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INDONESIA
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Published by Universitas Mataram
ISSN : 23018119     EISSN : 24431354     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Terhitung sejak tahun 2014, Program Studi Teknik Pertanian Fakultas Teknolgi Pangan dan Agroindustri Universitas Mataram telah menerbitkan secara online Jurnal Ilmiah Rekayasa Pertanian dan Biosistem (JRPB) sehingga dapat diakses secara luas. Jurnal ini pada umumnya memuat hasil-hasil penelitian dari mahasiswa, peneliti, akademisi, praktisi, dan pemerhati di bidang teknik pertanian dan biosistem. JRPB berupaya menjaga eksistensi penerbitannya dan berharap jurnal ini dapat menjadi salah satu media publikasi bagi semua pihak yang meminati kajian-kajian ilmiah dalam bidang ilmu Teknologi Pertanian.
Arjuna Subject : -
Articles 218 Documents
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RANCANG BANGUN DAN UJI KINERJA ALAT PENGERING TEMBAKAU MOLE TIPE EFEK RUMAH KACA (ERK) KONSTRUKSI BAMBU Wahyu Kristian Sugandi; Ahmad Thoriq; Asep Yusuf; Arif Purwonugroho
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (560.915 KB) | DOI: 10.29303/jrpb.v7i2.128

Abstract

ABSTRACT Tobacco plants are one of the leading commodities of plantations in Sumedang Regency. The processing process in tobacco which influences the quality of tobacco is the drying and condensation process. Currently the drying process of tobacco mole produced in Sukasari District still uses solar energy which is strongly influenced by weather conditions and is very vulnerable to being contaminated by other materials during drying. The drying process using solar energy requires 7-14 days depending on the weather. To speed up the drying process, it is necessary to design a bamboo construction ERK type mole dryer. The purpose of this research is to design and test the performance of ERK type tobacco mole dryer construction, so that it can speed up the drying process of tobacco in large quantities. The research method uses engineering methods through several stages of the activity process, namely: designing ERK type dryers, functional mixtures, structural designs, technical analysis and performance tests. ERK type mole tobacco dryer bamboo construction that has been made has an overall length of 5 m, a width of 3 m and a height of 2.5 m. Construction of dryers using betung and tie bamboo, walls as coatings for dryers using 6% UV plastic. Based on the analysis using Ansys software, it was found that the shear stress was still below the recommended threshold of 20.42 Pa, while the threshold of petung bamboo was 177 MPa. In the no-load test using an exaust fan, the temperature obtained after 24 hours of data collection in the ERK dryer is equal to 14áµ’C - 46áµ’C and while the temperature outside the ERK dryer is 16.4 - 30.5áµ’C. Decrease in the water content of tobacco produced by this dryer is 66% for 5 days, while outside the dryer is 71% for 14 days. Thermal and drying efficience this dryer is 17,24% and 55,79%. Key word: Design, Performance Test, ERK Dryer, Tobacco Mole, Bamboo
ANALISA SIFAT FISIK DAN KANDUNGAN GIZI PRODUK KRIM SUSU MENGGUNAKAN TEKNOLOGI SENTRIFUGASI La Choviya Hawa; Anang Lastriyanto; Anggi Akhmad Ervantri
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1161.42 KB) | DOI: 10.29303/jrpb.v7i2.130

Abstract

Milk contains complete nutritional components such as fat, protein, calcium, vitamins and other minerals. To produce skim milk and cream, centrifugation technology is needed. Centrifugation is a method that uses the principle of sedimentation, where centripetal acceleration is used to separate substances that have different densities. By centrifugation it is possible to break down the emulsion and separate the dispersion of fine liquid droplets, although in this case the suspended phase is in the form of liquid droplets which will coalesce after separation. The purpose of this study were to analyze the effect of temperature and rotational speed of centrifugation on the physical properties and nutritional content of milk cream. This study uses two parameters, namely centrifugation speed and temperature. The variation in temperature used are 30, 40 and 50 ° C and the centrifugation speed are 6000.G, 7000.G and 8000.G. The results showed that centrifugation using the conical disc centrifuge was able to separate fat from fresh milk. The highest fat content is 20.42% and the highest protein is 1.577% at 6000.G centrifugation speed. Increasing temperature and rotation speed will increase yield, density, water content and conductivity of milk cream. On the other hand, it can shorten the processing time, reduce the viscosity and boiling point of milk cream.
KAJIAN PROSES DAN KARAKTERISTIK KAIN TENUN SERAT ALAMI TANAMAN LIDAH MERTUA (Sansevieria trifasciata P.) Lisa Oktavia Br Napitupulu; Asri Widyasanti; Ahmad Thoriq; Asep Yusuf
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.599 KB) | DOI: 10.29303/jrpb.v7i2.137

Abstract

Sansevieria or known as tongue-in-law plant is an ornamental plant that is quite popular in Indonesia. This plant is very easily cultivated, easy to grow in areas with less water and sunlight. This plant contains potential natural fibers used as raw material requirements for textile industry, specifically in fabric making. The aims of this research were to determine the production process consisting and analyzing the characteristics of woven fabrics from the leaves of the tongue-in-law plant. The method of fibers extraction used the mechanical decortication process and making woven fabric is done using ATBM. The research method used is descriptive method. Based on the results of the study, it is known that the woven cloth of tongue-in-law has color characteristics with a value of L* 69.73; a* 1.86; b* 17,38; H 83,88. Besides that, it is known the mechanical characteristics of the tongue-in-law woven fabric, the tensile strength of the fabric, the weft direction of 46.05 kg and the warp direction of 19.96 kg; weft direction stretch 22% and stretch direction of the warp of 55.20%; weft direction tear strength 19.17% and wrap direction 4.60%; and air penetrating power 116.2 cm3/cm2/s.The value of the tensile strength of the tongue-in-law woven fabric produced in the warp direction does not meet the standards of SNI 08-0056-2006 woven fabric quality requirements for suit.Therefore, woven fabric produced is intended as a craft material.
KERAGAAN HASIL ANALISIS PROKSIMAT BIJI KELOR (Moringa oleifera Lam.) PADA BERBAGAI TEKNIK PENGERINGAN BIJI Bambang Budi Santoso; IGM Arya Parwata; Jayaputra Jayaputra
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (676.482 KB) | DOI: 10.29303/jrpb.v7i2.138

Abstract

One of the advantages of Moringa is the proximate component of seeds, which can be seen as a source of further planting material and also as an industrial processed base material, whose quality is largely determined by how to process the seeds. This study aims to determine the performance of the proximate component of Moringa seeds in various ways of drying seeds. The drying technique are drying using an oven at 60 ± 3 OC and at 105 ± 3 OC, drying with sunlight, and drying with wind flow (dry wind). 250 g of seed samples were used in each drying technique with three replications. Proximate analysis of Moringa seeds was carried out using the standard method by AOAC (2000). The results showed that the drying technique had a significant effect on the proximate component of Moringa seeds due to differences in drying temperatures. There was a decrease in the fat and protein content of the seeds as drying temperatures increased, especially in oven drying techniques (60 OC and 100 OC). Wind drying techniques and sun drying were better techniques for drying Moringa seeds
PREDIKSI HASIL PANEN PADI MENGGUNAKAN PESAWAT TANPA AWAK Abdul Holik; Riza Rahimi Bachtiar
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (952.013 KB) | DOI: 10.29303/jrpb.v7i2.139

Abstract

Prediction of agricultural products is needed in terms of planning and decision making as well as in policy making for national food security. One strategic commodity that needs special attention is rice. This study aims to predict rice yields using unmanned aircraft. The results of image acquisition are processed by multi thresholding method to separate leaf objects, rice panicles, and background. Furthermore, the results of sorting objects are used as input in making predictions of rice crop models using artificial neural networks. To compare the results of predictions, we weighed the weight of rice harvest on each block. The results showed that between predictions and actual correlations were very strong with R2 = 0.88, MSE (Mean Square Error) = 0.169 and MAPE (Mean Absolute Percentage Error) values ​​were -0.006. These results indicate that the prediction model of rice yields can be used for estimation purposes.
PENGARUH PERBANDINGAN VOLUME PELARUT PADA KRISTALISASI PATCHOULI ALCOHOL DARI MINYAK NILAM (Pogostemon cablin Benth) DENGAN METODE COOLING CRYSTALLIZATION Laily Rizki Safira; Asri Widyasanti; Sarifah Nurjanah
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.462 KB) | DOI: 10.29303/jrpb.v7i2.142

Abstract

Minyak nilam merupakan salah satu komoditas minyak atsiri andalan Indonesia yang sangat prospektif di pasaran. Untuk meningkatkan mutu minyak nilam yaitu dengan menghasilkan kandungan patchouli alcohol yang tinggi. Pada proses kristalisasi patchouli alcohol perlu dilakukan optimalisasi untuk mendapatkan rendemen dan mutu patchouli alcohol yaitu dengan menggunakan pelarut. Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan pelarut dalam proses kristalisasi patchouli alcohol terhadap rendemen dan mutu kristal yang dihasilkan. Metode penelitian yang digunakan adalah metode deskriptif dengan analisis korelasi-regresi. Penelitian ini diawali dengan proses distilasi fraksinasi vakum minyak nilam untuk meningkatkan kadar patchouli alcohol dalam distilat. Pada proses kristalisasi digunakan lima kondisi variabel pelarut yaitu 10%, 20%, 30%, 40%, dan 50% dan satu perlakuan kontrol. Pengamatan yang dilakukan yaitu rendemen dan mutu kristal patchouli alcohol meliputi uji warna, bulk density dan partikel density, dan melting point. Nilai rendemen kristal dan yield terbesar pada perlakuan volume pelarut 10% yaitu 52,77% dan 87,93%. Perolehan mutu yang terbaik yaitu uji warna pada perlakuan volume pelarut 50% sebesar 100,0533, bulk density pada perlakuan volume pelarut 10% sebesar 0,4351 g/mL, true density pada perlakuan 30% sebesar 1,0011 g/mL, melting point pada perlakuan 40% sebesar 57℃.
RANCANG BANGUN DAN UJI KINERJA MESIN PERAJANG TEMBAKAU MESIN PERAJANG TEMBAKAU SEMI MEKANIS SISTEM KAYUH Sandra Sandra; Yoga Aditya Pratama; Gunomo Djoyowasito; Ary Mustofa Ahmad
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (859.509 KB) | DOI: 10.29303/jrpb.v7i2.144

Abstract

Tobacco is a very promising export commodity for Indonesia. With a high selling price, tobacco can improve the economic level of the tobacco farming community. Problems that are often faced in the tobacco processing process are long and less efficient crafting processes. Therefore we need a tool to support an effective and efficient crafting process. The making of tools is done in Malang creative art welding workshop and tool testing is carried out in the power laboratory and agricultural machinery. The purpose of making this tool is to make the semi-mechanical tobacco chopper system paddle and test the performance of the chopper machine. The working principle of this machine is that the blade shaft that is connected to the pedaling pedal will rotate when the pedal is moved and will slice the leaves of tobacco that enter through the leaf input section. From the results of engine performance tests that have been made obtained the value of engine efficiency is 94% and the average capacity of 21.92 kg / hour and the power needed by the engine is 0.228 HP
EFEK TEGANGAN SEARAH (DC) TERHADAP DEWATERING PASTA TOMAT MENGGUNAKAN METODE ELECTROOSMOSIS DEWATERING Joko Prasetyo; Kamsiatun Eka Pratama; Anang Lastriyanto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (727.525 KB) | DOI: 10.29303/jrpb.v7i2.145

Abstract

Tomatoes are fruits that contain a number of important nutrients, such as carbohydrates, vitamin C, vitamin A, vitamin B1, vitamin B2, lycopene, iron, fiber, minerals, and so on. However, tomatoes include climatic fruit, which will rot if not consumed immediately. Under these conditions it’s necessary to process tomatoes into potential products such as tomato paste. Tomato paste production is done by the evaporation process to remove some of the water content. But giving heat to evaporation can damage the nutritional content of the paste. Electroosmosis dewatering is method for reducing water content by placing colloidal suspensions between two electrodes. This method is an interesting to concentrate the suspension that is sensitive to heat. Based on this, research is needed to determine the effect of electroosmosis on reducing water content in tomato paste. In this study, the DC voltage variations used were 0 V, 4.5 V, 9 V, 18 V and 36 V with 100 minutes processing time. The parameters measured based on these variations are changes in DC current during the EOD process and water content of tomato paste. The results showed that DC electric current decreases with increasing processing time, and increases with increasing voltage. the electric current at the lowest voltage variation (4.5 VDC) is 41.40 mA - 59.7 mA, while the electric current at the highest voltage variation (36 VDC) reaches 231.86 mA - 776.67 mA. The increasing DC voltage, the tomato paste water content decreases, so the best stress for the dewatering process is 36 V.
RANCANG BANGUN MESIN PASCA PANEN HANJELI Asep Yusuf; Ahmad Thoriq; Zaida Zaida; Asri Widyasanti; Ganjar Dianugraha Alam
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1148.254 KB) | DOI: 10.29303/jrpb.v7i2.146

Abstract

Food needs will continuous to increase along with population growth rate continuous to rise, so is needed the alternative foodstuff to be developed, one of is job’s tears. Before job’s tears is processed there are many process are shelling, polishing of aleuron layer, separating of job’s tears from bran, and milling.Job’s tears utilization as food as still constrained in shelling the outer leather because the leather is very hard, so is neededthe design of job’s tears shelling machine for easy in shelling before polishing. The research was conducted in July - November 2018 on Repair Laboratory Metal Wood and Rattan, Faculty ofAgro-Industrial Technology, Padjadjaran University.Research use engineering methode by doing an design activity. The result is a job’s tears post-harvest machine including sheller unit, separator unit, and polisher unit with the main components are framework, transmission system, hopper, sheller cylinder and output. This machine can use for shelling of stones job’s tears with none shelled job’s tears <35%.
KANDUNGAN LIGNIN, HEMISELULOSA DAN SELULOSA PELEPAH SALAK PADA PERLAKUAN AWAL SECARA FISIK KIMIA DAN BIOLOGI Devi Devi; Dwi Astutik; Muhammad Nur Cahyanto; Titiek F Djaafar
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 7 No 2 (2019): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.185 KB) | DOI: 10.29303/jrpb.v7i2.148

Abstract

This research aimed to determine the content of lignin, hemicellulosa and salacca midrib cellulosa and physical chemical and biological pretreatment, to determine degradation of lignin, hemicellulose and cellulose. Physical treatment used the steam explosion, chemical treatment used the NaOH and biological treatment used the Trichoderma reesei FNCC 6012. Pretreatment using the steam explosion based on temperature consisting 1200C, 1400C, and 1600C. Pretreatment using NaOH based on concentration consisting 2%, 4%, and 6%. While the pretreatment using Trichoderma reesei based on fermentation time consisting 5 days, 10 days, 15 days. The pretreatment reduced the lignin content on salacca midrib. The parameters observed lignin, hemicellulose and cellulose content. The results showed that pretreatment using Steam Explosion with a temperature of 1400C and 1600C reduced lignin levels by 16.03% and 15.90%. Pretreatment using Steam exploision temperature 1600C and Trichoderma reesei 15 days increased hemicellulose content by 35.84% and 36.21%. Pretreatment using Steam Explosion at 1600C had the best effect on cellulose at 51.09%.

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