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Warji
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Department of Agricultural and Biological Engineering, Faculty of Agriculture Lampung University Jl. Soemantri Brojonegoro No. 1, Kedaton, Bandar Lampung, Lampung. 35145
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INDONESIA
Jurnal Agricultural Biosystem Engineering
Published by Universitas Lampung
ISSN : -     EISSN : 28304403     DOI : -
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology
This journal focuses on agriculture, biosystems and agricultural techniques. Covering power and agricultural machinery, agricultural cultivation, renewable energy, bioprocessing of agricultural products, environmental civil engineering, agricultural irrigation, robotics, automatic control in agriculture, design of agricultural machinery and tools, ergonomics in agriculture, and nanotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 15 Documents
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Search results for , issue "Vol 2, No 3 (2023): September 2023" : 15 Documents clear
Pengaruh Tipe Sistem Hidroponik dan Ukuran Wadah Nutrisi Terhadap Hasil Buah Tomat Ceri (Lycopersicum esculentum M.) Disca Anggi Pratiwi; Sugeng Triyono; Winda Rahmawati; Agus Haryanto
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.7894

Abstract

Cherry tomatoes (Lycopersicum esculentum M.) are a type of tomato that many people like because they taste sweet and are rich in vitamins. However, conventionally cherry tomatoes have not been widely cultivated in Indonesia because besides of susceptible to disease, cultivation techniques in open fields are not well understood by many farmers either. This research aims to determine the appropriate size of the nutrient jar and hydroponic system. The experiment used a completely randomized design (CRD) which was arranged factorially with three replications. The first factor is the size of the nutrition jar which consists of 3 levels, namely 500 mL (P1), 1500 mL (P2), and 2500 mL (P3). The second factor was the type of hydroponic system consisting of Wick System (HW), Dry System (HD), and Floating System (HF). The results showed that the nutrient jar size had a positive effect on evapotranspiration, number of leaves, root length, number of flowers, fruit weight, and water content of the fruit.  The hydroponic system significantly affected the number of flowers, root length, fruit weight, and in general the Wick System (HW) had better performance compared to the Dry system (HD) and the Floating system (HF).  The interaction of the two treatment factors was not significant.  The data showed that the 1500mL Wick System (P2HW) was the most optimum treatment, based on the parameters of evapotranspiration/consumption of nutrient (2.6-3 liters), number of leaves 17 leaves), root length (23.4-25.1 cm), and fruit weight (14.1-15.22 grams) as well. Keyword : Cherry tomatoes (Lycopersicum esculentum M.), hydroponic, nutrient jar size. wick system
Pengaruh Sinar UV-C terhadap Perubahan Mutu Wortel (Daucus carota L.) Selama Penyimpanan Nesti Kurnia Ningsih; Dwi Dian Novita; Tamrin Tamrin
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.7893

Abstract

Based on the survey result of vegetable crop production in Indonesia, the national carrot harvest area is 13,398 hectares spread over 16 provinces.  Meanwhile, the average carrot production in Lampung Province can reach 16,02 tons/year with a harvested area of 369 hectares (BPS, 2018).  Damage to horticultura commodities can occur if the post-harvest handling is not done well.  Many problems were found related to the decay of agricultural products due to the development of microorganisms which caused gread losses for farmers. Sterilization with UV lamps is an attempt to kill and eliminate pathogens or spoilage microbes that cause food spoilage. This sterilization aims to determine the effect of UV-C rays on the quality of carrot during storage. This research was conducted using a completely randomized design (CRD) with 2 factors, namely the irradiation distance factor (20 cm, 40 cm, and 60 cm) and the irradiation time (1-, 20, and 30 minutes). The data obtained were analyzed by ANOVA test. In the 60 cm irradiation distance treatment with an irradiation time of 30 minutes is the recommended storage distance because it can suppress root growth with an average value of 16,67 %, physical damage 14,58%, and gives the panelists the best assessment of the freshness level parameter with an average value of 3,24 (scale 5), texture with an average value of 3,25 (scale 5), and skin appearance with an average value of 3,15 (scale 5). Keywords: Carrots, Microbes, Influence, UV-C Rays, Radiation
Pengaruh Lama Fermentasi Menggunakan Mikroba Ghalkoff terhadap Perubahan Konsentrasi Kandungan Kafein Kopi Robusta Organik Kabupaten Lampung Barat Wijaya, Riky Yan; Tamrin, Tamrin; Sugianti, Cicih
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.7892

Abstract

Coffee is a beverage ingredient not only famous in Indonesia but also famous throughout the world. Caffeine is the most important compound found in coffee, caffeine functions as an element of taste and aroma in coffee beans. Excessive acid and caffeine content in coffee can have an impact on health. This study aims to determine the effect of fermentation time using microbial Ghalkoff on changes in concentration of caffeine, protein and acidity content in organic robusta coffee without reducing the taste of coffee. This research was conducted from July to August 2018 at PT. Ghaly Roelies Indonesia, Kecamatan Kemiling, Bandar Lampung. This study uses a laboratory and Kruskal-Wallis test Non-parametric statistical test based on questionnaire test on the level of preference. The results showed the effect of changes in the concentration of caffeine, protein and acidity levels in organic robusta coffee with control of the initial data resulting in a decrease in the concentration of caffeine by 27%. While the results of the N-Rank organoleptic test with Kruskal-WallisTest showed that administering long-acting organic coffee fermentation using microbial ghalkoff can increase the preference for coffee flavor, aroma and color. Keywords: Caffeine, Fermentation, Kruskal-Wallis Test, Organic Robusta Coffee.
Pemanfaatan Bonggol Jagung Sebagai Bahan Campuran Pembuatan Paving block Porous Firmansyah Ully Pratama; Winda Rahmawati; Febryan Kusuma Wisnu; Siti Suharyatun
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.7891

Abstract

The development needs of the population that continues to increase cause a mismatch in land use. This can make it possible to reduce water catchment areas in any areas with dense building growth. The use of cement in both housing and road construction results in reduced water absorption areas because cement has properties that make it difficult to absorb water, so water will become stagnant. Therefore, a cement substitute is needed to cover the shortage of cement. The addition of corn cobs in the paving block mortar is expected to increase its water absorption without reducing the compressive strength of the paving blocks. This is done to reduce corn cob waste and save on staple food costs. as well as being used as a useful product innovation in reducing corn cob waste. After printing is complete, the porous paving blocks are dried in the sun and conditioned for approximately 21 days, then the porous paving blocks are ready to be tested. The experimental design consisted of 4 treatments, namely C1, C2, C3, and C4. For the density test, values were obtained with an average of 1.327 g/cm3 – 1.628 g/cm3. For the infiltration test, a value of 0.274 mm/s was obtained. Whereas the visible test is obtained with the appropriate form of paving texture obtained on factor C4 because the resulting texture is good and there are no gaps or defects when the paving has been printed. The highest value from the water absorption test occurred in the C4 treatment with a value of 23.91%. The effect of corncob waste on Porous Paving Blocks in this study is that the more corncob waste fiber is used, the more porous paving block cavities will be, and vice versa if using less corncob waste fiber, the pore cavities will be larger. produced on porous paving blocks will be less. Keywords: Corn Cogs,  Paving block Porous.
Analisis Ergonomika Pengoperasian Bagian Pencacah pada Mesin Pencacah Pakan Ternak Multiguna Ayu Anggiana; Siti Suharyatun; Febryan Kusuma Wisnu; Warji Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8037

Abstract

The multi-purpose animal feed chopping machine is one of the feed chopping tools that many farmers use to help speed up the chopping of raw materials that will be used as animal feed. The chopping machine can be operated optimally if the machine is ergonomic so that it is safe and comfortable to operate. This study aims to analyze the ergonomics of a multi-purpose animal feed chopper in terms of anthropometry, operating workload and the level of work fatigue specifically for the chopper. This research uses quantitative methods which are supported by literature studies regarding the design of creating machine dimensions. The parameters in this study are: (1) anthropometric data consisting of Standing Finger Tip Height (TJUB), Standing Vertical Reach (JVB), and Standing Horizontal Reach (JHB); (2) the recommended weight limit that can be lifted by the operator (RWL), and (3) cardiovascular load (CVL). The research results stated that the height of the chopper hopper (100 cm) was classified as ergonomic because it was still between TJUB (66.10 cm) and JVB (183.95 cm). The operator's position from the hopper should not exceed JHB (66.00 cm). The recommended load limit (RWL) is 5.38 kg. Operation of the machine chopper section does not cause work fatigue with an average CVL of 10.71% (≤ 30%). Keywords: Anthropometry, CVL,  Pulse Rate, RWL, Work Fatigue.
Preface 2 (3) September 2023 Warji, Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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Performance Test of Hotong Seed Billing Machine (Setaria italica (L.) P. Beauv) Abrasive Roll Type with Grinding Stone Sutejo, Agus; Abdillah, Kemas Asror; Sucahyo, Lilis; Wicaksono, Dionisius Dwi; Pramuhadi, Gatot
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8059

Abstract

Indonesia has a lot of diversity, one of which is in food. Carbohydrates are basic food needs that must be met, in Indonesia there is the potential for various alternative foods. One of the alternative food ingredients producing carbohydrates is hotong. Hotong is a plant that is often found in Indonesia but has post-harvest constraints, namely in the sowing process. Therefore, research was conducted to determine the performance of an abrasive roll type grinding machine with the characteristics of hotong seeds. The research was conducted at PT. Daud Teknik Maju Pratama in November 2022. The treatment of hotong seeds that are sprayed as many as three passes with various levels of rpm speed, namely 806, 940, and 1128 rpm and carried out three repetitions at each rpm. The performance test results of the crushing machine showed the highest scattered capacity and shrinkage at a rotating speed of 1128 rpm, the highest yield and effectiveness of skin separation at a speed of 806 rpm, while at the highest polishing quality at a speed of 940 rpm. Rotating speed affects the sowing results, the faster the engine rotation speed, the quality and capacity of the sowing will increase. In addition, the tilt angle of the machine also affects the result of the sowing capacity. The terminal velocity value is influenced by the weight of the hotong seeds, the higher the weight on the sample, the higher the terminal velocity value obtained. Keywords:  Abrasive Roll, Hotong, Polisher.
Mempelajari Pembuatan Tepung dari Buah Pepaya sebagai Bahan Baku Makanan Nur Oktavia; Tamrin Tamrin; Winda Rahmawati; Sapto Kuncoro
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8038

Abstract

Papaya is one of the fruits that are liked in the community because of it has a sweet taste and rich in vitamin C. In Indonesia papaya is abundant and the price of it is relatively low so that papaya gets wasted easily.  Therefore, it is necessary to process the product to extend the shelf life and increase the value-added papaya fruit. Papaya flour is a product  of  new  innovations  of  flour  from  the  fruit  besides  papaya  flour  is  food processed products to increase the value-added agricultural produce. In this study used the temperature treatment and type of papaya,  with successive research procedures namely taking papaya fruit, peeling, slicing, soaking, drying, grinding, and sieving. The results showed that the temperature of drying can affect the moisture content of papaya flour, color, aroma, and vitamin C. The best quality of papaya flour is at 70°c, which is 23 with the desired color and aroma, resulting in an average water content of 4.9678% and vitamin C content that tends to be higher with a value of 420, 0667 (mg/100g). Drying with papaya type treatment does not significantly affect the moisture content of flour, color, aroma and vitamin C content. Keywords: Aroma, Drying, Flour, Papaya, Vitamin C
Pengaruh Pola Pengolahan Terhadap Efisiensi Pengolahan Tanah Menggunakan Traktor Tangan Adi Saputra; Siti Suharyatun; Winda Rahmawati; Warji Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8057

Abstract

 It is important to choose a tillage pattern with the aim of efficiency and effectiveness. This research aims to analyze the effect of tillage patterns using hand tractors on processing work capacity, processing time efficiency and fuel requirements. The research was conducted at the BPTP Lampung Natar Experimental Garden located in Negara Ratu Village, Natar District, South Lampung Regency, Lampung Province. The research parameters observed consisted of: work capacity, processing time efficiency and fuel consumption. The research results show that the largest work capacity value is the edge pattern with an average of 0.044 ha/hour, compared to the circular continuous pattern with an average of 0.032 ha/hour and the middle pattern with an average of 0.029 ha/hour. The highest soil processing time efficiency was the circular continuous pattern at 49.86%, then the middle pattern 44.87% and the lowest was the circular continuous pattern 40.71%. The highest fuel consumption is the middle pattern at 0.55 liters/hour, then the edge pattern at 0.53 liters/hour and the circular continuous pattern at 0.45 liters/hour. Keywords: Dry Land, Fuel Consumption, Lost Time, Work Capacity of Tillage.
Modifikasi Alat Perajang Batang Singkong (Rabakong Tipe Tep 5) untuk Meningkatkan Kapasitas Kerja Asmara, Sandi; Kuncoro, Sapto; Suharyatun, Siti; Setiawan, Firnando Anggi
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8049

Abstract

Lampung Province is the largest producer of cassava in Indonesia. However, cassava production in Lampung has been declining over the past five years due to many farmers switching to other commodities due to the long harvesting period and unstable prices. This has resulted in a buildup of cassava stem waste, requiring innovation to manage this waste. Hence, the cassava stem chopper (Rabakong) was introduced. Rabakong has been developed by Agricultural Engineering (TEP) students from the University of Lampung, starting from TEP 1, TEP 2, TEP 3, TEP 4, and TEP 5. This research method involves modifying the frame of the previous version, redesigning the components to be modified using AutoCAD software, and then fabricating and collecting data after modification. The latest modified Rabakong machine underwent significant changes in the number of blades, which are fewer but arranged spirally for efficiency in chopping and space-saving. The working capacity has increased to 207 kg/hour at 1400 rpm. Waste material has decreased to 11.39%. Fuel consumption is 2.580 liters/hour. The percentage of finely chopped materials (<0.2 mm) is only 17.19%, while coarsely chopped materials (>0.5 cm) reach 51.41%, indicating that the latest version is more suitable for coarse results.. Keywords: Cassava Stems, Design, Efficiency, Modification. 

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