cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandar lampung,
Lampung
INDONESIA
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
 1 
Search results for , issue "Vol 2, No 1 (2013)" : 7 Documents clear
CHARACTERIZING OF ONGGOK FLOUR USING THREE DIFFERENT DRYING METHODS Sari, Marinda; -, Warji; Novita, Dwi Dian; -, Tamrin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.916 KB)

Abstract

The processing of cassava becoming tapioca flour will produce solid fiber waste called as onggok.  Onggok can be used as raw material for making onggok flour.  One of the processing steps on the producing of onggok flour is drying.  In common practice, solar dryer is used but it takes long time and strongly depends on weather.  The hybrid dryer (solar electrical energy), solar radiation dryer, and electrical dryer would be used in this research.  The aims of this study were to determine and to compare whiteness degree, the degree of acidity (pH), and the characteristics of onggok flour (color and aroma) and its organoleptic justification of onggok flour dryed by the three different drying methods.  The results showed that drying process under solar radiation dryer produced onggok flour at better color compared with the others, drying process using electrical dryer produced onggok flour at better aroma compared with the others, the best product based on organoleptic tests was onggok  flour dried by electrical dryer with color criteria a little white, the aroma criteria slightly cassava aromaed, and overall acceptance a bit like. Keywords: Onggok flour, drying, aroma, flour color
PHYSIOLOGY CHARACTERISTICS OF MANGOSTEEN (Garcinia Mangostana L.) AT MODIFIED ATMOSPHERE CONDITION Andre Fransiska; Rofandi Hartanto; Budianto Lanya; Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.316 KB) | DOI: 10.23960/jtep-l.v2i1.%p

Abstract

Mangosteen is a klimateric fruit so it has a short shelf life.  Therefore,  it is needed to handle carefully after harvesting.  Temperature setting combined with modified atmosphere is a type of storage which can decrease the respiration rate of fruit.  This research aims at determining the effect of modified gas composition on total dissolved solids, total acid, hardness, respiration rate, and shelf  life of mangosteen in the cold temperature and the room temperature storage. The research was carried out at room temperature (29 oC) and cold temperature (10 oC) combined with a gas composition of pure CO2 gas and air from a compressor containing O2 and N2 supplied to the storage bottle with composition of A (5% O2, 5% CO2), B (10% O2, 5% CO2), C (5% O2, 10% CO2), D (10% O2, 10% CO2). Total dissolved solid of mangosteen during storage was decreased, with the lowest  total dissolved solids was 16,6 obrix in the cold storage and 16,7 obrix at room temperature storage.  Total acid and respiration rate of mangosteen was stable decresed during storage. The hardness of mangosteen during storage increased with the highest value of 3,20 kg.s/mm. Mangosteen optimal shelf life at room temperature (29 oC)  was 16 days and at cold temperatures (10 oC)  was 20 days with gas composition of 5% O2 and 10% CO2. Modified atmosphere combined with temperature could extend the shelf life of mangosteen and influened the value of total dissolved solids, total acid, respiration rate and hardness. Keywords: Mangosteen, respiration, climateric, shelf life
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (541.368 KB)

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
ANALYSIS OF WATER BALANCE ON SOYBEAN CULTIVATION (Glycine max [L] Merr.) IN DRY LAND -, Oktaviani; Triyono, Sugeng; Haryono, Nugroho
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (927.994 KB)

Abstract

ABSTRACTSoybean is one important food crop in Indonesia after rice and corn. In 2008 to 2010, the amount of soybean harvest has fluctuated. One effort to increase the soybean yield is by using the expansion programs to exploit dry lands. However, water scarcity is the main problem faced in dry land cultivation.  For this reason, study on optimalization of water use become very important and potential of water harvesting is needed to be explored.  This study aimed to analyze and to partition the water balance at soybean cultivation, and also to explore the potential of rainwater harvesting.  The experiment was conducted at the Integrated Field Laboratory of the College of Agriculture, University of Lampung from 15 October 2011 to 6 January 2012.  The observations were carried out by constructing 8 plots, 2x1 m2 each, and in a longitudinal direction of the 5-6% slope.  Four of the experimental plots were sealed with plastic liner and another four pots were left without liner.  Each plot was equipped with a 1x0,5x0,5 m3 water storage pond at the down end of the plot.  Physical properties were determined at the beginning experiment; while rainfall, soil moisture, and water surface of the ponds were monitored evey day.  Soybean yield was weighed at the harvest time. The results showed that water balance could be divided into input and output.  Water input was partitioned into rainfall 41,56% and irrigation 58,44%.  Water output was partitioned into runoff 6,76%, percolation 13,74%, evapotranspiration 74,35%, moisture stored in the soil 0,20%, and irrigation surcharge 5,04%.  Irrigation efficiency was found about 91%, while rainwater harvested contributed 20,74% of the irrigation total.  Potential of productivity was found to be 3,3 ton soybean yield per ha, and potential water use productivity was about 0,74 kg soybean per m3 irrigation water. Keywords: evapotranspiration, soybean, surface runoff, water balance, water harvesting.
TESTING ORGANONITROFOS FERTILIZER OF PLANT RESPONSES RAMPAI TOMATO (Lycopersicon pimpinellifolium) IN POT(POT EXPERIMENT Widya Gandi; Sugeng Triyono; Ahmad Tusi; Oktafri -; Sutopo Ghani Nugroho; Dermiati -; Jamalam Lumbanraja; Hanung Ismono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.028 KB)

Abstract

Rampai tomato (Lycopersicon pimpinellifolium) is one important vegetable in Indonesia.  The production of rampai tomato increases every year, indicating a good opportunity for the tomato  in market. In the process of cultivation, fertilization is a very important aspect.  Advances in technology have invented some importantagricultural inputsespecially for chemical fertilizers such as Urea, TSP, KCl, NPK, and others.  Nowadays, small scaled farmers frequently face difficulty to get chemical fertilizers on market because ofeither scarcity or high price.  This condition needs to be well anticipated.  Reducing the use of chemical fertilizers by using organic fertilizers which isproduced from local and cheap natural resources is a somewhat promising solution.The organic fertilizer tested in this study is an alternative fertilizer called Organonitrofos.  Organonitrofos fertilizer is made from 70-80% cow dung and 20-30% phosphate rock, in the previous research.  Both the materials are locally available in Lampung.  This fertilizer then needs to be tested to ensureits consistency on plant production.  In this study, Organonitrofosfertilizerwas testedon rampai tomato plantsin pots (pot experiment).The study aimed  (1) to test the Organonitrofos fertilizer on the response of rampai tomato plants in pots (2)reduce the useof chemicalfertilizersin the production oframpai tomatoplants.The pot experiment was conducted in the Integrated Field Laboratory of the Faculty of Agriculture University of Lampung on January - April 2012.  The experiment used Completely Randomized Design (CR) with 7 treatment (7 combinations between chemical fertilizer and Organonitrofos), 4 replicates each.  Data collected was analyzed by using ANOVA and followed by LSD.  The variables observed were agronomic aspects (such as plant height, biomass, and production) and water consumption.  The results showedthat,based on theplant responsevariablessuch asplant height, upper and biomasses, andcrop production, treatmentC(100% Organonitrofos with 5000 kg/ha dose) was significantly different and better from every other treatment. Based on the water consumption (evaporationand irrigation), all the treatments were not significantly different.  However, the research showed that the use of 100% Organonitrofos fertilizer (5000 kg/ha); resulted in the highest water productivity (yield/water consumption).  This research also showed that the use of chemical fertilizersbe could significantly reduced by using combination between chemical fertilizers and Organonitrofos. Keywords: Rampai tomato , fertilizer, organonitrofos, plants response.
THE PRODUCTION AND CHARACTERISTICS TEST OF SYNTHETIC RICE MADE OF MAIZE FLOUR Arif Dwi Santoso; warji -; Dwi Dian Novita; Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (634.194 KB) | DOI: 10.23960/jtep-l.v2i1.%p

Abstract

Synthetic rice made of maize flour has a great opportunity to be developed as a staple food. Peopleused to consume synthetic rice, but only limited studies reported about the preferred characteristic of synthetic rice. The purpose of this study is 1) to produce and examine the characteristic of synthetic rice including moisture content, particle size, storage time and steam duration, and 2) toobtaine the preferred sensory level of synthetic rice based on aroma, texture, flavor and color.The procedure was startedbymakingthe maize flourto produce synthetic rice using a granulator machine. The granules was then steamed and dried under the sun light.  Seventype of synthetic rice was used in this research, namely pure maize rice (100% maize flour), three mixed synthetic rice of maize flour and wheat flour, and three mixed synthetic riceofmaize flour and tapioca flour withthree different ratio 95:5, 85:75, and 75:25.). The results showed that the water content of synthetic rice was measured between 10.37 to 13.79%.  While the steaming timewas reached around 46 to 68 minutes. The rice wasable to be stored about 24-26 hour. The organoleptic testsshowed that the most favorite synthetic rice was a mixture maize rice of 95% maize flour and 5% of tapioca flour  for all level preference of the sensory test. Keywords: Maize flour, rice synthetic, granulator, organoleptic.
PHYSIOLOGY CHARACTERISTICS OF MANGOSTEEN (Garcinia Mangostana L.) AT MODIFIED ATMOSPHERE CONDITION Agustina, Nanik; Waluyo, Sri; -, Warji; -, Tamrin
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.146 KB)

Abstract

The entry of water into seed until reached saturation point on the soaking process at room temperature, in common, may take more than one day. Mean while, longer soaking time can cause microbial contamination and may influence product quality in term of color, taste, and smell. Soaking in warmer liquid method is a common method used for shortening the soaking time. The objective of this research was to determine the effect of soaking temperature on the coefficient of diffusion and on the physical properties of Kidney bean (Phaseolus vulgaris L.). The research was conducted at 5 different soaking temperatures: 28 oC (control), 35 oC, 40 oC, 45 oC, and 50 oC, with 3 replications for each treatment. The parameters measured were dimensions of specimen, weight of specimen during soaking. The diffusivity of water were than derived from water content data. The results showed that the higher the soaking temperature, the faster the change of dimensions, weight, and water content. The coefficient of water diffusion of kidney bean at soaking temperatures: 28 oC, 35 oC, 40 oC, 45 oC, and 50 oC, was 12,91 x 10-11 m2/s; 6,42 x 10-11 m2/s; 25,64 x 10-11 m2/s; 60,20 x 10-11 m2/s and 48,24 x 10-11 m2/s, respectively.  It showed that the higher temperature, the faster the water diffusion rate and it follows exponential equation with the coefficient of determination, R2 = 0,643. Keywords: Kidney bean, soaking temperature, coefficient of water diffusion, physical properties

Page 1 of 1 | Total Record : 7

 1 

Filter by Year

2013 2013


Reset
Filter By Issues
All Issue Vol. 14 No. 6 (2025): December 2025 Vol. 14 No. 5 (2025): October 2025 Vol. 14 No. 4 (2025): August 2025 Vol 14, No 3 (2025): June 2025 Vol. 14 No. 3 (2025): June 2025 Vol 14, No 2 (2025): April 2025 Vol. 14 No. 2 (2025): April 2025 Vol 14, No 1 (2025): February 2025 Vol. 14 No. 1 (2025): February 2025 Vol. 13 No. 4 (2024): December 2024 Vol 13, No 4 (2024): December 2024 Vol. 13 No. 3 (2024): September 2024 Vol 13, No 3 (2024): September 2024 Vol 13, No 2 (2024): June 2024 Vol. 13 No. 2 (2024): June 2024 Vol. 13 No. 1 (2024): March 2024 Vol 13, No 1 (2024): March 2024 Vol 12, No 4 (2023): December 2023 Vol. 12 No. 4 (2023): December 2023 Vol. 12 No. 3 (2023): September 2023 Vol 12, No 3 (2023): September 2023 Vol. 12 No. 2 (2023): June 2023 Vol 12, No 2 (2023): June 2023 Vol 12, No 1 (2023): March 2023 Vol. 12 No. 1 (2023): March 2023 Vol 11, No 4 (2022): Desember 2022 Vol. 11 No. 4 (2022): Desember 2022 Vol. 11 No. 3 (2022): September 2022 Vol 11, No 3 (2022): September 2022 Vol 11, No 2 (2022): June Vol. 11 No. 2 (2022): June Vol 11, No 1 (2022): March Vol. 11 No. 1 (2022): March Vol. 10 No. 4 (2021): Desember Vol 10, No 4 (2021): Desember Vol 10, No 3 (2021): September Vol. 10 No. 3 (2021): September Vol. 10 No. 2 (2021): Juni Vol 10, No 2 (2021): Juni Vol. 10 No. 1 (2021): Maret Vol 10, No 1 (2021): Maret Vol 9, No 4 (2020): Desember 2020 Vol. 9 No. 4 (2020): Desember 2020 Vol 9, No 3 (2020): September 2020 Vol. 9 No. 3 (2020): September 2020 Vol 9, No 2 (2020): Juni 2020 Vol. 9 No. 2 (2020): Juni 2020 Vol. 9 No. 1 (2020): Maret 2020 Vol 9, No 1 (2020): Maret 2020 Vol 8, No 4 (2019): Desember Vol 8, No 3 (2019): September Vol 8, No 2 (2019): Juni Vol 8, No 1 (2019): MARET Vol 7, No 3 (2018): Desember Vol 7, No 2 (2018): Agustus Vol 7, No 1 (2018): April Vol 6, No 3 (2017) Vol 6, No 2 (2017) Vol 6, No 1 (2017) Vol 5, No 3 (2016) Vol 5, No 2 (2016) Vol 5, No 1 (2016) Vol 4, No 4 (2015): Special Edition Vol 4, No 3 (2015) Vol 4, No 3 (2015) Vol 4, No 2 (2015) Vol 4, No 1 (2015) Vol 4, No 1 (2015) Vol 3, No 3 (2014) Vol 3, No 3 (2014) Vol 3, No 2 (2014) Vol 3, No 2 (2014) Vol 3, No 1 (2014) Vol 2, No 3 (2013) Vol 2, No 2 (2013) Vol 2, No 2 (2013) Vol 2, No 1 (2013) Vol 1, No 1 (2012) More Issue