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All Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Agrikan: Jurnal Agribisnis Perikanan
Agusta, Waqif
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Engineering Environmental Science

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The effect of bleeching technic and storage temperature on the quality of (Lactuca sativa L) during storage Rosdiana, Rosdiana; Agusta, Waqif; Kurniawan, Endang
Agrikan Jurnal Agribisnis Perikanan Vol. 14 No. 2 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1445.434 KB) | DOI: 10.52046/agrikan.v14i2.818

Abstract

The purpose of this study was to determine the effect of the lettuce washing technique with water and dish soap, the storage temperature, and the combination of the two treatments on the quality of the lettuce. This research was conducted in June - August 2020 at Puspiptek Serpong, South Tangerang. The experimental design used was a two-factorial completely randomized design and three replications. The first factor is the technique of washing with water, control and dish soap; the second factor is the temperature of 50C and 250C. Data analysis used F and BNJ test at 5% level. The variables observed were weight loss, color, water content, total sugar content, and respiration rate of O2. The results show that different washing techniques only affect the variables of weight loss and sugar content. The storage process with a temperature of 50C can maintain the quality of lettuce for five days of storage. The combination of dishwashing treatment with dish soap and a storage temperature of 50C gave better results than other combinations.
Optimizing Vane Number for Enhanced Performance of Mist Blower Nozzle in Agricultural Spraying Pramuhadi, Gatot; Walpuri, Chitra Gusti Indah; Sidik, Ahmad Jaelani; Agusta, Waqif
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.794-804

Abstract

The objective of this study is to optimize the number of vanes equipped in the propeller of a mist blower's nozzle. Performance tests were conducted on the approved sprayer test bed, also known as a patternator, to measure several parameters, including effective spraying discharge, effective spraying width, spraying angle, effective spraying height, effective spraying range, droplet diameter, and droplet density. The vane number was optimized using the weighting method. The results indicate that increasing the number of vanes used is directly correlated with higher values of effective spraying width (ESW), spraying angle, effective spraying range (ESR), and droplet density. Conversely, it is inversely correlated with the value of effective spraying discharge (ESD), effective spraying height (ESH), and droplet diameter. The vane number was optimized using the weighting method. The most effective results in the mist blower performance test are achieved by using 12 vanes. This configuration produces droplets with a diameter of 195.44 ±9.68 μm and a density of 320 ± 17.44 droplets/cm2. The mist blower also has ESW of 136 ± 1.73 cm, ESH of 68.14 ± 4.19 cm, ESD of 4.41 ± 0.14 L/min, and ESR of 5.76 ± 0.04 m. Keywords: Agricultural spraying, Mist blower, Nozzle optimization, Performance evaluation, Vane number.
Co-Authors Gatot Pramuhadi Kurniawan, Endang Rosdiana Rosdiana Sidik, Ahmad Jaelani Walpuri, Chitra Gusti Indah