Asep Bayu Dani Nandiyanto
The objective of this study was to evaluate thermal decomposition of turmeric microparticles under atmospheric condition. Turmeric microparticles were prepared by drying and milling Indonesian local turmeric (Curcuma Longa). To obtain micron size of turmeric, combination of saw- and ball-milling processes were used. The analysis was conducted by heating the prepared turmeric micropowder into the electrical heating furnace at a specific temperature. Experimental results showed that turmeric was stable at temperature of less than 100o C. It begun for the decomposition process at higher temperature. Seven steps for the thermal decomposition processes were obtained. The steps involved the decomposition of turmeric into smaller molecular compounds, including curcumin, trans-6-(4,-hydroxy-3,-methoxyphenyl)-2,4-dioxo-5-hexenal; vanillin and vanillic acid; ferulic acid; and carbon. The benefit obtained in this result will give better understanding for the use of heat treatment in the turmeric and curcumin-related materials for food, drugs, and medical related uses. © School of Engineering, Taylor's University
Departemen Kimia, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, 40154, Indonesia
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