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Arnia Putri Pratama used lignin derived from mahogany wood, which is widely available in Indonesia and often remains as a by-product of the wood industry. \u201cI see wood waste, especially mahogany, as an opportunity. Rather than being discarded or simply burned, it is better to transform it into products with high economic value,\u201d Arnia stated in her presentation.<\/p>\n\n\n\n
To convert lignin into simpler and more valuable compounds, Arnia Putri Pratama developed catalysts made from nickel (Ni) and copper (Cu) as reaction accelerators. These catalysts were prepared using specially designed porous materials, allowing the lignin depolymerization process to occur more effectively. She also compared several types of catalysts to determine which formulation was the most optimal in producing phenol and vanillin.<\/p>\n\n\n\n
The results showed that nickel-based catalysts performed more effectively than copper in breaking down lignin. Meanwhile, certain metal combinations on specific support materials were able to significantly enhance phenol production yields. \u201cWe found that the structure and properties of the catalyst greatly determine the final outcome. With the right design, the process can become more efficient and produce higher yields,\u201d she explained.<\/p>\n\n\n\n
According to Arnia Putri Pratama, the biggest challenge in lignin processing so far has been the low product yield and the limited stability of catalysts at high temperatures. Her research sought to address these issues by designing a catalyst system that is more stable and selective. She also tested the reaction using model compounds to gain a more detailed understanding of how the lignin depolymerization process occurs.<\/p>\n\n\n\n <\/p>\n\n\n\n This research is considered novel because it integrates the use of native lignin derived directly from biomass with model compounds, while also comparing two different catalyst systems within a single comprehensive approach. Through this method, the relationship between catalyst design and reaction outcomes can be understood more clearly.<\/p>\n\n\n\n Arnia Putri Pratama hopes that her findings will encourage more serious utilization of Indonesia\u2019s biomass resources. \u201cIndonesia is rich in natural resources. With the right technology, even waste can be transformed into industrial raw materials that are more environmentally friendly and sustainable,\u201d she stated.<\/p>\n\n\n\n Through this dissertation, Arnia Putri Pratama not only earned her doctoral degree from the Faculty of Mathematics and Natural Sciences (FMIPA) at Universitas Indonesia, but also opened new opportunities for the development of a renewable resource\u2013based chemical industry. Wood waste, which has long been overlooked, now holds the potential to become an important raw material for food flavorings, eco-friendly plastics, and various other high-value industrial products.<\/p>","protected":false},"excerpt":{"rendered":" Arnia Putri Pratama resmi menyandang gelar Doktor Ilmu Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia (FMIPA UI) setelah mempertahankan disertasinya dalam Sidang Terbuka Promosi Doktor yang digelar pada Senin (9\/2\/2026) di Aula Prof. Dr. G.A. Siwabessy, FMIPA UI, Depok. Di bawah bimbingan Prof. Dr. Yuni Krisyuningsih Krisnandi, S.Si., M.Sc. dan Ko-Promotor Iman Abdullah, […]<\/p>\n","protected":false},"author":12,"featured_media":14356,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-14355","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita"],"blocksy_meta":[],"yoast_head":"\n![\"\"](\"https:\/\/sci-ui.id\/wp-content\/uploads\/2026\/02\/sci-428-1024x683.jpg\")
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