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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 1,078 Documents
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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

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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
Analysis Of Water Balance Of Corn (Zea Mays) In Bandar Lampung Muamar, Muamar; Triyomo, Sugeng; Tusi, Ahmad; Rosadi, Bustomi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

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Abstract

Indonesia needs of the community against corn continues to increase with increasing population growth as well. One effort to support the increased productivity of corn agribusiness development program is the provision of adequate water for plant growth. This aims of the research were (1) calculate the amount of corn crop water requirements, (2) quantify the potential of rainwater that can be utilized and stored, (3) analyze the potential evapotranspiration, percolation and runoff rate, (4) to calculate Kc plants. Field experiment was conducted at the Integrated Field Laboratory College of Agriculture, University of Lampung from 26 August to 4 December 2011. Field observations carried out on two experimental treatment with four repettition, the treatment were plots with plastic liner (plot A) and without plastic liner (plot B) where are each equipped with a water storage pond at the downstream. The results showed that (1) The consumptive use (ETc) during the study water requirements of corn is 614,3 mm. (2) Total runoff that occurs on a plot with plastic liner adn without plastic liner of land is 58,96 mm and 37,24 mm. (3) Percolation that occurred during the study in the plot of land without plastic liner is 40,58 mm. (4) The corn crop coefficient (Kc) on average in the early developmental stages, vegetative stage, stage of flowering and seed formation, and aging stage were 1,26; 1,72; 1,66 and 1,02. (5) the water productivity on plot A was 1,88 kg/m3 while on the plot B was 2,48 kg/m3. Keywords: water balance, corn, evapotranspiration, percolation, surface runoff.
STUDI PENGGUNAAN UV-VIS SPECTROSCOPY DAN KEMOMETRIKA UNTUK MENGIDENTIFIKASI PEMALSUAN KOPI ARABIKA DAN ROBUSTA SECARA CEPAT Meinilwita Yulia; Riri Iriani; Diding Suhandy; Sri Waluyo; Cicih Sugianti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 1 (2017)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.022 KB) | DOI: 10.23960/jtep-l.v6i1.%p

Abstract

There are two popular coffees in Indonesia, namely Arabica and Robusta coffees. Arabica coffee has a better quality than Robusta do. This research aimed to identify the  purity of Arabica coffee; and Robusta as mixture ingredient, by using technology of UV-Vis spectroscopy and multivariate analysis, with a method of soft independent modelling of class analogy (SIMCA) and principal component analysis (PCA). The research was conducted using coffee powder with size 0,297 millimeters (50 mesh).The research used 100 samples; sample 1-50 (1 g of Arabica), sample 51-60  (0,8 g of Arabica and 0,2 of Robusta), sample 61-70 (0,7 g of Arabica and 0,3 g of Robusta), sample 71-80 (0,6 g of Arabica and 0,4 of Robusta) sample 81-90 (0,5 g of Arabica and 0,5 g of Robusta), sample 91-100 (0,4 g of Arabica and 0,6 g of Robusta).  The result of classification showed that method of PCA and SIMCA are able to classify the mixture of pure Arabica. PC1 explained 77% various datas, and PC2 explained 10% various datas, whilst from data classification SIMCA obtained the precentage score onaccuracy 56%, sensitivitas 58%, and spesifisitas 0%.Keywords: Arabica coffee, Robusta coffee, PCA, SIMCA, UV-Vis spectroscopy
TECHNICAL AND COST PERFORMANCE OF MICROHYDRO POWER PLANT Haryanto, Agus; Fauzan, Muhamad Inu; Lanya, Budianto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

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Abstract

The increase in electricity consumption in one side and the depletion of fossil fuel sources in the other side have triggered Indonesia to support any development of renewable-based electricity generation, including microhydro-based power plant. The objective of this research was to investigate technical and cost performance of microhydro power plant. Observation was conducted on four microhydro power plants located in Bogorejo village, Sub district of Gedong Tataan, Pesawaran District, Lampung Province. The plants were developed and self-managed by the community. Parameters to be measured or recorded included head of water, voltage and electrical current produced from the generator, number of family serviced by the plant, and electricity price that community should pay. Results showed that power output of the plants was ranging from 314 to 1805 W with 2 to 20 families were serviced for each unit. The research revealed that output power was related to the combination factor of head, the diameter of base penstock pipe, and inverse of generator’s pulley size. The output power was also linearly related to installation cost. With an installation cost of 8 to 40 million rupiahs per unit, the electric energy price was in the window of 633 to 973 rupiahs per kWh. It was concluded that Rohman’s microhydro, with power output of 1805 W and energy price of Rp.633/kWh, was the best compared to the others. Keywords: microhydro, performance, energy price, power
PRODUKSI BIOGAS DARI CAMPURAN KOTORAN AYAM, KOTORAN SAPI, DAN RUMPUT GAJAH MINI (Pennisetum Purpureum cv. Mott) DENGAN SISTEM BATCH Yasin Yahya; Tamrin Tamrin; Sugeng Triyono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 3 (2017)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (289.407 KB) | DOI: 10.23960/jtep-l.v6i3.151-160

Abstract

ABSTRAKBiogas merupakan energi alternatif yang dapat dikembangkan untuk menjadi salah satu solusi krisis energi.  Biogas merupakan hasil fermentasi anaerob bahan organik menjadi gas metana (CH4).  Gas metana (CH4) hasil produksi biogas dapat dijadikan menjadi bahan bakar gas.  Penelitian biogas ini memproduksi biogas dari campuran kotoran ayam, kotoran sapi dan rumput gajah mini (pennisetum purpureum cv. Mott) dalam digester volume 2 L dengan sistem batch.  Penelitian biogas ini menggunakan empat perlakuan campuran kotoran ayam, kotoran sapi dan rumput gajah yaitu A 0:100:0, B 0:80:20, C 20:60:20, dan D 30:20:50.  Penelitian ini bertujuan untuk mengetahui campuran optimum untuk produksi biogas.  Hasil penelitian diperoleh nilai optimum rasio C/N untuk produksi biogas yaitu perlakuan A 27,52, B 25,47, dan C 22,23 sedangkan D dibawah optimum yaitu 19,18.  Hasil produksi biogas perlakuan A 4916 mL, B 4610 mL, C 3909 mL dan D 2640 mL.  Produktivitas biogas perlakuan A 60,71 mL/g VS, B 109,58 mL/g VS, C 134,29 mL/g VS dan D 53,88 mL/g VS.  Uji nyala masing-masing perlakuan A dan B menghasilkan api berwarna biru, C api berwarna biru kekuningan dan D tidak dapat menyala.  Perlakuan A dan B paling optimum untuk produksi biogas berdasarkan total produksi biogas, rasio C/N dan hasil uji nyala. Kata Kunci:   Rumput gajah mini; produksi biogas; rasio C/N; uji nyala
UJI KINERJA PROTOTIPE ALAT PENGIRAT BAMBU Fauzan .; Tamrin .; Sri Waluyo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 1 (2014)
Publisher : The University of Lampung

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Abstract

Bamboo is becoming versatile plant for rural communities for many utilities, such as house, bridge, ladder, Geribik, fence, handicraft, etc. Now, Indonesian bamboo craftsmen are still using a manually method to rod  bamboo. So that it is needed to make a tool that enhances efficiency and quality of bamboo strip as raw material to produce bamboo-made handicrafts. This study aimed to make a tool that enhances efficiency and quality of bamboo strip as raw material to produce bamboo-made handicrafts.The steps are as follows one bar of bamboo was cutted with 0.5 m length and 0,15 width. Then, the outer skin was peeled before it was sliced into some strips. Next, the strips of bamboo was feeded to a channel and booster unit in a spinned condition. Each tests were repeated 3 times i.e. 5 samples in wet condition and 5 samples in dry condition. Part of tested bamboo was classified into 3 types i.e. culm, middle and end. Then,  percentage of rodent bamboo, and the period of split process.The performance test of splitter bamboo tool for wet bamboo found that the percentage of bamboo culm is 33,33 %, middle 20 % and end 26,67%. Based on the percentage, Culm has bigger percentage than others due to the culm has a more suitable thickness with the knife from the splitter tool. Whereas the dry of the sample found that the percentage of culm, middle is similar about 33,33 % and the end part of the bamboo has percentage around 20 %. This condition exists since the dry sample of the bamboo has a more stabilized texture than the wet one due to still high water content. Keywords: Testing, splitter, bamboo
ANALYSIS OF THE QUALITY OF SMOKED WHITELIPPED EEL CATFISH IN “MINA MULYA” FISH PROCESSING GROUP, PASIR SAKTI, EASTERN DISTRIC OF LAMPUNG Novita Mrdiana
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

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Abstract

The aimof this researchwas to find out the quality of smoked whitelipped eel catfish in difference smoking timeat “MinaMulya” Fish Processing Group, Pulosari Village, Pasir Sakti, Eastern Distric of Lampung. The reaserchwas conducted infour levels smoking time,which are 1, 2, 3 and 4 hours. The analysis on smokedwhitelipped eelcatfish applied kind of proximate analysis (fat level, protein level,ash level and moisture level), microbiologyanalysis (Total Plate Count (TPC), Escherechia coli bacteria, Salmonella sp. bacteria and Staphylococcus aureusbacteria) and organoleptic analysis (appearance, odour, flavour and texture). The results of this research showthat the smoking time levels affect the quality of whitelipped eel catfish. The proximate analysis result showdifferences among the treatments especially on the proximate analysis. Organoleptic analysis shows that onappearance parameter, only whitelipped eel catfish that are smoked for 3 hours fulfill theminimumvalue (7,0).Whereas organoleptic values for odour, flavour and texture parameter showthat onlywhitelipped eel catfish thatare smoked for 1 hour that does not fulfill theminimum value. Microbiology analysis shows that the content ofTPC and Escherechia coli bacteria smoked fish get under the maximum value of tolerance arrenged on SNI ineach treatment. The content of Salmonella sp. and Staphyococcus aureus bacteria are negative on the wholetreatments.
BIOGAS PRODUCTION FROM A MIXTURE OF COW MANURE WITH CHICKEN MANURE Denta Sanjaya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 2 (2015)
Publisher : The University of Lampung

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Abstract

Biogas technology with zero waste concept is expected to be the alternative energy and to reduce environmental problems. The purpose of this study is to know the biogas yield per kilogram of each chicken and cow manure comparison. The study was conducted in six treatments with the addition of chicken manure of 0, 100, 300, 500, 700 and 1000 grams. The fermentation process is done using a batch system and biogas measurement was taken daily. The parameters to be observed were organic matter, the degree of acidity (pH), temperature, volume of biogas, biogas productivity, and C / N ratio of each treatment. The results showed that the overall pH at the beginning and end of the study tend to be close to neutral. The highest biogas yield was resulted from a mixture of chicken manure and cow manure at the composition of 1:1 or 50%:50% with biogas total amount of 35.690 ml and biogas productivity of 0,33 liters/g (volatile solid) . Keywords : biogas, cow manure, chicken manure, anaerobic codigestion.
THE MAKING OF HYDROTON WITH DIFFERENT SIZE AS GROWTH MEDIA OF HYDROPONIC FROM CLAY AND DIGESTATE Oktafri Oktafri
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

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Abstract

This study aimed to determine the effect of digestate composition and sizes of the granules to bulk density, water holding capacity, and the physical of hydroton. The design of this study used completely randomized factorial design with three replications. The first factor is digestate compositionwith 3 levels are 0%, 25%, and 50% to weigh of clay soil. The second factor is size particular of hydroton with 3 levels are 2-4 mm, 4-8 mm, and 8-12 mm. The results showed that there was no significant interaction between digestate composition and size of granules. However, the composition of digestateeffected to bulk density, water holding capacity, and the physicalof hydroton. The treatment combination by A3B3 was achieved the best result isthe value of bulk density media 0,83 gr/cm3, water holding capacity of 25,95%, and the physical of hydroton 11,63 N/cm2.Keywords :growth media, hydroponic, hydroton, clay soil, digestate
RANCANG BANGUN ALAT PENYUSUN RAK PENJEMURAN DIATAS PARA- PARA KE DALAM BOKS SECARA SEMI MEKANIS Hendra Saputra; Tamrin -; Muhamad Zen Kadir
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 2 (2016)
Publisher : The University of Lampung

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Abstract

Drying process by using Para-para is more effective than the conventional one which uses floor surface or plastic(terpal). The products will dried faster and cleaner, nevertheless the system tomoveand to arrange the finalproductis wastes a lot of time and energy. Hence, the objective of this reasech was to make a semi-mechanicalPara-para drying shelf that integratedly connect to semi machanic box in order to save time and energy uses. Thissemi-mechanical drying device contained of two frames, four shelves, two ropes,two box movement holdings,boxes, spring, big pulley and small pulley. The process started bywaiving its hook from the shelves thus the treadlewould pull the other connected components to the shelves and automatically move to the box. The pulleys wereused to set the shelves movements to the boxes, consequently the box will consecutively move to next lowershelflevel after being filled Furthermore, filled boxes caused an increasing of tensile strength which also increasethe speed of box movement. Box retention rate was used to decrease the fourth shelf speed that will prevent loss.The device were tested by dryingcassava and soybean. Finally, the result showed that it only consume 1,19seconds to move and arrange the product with less manpower assistance. Moreover, Para-para were succesfullysave time and manpower compared to manual movement which only take approximately 11,83 seconds for eachshelf.Keywords: Drying, semi-mechanic drying shelf, Para-para.

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