurnal Agro-Industri Indonesia
ISSN : 22523324     EISSN : -     DOI : -
Core Subject : Engineering,
e-JAII Series is a quad-annual national referred journal with the objectives to disseminate, explore, develop, and elucidate the knowledge of engineering design and technology in agro-industrial development issues, to keep practitioners and researchers informed on current issues and best practices, as well as serving as a platform for the exchange of ideas, knowledge, and expertise among academician, technology researchers and practitioners. e-JAII Series provides an opportunity to share detailed insights from different understandings and practices associated with technology. It provides cross-disciplinary exchange of insights and ideas regarding value and practices for dissemination. e-JAII Series will publish your work to national society of practitioners and researchers with interest in technology design and development from a wide variety of agro-industrial sectors.
Arjuna Subject : -
Articles 31 Documents
EVALUASI LAYANAN PELANGGAN BERBASIS QUALITY FUNCTION DEPLOYMENT (QFD) STUDI KASUS: PT. MITRA NASIONAL KUALITAS, JAKARTA (E-Jurnal Agro-Industri Indonesia), Hasti Purnasari, Taufik Djatna dan Hartrisari Hardjomidjojo
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
Publisher : E-jurnal Agro-Industri Indonesia

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Abstract

ABSTRACT Facing the problem of market condition dan competition shifting, lack of sufficient information about customers’ needs dan firm competencies are challenges to business organizations. Customers have requirements that they do not reveal dan causing the firm’s failure of meeting the customers’ satisfaction. Therefore, firms need to manage their relationship toward customer, so as to gain a better customer insight by implementing the Customer Relationship Management approach. This research is aiming at evaluating service quality to meet customer’s satisfaction dan planning an improvement for service quality based on customers’ judgment at Mitra Nasional Kualitas Jakarta, Ltd using Quality Function Deployment concept. The voice of customers is identified using questionnaire dan translated into service requirements by building a House of Quality matrix. In the end, evaluation results show that these service attributes: suitableness of limit order dan special discount for loyal customer got improvement proportion point as 1.7 dan indicate these service attribute have not met the customers’ satisfaction yet. The service recovery can be done by improving the quality of staffs’ service attitude, performance of office staff dan distribution staff dan goodness of information flow as well.                 Keywords: CRM, house of quality, QFD, service quality, voice of customers.
PENGGUNAAN SELULOSA MIKROBIAL DARI NATA DE CASSAVA DAN SABUT KELAPA SEBAGAI PENSUBSTITUSI SELULOSA KAYU DALAM PEMBUATAN KERTAS (E-Jurnal Agro-Industri Indonesia), Khaswar Syamsu, Renny Pespitasari dan Han Roliadi
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
Publisher : E-jurnal Agro-Industri Indonesia

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Abstract

ABSTRACT   Currently, the majority of the world’s pulp and paper is manufactured from raw materials, either wood from industrial forest plantations or natural forests. The rate deforestation in Indonesia increases by 2% per year. The study was conducted to combine microbial cellulose of nata de cassava and coconut husk to reduce the use of wood cellulose in manufacturing pulp and paper. Two factors of experiment are the addition of additives and a combination of microbial cellulose and pulp of coconut husk (100:0, 75:25, 50:50 and 25:75). The yields of microbial cellulose and of coconut-husk pulp were consecutively (dry basis) 80.03% and 39.72%.  Physical and strength properties of paper varied, i.e. water content (7.22-10.46%), grammage/basis weight (53.72-68.56 g/m2), tensile index (0.003-0.029 kNm/g), tear index (2.58-16.59 mNm2/g), brightness (8.15-35.1%), printing opacity (45.99-97.08%), and Cobb size60 (46.79-168.17 g/m2 for the smooth/upper surface; and 28.22-183.92 g/m2 for the rough/lower surface). The result of the analysis assuming the conversion of biomass to paper made with 50% pulp of nata de cassava and 50% pulp of coconut husk indicated that the expansion of production of 200 ha can substitute 8,808,356.438 trees per year. With the ammount of this saving trees, 1,233,169.901ton CO2 from the air can be absorbed each year.   Keywords: Nata de cassava, coconut fiber, paper, biomass conversion analysis
AN ANALYSIS AND DESIGN OF DECISION SUPPORT SYSTEMS FOR SUGAR CANE HARVESTING (CASE STUDY IN PT. RAJAWALI II UNIT PG. JATITUJUH, MAJALENGKA) Machfud, Aldian Farabi dan
E-jurnal Agro-Industri Indonesia Vol 1, No 1 (2012): E-Jurnal Agroindusri Indonesia
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Abstract

ABSTRACT   PT. Rajawali II Unit PG. Jatitujuh is the company which process sugar canes become first quality Super High Sugar (SHS I). The harvesting of sugar cane has been done on summer in order to gain optimum yield. Daily scheduling of sugarcane has been done in order to fulfill the raw material of factory continously. This scheduling has been done toward the sugarcane field with area of 11.921,56 ha and spread on the 2.418 of swath.  Nowadays, the scheduling of daily harvesting has been decided through Harvesting Forum Meeting(Rapat Forum Tebang) based on age of sugar canes, the highest yield, and subjectively actual condition of sugar canes field. This method is still done manually with separated database system. Axe DSS 1.0 is a support system to make decision in harvesting of sugar canes with real-time refers to modificated T-Score method. The decision support system (DSS) is developed based on Unified Modelling Language (UML) which consists of case diagram, activity diagram, class diagram, and statechart diagram. Axe DSS uses java programing language which consists of 3 sub-system, which are harvesting sample, analysis result, and daily harvesting. Input of this system are data cane planted last year, preface analysis, actual condition of sugar canes fields and factory. Then the data is managed with cane sugar analysis calculation and modify T-Score calculation. While ,the output of this system are sample field, analysis result, and next day harvesting cane schedule. This prototype has several advantages which are faster decision-making, flexible, automatic report printing, and faster data storing and searching compare with manual decision-making.   Keywords: DSS, realtime, scheduling, sugarcane, T-Score, UML
KARAKTERISASI KONDISI OPERASI DAN OPTIMASI PROSES PENGOLAHAN AIR LIMBAH INDUSTRI PANGAN (E-Jurnal Agro-Industri Indonesia), Lintang Zulqaida Fitrahani, Nastiti Siswi Indrasti dan Suprihati
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
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Abstract

ABSTRACT   Increased production in companies will result in the increase the load of the existing wastewater treatment plant. To anticipate the future increase in the COD load, it is in need to characterize dan optimizize the existing wastewater treatment plant. Objectives of this research were characterization of operating conditions, measurement of performance as well as optimization of a food wastewater treatment plant to increase the effluent quality and minimize cost of operating cost.This study was conducted in a food industry in Jakarta. Characterization of the physical installations performed against all operation units that include the unit process physical, biological, and chemical processes. Performance evaluation was carried out using secondary and primary data covering NH4+, phosphate, nitrate, TSS, turbidity, temperature, pH, COD, MLSS, and DO. It was indentified that the biological stage was need to be optimizd especially in the nutrient addition. Almost all units there are differences between condition actual and design that lead to lower efficiencies. It was identified that the optimum nutrition added on Monday was 7 kg/day of urea, 26 kg/day of phosphate as well as 8 kg/day of nutrition liquid. The optimum nutrition added on Thursday was 32 kg/day urea, 45 kg/day phosphate and 8 kg/day nutrition liquid. By implementen these recommendations it can be expected a cost saving by 50%.   Keywords: food industry, nutrient addition, operating conditions, performance optimization
PREDIKSI PERBAIKAN LAYANAN MENGGUNAKAN METODE ANALISIS BERTAHAN (SURVIVAL ANALYSIS) (STUDI KASUS PT. MITRA NASIONAL KUALITAS JAKARTA) (E-Jurnal Agro-Industri Indonesia), Taufik Djatna, Hartrisari Hardjomidjojo dan Tanti Meylani
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
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Abstract

ABSTRACT Keeping customer satisfaction is important to keep customer loyalty which can be done by implementing Customer Relationship Management (CRM). CRM has main objective to increase customer retention through increase customer satisfaction. Giving the appropriate service can gain customer satisfaction. The appropriate service given based on customer’s assesment on service variabel importance rate. In addition, service evaluation was done by implementing survival analysis method, to got information about the decline of customer satisfaction based on customer retention. The objectives of this research were to assess service variables important to customer. Then, prediction was needed to build a service recovery based on survival analysis component which were retention curve, hazard curve dan survival curve. The research in Mitra Nasional Kualitas, Ltd Jakarta, resulted in customer assess on reliability and assuranceattributes from service variable wasvery important. The decline of retention rate and survival rate and also the incline of hazard rate indicate that the firm need to do service recovery.   Keywords: Customer Relationship Management, Survival Analysis, Service Variable 
PEMBUATAN LABEL/FILM INDIKATOR WARNA DENGAN PEWARNA ALAMI DAN SINTETIS (E-Jurnal Agro-Industri Indonesia), Endang Warsiki dan Citra Dewi Wahyono Putri
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
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ABSTRAK   The development of colored label indicator is increasingly necessary to ensure food safety with a rapid method to evaluating historical real-time of the freshness of the product. The objective of this research is to design labels/film color indicator with natural and synthetic dyes. In this study, the label/film indicators was made of chitosan as a film base and natural dyes of rosella flower, bit fruit and red spinach leaf extract as dyes. This indicator label sware compared with labels made of synthetic dyes. Evaluation the performance of the label in color changes during storage as visual looking was tested  The results showed that natural dyes are very sensitive to temperature, thus it is not appropriate if in the film making, it involves a process that uses high temperatures. Unfortunately, in general, chitosan film typically used a temperature of 70oC to disolve and homogenize the flour of chitosan. Furthermore, natural dyes are also sensitive to acid. As a result, the addition of acetate acid in the chitosan film is undesirable on the filming. Process synthetic dyes provide constant color film. The changing of color in the films with synthetic dyes can be occured due to changes in pH. Therefore, this film/label is very suitable to be applied for products which is decreased in pH if it is deterioration, such as fruits or dairy product.   Keywords : Film/label, color indicator, chitosan, natural dye, synthetic dye
APPLICATION VEGETABLE OIL AS A COATING ON THE FREEZ SLICES CARROT (Daucus carrota) AND THE QUALITY CHANGES DURING STORAGE Chilwan Pandji, Priska Wisudawaty, Sugiarto dan
E-jurnal Agro-Industri Indonesia Vol 1, No 1 (2012): E-Jurnal Agroindusri Indonesia
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ABSTRACT Carrot is highly perishable commodity due to respiration. This process can decompose the macro molecule into carbon dioxide, water, and other micro molecule. This decomposing will lead to softening of tissue. This damage could be reduced by fast freezing and then stored under frozen. The research was aimed to  know the effect of freezing time and the kind of oil used as coating on color, texture, weight loss and total dissolved solids of the slice carrot during storage. The result of this study showed that oil gave significant effect on the quality of carrot. The best oil for coating was corn oil that gave weight up to 0.06%, total dissolved solid in the range 4 to 6 brix, color of 67 till 69 Hue, violence in between of 1.30 and 3.50 mm/s, and it was favored by consumers even after 54 day storage.                                                                                                                Keywords : coating, frozen carrot, oil
OPTIMASI PRODUKSI BIODIESEL DARI BIJI JARAK PAGAR MELALUI TRANSESTERIFIKASI IN SITU MENGGUNAKAN METODE RESPON PERMUKAAN (E-Jurnal Agro-Industri Indonesia), Ika Amalia Kartika dan Yuyun Pujiastuti
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
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  ABSTRACT Energy consumption increases when human activity increases. Today, the energy supply is mainly focused on fossil fuel which its availability is limited and the price increases continuelly. There is thus a need to develop the alternative energy such as biodiesel. The objective of this study is to determine the optimum process conditions to produce biodiesel from jatropha seeds by in situ transesterification using respon surface method (RSM). The variable of process conditions used was reaction time (A) (45, 50 and 55oC) and hexane to total solvent ratio (B) (1/6, 2/6 and 3/6), while the respon (y) observed included biodiesel yield, acid value, saponification value, viscosity and ash content. Reaction time, stirring speed and KOH concentration were respectively fixed at 3 h, 500 rpm and 0,075 mpl/L methanol. Regression analysis showed that first order polynomial equation, y = 74,98 + 1,20 A – 2,71 B (R2 = 89,87%) was significant to optimize the influence of reaction temperature and hexane to solvent ratio on biodiesel yield. The influence of hexane to solvent ratio on biodiesel yield was more significant then that reaction temperature. Biodiesel yield increased as hexane to solvent ratio decreased. The influence of variable A and B on biodiesel quality, especially saponification value and viscosity, was significant. Highest biodiesel yield (78,60%) was obtained under process conditions of 55oC reaction temperature and 1/6 hexane to solvent ratio. Biodiesel quality under such process conditions was acid value of 0,66 mg KOH/g, saponification value of 195 mg KOH/g, ash content of 0,0% and viscosity of 3,70 cSt.                                                                                                                Keyword: biodiesel, transesterification in situ, jatropha, response surface method
PENGARUH WAKTU REAKSI DAN RASIO HEKSAN/TOTAL PELARUT TERHADAP RENDEMEN DAN KUALITAS BIODIESEL PADA PROSES TRANSESTERIFIKASI IN SITU BIJI JARAK PAGAR (E-Jurnal Agro-Industri Indonesia), Fitriyana Ayu Aprilyanti dan Ika Amalia Kartika
E-jurnal Agro-Industri Indonesia Vol 1, No 2 (2012): E-Jurnal Agroindustri Indonesia
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Abstract

ABSTRACT   The increasing of human demand about diesel fuel that was not balanced with the appropriate of petroleum production caused global crisis of energy. Under these conditions, biodiesel is a promising alternative fuel to replace petroleum-based diesel. Jatropha curcas L. can be used as an alternative energy resource because it contains 30-40% oils. Jatropha curcas L. is a plant that can be easily growned in Indonesia, so it is prospective as raw material for biodiesel. The purpose of this study was to determine the influence of reaction time and hexane to total solvent ratio on biodiesel yield and quality produced by in situ transesterification of jatropha seeds. The used raw material was grounded jatropha seeds with moisture content of < 2% and ± 20 mesh size. The operating conditions of hexane to total solvent ratio and reaction time were varied at 1/6, 2/6, 3/6 and 3, 4, 5 h, respectively. KOH concentration, reaction temperature and stirring speed were fixed at 0.075 mol/L methanol, 55oC and 300 rpm. The analysis of biodiesel quality included acid value, viscosity, ash content and saponification value. The results were analyzed with Response Surface Method (RSM). The produced biodiesel yield was 71%-81%. The highest yield (80.67%) and the best quality of biodiesel were obtained under operation condition of the 5 h reaction time and 1/6 hexane to total solvent ratio (acid value of  0.31 mg KOH/g, saponification value of 193.97 mg KOH/g, viscosity of 3.45 cSt, and ash content of 0%). Respon surface analysis of hexane to total solvent ratio and reaction time variables to respon of biodiesel yield resulted first order equation, Y =  63.00– 4.14(A) + 3.81(B), with R2= 95.56%. The variable of reaction time (B) had significant influence on biodiesel yield. Respon surface analysis of operating condition variables to respon of biodiesel quality showed the variable of hexane to solvent ratio (A) and reaction time (B) had significant influence on acid value and viscosity, especially.   Keywords: biodiesel, jatropha, in situ transesterification, reaction time, solvent ratio 
ANALYSIS OF PAPER DEFECT REDUCTION IN PAPER INDUSTRY WITH LEAN SIX SIGMA APPROACH Sukardi, Fika Aras Ardita dan
E-jurnal Agro-Industri Indonesia Vol 1, No 1 (2012): E-Jurnal Agroindusri Indonesia
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ABSTRACT   The high number of the defective product that occur in each company can affects the quality. PT. X is a company engaged in the pulp and paper product. Lean approach does not allow for waste, in this case is defective product. Product defects that often arise in this  industry are holes paper, dirty paper, folded, size variations and foreign contamination. The purpose of this study is to identify the causative factor in the production department of a product defect based on six sigma phase and the solution  that can be taken to reduce the number of defects in the production department based. The phases of six sigma are define, measure, analyze, improvement and control. The results of calculation of the value of sigma of perforated paper for two months was 3.45 and 3.47. Dirty paper has a sigma value of 4.2 and 4.5. The sigma level indicates that the performance of the productionis above average Indonesian company. The costumer complaint coming into the company for  folded paper, size variations and foreign contamination has decreased from 2010 to 2011. But it has not reached the six sigma target. So that, the company  needs to be  improved using the Lean tool that is  Kaizen Blitz.     Keywords : defective product , paper , six sigma, lean, kaizen blitz

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