**2. Properties of biocomposites**

The most important characteristic feature of selection materials for various applications is depending on its properties. The properties of materials are often dependent on the isotropic and anisotropic nature of the materials. The properties of materials that relate to different physical phenomena often behave linearly (or approximately so) in a given operating range. Modeling them as linear can significantly simplify the differential constitutive equations that the property describes. On the other hand, the relevant equations are also used to determine the material properties. If we know the original length of a material, then we can determine the gain or loss of its original length by calculating change of the length. Material properties are most reliably measured by standardized test methods. Many such test methods have been documented by their respective user communities and published through ASTM International [6]. We noted the most important properties of the renewable biocomposites from several researchers' investigations that are listed below.

(1) Mechanical properties, (2) thermal properties, (3) optical properties, (4) degradable properties, and (5) electrical properties.
