Abstract
In this research, proteins were obtained from Pongamia pinnata oil meal and subsequently converted into films and compression molded into various packaging products. Films with a maximum tensile strength of 1.9 MPa were obtained when 15% citric acid was used as the crosslinker. Minimum swelling of 120% was seen in 20% citric acid crosslinked film whereas the uncrosslinked films readily disintegrated in water. The protein films had excellent antioxidant properties with an IC50 value of 14.6 µg/ml compared to 26.9 µg/ml for the standard ascorbic acid. The pongamia protein-based bioproducts showed good activity against Bacillus cereus and Aspergillus niger. Unique properties, low cost, and large availability make pongamia proteins an ideal biopolymer for the development of green and sustainable materials and bioproducts.
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