The Physical and Mechanical Properties of Candlenut (Aleurites Moluccanus) at Different Submerge of NaOH Concentration
Darmanto(a*), Gunomo Jowowasito (a), Zaqlul Iqbal(a), Ekoyanto Pudjiono(a), Mustofa Lutfi(a), Arifka Intan Savira(a)

a) Agricultural Engineering Department of Universitas Brawijaya. Jalan Veteran Malang 65145
*) darmanto_sm[at]ub.ac.id

Abstract

This research aimed to analyse some physical and mechanical properties of candlenut at different submerge of naoh concentration. The sample was submerged by five different concentrations (3%, 3.5%, 4%, 4.5%, 5%) of NaOH with one liter of water as a solvent. After submersion, the samples dryed using oven machine and then tested using Brazilian testing machine. Physical and mechanical properties of these samples were then examined comprising compressive load, required energy to damage shell, kernel intactness, and MWD. The results showed that the NaOH concentration very affected the compressive load and the required energy to damage shell.In other hand, The NaOH concentration did not effect the kernel intactness and the MWD.

Keywords: physical properties; mechanical properties; candlenut; NaOH concentration

Topic: AGRICULTURAL ENGINEERING