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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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PENGARUH KONSENTRASI PELARUT ETANOL DAN SUHU MASERASI TERHADAP RENDEMEN DAN KADAR KLOROFIL PRODUK ENKAPSULASI EKSTRAK SELADA LAUT (Ulva lactuca L) Ni Nyoman Desi Trisna Dewi; Luh Putu Wrasiati; Gusti Putu Ganda Putra
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 4 No 3 (2016): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

This research were aimed to 1) investigate the effect of ethanol concentration and temperature of maceration to rendement and chlorophyll content of sea lettuce extract powder, 2)investigate how the effect of ethanol concentration and temperature of maceration to rendement and chlorophyll content of sea lettuce extract powder. This experiment used randomized block design with 2 factors. The first factor was the ethanol concentration consists of 3 levels namely 70%, 80% and 90%. The second factor temperature of maceration consists of 4 levels namely 30 ± 2oC, 45± 2oC, 60 ± 2oC and 75 ± 2oC. Variables observed were rendement, chlorophyll acontent, chlorophyll b content and total chlorophyll content. The result showed that ethanol concentration and temperature of maceration had high significantly effect on chlorophyll acontent, while did not affect on rendement. Interaction between ethanol concentration and temperature of maceration had high significantly effect on chlorophyll b content and total chlorophyll content. Ethanol concentration 90% with temperature of maceration 45 ± 2oC had the highest characteristic of sea lettuce extract powder at 27,08 % rendement, 97,07 ppm chlorophyll a content, 246,53 ppm chlorophyll b content and 306,28 ppm total chlorophyll content Keywords : encapsulation, sea lettuce, ethanol concentration, temperature of maceration, Ulva lactuca L
Pengaruh Suhu dan Lama Ekstraksi dengan cara Maserasi terhadap Karakteristik Pewarna dari Ekstrak Alga Merah (Gracilaria sp.) Novia Esterulina Purba; Lutfi Suhendra; Ni Made Wartini
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 (188.15 KB) | DOI: 10.24843/JRMA.2019.v07.i04.p01

Abstract

Red algae (Rhodophyta) contains vitamins, minerals, fiber, sodium, potassium and bioactive compounds in the form of secondary metabolites and the most important nutrients are pigments.This study aims to determine the effect of temperature and length of extraction by maceration on the characteristics of dyes from red algae extract (Gracilaria sp.) spand determine the best temperature and maceration time to produce the color extract of Gracilaria sp. This study used Factorial Randomized Block Design. The first factor is temperature which consists of 3 levels namely 30±1°C, 40±1°C, 50±1°C. The second factor is maceration length which consists of 3 levels, namely 24 hours, 30 hours and 36 hours. Each treatment was grouped into 2 based on the time of implementation so that 18 units of experiment were obtained. The variables observed were yield, phycoeritrin, color intensity and effectiveness test. The data obtained were then analyzed by variance analysis and test Tukey’s. The results showed that the treatment of temperature, maceration time and interactions between treatments had a very significant effect on yield, phycoerythrin, brightness (L*), redness level (a*) and yellowness level (b*). The temperature of 30±1°C and the maceration time of 30 hours is the best treatment to produce dyes from red algae extract (Gracilaria sp.) with the characteristics of yield 0.496 ± 0.001%, phycoerythrin 0.430 ± 0.006 mg/g, lightness (L*) 20.470 ± 0.141, redness level (a*) 21.790 ± 0.198 and yellowish level (b*) 12.205 ± 0.035. Keywords: temperature, length of maceration, color, phycoeritrin, Gracilaria sp.
THE CHARACTERISTICS OF COFFEE POWDER QUALITY IN TREATMENT FERMENTATION TIME AND TEMPERATURE IN MEDIUM KOMBUCHA TEA Fitri Aprilia Pratiwi; Anak Agung P.A. Suryawan Wiranatha; Sri Mulyani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 3 No 1 (2015): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

The purposes of this study were: 1) to determine the effect of fermentation’s time and temperature of coffee in the medium of kombucha tea on the characterictics of coffee’s quality, and 2) to determine the appropriate fermentation’s time and temperature of coffee in the medium of kombucha tea to produce the best quality coffee. The research was undertaken by using a Randomized Factorial Block Design experiment with two factors, namely (i) fermentation’s time (12, 24, and 36 hours), and (ii) fermentation’s temperature (22±1 o C, 26±1 o C, 30±1 o C). The research results show that the treatment of 24 hours of fermentation’s time and the fermentation’s temperature of 30±1 o C has the best result. This treatment produced the coffee with the coffee’s characteristics, as follow: 0.088% ash content; pH 5.84, organoleptic taste 5 (typical coffee), flavour 5.3 (typical coffee to very typical coffee), and overall acceptance 5,35 (mostly like to like). This treatment also produced the organic acids as follow: oxalic acid (0.086±0.000% to 0.089±0.001%), ascorbic acid (0.139±0.003% to 0.281±0.004%), lactic acid (0.193±0.062% to 0.160±0.003%), malic acid (0.539%±0.000% to 0.560±0.003%), acetic acid (0.752±0.007% to 0.789±0.006%), propionate acid (1.134±0.000% to 1.142±0.001%), and butyric acid (2.281±0.051% to 2.573±0.001%). Key Words: coffee, kombucha tea, fermentation, organic acid
STRATEGI PENGEMBANGAN PRODUK AGROINDUSTRI PADA AREA BELANJA Di AGROWISATA CAU CHOCOLATE FACTORY Ni Made Trisnayanti; I Ketut Satriawan; I Wayan Gede Sedana Yoga
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 7 No 2 (2019): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.584 KB) | DOI: 10.24843/JRMA.2019.v07.i02.p06

Abstract

Agrotourism is a tourist activity that involves the use of agricultural land or related facilities that attract tourists. The increasing number of agrotourism will have implications for the level of competition that is increasingly high among agrotourism. The high competition is one of the factors to carry out product development strategies. The objectives purpose of this study are: 1) to find out the types of agroindustry products sold in the shopping area in agrotourism, 2) determine which agroindustry products are most popular with tourists in the shopping area, 3) to formulate alternative strategies and set priorities for agroindustry product development strategies. This research was conducted at Cau Chocolate Factory Agrotourism. This study uses the SWOT method to determine the alternative strategies used, and TOPSIS to rank these alternatives. The strategy that can be applied in Cau Chocolate Factory Agrotourism is a intensive strategy, the priority of the chosen strategy is 1) expanding the marketing of chocolate products, 2) promoting processed chocolate products to social media, 3) strengthening cooperation with suppliers and between tourism actors and similar companies. Keywords: Agrotourism, Agroindustry, SWOT, TOPSIS, Chocolate Factory
PENGARUH JENIS PELARUT PADA METODE MASERASI TERHADAP KARAKTERISTIK EKSTRAK Sargassum polycystum Irena Savitri; Lutfi Suhendra; Ni Made Wartini
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 5 No 3 (2017): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Sargassum polycystum is one of the type of brown algae that has potential as an antioxidant and natural dye. The aims of this study were to know the effect of solvent type to the characteristic of Sargassum polycystum extract on maseration method and to determine the best solvent for Sargassum polycystum extract on total phenol, total carotenoids, and color intensity. The experiment in this study used Randomized Block Design with single factor. The solvent’s type factor consisting of 5 solvent, namely methanol, ethanol, acetone, isopropyl alcohol, and ethyl acetate. The experiments are grouped into 4 groups based on the time of implementation, in order to obtain 20 units of experiments. Objective variables observed are rendement, total phenol content, total carotenoids content, and color intensity. The result showed that the type of solvent affected significantly (P<0,01) on rendement, total phenol, total carotenoid, brightness level (L*), and yellowish level (b*), but did not affect on redness level (a*). Ethyl acetate is the best solvent to produce Sargassum polycystum extract with 0,91% rendemen, 2,61 mgGAE/100g total phenol content, total carotenoid content about 0,23%, and color intensity with brightness level (L*) 5,17, redness level (a*) -3,00 and yellowish level (b *) 37,28. Keywords:solvent, extract characteristic, Sargassum polycystum.
PENGARUH SUHU DAN KONSENTRASI ENZIM AMILOGLUKOSIDASE PADA PROSES SAKARIFIKASI PRODUKSI GULA CAIR PATI UBI GADUNG (Dioscorea hispida Dennts) I Komang Putra Adnyana; Amna Hartiati; I Wayan Arnata
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 3 No 2 (2015): Juni
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

The experiment was carried out to determine the effect of amyloglucosidase concentration and temperature of saccharification process on the characteristics of liquid sugar and to find out the best characteristics of liquid sugar from yam potato starch. This study used a split plot experimental design with two treatment factors. The main plot was the saccharification temperature which consists of three levels, namely 55°C, 60°C and 65°C. Amyloglucosidase enzyme concentration as the subplot consisted of three levels ie 1500 U/kg of starch, 2500 U/kg of starch and 3500 U/kg of starch. In this experiment obtained 9 combinations for each experiment was repeated 2 times and obtained 18 experimental units. The results of liquid sugar were then analyzed their moisture content, ash content, degree of sweetness, and sensory test color. The results showed that the addition of enzyme amyloglucosidase with different concentrations significantly affected the degree of sweetness and gave a very significant effect on the color of liquid sugar and no significant effect on moisture content and ash content. The difference treatment of saccharification temperature significantly affected the water content, the degree of sweetness and color and no gave significant effect on ash content of liquid sugar. Interaction between treatments significantly affected the degree of sweetness, very significant effect on the color and no significant effect on moisture content and ash content of the resulting liquid sugar. The treatment with the addition of enzyme amyloglucosidase with concentration of 2500 U/kg starch and temperature of saccharification 55°C produced the best characteristics of liquid sugars from starch of yam potato is the best characteristics with moisture content (57.63%), ash content (0.66%), the degree of sweetness (48.00°Brix), and sensory test color (2.13
STABILITAS KADAR KAROTENOID EKSTRAK BUAH PANDAN (Pandanus tectorius) PADA CAHAYA DAN SUHU PENYIMPANAN Made Gabhina Aryayustama; Ni Made Wartini; Ni Putu Suwariani
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 6 No 3 (2018): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.215 KB) | DOI: 10.24843/JRMA.2018.v06.i03.p05

Abstract

Carotenoid extract of pandanus fruit has some deficiencies that are easily damaged by acid, light, and high temperatures. The aim of this study was to know the best treatment of light and temperature to maintain the stability of the pandanus fruit extract during storage. The experiment in this study used Completely Randomized Design with two factors. The first factor was light that consisted of two levels: dark and bright. The second factor was storage temperature that consisted of three levels: 4±3?C, 28±3?C and 45±3?C. The results showed that the treatment of 4±3?C in dark condition had the best treatment to maintain the stability of pandanus fruit extract with the smallest decrease of carotenoid 13,47% during 4 weeks of storage. Keywords : Pandanus fruit extract, carotenoids, light, temperature, stability
PENGARUH SUHU DAN LAMA PEMANASAN EKSTRAKSI TERHADAP RENDEMEN DAN MUTU ALGINAT DARI RUMPUT LAUT HIJAU Sargassum sp I Wayan Angga Sukma; Bambang Admadi Harsojuwono; I Wayan Arnata.
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 5 No 1 (2017): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

The purpose of this study was to determine the effect of temperature and heating times of extraction and their interactions to the yield and quality of alginate from seaweed green Sargassum sp, determine the temperature and duration of heating extraction of the right to produce a high yield and the best quality alginate from seaweed green Sargassum sp. This study uses a Randomized Block Design (RBD) factorial treatment comparison of temperature and heating times extraction (60;5, 60;10, 60;15, 70;5, 70;10, 70;15, 80;5,80;10, 80;15, 90;5, 90;10, 90;15) are grouped into 2 treatment so obtained 24 experimental units. The variables measured in this study is the yield, moisture content, ash content, viscosity, pH, and the functional group (FTIR). The results showed that the extraction temperature alginate significant effect on yield and moisture content, duration of heating extraction very significant effect on ash content, temperature and duration of heating extraction and its interactions very significant effect on the viscosity, the functional groups, except for pH. Temperature 80°C and heating times extraction of 15 minutes to produce alginate best with 1,95% yield characteristics, 8,51% moisture content, ash content of 8,92%, viscosity 16 cp, pH 5,50. Alginate extraction results obtained interpretations are hidroxyl functional groups (O-H), group alkanes (C-H), a triple bond (C?N), carboxyl group (-COOH), and a fingerprint region mannuronic. Keywords: Green Seaweed Sargassum sp, Extraction alginate
PENERAPAN METODE QUALITY FUNCTION DEPLOYMENT DALAM UPAYA MEMENUHI KEPUASAN PELANGGAN TERHADAP LAYANAN PESAN ANTAR PIZZA (Studi Kasus pada S2 Pizza, Bali) A.A. Putri Cahaya Tyasdela; I Ketut Satriawan; A.A.P.Agung Suryawan Wiranatha
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 3 No 3 (2015): September
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

Improvement and development of the quality of services such as delivery order at the restaurant is now a public concern. The purpose of this study are: (1) to determine the attributes that necessitated by the customers about  delivery order service; (2) to measure the level of customers interest on the quality of delivery order service and (3) to measure the level of customers satisfaction on the quality of delivery order service. This study used Quality Function Deployment (QFD) method. The results showed that there are 21 attributes of consumer interests necessitated by the consumer with a very important criterion. The highest consumer interest was attributes of food hygiene and beverages. The level of customer satisfaction with all consumer interest attributes of S2 Pizza were varying from usual/neutral to very satisfied. S2 Pizza needs to gives special attention to the attributes of customers complaint response, the identity of the restaurant's name on the shirt, jacket, and vehicles, and attributes of employees appearances of (cleanliness and tidiness).
Cover dan Daftar Isi Vol. 6 No. 1 Maret 2018 Admin JRMA
JURNAL REKAYASA DAN MANAJEMEN AGROINDUSTRI Vol 6 No 1 (2018): Maret
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology, Udayana University

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Abstract

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