Modified Poly(lactic acid) (PLA) was blended with Decoloured Novatein® (DNTP), a thermoplastic protein material using reactive extrusion to produce a degradable material with improved properties compared to neat Decoloured Novatein®. PLA was modified through free radical grafting of itaconic anhydride to create reactive side-chain groups. Varying ratio of DNTP/ modified PLA (PLA-g-IA) were prepared. Non-modified PLA were also blended with DNTP using same ratio. Blending DNTP with PLA was found to increase tensile strength and modulus, whereas the strain at break decreased. The glass transition temperature of the blends which was measured as the tan δ peak, also revealed an increase when compared to neat DNTP. Scanning electron microscope revealed an enhanced interfacial adhesion between the two phases in the blends with PLA-g-IA suggesting a more homogenous micro-structure. WAXS result revealed an insignificant decrease in the crystallinity of the blends compared to neat DNTP, indicating that blending with PLA has no structure effect on DNTP. The result presented in this study show the feasibility of improving the properties of DNTP with PLA-g-IA for use in agricultural and packaging applications.