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nucleation but interferes with the growth of foam cells, visually appreciated in explaining that the filler is good but only in an appropriate proportion.    The crystallinity that creates a visual opaque finish after foaming on the samples is also  indicated inside through the SEM images.\subsection{Automated Multiunit Composting System (AMCS)}    The compost biodegradability test reveals an outstanding rate of carbon release and  mineralization or biodegradation when compared with the petroleum based PU as indicated in  The interpretation of this test is considered valid by the compliance of the results with the major concerns, the samples did not achieved over 70\% of mineralization during the 45 days of test, but the composting slope still positive.    This conversion process from organic carbon to inorganic carbon is defined mineralization  [14]. The terms biodegradation and mineralization are frequently used as synonyms. The kenaf  foamed samples showed an outstanding mineralization rate, even in comparison with the cellulose  bioreactors, inspiring the need to further the research in this area, to relate if the cell type and size  are parameters to keep in mind during the foaming process.    Analyzing the results with previous papers [ ] we find a consistent longer mineralization  time when comparing it to the intended 45 days compost ability of, but the ASTM standard requires  that the object needs to fully compost in 90 days or less, meaning that if the slope of mineralization  still positive after 45 days (test initial limit) means that the material is going through composting.