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All Journal JURNAL KIMIA SAINS DAN APLIKASI CHEMICA Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Jurnal Litbang Industri MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering REACTOR : Journal of Research On Chemistry And Engineering Warta AKAB Jurnal Teknologi Kimia Unimal Journal of Industrial Community Empowerment SAINTI: Majalah Ilmiah Teknologi Industri Journal Of Chemical Process Engineering
Enny Nurmalasari
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Comparison of Different Types of Bleaching Earth on the Quality of Bleaching Palm Oil (BPO) Khairati, Miftahul; Aini, Apsari Puspita; Nurmalasari, Enny; Yahya, Agung Kurnia
Eksergi Vol 22 No 1 (2025)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v22i1.13311

Abstract

Bleaching Earth (BE), primarily derived from Bentonite, is widely used in the bleaching process of Crude Palm Oil (CPO). Its efficiency depends on the proportions of SiO₂ and Al₂O₃, which enable effective pigment absorption. This study evaluates the performance of unmodified Bentonite, nano SiO₂-modified Bentonite, and commercial BE in producing Bleached Palm Oil (BPO). The novelty lies in the nano SiO₂ modification, designed to enhance the structural properties and absorption capabilities of Bentonite. Characterization of BE was conducted using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM), while BPO quality was assessed through parameters like moisture content, acid value, Free Fatty Acid (FFA) levels, (Deterioration of Bleachability Index (DOBI), and β-carotene concentration. The results showed that BPO processed with nano SiO₂-modified Bentonite had the lowest β-carotene concentration (443%) and a DOBI value of 1.453, demonstrating superior bleaching performance compared to unmodified and commercial BE. Other parameters, including FFA levels and moisture content, exhibited minimal variation. Color analysis revealed that BPO processed with nano SiO₂-modified Bentonite achieved a comparable color value (1.5/15) to commercial BE. These findings highlight the potential of nano SiO₂-modified bentonite for improving oil quality by reducing FFA and acid value while maintaining optimal moisture content, offering a novel and effective alternative to unmodified bentonite in oil refining.
Co-Authors Aini, Apsari Puspita Apsari Puspita Aini Apsari Puspita Aini Apsari Puspita Aini Baroza, Andika Cahyani, Luthfi Nazwa Andya Chairunnisak, Aula Dennis Farina Nury Hana Nikma Ulya Harmiwati NH Hasnah Ulia Hasnah Ulia Heratri, Agnes Jerry Jerry Khairati, Miftahul Kubikazari, Sinju Kusmiyati Kusmiyati Maulana, Akmal Maulana, Ihsan Mesa, Nazwa Ananda Miftahul Khairati Miftahurrahmah Miftahurrahmah, Miftahurrahmah Muhammad Zulfikar Luthfi N. H., Harmiwati Nurillahi, Resi Permadani, Resi Levi Puji Rahayu Putra, Reski Lediyo Rasrendra, Carolus Borromeus Ronald Sukwadi Selfa Dewati Samah Sitompul, Johnner Tutuk Djoko Kusworo Ulia, Hasnah Yahya , Agung Kurnia Yahya, Agung Kurnia Yunita Fahni