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All Journal Jurnal Industri Hasil Perkebunan Jurnal Agritechno
Salengke Salengke
Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

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Journal : Jurnal Agritechno

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Pengembangan Alat Tanam Benih Padi Langsung (ATABELA) Metode Vakum Muhammad Tahir Sapsal; Muhammad Fadlian; Salengke Salengke
Jurnal Agritechno Jurnal Agritechno, Vol. 14, Number 1, April 2021
Publisher : Depertemen Teknologi Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/at.v14i1.415

Abstract

Direct seed planting tools or commonly abbreviated as ATABELA have been commonly used in rice cultivation in Indonesia. One of the problems that often occur in the use of this tool is the inconsistency in the number of seeds released. Besides, the seeds that are issued are usually more than three seeds, so that it can cause competition in the growth process. Therefore, it is necessary to develop direct seed planting tools with precise seed dosage. This study aims to design an applicator for planting rice seeds directly by dropping the seeds using vacuum pressure. Another goal is to know the pressure that can be generated as well as the forward speed required to produce the desired vacuum pressure. The first step in this research is to identify the pressure needed to move the seeds, then design a tool based on the pressure data. The test is carried out using a DC motor as a substitute for wheel rotation to determine the forward speed required to obtain the required pressure. The moisture content of the seeds used is 22.71% and the required pressure is 97 kPa (4 kPa under standard atmospheric pressure), the required forward speed is 2.5 m / s, so it is necessary to modify the ratio of the wheel pulley to the drive shaft.
Sorpsi Isotermi dan Daya Patah Pada Emping Jagung Pulut Kaslam Kaslam; Salengke Salengke; Helmi A. Koto
Jurnal Agritechno Jurnal Agritechno, Vol. 13, Number 1, April 2020
Publisher : Depertemen Teknologi Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (437.937 KB) | DOI: 10.20956/at.v13i1.228

Abstract

Corn production in Indonesia is quite high, namely 18,364,430 tons with a total harvest area of ​​4,131,676 ha and productivity of 41.18% (BPS, 2010). One type of corn that is potential and widely developed is pulut corn. This type of corn is very suitable in making corn chips because it has a high amylopectin content (> 80%). Pulut corn chips are produced by many small to medium scale industries as snack food products. The problem that then occurs is the handling of post-production, corn chips have a high ability of water absorption so that when fried, it does not bloom perfectly so that it is less tasty to consume. The aim of this research is to test the sorption isotherm equations of corn chips that provide the approximate balance of water content that is closest to the measured equilibrium water content. By using temperatures of 25°C, 30°C and 35°C with a combination of 40%, 60% and 80% RH, this study shows that the Henderson equation provides an estimate of the behavior of isotermic soring sorut corn chips that is at a temperature condition of 30°C closer to the results experiment and also at a temperature of 35˚C. Whereas the Chung & Pfost equation best describes the behavior of isothermic absorption at 25OC. In addition, this study also aims to determine the fragility (fracture) of pulut corn chips in various storage conditions. Research shows that the higher the RH environment, the higher the fracture value.
Co-Authors Gemah Delti Helmi A. Koto Kaslam, Kaslam Muhammad Fadlian Muhammad Tahir Sapsal Rindam Latief