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INDONESIA
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI
Published by Universitas Udayana
ISSN : -     EISSN : 2503488X     DOI : https://doi.org/10.24843/JRMA
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI adalah media publikasi ilmiah yang diterbitkan oleh Program Studi Teknologi Industri Pertanian, Fakultas Teknologi Pertanian-Universitas Udayana, berisikan artikel hasil-hasil penelitian, ulasan (review), opini ilmiah oleh mahasiswa, dosen, praktisi, dan ahli di bidang rekayasa dan manajemen bidang keilmuan Teknologi Industri Pertanian dan keilmuan yang terkait lainnya.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 542 Documents
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NILAI TAMBAH PROSES PENGOLAHAN KOPI ARABIKA SECARA BASAH (WEST INDISCHEE BEREDING) DAN KERING (OST INDISCHEE BEREDING) DI KECAMATAN KINTAMANI, BANGLI Noveliska Br Sembiring; I Ketut Satriawan; I. A. Mahatma Tuningrat
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 3 No 1 (2015): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.77 KB)

Abstract

This study aims to determine the components of the cost of the processing Arabica coffee in wet and dry, to calculate the cost of Arabica coffee processing in wet and dry and to calculate the value -added processing Arabica coffee in the wet and dry. Data collection methods were nonparticipant observation, questionnaires and documentation. Sampling was set at 27 samples. Data processing method used was the grouping of coffee processing cost components, calculate the total cost of processing coffee, rice coffee reduction sale value and the average cost of processing coffee. The results showed that the cost components in the wet coffee processing were raw materials, water, labor, coffee processing machines, and ancillary equipment. Cost components in the dry coffee processing were raw materials, labor, coffee processing machines, and ancillary equipment . Cost of the wet Arabica coffee processing was Rp7340.89/Kg and cost of the dry Arabica coffee processing was Rp4271.58/Kg. The added value of Arabica coffee in the wet processing was Rp770.22/Kg and dry processing was Rp18.59/Kg which means that the wet coffee processing more profitable for farmers.
PENGARUH KONSENTRASI NATRIUM METABISULFIT DAN LAMA PERENDAMAN TERHADAP KARAKTERISTIK BUBUK BUNGA KENIKIR (Tagetes erecta L.) Komang Adi Darmawan; Ni Made Wartini; Luh Putu Wrasiati
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 1 (2019): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (434.433 KB) | DOI: 10.24843/JRMA.2019.v07.i01.p09

Abstract

Marigold powder can be used as natural orange dyes extract of marigold powder contain ?-carotene. The aim of this research was to investigate the effect of sodium metabisulfite (Na2S2O5) concentration and soaking time on the characteristics of marigold flower powder and determine the best treatment of the concentration of sodium metabisulphite (Na2S2O5) and soaking time to produce powdered marigold flowers. This research used factorial randomized block design with 2 factor experiments. The first factor is the concentration of sodium metabisulfite (Na2S2O5) which consists of 3 levels: 2000, 2500, and 3000 ppm. The second factor is the soaking time which consists of 3 levels: 10, 20, and 30 minutes. The results of research showed that the treatment of sodium metabisulfite (Na2S2O5) concentration take effect on water content, total carotenoid levels, brightness (L*), yellowish level (b*), and sulfite residue levels, but no effect to the level of redness (a*). The treatment of soaking time take effect on the levels of sulfite residues but no effect on water content, total carotenoid levels, brightness level (L*), yellowish level (b*), and redness level (a*). Soaking treatment in sodium metabisulfite (Na2S2O5) solution with a concentration of 2500 ppm and soaking time of 10 minutes, is the best treatment to produce marigold flower powder with the characteristics of water content 11,40%, total carotenoid levels of 18.91%, brightness level (L*) 44.19, redness level (a*) 63.80, yellowish level (b*) 56.86, and sulfite residue levels of 182.40 ppm. Keywords : Tagetes erecta L, sodium metabisulfite, carotenoid, color.
PENGARUH LAJU ALIRAN UDARA DAN LAMA FERMENTASI CAIRAN PULPA HASIL SAMPING FERMENTASI BIJI KAKAO TERHADAP KARAKTERISTIK CUKA FERMENTASI Ni Made Mega Suasti Rahayu; G.P. Ganda Putra; Ni Putu Suwariani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 5 No 2 (2017): April
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.127 KB)

Abstract

Vinegar fermentation is a liquid product which containing of acetic acid, and obtained from ingredients that containing of carbohydrate and alcohol. The aims of this study were to determine the effect of air flow rate and time of fermentation on the characteristics of vinegar fermentation from liquid waste of cocoa beans fermentation, and to determine the best treatment which can produces vinegar fermentation from liquid waste of cocoa beans fermentation. The experiments in this study using a Completely Randomized Design (CRD) with two factors. The first factor is the rate of air flow which consists of three levels: 0.50 vvm ?¹, 1.00 vvm ?¹, and 1.50 vvm ?¹. The second factor is time of fermentation that consists of four levels: 10, 15, 20 and 25 days. The results showed that the treatment of air flow rate and interaction of both treatments was affected significantly (P<0.01) on levels of acetic acid content, total sugar and pH levels, but did not effected (P>0.05) on the alcohol content and total suspended solid. Time of fermentation treatment, showed a significant effect (P <0.05) on level of acetic acid content, but did not effected (P>0.05) on the alcohol content and affected significantly (P<0.01) on sugar content, pH, and total suspended solid of vinegar fermentation from liquid waste of cocoa beans fermentation. The best treatment is by using air flow rate, amount 0.50 vvm ?? and fermentation for 25 days, which can produce vinegar fermentation from liquid waste of cocoa beans fermentation that containing 2.64 % (v/v) of acetic acid, 3.30 of pH, 4.30 ?brix of total suspended solid, 0.29 % (v/v) of total sugars and 0.00 % (v/v) of alcohol content.Key words: vinegar fermentation, the air flow rate, fermentation period
PENGARUH LAJU ALIRAN TERHADAP PENURUNAN CEMARAN INSTALASI PENGOLAHAN AIR LIMBAH DOMESTIK DENGAN SISTEM BIOFILTER Ayu Putu Sarasdewi; Nyoman Semadi Antara; A.A.P.Agung Suryawan Wiranatha
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 3 No 2 (2015): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.276 KB)

Abstract

The aim of this study was to reduce ammonia contamination, Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), and Total Suspended Solid (TSS) in the waste water effluent of IPAL using biofilter system. The biofilter system was made of glass tubs containing filter media such as gravel, sand, and zeolite withthickness of 30 cm each. Among filter media was laid by fibers with a thickness of 5 cm. This laboratory scale biofilter system was used to conduct experiment which was design by using a simple randomized block design (RBD). The treatment experimented was the flow rate of wastewater which was consist of four levels, namely 50, 100, 150, 200 ml/min. The results showed that wastewater flow rate variation significantly affected decreasing levels of organic contaminants.The slower rate of wastewater flow haved the faster of time needed to reach steady state conditing. The optimum flow rate to reduce level of organic contaminants of domestic wastewater was 50ml/min. The effectiveness of decreasing the ammonia, COD, BOD, and TSS 91.42%, 74.77%, 52.95%, and 72.76%.
ANALISIS TINGKAT KEPUASAN KONSUMEN TERHADAP KUALITAS PRODUK DAN KUALITAS PELAYANAN DI RESTORAN CEPAT SAJI McDONALD’S CABANG ROBINSON, DENPASAR Gede Paramananda Jentrasaswin; A.A.P. Agung Suryawan Wiranatha; I Ketut Satriawan
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 6 No 2 (2018): April
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.266 KB) | DOI: 10.24843/JRMA.2018.v06.i02.p04

Abstract

Product quality and services have been the most concern of the trade and service. One of the efforts that can be used to improve and maintain the competitiveness of a company is to increase consumer satisfaction. The objectives of this study were 1) to determine the level of consumer interest in the products and services provided by McDonald’s, 2) to analyze the performance of McDonalds company in giving satisfaction to consumer, and 3) to analyze the level of customer satisfaction on products and services. Data collection in this study was done by distributing 255 questionnaires to consumers. Importance Performance Analysis method was used to analyse the effect of quality of the product & service on consumer satisfaction. The results show that consumers were satisfied on the product quality and service provided. The level of consumer satisfaction was 84,64% (satisfied) for the product quality and 83,06% (satisfied) for the service quality. Keywords: Costumer satisfaction, importance performance analysis, McDonald’s
PENENTUAN SUHU DAN SUMBER KARBON TERBAIK PADA PERTUMBUHAN ISOLAT SBJ8 DALAM BIODESULFURISASI DIBENZOTIOFENA Gde Agung Bagus Surya Adnyana; Ida Bagus Wayan Gunam; A. A. Made Dewi Anggreni
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 4 No 4 (2016): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.188 KB)

Abstract

The determined of these research were to knowing optimal of temperature and carbon source of biodesulfurization isolate SBJ8. Isolate growth at Medium MSSF-TD with concentration of 200 ppm DBT in tetradecane which tested various temperature 37?C, 41?C, 45?C. The next step was to determine the best carbon source using glucose, sucrose and citric acid. The result of experiment showed isolate SBJ8 temprature at 37?C and pH 7 with carbon source glucose. In condition SBJ8 could growth (OD660) from 0,765, and 0,411 with DBT degradation rate in tetradecane each 76,7%, and 63,4%. Keyword: biodesulfurization, SBJ8, dibenzothiophene, tetradecane.
Strategi Pengembangan Usaha melalui Peningkatan Kualitas Produk Ice Coconut Long Black di Titik Temu Coffee Shop, Seminyak, Badung Dwiki Firmandiri Natakusumah; A. A. P. Agung Suryawan Wiranatha; I Ketut Satriawan
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 4 (2019): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.764 KB) | DOI: 10.24843/JRMA.2019.v07.i04.p12

Abstract

This study aims to analyze consumer perceptions of the level of importance and performance of companies related to Ice Coconut Long Black products and to develop appropriate strategies for improving the quality of Ice Coconut Long Black products at Titik Temu Coffee Shop, Seminyak, Badung. This study uses a survey method with the distribution of questionnaires, namely an analysis of the importance and performance of Ice Coconut Long Black products and an analysis of the importance of consumers of Ice Coconut Long Black products and competing products namely Coconut Espresso Martini at Missibu Coffee Shop. These analyze use two methods, namely the Importance Performance Analysis (IPA) method and the Quality Function Deployment (QFD) method. In the analysis of the IPA, there are 3 attributes in the first quadrant of cartesius diagram, which is the top priority. Such product taste, product color and product price. While the value of the total suitability obtained is still below 100%, which is equal to 89,15%, which means that the importance of consumers have not been fulfilled by the performance of the company/product. Whereas QFD produces the priority of increasing product attributes starts from the product’s taste because it gets the highest repair ratio value, while the priority of increasing technical parameters starts from controlling the quality of ice cubes, coconut water and espresso because it gets the highest level of technical importance. Keywords: Importance Performance Analysis, Quality Function Deployment, Ice Coconut Long Black
ANALISIS PERAMALAN PENJUALAN PRODUK KECAP PADA PERUSAHAAN KECAP MANALAGI DENPASAR BALI Ni Putu Lisna Padma Yanti; I.A. Mahatma Tuningrat; A.A.P.Agung Suryawan Wiranatha
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 4 No 1 (2016): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.456 KB)

Abstract

Forecasting is an important tool for the company to be more effective and efficient. The purposes of this study were to determine the best forecasting method to forecast sales of soy sauce products, and to forecast sales of soy sauce in the future by using the best forecasting method at the Manalagi Soy Sauce Company in Denpasar. The study used four methods of forecasting, namely moving average, exponential smoothing, linear trend, and non-linear trend. Error level from each method was calculated by of Mean Absolute Deviation (MAD), Mean Squared Error (MSE), and Mean Absolute Percentage Error (MAPE). Results of the study show that the best forecasting method to forecast the sales of soy sauce at Manalagi Soy Sauce Company in Denpasar is trend linier method. This method has the lowest error compare to the other forecasting method, in forecasting sales of soy sauce bottle size 625 ml obtained MAD value of 1.984,54, MSE of 8.850.382,64, and MAPE by 2%, while for forecasting sales of soy sauce refill size 625 ml obtained MAD value of 2440.27, MSE of 8972737.56 and MAPE by 4%. Keywords: sales forecasting, time series method, soy sauce.
Karakteristik Absolut Minyak Atsiri Daun Pandan Wangi (Pandanus amaryllifolius Roxb.) Hasil Proses Re-Ekstraksi Concrete Dengan Etanol Ida Bagus Ananta Wibawa; Ni Made Wartini; I Wayan Arnata
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 2 No 2 (2014): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.13 KB)

Abstract

The purposes of this study were 1) to know the effect of re-extraction of essential oils concrete fragrant pandanus leaves with ethanol at various comparison to the rendement and characteristics of the absolute essential oil fragrant pandanus leaves, 2) determine the ratio of concrete with absolute ethanol produces fragrant pandanus leaf essential oil with the highest rendement and the best characteristics, 3) to know the absolute composition of the essential oil fragrant pandanus leaves produced on the best treatment. This research used a randomized block design, concrete comparison with treatment with ethanol, which consists of 7 levels ; 1:2,1:4, 1:6, 1:8, 1:10, 1:12 and 1:14. There are 3 groups based on the time of implementation. The results showed that the re-extraction using ethanol effect on the rendement and characteristics of the absolute essential oil produced fragrant pandan leaves. Re-extraction using ethanol solvent at 1:8 ratio is the best treatment that produces fragrant pandan leaf essential oil, with rendement of 1.11%, the value of preference for the scent of 6.25 (between like really like) and aroma strength of 2.68 (the most powerful) and composed 17 compounds, 8 compounds have identification which consists of: 21,63% alkanes, alkenes 35,39%, 19,59% ketone and 23,38% not identification
JALUR DISTRIBUSI DAN UPAYA PERBAIKAN PASCAPANEN BUNGA POTONG KRISAN (Dendrathema grandiflora) DARI PETANI DESA PANCASARI BULELENG SAMPAI PENGECER Yohana Putri Lumbantoruan; Bambang Admadi Harsojuwono; Sri Mulyani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 6 No 4 (2018): Desember
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.062 KB) | DOI: 10.24843/JRMA.2018.v06.i04.p03

Abstract

The purpose of this study was 1) to determine the number of chrysanthemum distribution lines and distribution types from farmers in Pancasari to retailers, 2) to find out the system, people, and the impact of chrysanthemum postharvest handling in distribution from farmers in Pancasari to retailers, 3) to determine the impact of improvements postharvest on chrysanthemum damage from farmers in Pancasari to retailers with soaking treatment using sodium metabisulfite solution. The method used is the snowball sampling method in the form of surveys and interviews with the Commodity System Assessment Method (CSAM) application using a questionnaire. Treatment of postharvest repair by soaking the flower stalk in sodium metabisulfite solution. There are two lines in the distribution, lane I (Farmers ? Wholesalers ? Retailer ? Consumer) and lane II (Farmers ? Retailer ? Consumer). Postharvest handling includes harvesting, sorting, binding, wrapping, soaking, storing, packaging, distributing, and displaying. Impact of handling postharvest loss in the sorting stage at the farm level 2% (insignificant), wholesaler level 3% (insignificant), and retailer level 8% (significant) Post-harvest improvement can prolong the duration of freshness of flowers.Using water, chrysanthemum cut flowers can last 2.38 days, using sodium metabisulfite can last 6.25 days. Keywords : Chrysanthemum, sodium metabisulfite, CSAM, postharvest improvements.

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