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The aim of this study was to investigate the effect of microwave pretreatment on the properties of particleboard made from para rubber wood sawdust with the addition of polyhydroxyalkanoates (PHAs). Para wood sawdust was pretreated with microwaves at different wattages (400, 600 and 800 W) Kata kunci: Habuk gergaji kayu getah para; ketuhar gelombang mikro; papan partikel; PHA; polihidroksialkanoat sawdust or rubber wood dust which is a major by-product of cutting, grinding, drilling or otherwise pulverizing wood with a saw or other mechanical device can also be considered as a new source of raw materials that can replace rubber wood in manufacturing panels. Moreover, the utilization of sawdust could help to reduce the amount of wood from forest which is wasted, by using the wasted products as a raw material in the production of valuable products such as particleboard. Particleboard is widely used for making furniture, interior decoration and appliances.