| Summary: | This research is done to determine extractive contents of different types of hard wood
biomass and its effect particle size. The interaction between the type of biomass used and
the different particle sizes with response to cellulose percentage is investigated and
identified by using Design of experiment (DOE). There were three types of
characterization done on the types of biomass sample, Scanning Electron Microscope
(SEM) for morphology observation, X-Ray Diffraction (XRD) for crystallinity and
Carbon Hydrogen Nitrogen Sulfur (CHNS) analyser to determine the carbon, hydrogen
and nitrogen content. The characterization was done to identify and differentiate the
differences between the different biomass and with different size ranges. The morphology
study by SEM shows the difference in structure of the three different biomass sample
with three different size range while the XRD shows the difference in crystallinity of each
biomass sample with respect to their size range. A mathematical model was plot from the
use of the ANOVA, by using the significance and interaction of the factors that was
manipulated during the hydrolysis process of different biomass samples with different
particle size range. From the results obtained, both type of biomass sample and particle
size range shows little interaction with each other and it was found that type of biomass
has a slightly higher significant factor to percentage of cellulose.
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