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Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Published by Universitas Lampung
ISSN : 2302 559X     EISSN : 2549 0818     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering
Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural Enginering including but not limited to Agricultural Mechanization, Irrigation, Soil and Water Engineering, Postharvest Technology, Renewable Energy, Farm Structure, and related fields. The first issue was published in October 2012 by Department of Agricultural Engineering, Faculty of Agriculture, University of Lampung. Jurnal Teknik Pertanian Lampung has ISSN number 2302 - 559X for print edition on October 10, 2012 then 2549 - 0818 for online edition on January 10, 2017. Jurnal Teknik Pertanian Lampung is issued periodically four times a year in March, June, September, and December. Jurnal Teknik Pertanian Lampung has been indexed by Google Scholar, Crossref, Directory Open Access Journals (DOAJ), and CABI. Since Volume 5 Issue 1 (2016) Jurnal Teknik Pertanian Lampung has been accredited as SINTA 3 by Directorate General of Higher Education (DIKTI). Starting Volume 10 Issue 3 (2021) the journal received accreditation SINTA 2.
Arjuna Subject : -
Articles 7 Documents
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Search results for , issue "Vol 5, No 3 (2016)" : 7 Documents clear
STUDI PENGGUNAAN UV-VIS SPECTROSCOPY UNTUK IDENTIFIKASI CAMPURAN KOPI LUWAK DENGAN KOPI ARABIKA Cicih Sugianti; Novi Apratiwi; Diding Suhandy; Mareli Telaumbanua; Sri Waluyo; Meinilwita Yulia
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1001.667 KB) | DOI: 10.23960/jtep-l.v5i3.%p

Abstract

This study aims to identify the authentication of civet coffee using a Soft independent modeling of class analogy(SIMCA) method and principal component analysis (PCA). The test carried out on the coffee powder measuring0.297 millimeters (mesh 50). Comparison of blend that is samples 1- 50 each 1 g of pure civet coffee, samples51- 60 each 0.9 g civet coffee and 0.1 g arabica coffee, samples 61-70 each 0.8 g civet coffee and 0.2 g arabicacoffee, samples 71-80 each 0.7 g civet coffee and 0.3 g arabica coffee, samples 81-90 each 0.6 g civet coffee and0.4 g arabica coffee, samples 90-100 each 0.5 g civet coffee and 0.5 g arabica coffee. The classification resultsshow SIMCA and PCA methods are able to identify civet coffee mixture. PC 1 explains 75% the variance of dataand PC2 explains 17% the variance of data. Values obtained on SIMCA classification are specificity 76%,sensitivity of 84% and accuracy of 80%, with a value error of 23%.Keywords: Arabica coffee,civet coffee, PCA, SIMCA, UV-Vis spectroscopy.
ANALISIS DIFUSI LARUTAN PUPUK MELALUI DINDING MORTAR ARANG SEKAM PADI Dian Fajar Lestari; Ahmad Tusi; Muhamad Zen Kadir
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (930.981 KB)

Abstract

The aim of this reasearch is to determine difussion coefficient of nutrient solution through rice husk charcoalmortar walls. This research used completely randomized design (CR) with factorial arrngement which consistedof factors. The first factor, the material composition ratios of mortars (cement : sand : rice husk charcoal),consisted of two levels: P 1 (1:3:3) and P 2 (1:3:4). The second factor, the concentration of nutrient consisted ofree levels, namely K 1 (3 mS/cm), K 2 (6 mS/cm), and K 3 (9 mS/cm). Data set was analyzed by using ANOVA,then followed by using LSD at 5% significant level. Anova showed that there was interaction between mortarmaterial composition and nutrient concentration. The best diffusion coefficient was found in the treatment P 2 K 1and P 2 K 2 (1:3:4 and the nutrient concentrations 3 mS/cm, 6 mS/cm). Nutrient solution in the treatments couldpass through the walls of mortar very well, so that it could be used as a means of fertigation.Keywords: Fertigation, Diffusion, Nutrient Solution, and Rice Husk Charcoal Mortar.
PEMBUATAN SABUN PADAT TRANSPARAN MENGGUNAKAN MINYAK KELAPA SAWIT (Palm oil) DENGAN PENAMBAHAN BAHAN AKTIF EKSTRAK TEH PUTIH (Camellia sinensis) Widyasanti, Asri; Farddani, Chintya Listiarsi; Rohdiana, Dadan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.826 KB)

Abstract

Transparent soap is a kind of solid soap. The addition of white tea extracts could be expected to increase theadvantageof transparent soap. The purpose of this research was to determine process and formulation for themaking of transparent solid soap using palm oil based with addition white tea extracts and its effect to thecharacterictics of transparent solid soap. This reasearch was used laboratory experimental method using descriptiveanalysis. The treatment of this reasearch were addition of white tea extracts using concentrations 1% (w/v) withthe addition of A= 0% (w/v), B=0.5% (w/v), C=1.0% (w/v), and D=1.5% (w/v). Parameters observed wereorganoleptic, chemical properties, antibacterial activity, hardness, and stability of foam. Organoleptic test resultsshowed that panelists prefer soap treatment B with a percentage of 36.67%. The chemical properties of this soapwas in accordance with SNI solid soap No.06-3532-1994, except amount of fatty acids. The value of water contentand evaporated substance was 12.17%, the content of free alkali was 0.101%, the content of unsaponifiedfraction was 2.10%, and the amount of fatty acid was 35.67%. pH value was in accordance ASTM D 1172-95 withpH value of 10. The value of hardness was 0.0091 mm/g/s, stability of foam was 39.08%, and antibacterialactivity with inhibition zone diameter was 11.28 mm. It proved that making transparent solid soap using a palmoil based and the addition of white tea extract as active ingredients could be applied by the community.Keywords:Transparant Solid Soap, Palm Oil, White Tea Extract
EVALUASI POTENSI PENGAIRAN CALON LOKASI PERLUASAN SAWAH DI KABUPATEN TULANG BAWANG, PROVINSI LAMPUNG Thoriq, Ahmad; Sampurna, Rizky Mulya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.523 KB)

Abstract

Water resources availability is a key that must be met in the paddy field extension due to water is needed for thegrowth of paddy. This study was to evaluate the potential of irrigation area for paddy field extension in TulangBawang, Lampung. The study began with the preparation phase, followed by field coordination, mobilizationteams, survey and investigation of the potential for irrigation area, processing and analysis of data field. Theresults showed that potential location of water resources in Tulang Bawang river and Pidada river with instantaneousdischarge ranged 1180-3775470 liters/ sec. Those water resources are located above the candidate sites and willbe used to irrigate candidates area varied from 74.39 to 1381.71 hectares. Driest month occurs in August about85.5 mm/month of rainfall while wet months in January about 353.33 mm/month of rainfall with annual rainfallranges from 2372 to 2539 mm/year.Keywords: irrigation, Tulang Bawang, paddy field extention
PENGARUH KONSENTRASI PEREKAT TEPUNG TAPIOKA DAN TANAH LIAT TERHADAP MUTU BRIKET BATU BARA Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (179.725 KB)

Abstract

Making coal briquettes require tapioca glue and clay. The purpose of this research is studying the effect ofconcentration tapioca glue and clay to characteristic coal briquette. Research carried out by treatment with aconcentration of starch, clay and coal flour respectively as follows; a) 2%, 18%, 80%, b) 4%, 14%, 82%, c) 6%,10%, 84% and d) 8%, 6%, 86%. The results are showed that the density of coal briquettes are not affected by theconcentration of glue material, but it is influenced by the pressure of the tool at the time of manufacture. The lowerthe content of clay in the briquettes, the stronger the briquettes were produced and the lower the number ofbriquettes were broken when dropped at a height of 2 m. The higher the clay content of the briquettes, so the timefor the initial combustion, the temperature of the plate surface reached 180 °C and the duration of briquettebecame ashes are longer. The rate of combustion of coal briquettes are made lower than the rate of briquettescombustion from briquettes non carbonization and carbonizationKey word : coal briquette, tapioca, clay, start up combustion dan carbonisation
PENGARUH PERBANDINGAN MOLAR DAN DURASI REAKSI TERHADAP RENDEMEN BIODIESEL DARI MINYAK KELAPA (Coconut Oil) Risa Inggit Pramitha; Agus Haryanto; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (829.161 KB)

Abstract

This study aims to determine the effect of the molar ratio of oil : methanol and duration of the reaction on theyield of biodiesel produced from palm oil transesterification. The transesterification reaction is carried outusing coconut oil at 60 °C and 0.5 grams of NaOH catalyst. The method is a completely randomized design witha combination of two factors, namely the molar ratio and the duration of the reaction. The molar ratio consistsof four levels (1: 3, 1: 4, 1: 5 and 1: 6), while the duration of the reaction is composed of three levels (15, 30, and60 minutes). Parameter observations include yield, density, and viscosity of biodiesel produced. Each unit ofexperiment was performed using 100 ml of coconut oil and each treatment was repeated three times. Theresults showed that duration factor significantly influence the yield and viscosity of biodiesel, while the molarratio factor significantly influence the viscosity of biodiesel. Interaction of these factors, however, do not affectparameters observed. The highest yield of biodiesel (75.56%) resulted within duration of 60 minutes andthe lowest (60.27%) on within duration of 15 minutes. Biodiesel produced has a density of 0.86 to 0.87 g/ml(complies SNI), and a viscosity of between 3.40 to 4.55 cSt
UJI KINERJA DAN PENGUJIAN LAPANGAN MESIN GRADING TOMAT (Lycopersicum esculentum) TEP-5 Wahyu K Sugandi; Sudaryanto -; Totok Herwanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338 KB)

Abstract

Laboratory of Agricultural Equipment and Machinery, Department of Industrial Engineering and ManagementAgricultural has designed a tomato grading machine TEP-5 to accelerate post-harvest handling of tomatoes. TheMachine design need to be evaluated to determine it’s performance and quality of tomato grading results. Theresearch method is descriptive analysis. Based on test results, tomato grading machine TEP-5 had an actualcapacity of 4246 Tomato with the engine efficiency of 60,48% and. Engine noise no with and without load was68,3dB and 69,8 dB respectively. Engine vibration generated during no-load test was 2.09 m/s 2 and 2.02 m/s 2with load test. Engine power with and without load respectively 265,8 and 254,8 watt. Tomato quality results frommachine was grading significantly diferrent as compared with the one graded manually. The level of tomatodemage result from grading machine storage at room temperature and cool temperature (<10 o )respectively6.42% and 5.61%. These values were lower as compared to the manual grading. The bruised area of tomatogradeded mechanicaly was 30,19% than that of tomato graded manually. Tomato color was the range of yellowand no difference was observed between manual and mechanical grading.Keyword: grading machine, test performance, self life.

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