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All Journal IJEBD (International Journal Of Entrepreneurship And Business Development) Jurnal Segara Authentic Research of Global Fisheries Application Journal (Aurelia Journal) Journal of Sustainable Technology and Applied Science
Sumitro, Martinus Robinson
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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ANALYSIS OF ARABICA COFFEE CHARACTERISTICS AND DRYING METHOD ON ARABICA COFFEE FLAVOR USING ANALYSIS OF VARIANCE Sumitro, Martinus Robinson; Hutabarat, Julianus; Achmadi, Fuad
Journal of Sustainable Technology and Applied Science (JSTAS) Vol. 6 No. 1 (2025): Journal of Sustainable Technology and Applied Science, May 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Nasional (ITN) Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jstas.v6i1.9034

Abstract

This study investigated the effect of the coffee drying process using a coffee drying house on the moisture content, acidity, caffeine value, and flavour of Arabica coffee. An experimental method with a two-factor analysis of variance was used to evaluate significant differences between three different drying processes: Before Drying Process, Sun Drying Process, and Drying Process with Coffee Drying House. The results showed that sun-drying coffee with a coffee drying house produced lower moisture content, acidity, and caffeine value than the other drying processes. The flavour of Arabica coffee produced by this method was also considered sweeter by coffee export standards. Statistical analysis with Anova Block Subsampling, Anova 1 Factor Fixed Model, and Anova 2 Factor Factorial Design showed that the coffee drying process using coffee drying houses significantly affects the quality of arabica coffee. This study concludes that coffee drying houses can be an effective solution in improving the quality of Arabica coffee by controlling the moisture content, acidity, and caffeine value. The results of this study contribute to understanding the process of drying coffee beans and the factors that affect the final quality of the product. Therefore, this study provides an essential scientific basis for coffee farmers and the coffee processing industry to improve the quality of their coffee.
Analysis of Arabica Coffee Characteristics and Drying Method on Arabica Coffee Flavor Using Analysis of Variance Sumitro, Martinus Robinson; Hutabarat, Julianus; Achmadi, Fuad
IJEBD (International Journal of Entrepreneurship and Business Development) Vol 7 No 3 (2024): May 2024
Publisher : LPPM of NAROTAMA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/ijebd.v7i3.2737

Abstract

Purpose: This study investigated the effect of the coffee drying process using a coffee drying house on the moisture content, acidity, caffeine value, and flavor of arabica coffee. Design/methodology/approach: An experimental method with a two-factor analysis of variance was used to evaluate significant differences between three different drying processes: Before Drying Process, Sun Drying Process, and Drying Process with Coffee Drying House Findings: The results showed that sun-drying coffee with a coffee drying house produced coffee with lower moisture content, acidity, and caffeine value compared to the other drying processes Research limitations/implications: The research location was Karot Village, Langke Rembong Subdistrict, Manggarai Regency. The object of research was the drying process of arabica coffee beans and the measurement of moisture content, acidity content and caffeine content of arabica coffee. The method used was analysis of variance with a fixed model (one-way anava design, block subsampling anava and two-factor anava). The data obtained were the acidity value, caffeine value, moisture content and coffee flavour. Practical implications: The results of the research were successful and improved the quality of coffee exports in Karot Village, Langke Rembong District, Manggarai Regency. Originality/value: The research carried out by the researcher states that this research is the result of his work and is the first time at Karot Village, Langke Rembong District, Manggarai Regency with the title of the research being researched, except for quotations from several summaries, all of which the researcher has explained the source. Paper type: Research Paper
OPERATIONAL WORK OF A SQUID TRANSPORTING SHIP CASE STUDY ON KM PERINIS JAYA 89 Ikhsan, Suci Asrina; Sari, Iya Purnama; Widagdo, Aris; Djunaidi, Djunaidi; Sumitro, Martinus Robinson; Aidil, Fikri
Aurelia Journal Vol 7, No 2 (2025): October
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/aj.v7i2.16754

Abstract

Carrier vessels play a crucial role in the capture fisheries industry, particularly as transportation modes responsible for delivering harvested products from fishing grounds to the shore or port. This strategic function requires the implementation of clear Standard Operating Procedures (SOPs) to ensure that handling practices comply with regulations and meet quality standards. Therefore, assessing the application of SOPs on squid carrier vessels is essential to determine the extent to which existing procedures align with proper handling standards and regulatory requirements. The objective of this study is to evaluate the conformity of SOP implementation on squid carrier vessels with applicable regulations, identify weaknesses or inconsistencies in operational practices, and provide recommendations for improvements that may enhance product quality, operational efficiency, and the sustainability of fisheries enterprises. This research was conducted from March to May 2025, using KM Perintis Jaya 89 as the research object, a squid carrier vessel owned by Perintis Jaya International operating in Benoa, Bali. Data collection was carried out through direct observation during the vessel’s operational trips, including documentation of the number of trips, travel duration, cargo volume, and fuel consumption. The main focus of the assessment was the handling of squid, encompassing loading, storage, and unloading activities carried out by the carrier vessel. The findings indicate that KM Perintis Jaya 89 has implemented SOPs in accordance with policy directives. Proper and consistent SOP implementation supports effective and efficient vessel operations, thereby ensuring the maintained quality of squid products destined for market distribution.
ANALYSIS OF HEAVY METAL CONTENT IN WATER, SEDIMENT, AND FISH IN THE WATERS OF DUMAI CITY, RIAU PROVINCE Djunaidi, Djunaidi; Arkham, Muhammad Nur; Hutapea, Roma Yuli F.; Kelana, Perdana Putra; Ikhsan, Suci Asrina; Haris, Rangga Bayu Kusuma; Widagdo, Aris; Sari, Iya Purnama; Rejeki, Sri Untari Puji; Sumitro, Martinus Robinson
Jurnal Segara Vol 20, No 2 (2025): December
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v20i2.17337

Abstract

The waters of Dumai City, located in Riau Province and directly connected to the Malacca Strait, are highly accessible both locally and internationally. The coastal area is characterized by intensive human settlements and diverse industrial activities, including oil and gas, crude palm oil (CPO), and cement industries, which discharge wastes that may affect marine biota. Most of these wastes are transported to the sea through river flows, posing a serious threat to the ecological balance and aquatic organisms, particularly fish, with potential risks to human consumers. This study aimed to examine the physicochemical parameters of the waters and to determine the concentration and status of cadmium (Cd) and lead (Pb) in water, sediment, and fish. The research was conducted from April to June 2025 using survey, observation, and experimental methods in both field and laboratory settings. Data were analyzed using Atomic Absorption Spectrophotometry (AAS) to measure the actual concentrations of heavy metals. The results were compared with the threshold values established by the Indonesian Ministry of Environment Decree No. 51/2004 concerning marine water quality standards for aquatic biota. The findings revealed that the physicochemical parameters, including water temperature, salinity, and dissolved oxygen (DO), remain supportive of aquatic life according to the standards. However, the concentrations of Pb and Cd in water, sediment, and fish samples exceeded the permissible limits, indicating pollution in Dumai waters.
Co-Authors Aidil, Fikri Djunaidi Djunaidi Fuad Achmadi Haris, Rangga Bayu Kusuma Hutapea, Roma Yuli F Iya Purnama Sari Julianus Hutabarat Muhammad Nur Arkham Perdana Putra Kelana Rejeki, Sri Untari Puji Suci Asrina Ikhsan Widagdo, Aris