Preparation of casein protein-based bioplastics at different temperatures and percentage of acid used

The purpose of this study was to prepare casein protein-based bioplastics for biodegradable plastic materials application. Casein was extracted from spoiled cow milk heated at different temperatures (40 °C, 50 °C and 60 °C) and amount of acetic acid was varied (1 ml, 5 ml and 10 ml). By adjusting the extraction parameters of casein, two different types of protein-based bioplastics were produced: smooth and rough surface polymers. The preparation by using this technique can be beneficial as it is the most convenient and cost-effective process. These bioplastics have high potential for development of biodegradable plastic; the challenge of solid waste management can be wisely controlled if the plastics that are being used made up of waste material such as casein from the spoiled milk.