Utilization of Gambier (Uncaria Gambier, Roxb.) Combined with Albumin in Formation of Natural Rigid Foam

The treatment in this study was a variation in the amount of Gambier extract added, namely 16 g, 20 g and 24 g in 89.5 g of a mixture that also contained 23 g of albumin powder, 60 g of water, 5 g of hexamine and 1.5 g of para-Toluene Sulfonic Acid. Observations for the quality of the foam formed were carried out for several parameters such as Foam density, compressive strength, degree of development, pH modification and porosity. Observation of foam pores was conducted with an optical microscope (Bock and Norris, 2019). As a result, the best treatment combination was 24g Gambier extract per 89.5g of mixture prepared with pan-dried albumin. Microscopy observation showed that pan dried albumin powder resulted in 55% -65% pores and foam dried albumin powder pores were 41% - 50%. This study has shown the potential for utilizing Gambier extract in producing derivative products by combining with albumin. These results will be a reference for the development of other derivative products. Keywords: Gambier extract, albumin powder, foam dried, pan dried, rigid foam, closed cells.