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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Hortikultura Indonesia (JHI) Jurnal Keteknikan Pertanian Agrointek Jurnal Hortikultura Jurnal Penelitian Pascapanen Pertanian Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Tanaman Industri dan Penyegar Indonesian Journal of Biotechnology Warta IHP (Warta Industri Hasil Pertanian) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Akuntansi Jurnal Riset Teknologi Industri Edukasi: Jurnal Ilmiah Pendidikan Anak Usia Dini

Sutrisno Mardjan

Department Of Mechanical And Biosystem Engineering, Faculty Of Engineering And Technology, IPB University

Author-ID : 4328444

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Perlakuan Air Panas diikuti Pencelupan dalam Larutan CaCl2 untuk Mempertahankan Kualitas Buah Belimbing Manis (Averrhoa Carambola L.) Khoirul Mukhtarom; Sutrisno -; Rokhani Hasbullah
Jurnal Keteknikan Pertanian Vol. 4 No. 1 (2016): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractHot water treatment (HWT) followed by CaCl2 solution immersion was well performed to evaluate its effect on the quality of star fruit (Averrhoa carambola L.). The star fruit was dipped in hot water at the temperature 42±0.2OC for 5 and 10 minutes, then dipped in the 1 and 3% CaCl2 solution and stored at 10OC for 27 days. The control was conducted by storing star fruits directly without HWT and CaCl2 solution immersion at the same temperature. The parameter observed in this work were calcium content of the sample, which was measured at the beginning of storage after treatment, microbial total counted at 0, 12, and 24 days of storage, as well as weight loss and browning index were measured every three days during storage. The result evidenced that the HWT were able to suppress the growth of microbes and maintainedfruit color during storage, whereas the application of CaCl2 increased calcium content in star fruit, but it caused fruit damage which increased the number of microbial total and weight loss also decreased of firmness so that the shelf life of fruit shorter.AbstrakPerlakuan air panas (hot water treatment (HWT)) diikuti dengan pencelupan dalam larutan CaCl2 telah dikaji untuk melihat pengaruhnya terhadap mutu buah belimbing manis. Buah belimbing dicelup dalam air panas pada suhu 42±0.2OC selama 5 menit dan 10 menit, kemudian dicelup dalam larutan CaCl2 1% dan 3%) dan disimpan pada suhu 10OC selama 27 hari. Sebagai control, buah belimbing tidak diberi perlakuandan disimpan pada suhu yang sama. Parameter yang diamati meliputi kandungan kalsium diukur pada awal penyimpanan setelah perlakuan, total mikroba diukur pada hari penyimpanan ke-0, 12, dan 24, serta susut bobot dan browning index yang diukur setiap tiga hari selama penyimpanan. Hasil penelitian menunjukkan bahwa HWT mampu menekan pertumbuhan mikroba dan mempertahankan warna buah selama penyimpanan, sedangkan aplikasi CaCl2 meningkatkan kandungan kalsium dalam buah belimbing,akan tetapi menyebabkan buah mengalami kerusakan yang berdampak pada meningkatnya total mikroba dan susut bobot serta menurunnya kekerasan sehingga memperpendek umur simpan buah.

Desain Sistem Kontrol dan Monitoring Kondisi Udara pada Controlled Atmosphere Storage Berbasis Mikrokontroler Arduino Uno Widyaningrum Widyaningrum; Yohanes Aris Purwanto; Sutrisno Mardjan
Jurnal Keteknikan Pertanian Vol. 6 No. 1 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractStorage by controlling the composition of air or oxygen and carbon dioxide concentration settings is called controlled atmosphere storage. Controlled atmosphere storage aims at controlling metabolism of fresh product to extended the shelf-life. The concentration of oxygen and carbon dioxide in product aremaintained at a desired concentration. The objective of this research was to design a control and monitoring system of oxygen, carbon dioxide, temperature and relative humidity in the storage by using Arduino Uno microcontroller. Design approach consists of functional and structural design. The main function of thesystem control were to control gas injection, open and close the solenoid valve, control the amount of injection, and reading the sensor. Measurements and testing included sensor calibration and functional testing of the control and monitoring system with no-load conditions. Analysis of the experiment resultswas conducted by using statistical analysis of repeated measures ANOVA. The result of observation and measurements of temperature with no-load conditions was 9.88ºC, RH 73.73%, concentration of carbon dioxide 2.22% and concentration of oxygen 4.63%. Accuracy between setpoint and actual temperature was of 98.84%. Accuracy between setpoint and actual RH was of 97.55%. Accuracy between setpoint and actual oxygen was of 83.98%. Accuracy between setpoint and actual carbon dioxide was of 74.26%.AbstrakPenyimpanan dengan cara pengaturan komposisi udara atau pengaturan konsentrasi oksigen dan karbondioksida dikenal dengan penyimpanan dengan pengendalian atmosfer. Teknik atmosfer terkendali sekitar produk bertujuan untuk mengendalikan metabolisme produk segar sehingga masa simpan dapat diperpanjang. Konsentrasi oksigen dan karbondioksida disekitar produk dijaga pada suatu konsentrasi yang diinginkan. Penelitian ini bertujuan untuk merancang sistem kontrol dan monitoring oksigen dan karbondioksida serta suhu dan kelembaban di dalam ruang penyimpanan dengan mengimplementasikan mikrokontroler Arduino Uno. Pendekatan rancangan terdiri dari dua jenis yaitu rancangan fungsional dan rancangan struktural. Fungsi dan struktur utama dari sistem yang dibuat adalah sistem pengontrolan terhadap injeksi gas, buka tutup solenoid valve, mengontrol lama injeksi, dan melakukan pembacaan sensor. Pengukuran dan pengujian meliputi kalibrasi sensor dan pengujian fungsional kinerja kontrol dan monitoring. Analisis hasil percobaan dilakukan dengan menggunakan analisis statistik repeated measures ANOVA. Hasil pengamatan dan pengukuran suhu adalah 9.88ºC, RH 73.73%, karbondioksida 2.22% dan oksigen 4.63%. Perbandingan antara setpoint dan aktual diperoleh akurasi suhu 98.84%. Perbandinganantara setpoint dan aktual diperoleh akurasi RH 97.55% Perbandingan antara setpoint dan aktual diperoleh akurasi oksigen 83.98%. Perbandingan antara setpoint dan aktual diperoleh akurasi karbondioksida74.26%.

Flow Behavior of Isolate Protein from Soybeans var. Grobogan and Whey Protein Isolate at Acidic Condition under Various Heating Times Warji Warji; Sutrisno Suro Mardjan; Sri Yuliani; Karin Schroën; Nanik Purwanti
Jurnal Keteknikan Pertanian Vol. 6 No. 2 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractFlow behavior of Soy Protein Isolate (SPI) suspension and Whey Protein Isolate (WPI) solution at pH 2.0 under various heating times were studied using steady shear viscosity measurements. Shear rate sweeps with increasing shear rates (up ramp) was performed to investigate the structural breakdown of the proteins during shearing. Down ramp shear rates were performed to check structural recovery of the proteins. The results showed that unheated SPI suspension has Newtonian flow; meanwhile, unheated WPI solution was slightly shear thickening. Heating the proteins at 80ºC for 4, 8, 12, and 16 h changed flow behavior of the proteins. Flow curve of SPI suspension heated for 12 h and 16, fitted Ostwald model with flow behavior index (n) of 0.625 and 0.264, respectively. This index indicates pseudoplastic (shear thinning) behavior, which also observed in heated WPI solution. The changes in flow behavior was attributed by the changes in protein structures, i.e., globular structures into fibrillar structures under prolonged heating at acidic condition. This conversion also increased the apparent viscosities of the proteins. SPI fibrils have higher apparent viscosities than WPI fibrils. This difference might be attributed to the detail fibril structures. SPI fibrils have branched and curvy structures; meanwhile, WPI fibrils are long and straight.AbstrakPerilaku aliran suspensi Soy Protein Isolate (SPI) dan larutan Whey Protein Isolate (WPI) pada pH 2.0 pada berbagai lama pemanasan diinvestigasi. Shear rate yang meningkat diaplikasikan untuk mengetahui kerusakan struktur protein selama geseran. Shear rate dengan pola menurun dilakukan untuk mengetahui apakah strukturprotein kembali ke struktur awal setelah mengalami kerusakan. Hasil penelitian menunjukkan bahwa suspensi SPI yang tidak dipanaskan memiliki perilaku aliran Newtonian; sementara larutan WPI yang tidak dipanaskan bersifat sedikit shear thickening. Pemanasan protein pada 80ºC selama 4, 8, 12, dan 16 jam mengubah perilaku aliran suspensi SPI dan larutan WPI. Kurva aliran suspense SPI yang dipanaskan selama 12 jam dan 16 jam sesuai dengan model Ostwald dengan indeks perilaku aliran (n) masing-masing 0.625 dan 0.264. Indeks ini mengindikasikan perilaku aliran bersifat pseudoplastic (shear thinning), yang juga teramati pada larutan WPI yang dipanaskan. Perubahan perilaku aliran disebabkan oleh perubahan struktur protein dimana SPI dan WPI awalnya memiliki struktur globular lalu menjadi struktur fibrillar akibat pemanasan yang lama pada kondisi asam. Perubahan struktur juga meningkatkan nilai apparent viskositas, dimana viskositas fibril SPI lebih tinggi daripada fibril WPI. Perbedaan ini diakibatkan oleh perbedaan struktur fibril protein dimana SPI berbentuk fibril yang bercabang dan melengkung sedangkan WPI berbentuk fibril yang lurus dan panjang.

Evaluasi Mutu Beras dengan Kesesuaian Good Handling Practices dan Good Manufacturing Practices di Kabupaten Bogor Dwi Zuwarman; Sutrisno Suro Mardjan; Rokhani Hasbullah
Jurnal Keteknikan Pertanian Vol. 8 No. 1 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.1.1-8

Milled rice is one of the most important agricultural commodities for Indonesian people as staple food. Consumers tend to not know how to differentiate good or low quality of rice. Rice mill (RMU) in Bogor Regency mostly do not have quality standard comply with Indonesian National Standard (SNI). The purpose of this study was to identify the quality of rice and milled rice produced by RMU in Bogor Regency and evaluate the suitability of the application of rice and milled rice handling in RMU to Good Handling Practices (GHP) and Good Manufacturing Practices (GMP). The parameters measured were analysis of rice and milled rice quality and data analysis. The data resulted from measuring the quality of grain and rice was obtained from interview and observation. The results showed that four RMU rice samples not included in the class category SNI 6128: 2015 and two samples included in Medium III (M-3). On the postharvest handling conformity level was 44.92 percent for GHP and 60.25 percent for GMP. GHP and GMP guidelines were not yet fully applied by rice milling unit (RMU).

Pengaruh Amplitudo Ultrasonik dan Waktu Ekstraksi Terhadap Rendemen dan Mutu Oleoresin Pala I Wayan Budiastra; Sutrisno Suro Mardjan; Ahmuhardi Abdul Azis
Jurnal Keteknikan Pertanian Vol. 8 No. 2 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.2.45-52

Nutmeg oleoresin is one of the nutmeg derivative products with high values produced from the extraction process. The conventional extraction process using maceration takes a long time so that it is less suitable for industries needs. This study aims to examine the UAE direct sonication method for increasing yield and quality of nutmeg eleoresin. Nutmeg with optimal maturity level were harvested, dried and milled into 60 mesh particle size. Nutmeg powder of 200 g was placed in beaker glass filled with etanol 800 ml (material and solvent ratio 1:4) and UAE was carried out using a sonicator with a frequency of 20 kHz and power of 700 W. Four ultrasound amplitude levels (45, 60, 75, 90%) and four levels of extraction time (30, 45, 60, 75 minutes) were taken as UAE treatments. Extraction using maceration at room temperature for 7 hours was done as control. The results showed that the greater the amplitude of the ultrasound, the higher the yield of nutmeg oleoresin. The longer the extraction time, the higher the yield of nutmeg oleoresin. Ultrasonic assisted extraction can increase nutmeg oleoresin yield by 11 to 52% and faster time (<= 1,25 hour) than maceration extraction method (7 hours).

Integrasi Metode Gravitasi dan Metode Perbandingan Eksponensial untuk Penentuan Pusat Distribusi Pangan di Kabupaten Halmahera Selatan Syamsul Bahri; Sutrisno Suro Mardjan; Emmy Darmawati; Bambang Pramudya
Jurnal Keteknikan Pertanian Vol. 8 No. 2 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.2.63-70

AbstractThis study aims to determine the location of distribution centers in each islandgroup in South Halmahera Regency. Data sources were obtained from survey resultsand literature studies. Integration of Gravity Models and Exponential ComparisonMethods are used to determine the best location. Subdistrict of Kayoa as the locationof distribution centers for Kayoa-Makian islands group, Subdistrict of West Gane forGane islands group, Subdistrict of Bacan for Bacan-Kasiruta islands group, and theObi Subdistrict for Obi Islands group. The location chosen as the distribution centerin each island group is a main subdistrict which physically has better resourcecarrying capacity.

Models of Moisture Sorption Isotherm and The Estimation of Red Ginger Powder Shelf Life in Various Packaging Materials Riska Juliana; Rokhani Hasbullah; Sutrisno Suro Mardjan
Jurnal Keteknikan Pertanian Vol. 8 No. 1 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.1.23-28

Abstract In the processing, the red ginger powder was dried at 50°C. Red ginger powder is hygroscopic, so it is easy to absorb moisture. This research aims to determine (i) the isothermic absorption curve model in red ginger powder with different fineness modulus and (ii) the expiration date using the critical moisture content method in various types of packaging materials. Moisture sorption isotherm of red ginger powder was determined by the static gravimetric method at 300C. The relationship equilibrium moisture content between relative humidity (RH) is described by the Hasley, Chen-Clayton, Henderson, Caurie, and Oswin Models. The Estimated shelf life is determined using the ASLT (accelerated shelf-life testing) method and calculated using the Labuza model with a critical water content approach. The results obtained that moisture sorption isotherm red ginger powder has sigmoid shape a type II. Henderson is the model that illustrates the accuracy of the ISA curve of red ginger powder of 60 mesh particle size while the Chen-Clayton Model illustrates the accuracy of the ISA curve of red ginger powder of particle size of 80 mesh. The shelf life of red ginger powder is 60 mesh particle size and using HDPE, PP, and aluminum foil packaging which is stored at 75% RH and 300C temperature is 118.85 days, 467.63, and 609.26 days, respectively. The shelf life of red ginger powder 80 particle size is 148.17 days, 582.98 days and 759.54 days.

Komposisi Fisikokimia Tepung Ubi Kayu dan Mocaf dari Tiga Genotipe Ubi Kayu Hasil Pemuliaan Nafilawati wa ode; Emmy Darmawati; Sutrisno Suro Mardjan; Nurul Khumaida
Jurnal Keteknikan Pertanian Vol. 8 No. 3 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.3.97-104

Faktor penting yang mempengaruhi karakteristik fisikokimia tepung adalah bahan baku tepung, genotipe/varietas serta proses pengolahan dalam pembuatan tepung. Penelitian ini bertujuan untuk mengevaluasi komposisi fisikokimia tepung ubi kayu dan mocaf dari tiga genotipe ubi kayu yaitu GX, G053 dan G390 yang merupakan hasil pemuliaan tim Croop Improvement IPB. Evaluasi komposisi fisikokimia dilakukan dengan menganalisis kadar air, karbohidrat, protein, lemak, abu, kadar HCN, rendemen dan derajat putih. Berdasarkan hasil analisis diketahui bahwa setiap genotipe ubi kayu memiliki komposisi fisikokimia yang berbeda-beda dipengaruhi oleh jenis genotipe dan proses pengolahannya. Komposisi fisikokimia tepung ubi kayu dari genotipe G053 memiliki keunggulan rendemen (26.10%±0.01), karbohidrat (89.11%±0.015), protein (2.63%±0.014), derajat putih tertinggi (96.89%±0.02) serta kadar air terendah (6.73%±0.004). Tepung dari genotipe G390 memiliki keunggulan kadar abu (0.74%±0.015) dan lemak (0.59%±0.005) terendah. Tepung GX memiliki keunggulan HCN terendah (0.40 ppm±0.198). Komposisi fisikokimia mocaf dari genotipe G053 memiliki keunggulan yaitu karbohidrat, derajat putih tertinggi (98.44%±0.02) dan kadar air terendah (6.65%±0.004). Mocaf dari genotipe G390 memiliki protein (3.01%±0.018) tertinggi kadar abu (0.28%±0.002) dan lemak terendah (0.57%±0.004). Mocaf dari genotipe GX memiliki keunggulan dengan kadar rendemen tertinggi (28.57%±0.08) dan HCN terendah (0.20 ppm±0.10).

Detection of Chilling Injury Symptoms of Salak Pondoh Fruit during Cold Storage with Near Infrared Spectroscopy (NIRS) Sutrisno Suro Mardjan; Jeri Indriyantoro
Jurnal Keteknikan Pertanian Vol. 10 No. 1 (2022): April 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.1.69-76

One of the treatment methods that is suitable for maintaining the quality of salak pondoh fruit is cold storage. However, cold storage of salak pondoh fruit below its optimum storage temperature (15°C) can cause chilling injury/CI. This research aims to develop a non-destructive method of determining the CI symptoms of salak pondoh fruit during storage at 5°C with NIRS. Measurements were carried out for 14 days by measuring the CI parameters (pH and IL/ion leakage) and the NIR reflectance spectra. The best PLS method NIR calibration model for estimating pH was generated using the Savitzky-Golay Smoothing pretreatment with rk= 0.81, rv =0.76, SEC= 0.12%, SEP =0.12%, CV= 2.97%, RPD= 1.66, and consistency =100.06%. The IL slope of salak pondoh fruit correlated with the pH in a linear pattern relationship with the equation y = 0.1735x - 0.4305. The highest IL slope value was obtained on the 4th day of storage which means that IL has reached its peak, and CI was predicted to have occurred on the 4th day of storage.

KAJIAN KARAKTERISTIK FISIK, MEKANIK DAN AERODINAMIK DAUN TEH HASIL PETIKAN YANG TELAH DILAYUKAN Agus Sutejo; Mardjan Suro Sutrisno; Hermawan Wawan; Desrial Desrial
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 3 (2020): September 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i3.171-183

The design of the wilted tea stalk and leaf separation system aims to improve the quality of the tea produced especially by separating the tea leaves and stalks at the beginning of the process. Stages that are needed to be done include designing a chopper machine that is capable of chopping tea stems and leaves to a certain size and designing stem and leaf separation system with the pneumatic principle with suction. In this study, physical, mechanical and aerodynamic characteristics of tea leaves were measured. The result showed that force to release a leaf is in the range of values between 12.24-16.17 N smaller than the need for the cutting force of the stem and leaves and the greatest difference in force is achieved at a water content between 55 and 58% bb (leaves) and 66-68% bb (stalk). The leaf terminal velocity is <3 m s-1 while the tea terminal velocity is > 9 m s-1. Tea leaf yield value is very important as a reference in testing the performance of tea and tea leaf separator machines where the average leaf yield is 77.33% and the average stem yield is 22.67%. Keywords: characteristic of tea leaves, engineering, separation of tea leaves, withering of tea leaves

Co-Authors ,, Mawardi ,, Nelitawati ,, Sudarti ,, Susanti Adiarifia, Nissa Agus Ghautsun Niam Agus Sutejo Ahmuhardi Abdul Azis Andi Ulfa Hardianty Syahrullah Andriani Lubis Aris Purwanto Aryanis Mutia Zahra Asmeri Lamona Aulia Fuad Rahman Bambang Pramudya Desi Kris Tanti Ritonga Desrial Dheni Mita Mala Diang Sagita Diego Mauricio Cano-Reinoso Dwi Zuwarman Ei Mon Kyaw Eko Heri Purwanto Emmy Darmawati Farah Fadhilah Widiaputri Fitriani, Ajeng Pipit Ginanjar Yoga Pratama Heru Kuswantoro I Wayan Budiastra Ihsan, Ghazian Satya Ilmi, Nadhirah Karimatul Jeri Indriyantoro Karin Schroën Khoirul Mukhtarom Kudang Boro Seminar Laras Putri Wigati Laras Putri Wigati Leonardo Surbakti Lilik Pujantoro mardiantono Mardiantono Muyassar Allam Suyuthi Nafilawati wa ode Nanik Purwanti Nurul Khumaida Paluseri, Fachira Ulfah Rika Permata Sari, Putri Riska Juliana Roedhy Poerwanto Rokhani Hasbullah Samsudin Samsudin Shinichiro Kuroki Siti Mariana Widayanti Slamet Widodo Sri Yuliani Sugiyono . Supeno, dan Agus Syamsul Bahri Tineke Mandang trialita aprilia lita Usman Ahmad Warji Warji Wawan Hermawan Widyaningrum Widyaningrum Yusi Dwi Setyoningtyas

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