Abstract
The aim of this work was to evaluate the physical properties of rice husk with a mixture of chitosan as a starting material for the synthesis of substrate cultures. The present experiment to evaluate the physical properties of growing substrate mixtures in the development of substrate cultures was the use of chitosan as a binder with the corresponding properties as rice husk/chitosan (50/50 vol%), rice husk/chitosan (40/60 vol%) and rice husk/chitosan (30/70 vol%). The measured properties of the substrate cultures included morphological, structural, density, and water absorption to verify their suitability for the substrate cultures. In addition, the results showed that the rice husks have an amorphous structure, while chitosan has a crystalline structure. Finally, the results also showed that those with a total binder content of chitosan of 70% by volume were obtained as good substrate mixture components. Therefore, it can be concluded that the incorporation of organic and inorganic materials improved the physical properties of the substrate cultures, so the treatment with rice husk blind as a binder chitosan can be a new substrate culture that can be replaced by other media.
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