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Jurnal Teknologi Pertanian
Published by Universitas Brawijaya
ISSN : 14115131     EISSN : 25282794     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT
Jurnal Teknologi Pertanian diterbitkan oleh Fakultas Teknologi Pertanian Universitas Brawijaya untuk penyebarluasan hasil penelitian yang dilakukan oleh para peneliti dari dalam dan luar Fakultas Teknologi Pertanian Universitas Brawijaya. Jurnal Teknologi Pertanian terbit tiga kali dalam setahun, memuat tulisan hasil penelitian yang termasuk dalam lingkup disiplin ilmu pengetahuan yang terkait dengan Ilmu-ilmu Teknologi Pertanian guna menunjang pengembangan ilmu pengetahuan dan teknologi serta pembangunan nasional.
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Articles 578 Documents
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The Effect of Sodium Bikarbonate Immersion and Frying Temperature TowardThe Hardness Value of Cocoyam Chips (Xanthosoma sagittifolium) Putranto, Angky Wahyu; Argo, Bambang Dwi; Komar, Nur
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The major problem that need to be considered in chips product arecrunchiness. The research to get the crispy chips product is generally done by adding a solution of Calcium Hydroxide (Ca(OH)2).However, basically high calciuminCalcium Hydroxide makes a hard texture. Therefore, searched alternatives to make a crunchy texture chips with a low hardness level. The immersion of Sodium Bicarbonate (NaHCO3) as crunchy maker, will produce CO2 gas which is expected to form many pores in cocoyam chips,so the texture of produced chips will be more crisp. To see the quality of chips due to the Immersion of Sodium Bicarbonate (NaHCO3), then do the microstructural studies using Scanning Electron Microscopy (SEM).The results obtained water content and hardness values are lower than previous research, and the best treatment was NaHCO3 soaked concentration of 1 g/L and the frying temperature of 180 °C with the parameters value such as physical parameters; watercontent of 2.636%, hardness value of 0.443 kg/cm2,organoleptic parameters; crunchiness of 6.05, the appearance of 5.30, taste of 5.45, colour 5.40 and the energy needed for frying are 55.323 kJ/kg. Microstructure from SEM showed that immersion of NaHCO3 and frying temperature effected to gelatinization which is characterized byincreasing the average of matrix diameter from 68.51μm (raw material) to 103.07μm and has a diameter bubbles on average 29.19 μm (soaked of NaHCO3 with a concentration of 1 g/L and the frying temperature of 180 °C). Key words : Cocoyam, Sodium Bicarbonate, Scanning Electron Microscopy (SEM)
Effect of Ingredients Formulation Of Mechanics Traits on Organic Planting Bag Nugroho, Wahyunanto Agung; Rahayu, Febi Damayanti; Lutfi, Musthofa
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The use of planting bags of organic materials in the field of agriculture is a solution to problems such as stacking plastic bag after the seedling planting is completed and inhibits plant growth due to wrong release of planting bag. Organic planting bag practices can add nutrients to the soil and has the ability to retain water, which supports the growth and development of plants. The purpose of this study is to modify the organic planting bags that have been developed using material compositions and sizes of planting bag. The research was conducted in two phases, namely the manufacture and testing of organic planting bag. Parameters observed in this study is the water content, vertical pressure testing, tensile testing, volume and mass of planting bag. Based on the results of LSD test showed that the combined treatment of combination treatment A6B6 is best used as an ingredient of organic planting bag where the comparison between coconut husk and water hyacinth at 1:7.25. To test the moisture content value obtained was 82.35%, for testing the vertical pressure is 0007 kg/cm2, and for testing the tensile stress is 0067 kg/cm2.Keywords: Organic Plnating Bag, Water hyacinth, Coconut Husk
The Effect of Antimicrobial Addition to Protein Whey Based Edible Film on the Gouda Cheese Physical Quality During Ripening Andriani, Ria Dewi; Sawitri, Manik Eirry; Al Awwaly, Khothibul Umam; Manab, Abdul
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The objective of this study was to identify the effect of the addition of antimicrobial agent (benzoic and propionic acid) to protein whey based edible film on the Gouda cheese physical quality during ripening. The functional properties of Gouda cheese was analyzed, including colour, texture and microstructure. The results revealed that the addition of benzoic and propionic acid gave significant effect statistically (p<0.05) on yellowness (b*), but insignificant effect (p>0.05) on texture, brightness (L*) and redness (a*) of Gouda cheese. The results also showed that ripening time significantly affected (p<0.05) on texture and brightness (L*) of Gouda cheese, but did not affect on redness (a*) and yellowness (b*). Microstructure of Gouda cheese with the addition of benzoic acid indicated that the dispersion of fat globules was more uniform, meanwhile the dispersion of matrix protein was more uniform with the addition of propionic acid. Generally, microstructure of Gouda cheese showed that the dispersion of fat globules and matrix protein was more uniform in four months ripening time.Keywords: Edible Film, Protein Whey, Gouda Cheese, Antimicrobial agent
Performance Appraisal of Fresh Milk Supplier using Analytic Network Process Method and Rating Scale: Case Study in ‘Pusat Koperasi Industri Susu’ Sekar Tanjung Pasuruan Arin, Riska Devi Nur; Astuti, Retno; Ikasari, Dhita Morita
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Pusat Koperasi Industri Susu (PKIS) Sekar Tanjung Pasuruan is a company engaged in the processing of milk. Performance improvement is needed in increasing competitiveness of PKIS Sekar Tanjung Pasuruan. One of the factors that affect the performance of PKIS Sekar Tanjung Pasuruan is performance of its suppliers. The purposes of this research were to obtain the weight of fresh milk supplier performance criteria by applying Analytic Network Process (ANP) method and to get the order or priority of fresh milk supplier based on rating scale. ANP is a weighting performance criteria method. ANP involves the interaction and dependence of high-level elements in the hierarchy of low-level elements. By using ANP method, supplier performance was expected being able to be assessed in accordance with the company’s key criteria. The result of criteria weight were efficiency (0.088), flexibility (0.056), responsiveness (0.503), and food quality (0.353). The result of subcriteria weight were production cost (0.044), transaction cost (0.044), consumer satisfaction (0.008), volume flexibilities (0.019), delivery flexibilities (0.003), delivery delay (0.026), fill rate of order quantity (0.143), suitable of delivery method (0.260), consumer complain (0.100), physical appearance (0.024), safety and healthy product (0.042), product reliability (0.059), production system (0.189), and environmental aspect (0.039). The results of performance assessment of fresh milk supplier based on descending scores are supplier F (3.331), supplier A (3.213), supplier D (2.917), supplier C (2.875), supplier E (2.722), and supplier B (2.672).Key Words: ANP,  Rating Scale, performance of supplier
Types and concentration affect of natural preservatives on the quality of palm sugar Naufalin, Rifda Naufalin; Yanto, Tri; Sulistyaningrum, Anna
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Coconut sap easily damaged, so the need for the preservation process. Farmers usually use (laru) was added a solution of lime with mangosteenrind and jackfruit wood chips to conserve juice. But the availability of a preservative is limited so that not a few farmers who use synthetic preservatives, sodium metabisulfite. Some natural preservatives that can be used as an alternative to extend the shelf life of coconut sap are betel leaves, clove leaf, guava leaves, wooden cup, and tea leaves. These materials have bioactive components that can act as antimicrobia.This research aims to 1) determine the effect of the type of natural preservatives to maintain freshness of coconut sap and quality of coconut sugar, 2) determine the effect of concentration of natural preservatives to maintain freshness of coconut sap and quality of coconut sugar, 3) determine the effect of the old store on the quality of coconut sap , 4) determine the effect of combined treatment of natural preservative type and concentration of preservatives on the quality of the coconut sugar.The research consisted of two phases. The results of phase 1 showed that the coconut sap is added preservative clove leaves (M4), guava leaves (M5) and mangosteenrind (M1) with concentration of 4.5% (K1) gave pH value, levels of sucrose and the highest sensory when compared with other preservatives. The results of phase 2 showed that coconut sugar is added to the preservative mangosteen rind, clove leaf, and guava leaves not significant difference to the chemical variables (water content, ash content, reducing sugar content, and total sugar content), but gave significant influence to organoleptic variables (color, aroma, flavor, texture, and preferences)..
Application of Six Sigma Method for Process Improvement in Reducing Pack Defect of Greenfield Milk (Case Study in PT Greenfield, Malang) Hariri, Rifan; Astuti, Retno; Ikasari, Dhita Morita
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

PT Greenfield has always tried to produce milk in accordance with the standards in order to satisfy the consumer, but the fact showed that there were product defects in PT Greenfields. The defects were occurred in handling after the filling process which caused defects in packaging (pack defect). The aim of this research were knowing the factors that cause the pack defect of Greenfields ESL (Extended Self Life) milk and knowing the priority of proposed improvements  which would be used to reduce the number of pack defects of  Greenfields  ESL milk. Data were analyzed using six sigma methods through define, measure, analyze, and improve phase. The research results showed  that the factors caused pack leakage were problems of filling machine, dropping of stacked packs or pack hitting by  forklift, carelessness on stuffing, imprecise in placing cartoons on the pallet, human error/carelessness, flabby paper, and high humidity. Filling machine has the greatest value of RPN Risk Priority Number) of FMEA (Failure Mode Effect Analysis). It  indicates that the priority of improvements was on filling machine.Keywords: Deffect, FMEA, RPN, six sigma
Potential of Oyster Mushroon (Pleurotus ostreatus) and Gluten in the Production of Artificial Meat with High Fiber Content Wardani, Nela Agustin Kusuma; Widjanarko, Simon Bambang
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The purpose of this study was to obtain a method of making artificial meat with the use of oyster mushrooms and gluten. This experiment was also studied the effect of different proportion of oyster mushroom flour and gluten on the physicochemical and organoleptic properties of an artificial meat. Teoritical evaluation of protein nutritional value was also studied. Randomized Block Design (RBD) was used in this experiment with flour proportion of oyster mushroom : gluten ratio as single factor. Each experiment was repeated 4 times. Percentage increase of oyster mushrooms addition on wheat gluten dough are J1 = 0% (w/w); J2 = 10% (w/w); J3 = 20% (w/w); J4 = 30% (w/w). Based on experimental results, the best treatment  of physicochemical parameter was proportion of oyster mushroom flour and gluten (30:70) which had moisture content of 73.16%, protein content 16.21%, 84.02% WHC, texture 21.81 N, pH 6.72, and color (L = 40.84; a + = 18.00, b + = 22.53). On the other hand, the best treatment of organoleptic properties obtained from the proportion of oyster mushroom flour and gluten (10:90) with level of preferences were 3.65 (neutral) for taste, 4.55 (somewhat like) for texture and color, and 4.05 (neutral) for aroma. For the best treatment (proportion of oyster mushroom flour and gluten (30:70)) of SEM (Scanning Electron Microscopy) showed that there were many holes in large quantities and the size of hole was large. Product with organoleptic parameter (proportion of oyster mushroom flour and gluten (10:90)) had small fewer holes (porous). In addition, the texture surface looked rougher than control. The quality of digestibility, biological value and NPU of the best treatment in series were 94.50%, 40.15% and 37.94% for physicochemical parameters, and 95.54%, 33.92%, and 32.41 % for organoleptic parameters.Keywords: Oyster mushrooms, gluten, artificial meat
Mocaf (Modified Cassava Flour)-Based Artificial Rice Production (Study of Mocaf and Rice Flour Proportion with the Addition of Porang Flour) Yuwono, Sudarminto Setyo; Febrianto, Kiki; Dewi, Novi Sintya
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

National rice production is currently quite a lot, but feared not enough for national rice necessity. Therefore, diversification of staple foods in the form of artificial rice is needed to support national food availability. Some problems in artificial rice product are first its texture. It tends to be hard due to the high content of amylose in Mocaf. As well the strong aroma of Mocaf makes artificial rice difficult to be accepted by consumers. Also we need to use additional materials such rice and porang flour to improve its texture and taste. This research used Randomized Block Design method (RBD) with two factors. The first factor was Mocaf and rice flour proportion consisting of 3 levels (90 : 10, 80 : 20 and 70 : 30) and the second factor was the addition of porang flour consisting of 3 levels (2%, 3% and 4%). The obtained data were analyzed using ANOVA (Analysis of Variance) and then continued using Least Significant Different Test (LSD) at α = 5%. The organoleptic test data were analyzed using Hedonic Scale Scoring Test and then continued using Duncan’s Multiple Range Test (DMRT) at α = 5%, while for determining the best treatment using De Garmo effectivity index method.The best treatment based on the physical, chemical and organoleptic parameters was obtained from the treatment Mocaf and rice flour proportion = 70 : 30 with the addition of porang flour 3% resulting artificial rice with the physical and chemical characteristics as follows color brightness (L *) 50.47, texture 1.27 N, rehydration capacity 177%, volume development 125%, water content 9.21%, starch 70.83%, amylose 18.86%, ash 0.62%, fat 2.71%, protein 2.71%, carbohydrates total 84.75%, oxalic acid 0.06% and organoleptic characteristics, as follows color 3.55 (neutral), aroma 3.60 (neutral), texture 4.00 (like) and taste 3.85 (neutral).Keywords: artificial rice, Mocaf, rice flour, porang flour
Organoleptic Characteristics of Natural Flavour Powder From Waste of Swimming Blue Crabs (Portunus pelagicus ) Processing: Study on Dextrin Concentration and Drying Temperature Mulyadi, Arie Febrianto; Maligan, Jaya Mahar; Wignyanto, Wignyanto; Hermansyah, Ricky
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

As a maritime country, Indonesia has the potential product of marine fisheries are very abundant, but the potential is still not used optimally. One of the potential that can be developed is wimming blue crab. Besides the meat, use the swimming blue crabs shells are also quite large. One use of this shell is used as the main ingredient of natural flavour powder manufacture. Making natural flavour powder from waste of swimming blue crabs meat processing need to consider several factors, among which the concentration of filler material (filler) used the dextrin and drying temperature, therefore it is necessary to do a study of dextrin concentration and drying temperature on the manufacture of powdered natural flavour from waste of swimming crabs meat processing. The best results are at 60 °C drying temperature and the concentration of 10% dextrin. The best treatment has a value of organoleptic parameters namely the taste of 2.6 (neutral), aroma of 3 (neutral), color of 3.6 (like), texture of 3.8 (like), and for the physical parameters of the water content of 6%, the solubility of 74.67% and 10.34% absorption.Keywords: Taste, aroma, color, texture, filler
Utilization of Pineapple Juice Base Growth Medium for Lipid Production by Xanthophyllomyces dendrorhous Andriani, Ria Dewi; Akeprathumchai, Saengchai; Laoteng, Kobkul; Poomputsa, Kanokwan; Mekvichitsaeng, Phenjun
Jurnal Teknologi Pertanian Vol 14, No 3 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The main objective of this study lies in utilization of pineapple juice concentrate, an agricultural by-product derived from canned pineapple industry, as a low cost base growth medium to cultivate and simultaneously produce lipid by the red yeast X. dendrorhous. Pineapple juice was characterized and revealed that sucrose, glucose, and fructose were present at the concentration of 23.58, 39.14, and 36.86 g/L, respectively. In addition, acetic acid, citric acid, propionic acid concentrations of 21.70, 2751.30, and 51.00 mM were found to be the main acid in pineapple juice concentrate together with several amino acids; therefore, it possible to employ as base culture medium to cultivate X. dendrorhous. Results on cultivation of X. dendrorhous in the concentration of total sugar 10 g/L pineapple juice without supplemented of nitrogen source was satisfactory in comparison with that of yeast medium. Biomass and lipid content obtained of when cultivated X. dendrorhous in pineapple juice were of 5.14 g/L and 8.90 % in dry cell weight, respectively, while biomass and lipid content when cultivated in yeast medium were 4.88 g/L and 4.10 % in dry cell weight, respectively. Since yeast medium was rather expensive, moreover, cultivation of X. dendrorhous in pineapple juice concentrate, a low cost substrate, was fairly reasonable. Therefore, pineapple juice could be an excellent substrate for cultivating X. dendrorhous when appropriately optimized.Keywords: biomass, lipid, X. dendrorhous, pineapple juice

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