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Farikha Maharani
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INDONESIA
Jurnal Inovasi Teknik Kimia
Published by Universitas Wahid Hasyim Semarang
ISSN : 2527614X     EISSN : 25415891     DOI : http://dx.doi.org/10.31942/inteka
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering
The Inovasi Teknik Kimia (INTEKA) journal focuses upon aspects of chemical engineering: chemical reaction engineering, environmental chemical engineering, material and food engineering . The INTEKA is an research journal and invites contributions of original and novel fundamental research. The journal aims to provide a forum for the presentation of original fundamental research, interpretative reviews and discussion of new developments in chemical engineering. Papers which describe novel theory and its application to practice are welcome, as are those which illustrate the transfer of techniques from other disciplines. Reports of carefully executed experimental work, which is soundly interpreted are also welcome. The overall focus is on original and rigorous research results which have generic significance.
Arjuna Subject : Teknik Kimia (semua kategori) - Teknik Kimia (Lain-Lain)
Articles 302 Documents
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Analisis Profil Asam Lemak Minyak Zaitun (Olea Europaea L.) Menggunakan Metode GC-MS dan FT-IR Aeni, Nur; Kartika, Andi Eka
Jurnal Inovasi Teknik Kimia Vol. 11 No. 2 (2026): APRIL | INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v11i2.15307

Abstract

Olive oil (Olea europaea L.) is a high-value vegetable oil rich in unsaturated fatty acids and bioactive compounds beneficial to health. However, variability in quality and the risk of adulteration require accurate chemical characterization. This study aims to analyze the fatty acid profile and chemical characteristics of olive oil using a combination of Gas Chromatography–Mass Spectrometry (GC–MS) and Fourier Transform Infrared Spectroscopy (FT–IR). Olive oil samples were analyzed before and after 12 hours of ultrasonic treatment, preceded by a methylation process to form fatty acid methyl esters. GC–MS was used to identify fatty acid components based on retention time and mass spectra, while FT–IR was employed to observe the main functional groups of triglycerides. The GC–MS results showed oleic acid as the dominant component, increasing from 58.36% before to 68.59% after ultrasonic treatment, followed by palmitic and linoleic acids. FT–IR spectra exhibited characteristic peaks at ~2924 cm⁻¹, 1745 cm⁻¹, and 1163 cm⁻¹, confirming the triglyceride structure. The combination of GC–MS and FT–IR proved effective for evaluating the quality and authenticity of olive oil.
The Impact of Carbon Support Catalyst from Lignin-Derived Phenolic in Ozonation Process Panandita, Budi Satria; Maleiva, Lalak Tarbiyatun Nasyin
Jurnal Inovasi Teknik Kimia Vol. 11 No. 2 (2026): APRIL | INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v11i2.15334

Abstract

The research described herein evaluated the effectiveness of a carbon-supported catalyst synthesized from lignin-derived phenol for ozonation, using methylene blue (MB) as a representative wastewater pollutant. The effectiveness of the degradation process was evaluated through kinetics. Furthermore, the effect of temperature on MB oxidation was investigated. The N2-sorption analysis confirmed a specific surface area of the carbon support of 36.16 m²/g, with a corresponding average pore radius of 1.58 nm. Fe-loaded carbon support achieves MB decolorization over 90% within 30 minutes. Pseudo-first-order and non-linear kinetic models described the catalyst's performance. The decolorization process was thermodynamically demonstrated to be endothermic and non-spontaneous.  

Page 31 of 31 | Total Record : 302

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