Article Per Year (5 Year)
p-Index From 2020 - 2025
3.366
P-Index
This Author published in this journals
All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Dan Industri Pangan Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Keteknikan Pertanian Jurnal Penelitian Tanaman Industri Jurnal Tanaman Industri dan Penyegar Pelita Perkebunan agriTECH Indonesian Journal of Biotechnology Widyariset Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Warta IHP (Warta Industri Hasil Pertanian) Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Penelitian Tanaman Industri (Littri) Widyariset Jurnal Pusat Inovasi Masyarakat
I Wayan Budiastra
Departemen Teknik Mesin Dan Biosistem, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Kampus IPB Dramaga, Bogor 16680
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics Social Sciences Other

Published : 56 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)

 1 
Non Destructive Determination of Soursop Firmness and Sweetness With Ultrasonic Method I Wayan Budiastra; Fila Rodotul Jannah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.253-265

Abstract

Firmness and sweetness are parameters that significantly affect the quality of soursop fruit. This study aims to examine the application of the ultrasonic method to determine the quality (firmness and sweetness) of soursop fruitnondestructively. Measurements were carried out using three different ripeness levels of soursop fruit, namely immature, ripe, and overripe. Samples were measured using an ultrasonic wave measurement system with a frequency of 50 kHz and followed by measurements of the physicochemical properties such as firmness and total soluble solid (TSS) of the fruit. The results showed that the ultrasonic wave velocity of soursop fruit at three levels of maturity ranged from 169.03–278.31 m/s, while the attenuation coefficient ranged from 9.11–19.94 dB/m. The firmness values, total soluble solids, and density were 1.37–61.59 N, 5.73-17.93 °Brix, and 1014.77–1630.13 kg/m3. There were significant correlations between ultrasonic parameters, firmness, and TSS. Classifying the level of firmness and sweetness on soursop fruit using linear regression equations based on ultrasonic wave velocity parameters produces two-equation functions with the accuracy of classifying soursop fruit on the three levels of firmness and sweetness, namely 100% and 95%. Thus the ultrasonic wave velocity parameter could be used in classifying soursop fruit based on the level of firmness and sweetness.
Design and Performance Test of Brown Rice Germinator with Automatic Environmental Control System for Production of Germinated Brown Rice Ressy Angli Permatasari; Sutrisno Sutrisno; I Wayan Budiastra; Haris Mawardi; Angga Firmansyah; Arfandi Hermawan; Elisa Eka Ari Purwanti Ningsih
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.171-181

Abstract

A germinator equipped with automatic environmental control system has been developed to produce the high quality of germinated brown rice. The germinator consists of germination chamber, temperature and relative humidity sensors, relays, actuator, and display panel so the germination process can be set up and controlled. The performance test were carried out covering the technical reliability of the system and the capability of germinator to produce germinated brown rice. The test results show that the brown rice germinator with an automatic environmental control system worked very well. The use of water misters and PTC air heaters is able to maintain humidity and air temperature inside germinator. The brown rice germinator can produce germinated brown rice with germination rate more than 80%. The result shows that the brown rice germinator can be used to produce germinated brown rice both for private and commercial use. Keywords: Brown rice, Germination, Humidity, Temperature.
Influence of Temperature and Sweating Duration on The Quality of Vanilla (Vanilla planifolia Andrews) Farida Kurniasari; I Wayan Budiastra; Dyah Wulandani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.458-466

Abstract

Indonesia has significant potential for vanilla production. However, in terms of quality, Indonesian dried vanilla still has a low standard, one of the factors being the suboptimal post-harvest technology, particularly in the sweating process. This research aims to determine the optimal temperature and sweating duration to achieve the best vanilla quality in accordance with the Indonesian National Standard (SNI). After the harvesting process, the vanilla pods were treated by soaking them in warm water at a temperature of 65°C for 3 minutes. After the vanilla pods were wilted, they were wrapped using a combination of a towel cloth-black cloth-burlap. They were then sweated in an incubator at 40°C with 70% RH and 45°C with 70% RH for 2, 4, and 6 days. The observed vanilla quality parameters include weight loss, color, hedonic tests (aroma and color), vanillin content based on the methods of SNI 01-0010-2002 and ash content based on the methods of AOAC. The result shows that the optimal temperature and duration for sweating in an incubator are 40°C and 4 days. Keywords: Postharvest, Quality, Sweating, Vanilla, Vanillin.
Design and Performance Test of Brown Rice Germinator with Automatic Environmental Control System for Production of Germinated Brown Rice Permatasari, Ressy Angli; Sutrisno, Sutrisno; Budiastra, I Wayan; Mawardi, Haris; Firmansyah, Angga; Hermawan, Arfandi; Ningsih, Elisa Eka Ari Purwanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.171-181

Abstract

A germinator equipped with automatic environmental control system has been developed to produce the high quality of germinated brown rice. The germinator consists of germination chamber, temperature and relative humidity sensors, relays, actuator, and display panel so the germination process can be set up and controlled. The performance test were carried out covering the technical reliability of the system and the capability of germinator to produce germinated brown rice. The test results show that the brown rice germinator with an automatic environmental control system worked very well. The use of water misters and PTC air heaters is able to maintain humidity and air temperature inside germinator. The brown rice germinator can produce germinated brown rice with germination rate more than 80%. The result shows that the brown rice germinator can be used to produce germinated brown rice both for private and commercial use. Keywords: Brown rice, Germination, Humidity, Temperature.
Influence of Temperature and Sweating Duration on The Quality of Vanilla (Vanilla planifolia Andrews) Kurniasari, Farida; Budiastra, I Wayan; Wulandani, Dyah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.458-466

Abstract

Indonesia has significant potential for vanilla production. However, in terms of quality, Indonesian dried vanilla still has a low standard, one of the factors being the suboptimal post-harvest technology, particularly in the sweating process. This research aims to determine the optimal temperature and sweating duration to achieve the best vanilla quality in accordance with the Indonesian National Standard (SNI). After the harvesting process, the vanilla pods were treated by soaking them in warm water at a temperature of 65°C for 3 minutes. After the vanilla pods were wilted, they were wrapped using a combination of a towel cloth-black cloth-burlap. They were then sweated in an incubator at 40°C with 70% RH and 45°C with 70% RH for 2, 4, and 6 days. The observed vanilla quality parameters include weight loss, color, hedonic tests (aroma and color), vanillin content based on the methods of SNI 01-0010-2002 and ash content based on the methods of AOAC. The result shows that the optimal temperature and duration for sweating in an incubator are 40°C and 4 days. Keywords: Postharvest, Quality, Sweating, Vanilla, Vanillin.
Predicting Oil Content of Palm Fruit Based on its Electrical Properties Mellyana, Verra; Budiastra, I Wayan; Irmansyah, Irmansyah; Purwanto, Yohanes Aris
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.933-946

Abstract

The oil content of oil palm fruit is a crucial parameter that must be determined before harvest, as it directly impacts crude palm oil (CPO) quality and processing efficiency. The conventional chemical method for oil content determination is costly and time consuming. This study aims to develop a non-destructive, accurate, and rapid method for predicting oil content in oil palm fruit based on its electrical properties. Measurements of electrical properties were taken across frequencies of 50 Hz to 5 MHz. Oil content of samples were determined by chemical method. Some pre-treatments of electrical properties were carried out and the pre-treated electrical properties were calibrated with reference oil content using simple linear regression and partial least squares regression. Linear regression model showed moderate accuracy (r = 0.61–0.81), with RMSE values between 9.54% and 12.99%. PLS regression models using admittance (r = 0.99, R² = 0.98, SEP 2.20%, RPD 7.99), resistance (r = 0.98, R² = 0.97, SEP 2.62%, RPD 5.56), and impedance (r = 0.98, R² = 0.95, SEP 3.16%, RPD 4.68) produced high prediction accuracy. The results confirm that electrical properties can be used to predict oil content in oil palm fruit rapidly and non destructively. Keywords: Electrical properties, Linear regression, Oil content, PLS.
Co-Authors . Saputera . Sutrisno A. Trisnobudi Adiarifia, Nissa Agus A Munawar Ahmuhardi Abdul Azis Alla Asmara Amin Rejo Amoranto Trisnobudi Angga Firmansyah Anggie Yulia Sari Arfandi Hermawan Aris Purwanto Aryanis Mutia Zahra Baihaqi Baihaqi Bambang Haryanto Bambang Haryanto Bambang Haryanto Bambang Haryanto BAMBANG S. PURWOKO Bambang S. Purwoko Deva Primadia Dheni Mita Mala Diego Mauricio Cano-Reinoso Distriani, Putri Ayu Ira Dwi Dian Novita Dyah Wulandani Ei Mon Kyaw Elisa Eka Ari Purwanti Ningsih Elizabeth Sonya Lumbantoruan Emmy Darmawati Farida Kurniasari Fila Rodotul Jannah Fiona Hanberia Innayah Firmansyah, Angga Hadi K. Purwadaria Hadi K. Purwadaria Hadi K. Purwadaria Hafiz Fajrin Aditama handayani, yossi Haris Mawardi Harmi Andrianyta Hermawan, Arfandi Herna Permata Sari I Dewa Made Subrata Indah Kurniasari Irmansyah . Jajang Juansah Jajang Juansah Jati Sumarto Putro Jonni Firdaus, Jonni KUDANG B. SEMINAR Kurniasari, Farida La Rianda LADY C. E. CH. LENGKEY Lady Lengkey Lalu Hendri Setiawan Mar'atus Sholihah mardiantono Mardiantono Mawardi, Haris Mohamad Solahudin Nelwan, Leopold Oscar Ningsih, Elisa Eka Ari Purwanti Noneng Fahri Nur Arifiya Okasyari, Chorida Omil Charmyn Chatib Permatasari, Ressy Angli Ressy Angli Permatasari Rini Rosita Rizal Syarief Rizky Wiradinata Rizky Wiradinata Rokhani Hasbullah Ruri Wijayanti Samsudin Samsudin SEDARNAWATI YASNI Semin Semin Shinichiro Kuroki Siti Djamila Slamet Susanto Slamet Widodo Slamet Widodo Slamet Widodo Sobir Sobir Sri Agustina Sri Citra Yuliana Madi Sugiyono . Sugiyono . Sukrisno Widyotomo Suroso . Suroso . Suroso Suroso Sut risno Sutrisno SUTRISNO Sutrisno - Sutrisno . Sutrisno Mardjan Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno, Sutrisno Tarisa Fadillah Titis Priyowidodo Trisma Rezeki Zairisman Usman Ahmad Verra Mellyana Vita N. Lawalata Wendianing Putri Luketsi Wiranda G. Piliang Y. Aris Purwanto Yohanes Aris Purwanto Yul Y Nazaruddin Yunisa Tri Suci