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Salengke, Salengke
Departemen Teknik Pertanian Fakultas Pertanian Universitas Hasanuddin, Makassar
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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Journal : Salaga Journal

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Investigating the Influence of Blanching on the Drying Characteristics and Sorption Isotherm of Cherry Tomatoes (Lycopersicum Esculentum Var. Cerasiforme) Selpiah, Selpiah; Salengke, Salengke; Salim, Iqbal; Sapsal, Muhammad Tahir
Salaga Journal Volume 01, No. 1, June 2023
Publisher : Program Studi Teknik Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/salaga.v1i1.1107

Abstract

Cherry tomatoes have a fairly short shelf life due to the influence of high water content and enzymes present in the fruit. Blanching is used to inactivate enzymes that can damage the quality of tomatoes. This research was conducted with the aim of studying the effect of blanching on the drying rate and sorption isotherm of cherry tomatoes. Blanching was done at 60 °C, 70 °C, 80 °C. After blanching, the samples were dried at 60 °C. After drying the samples were stored in a desiccator containing a solution for 24 days using NaOH, MgCl2, K2CO3, NaNO2, and NaCl. The results obtained in the blanching process have a lighter color than before blanching based on the L.a.b value. The moisture content of the sample during drying can be seen from the MR and drying rate which have almost the same value, only the time to reach 12% moisture content is different. The sorption isotherm process in the control treatment, blanching with temperatures of 60 °C, 70 °C and 80 °C with time (15, 30 and 45 minutes) experiences two processes, namely desorption (water release) at low RH and absorption (water binding) which occurs at high RH. The conclusion obtained is that the sorption process only occurs at 60 °C blanching with a time of 15 minutes at low RH and other treatments experience desorption.
Production of Biochar from Sago Dregs Using NaOH Pretreatment and Microwave Pyrolysis Syam, Jabal Nur; Diyah, Yumeina; Salengke, Salengke
Salaga Journal Volume 03, No. 1, June 2025
Publisher : Program Studi Teknik Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/salaga.v3i1.1809

Abstract

The waste from sago dregs generated during the starch extraction process has not been optimally utilized and has the potential to cause environmental pollution. This study aimed to process sago dregs into biochar through chemical pretreatment (NaOH soaking) and physical pretreatment (microwave pyrolysis) and applied it as raw material for briquettes. The research methods consisted of (1) Pretreatment of sago dregs with 10% and 30% NaOH for 6 hours, (2) Pyrolysis using a 540-watt microwave at 300–400°C for 20 minutes, and (3) Briquette production using sago starch binder at a 10:1 ratio. The analysis results indicated that 30% NaOH pretreatment significantly reduced cellulose, hemicellulose, and lignin contents to 1.07, 0.52, and 1.10%, respectively, compared to the 10% NaOH (6.11%, 5.71%, and 6.03%). The moisture content of biochar decreased to 2.53–2.65%, in accordance to SNI 06-3730-1995 standard of 10% maximum . However, the ash content increased to 45.99–53.78%, exceeding the SNI limit of 15%. Briquettes made from 30% NaOH-pretreated biochar had the longest burning time (26.54 minutes), outperforming the 10% NaOH (12.32 minutes). This study found that sago dregs have the potential to serve as a high-quality biochar raw material due to its moisture content meets the SNI standard, although its high ash content limits its use as fuel. Sago dregs biochar briquettes can be considered a renewable energy alternative, while the high ash content offers potential applications in soil or water remediation.
The Effect of Drying Air Velocity and Grain Mass on the Drying Rate of Inpari 42 Grain in a Fluidized Bed Dryer. Ibrahim, A. Muh. Farhan Qibran; Salengke, Salengke; Salim, Iqbal; Hardinasinta, Gemala
Salaga Journal Volume 01, No. 1, June 2023
Publisher : Program Studi Teknik Pertanian Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70124/salaga.v1i1.1140

Abstract

Statistical data shows that rice production increases every period along with the increase in demand. Harvested paddy must be dried immediately to avoid damage due to microbial attack that can live in high moisture content. Therefore, the main objective of drying is to reduce the moisture content from the harvest moisture content (23-27%) to a safe moisture content for storage (14%). Currently, there are several dryers made as a solution in post-harvest handling of grains such as green beans, soybeans, grain and so on. One example of this dryer is the Fluidized Bed Dryer. This tool is a mechanical dryer that can be used in drying grain. The advantage of this tool is that the temperature can be controlled and can produce quality and uniform drying results. The purpose of this study was to determine the drying characteristics of Inpari 42 grain using a fluidized bed dryer. This research method uses speed variations of 1.5 m/s, 2.0 m/s, and 2.5 m/s with sample masses of 200 g, 250 g and 300 g, using a temperature of 55 ℃. The research parameters include moisture content, drying rate, damaged grain. The drying process shows that the change in sample mass is influenced by the air velocity used. Along with the increase in moisture content, the drying rate will affect the rate of drying obtained in this study the drying rate pattern is decreasing. It can be concluded that air velocity affects the drying rate and air velocity affects the cracked grain.
Co-Authors Abdul Azis Abdul Azis Abdul Waris Ahmad Munir AMIN NUR Aminuyati Amran Laga Andayani, Nining Anita, Andi Suci Anshori, Muhammad Fuad Anugrah Feri Hermanto Baehaqi Baharuddin Baharuddin Bahmid, Nur Alim Bilang, Mariyati Daniel Useng Dedianto Pasomba Dirpan, Andi Diyah Yumeina Diyah, Yumeina Djalal, Muspirah Efendy, Roy Fadhli, Nur Farid BDR, Muh. Farid, Muh Februadi Bastian FM, A. Syahrul Ramadhan Gemala Hardinasinta Haerani Hanifa, Arini Putri Hardinasinta, Gemala Hishar Mirsam Husnul Mubarak Ibrahim, A. Muh. Farhan Qibran Ifayanti Ridwan, Ifayanti Intan Febriana Iqbal iqbal salim Jumriah Langkong, Jumriah Junaedi Muhidong K. Sukendar, Nandi Khaeril Anwar Junaedi Mahmud Achmad Mahmud Achmad, Mahmud Mamang Mamang, Mamang Mochammad Imron Awalludin Muhammad Azrai, Muhammad MUHAMMAD RIZAL Muhammad Tahir Sapsal Mursalim Novianti, Fira Olly Sanny Hutabarat Pati, Sakka Prahesti, Kusumandari Indah Priyanto, Slamet Bambang Rafiuddin, Rafiuddin Sapsal, Muhammad Tahir Selpiah Selpiah, Selpiah Septianti, Erina Sitti Nur Faridah Suhardi Suriani Suriani Suryono Syahrial Sabaniah Syam, Jabal Nur Syamsuri, Riswita Syarifuddin, Adiansyah THAMRIN, SULAEHA Tutik Kuswinanti Willy Bayuardi Suwarno Yumeina, Diyah YUNUS MUSA Z, Bunyamin