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Green Natural Protein Isolate based composites and nanocomposites: A review

Currently, synthetic polymers are extensively used due to their superior properties such as inexpensive and ease of processing. They are non-degradable and create pollution in the environment. There is a growing demand for the use of biodegradable polymers due to increasing atmospheric pollution. Excessive use of non-biodegradable polymers causes atmospheric pollution. Therefore many scientists suggested using polymers more and more ecologically. Therefore, soy Protein Isolate (SPI) is mostly used due to low cost and readily available material. It contains 90% protein with excellent biocompatibility, biodegradability and processibility properties. Synthetic polymers based materials are used in plastic packaging being inexpensive. SPI is incorporated into the synthetic polymer to improve degradation behavior of the product and reduces atmospheric pollution. It increases the viscosity of polymeric materials and becomes a gel or viscous when heated. The purpose of this review is to focus on the study of SPI based composites and nanocomposites. The inclusion of various organic and inorganic fillers in the macro, micro and nano scale in SPI based products have exceptional degradation properties. SPI based composite and nanocomposites found their applications in various fields such as food, agriculture, biotechnology, biodegradable foams and packaging of edible or non-edible materials. It is used in wood and paper industries as a replacement for synthetic materials as adhesives and coating materials. It is also utilized as a wound dressing application due to its excellent absorbing behavior.

Publication date: 01/07/2021

Author: Sanjeev Gautam, Bhasha Sharma, Purnima Jain

Polymer Testing


This project has received funding from the Bio Based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 837761.