Mahfud Mahfud
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View article: Enhancing Bioactive Compound Yield from <i>Chromolaena odorata</i> L. through Microwave-Assisted Extraction: Influence of Solvent Type and Extraction Kinetics
Enhancing Bioactive Compound Yield from <i>Chromolaena odorata</i> L. through Microwave-Assisted Extraction: Influence of Solvent Type and Extraction Kinetics Open
Microwave-assisted extraction (MAE) was applied to Chromolaena odorata leaves to quantify solvent effects and optimize recovery of bioactive constituents. Ethanol-based MAE was optimized with a Box–Behnken design across microwave power (15…
View article: Simultaneous extraction of caffeine and chlorogenic acid from Arabica coffee using microwave-assisted extraction
Simultaneous extraction of caffeine and chlorogenic acid from Arabica coffee using microwave-assisted extraction Open
This study aimed to optimize the microwave-assisted extraction (MAE) process for the selective decaffeination of Gayo Aceh Arabica coffee, focusing on the simultaneous reduction of caffeine (CF) and preservation of chlorogenic acid (CGA), …
View article: Ultrasound-assisted interesterification method from coconut oil for biodiesel production via heterogeneous catalyst: Characterization and optimization
Ultrasound-assisted interesterification method from coconut oil for biodiesel production via heterogeneous catalyst: Characterization and optimization Open
Ultrasound-assisted interesterification is a new approach for biodiesel production, and in this study, coconut oil was selected as the raw material to produce biodiesel using this technology. Therefore, this study aims to produce biodiesel…
View article: Analysis of heavy metals contamination in chue snails (Faunus ater) from estuary of the southwestern coast of Aceh Province, Indonesia
Analysis of heavy metals contamination in chue snails (Faunus ater) from estuary of the southwestern coast of Aceh Province, Indonesia Open
The southwestern coast of Aceh Province is among the areas vulnerable to heavy metal pollution originating from human activities, including mining, agriculture, and household waste. Chue snails (Faunus ater) are among the aquatic organisms…
View article: Extraction technologies and bioactive applications of Ocimum basilicum: A bibliometric and systematic review
Extraction technologies and bioactive applications of Ocimum basilicum: A bibliometric and systematic review Open
Ocimum basilicum, commonly known as basil, has attracted considerable attention due to its antimicrobial, antioxidant, anti-inflammatory, and pesticidal properties, which support a range of pharmaceutical, agricultural, and food-related ap…
View article: Synergistic effect of Fe-promoted catalyst and low-rank coal absorber in microwave-assisted plastic pyrolysis
Synergistic effect of Fe-promoted catalyst and low-rank coal absorber in microwave-assisted plastic pyrolysis Open
The escalating accumulation of plastic waste has become a pressing environmental crisis, requiring innovative valorization strategies. This study investigated a microwave-assisted pyrolysis (MAP) system employing low-rank coal (LRC) as a m…
View article: Recent Advances in Biodiesel Production: Ultrasound-Assisted Interesterification of Palm Oil with Methyl Acetate
Recent Advances in Biodiesel Production: Ultrasound-Assisted Interesterification of Palm Oil with Methyl Acetate Open
Currently, fossil fuels (non-renewable) are used continuously to meet bioenergy needs. Every year, there is an increase in bioenergy consumption, which will eventually lead to the depletion of fuel reserves. Therefore, it is necessary to h…
View article: Investigation of the Extraction Parameters on Acquisition of Natural Colorants from Coleus atropurpureus L. Benth Leaves Using Microwave- and Ultrasonic-Assisted Extraction
Investigation of the Extraction Parameters on Acquisition of Natural Colorants from Coleus atropurpureus L. Benth Leaves Using Microwave- and Ultrasonic-Assisted Extraction Open
— This study systematically investigates the application of Microwave-Assisted Extraction (MAE) and Ultrasonic-Assisted Extraction (UAE) to extract natural pigments from Coleus atropurpureus L. Benth leaves, using water as a green solvent.…
View article: Theoretical perspectives and recent advances in palm-based adsorbents for sustainable heavy metal removal from aqueous systems
Theoretical perspectives and recent advances in palm-based adsorbents for sustainable heavy metal removal from aqueous systems Open
Heavy metal contamination in water systems remains a pressing environmental and public health issue due to the persistence and toxicity of metals such as Pb2+ , Cd2+, Cr6+, and As3+. Increasing global attention on environmental protection …
View article: FACTORS CAUSING THE DECLINE IN CERAMIC WORKERS' PRODUCTIVITY AND STRATEGIES FOR IMPROVEMENT
FACTORS CAUSING THE DECLINE IN CERAMIC WORKERS' PRODUCTIVITY AND STRATEGIES FOR IMPROVEMENT Open
This study examines the comparison of labor productivity during normal working hours and overtime in the ceramic installation work of the Transit Office renovation project of the Ministry of Finance in Balikpapan City.The main issue is how…
View article: Enhancing Fuel Oil from Polyethylene Waste: A Comparative Study of Catalyst Efficiency in Thermal Pyrolysis
Enhancing Fuel Oil from Polyethylene Waste: A Comparative Study of Catalyst Efficiency in Thermal Pyrolysis Open
The growing accumulation of polyethylene (PE) plastic waste poses a significant environmental challenge, necessitating effective recycling and waste management solutions. Thermal pyrolysis has emerged as a promising method for converting p…
View article: ANALYSIS OF VRF AC UTILITY SYSTEM IN THE INTEGRATED LECTURE BUILDING OF THE BANYUWANGI STATE POLYTECHNIC (Case Study at Banyuwangi State Polytechnic)
ANALYSIS OF VRF AC UTILITY SYSTEM IN THE INTEGRATED LECTURE BUILDING OF THE BANYUWANGI STATE POLYTECHNIC (Case Study at Banyuwangi State Polytechnic) Open
As time goes by, temperatures in Indonesia have increased quite drastically. According to daily BMKG data, the average temperature in Banyuwangi Regency is between 240C – 330C (BMKG, 2023). Installing an air conditioner (AC) is considered …
View article: Intergeneration Dynamics and Knowledge Sharing in Family Business Sustainability
Intergeneration Dynamics and Knowledge Sharing in Family Business Sustainability Open
Family business sustainability relies heavily on the interplay of intergenerational dynamics, where the effective transfer of knowledge, values, and relational resources is pivotal. This study explores the role of entrepreneurial knowledge…
View article: UTILIZATION OF CRAB SHELLS (Portunus pelagicus Linn) AS A BASE MATERIAL FOR SELECTIVE ADSORBENT OF Ni(II) AND Zn(II) IONS IN SEAWATER MEDIUM
UTILIZATION OF CRAB SHELLS (Portunus pelagicus Linn) AS A BASE MATERIAL FOR SELECTIVE ADSORBENT OF Ni(II) AND Zn(II) IONS IN SEAWATER MEDIUM Open
This study systematically investigates the utilization of crab shell waste (Portunus pelagicus Linn) as a basic material for selective adsorbents of Ni(II) and Zn(II) metals in a seawater medium. The process began with the isolation of chi…
View article: Analisis Munafik dalam Tafsir Al-Jami'li Ahkamil Quran: Studi Thematic Surat Al-Baqarah Verses 8-20
Analisis Munafik dalam Tafsir Al-Jami'li Ahkamil Quran: Studi Thematic Surat Al-Baqarah Verses 8-20 Open
Hypocrites are one of the groups that have the potential to damage the unity and integrity of Muslims in the world. The Qur'an discusses this issue of hypocrisy extensively. Therefore, the authors conclude that an understanding of this hyp…
View article: Analysis of the Concept of Zina in Tafsir Fii Dzilalil Qur'an by Sayyid Quthb and Its Relationship with Al-Maqashid Al-Khamsah
Analysis of the Concept of Zina in Tafsir Fii Dzilalil Qur'an by Sayyid Quthb and Its Relationship with Al-Maqashid Al-Khamsah Open
This study aims to explain how tafsir fii Dzilali Al-Qur'an interprets the verses of zina in the Qur'an and how it relates to Hifzu An-Nasl, one of the parts of Al-Maqashid Al-Khamsah. One of the objectives of this study is to increase the…
View article: Temperature and Cr-Co ratio on Production of Diethyl Ether from Ethanol Dehydration using Cr-Co/γ-Al2O3 Catalyst
Temperature and Cr-Co ratio on Production of Diethyl Ether from Ethanol Dehydration using Cr-Co/γ-Al2O3 Catalyst Open
The running down of fossil fuels and rising environmental concerns, there is an increasing emphasis on identifying eco-friendly alternative energy sources. Diethyl ether (DEE) is considered one such additive fuel that can replace fossil fu…
View article: DEVELOPING A KINETIC MODEL FOR MICROWAVE HYDRO DIFFUSION AND GRAVITY WITH STEAM FLOW ON EXTRACTION OF ESSENTIAL OILS FROM Amomum compactum SEEDS
DEVELOPING A KINETIC MODEL FOR MICROWAVE HYDRO DIFFUSION AND GRAVITY WITH STEAM FLOW ON EXTRACTION OF ESSENTIAL OILS FROM Amomum compactum SEEDS Open
Lampung cardamom (Amomum compactum) has the potential to produce essential oils used for aromatherapy, cosmetics, and pharmaceutical purposes. This research aims to study the kinetics model that can represent the extraction process using t…