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Analisis Kinetika Arrhenius Terhadap Perubahan Sifat Fisik, Kimia, Dan Kualitas Masak Beras Dengan Kombinasi Kadar Amilosa Dan Suhu Selama penyimpanan Febriana Intan Permata Hati; Joko Nugroho Wahyu Karyadi; Nursigit Bitoro; Iqbal; Diyah Yumeina; Olly Sanny Hutabarat; Mursalim; Khaeril Anwar Junaedi
Jurnal Agritechno Jurnal Agritechno Vol. 18, Nomor 2, Oktober 2025
Publisher : Depertemen Teknologi Pertanian Universitas Hasanuddin

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Abstract

Rice is one of the staple foods consumed by Indonesians. As one of the largest rice producers, problems related to rice storage are often complained about. During storage, rice changes its cooking quality and physical and physicochemical qualities. This study aimed to analyze the kinetic behavior of cooking and the physical and physicochemical qualities of Indonesian rice varieties. Rice with different amylose contents was stored for 4 months, and the collected data from the parameters of water content, whiteness, amylose content, elongation ratio, and extrudability were analyzed using the Arrhenius equation. The combination of amylose content and temperature influences the changes in the physical, chemical, and cooking properties of rice during storage. The highest increase in water content occurred in the Ciherang variety stored at a temperature of 20 °C, namely 0.0183%/week, and the whiteness, amylose content, and elongation ratio values decreased during storage. Storage at 30 °C resulted in a greater reduction in quality, with the change in Ciherang whiteness being 0.0202/week, sintanur amylose content decreasing by 0.0105%/week, and sintanur elongation ratio decreasing by 0.0348/week at this temperature. Meanwhile, the sintanur extrudability parameter experienced an increase of 0,0174g/week at a temperature of 30 ˚C. Therefore, in general, the decline in rice quality occurs more quickly at higher temperatures.
Analisis Pengaruh Konsentrasi Gula Terhadap Karakteristik Fisik Dan Kimia Manisan Buah Tomat Muhpidah Muhpidah; Amran Laga; Maura Rahmah Tahta Naula; Gemala Hardinasinta; Arfina Sukmawati Arifin; Khaeril Anwar Junaedi
Jurnal Agritechno Jurnal Agritechno Vol. 18, Nomor 2, Oktober 2025
Publisher : Depertemen Teknologi Pertanian Universitas Hasanuddin

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Abstract

Tomatoes represent a promising raw material for conversion into candied fruit due to their texture and flesh, which possess a distinctive sour taste well-suited for this application. This study seeks to evaluate the impact of varying sugar concentrations during the cooking process on the physical and chemical properties of candied tomatoes. Variations in sugar concentration influence the water content, texture, and color of the resultant candied tomatoes. The lowest water content, 4.6%, was achieved with a 60% sugar concentration. Texture analysis revealed that the highest hardness value was also obtained with a 60% sugar concentration. Additionally, the candied tomato samples exhibited the highest level of redness in the final product when a 60% sugar concentration was employed. These findings suggest that sugar concentration differentially affects the tested attributes, with a 60% concentration yielding the highest values in texture and color analysis, while resulting in the lowest water content compared to the 50% and 40% sugar concentrations.
The Effect of DAR, Asset Growth, and DER on ROA in Indonesian CPO Companies with ROE Serving as an Intervening Variable Khaeril Anwar Junaedi; Muhammad Ali; Mursalim Nohong; Arifuddin Arifuddin
Daengku: Journal of Humanities and Social Sciences Innovation Vol. 6 No. 4 (2026)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.daengku4909

Abstract

This study aims to evaluate the direct effects of the Debt to Asset Ratio (DAR), Asset Growth (AG), and Debt to Equity Ratio (DER) on the Return on Assets (ROA) of Crude Palm Oil (CPO) companies listed on the Indonesia Stock Exchange in 2025. It also examines the role of Return on Equity (ROE) as an intervening variable in explaining the relationship between capital structure, company growth, and profitability. The research methodology employs path analysis, with the path coefficient values indicated by the coefficients of multiple linear regression. The path coefficients for DAR, AG, DER, and ROE in relation to ROA were found to be 0.376, 0.025, -0.405, and 0.807, respectively, with a p-value of ?0.003. In contrast, the path coefficients from DAR, AG, and DER to ROE were -0.745, 0.128, and 0.574, respectively, with a p-value of ?0.060. When analyzing the influence of ROE on ROA, the Sobel Test results indicated that the p-values for the DAR, AG, and DER variables were 0.000, 0.060, and 0.000, respectively. These results suggest that ROA is significantly influenced directly by DAR, AG, DER, and ROE. Additionally, ROE is significantly affected by DAR, AG, and DER. It was also demonstrated that ROE plays a substantial mediating role in the relationship between ROA.