Production of antioxidant peptides through hydrolysis of medicinal pumpkin seed protein using pepsin enzyme and the evaluation of their functional and nutritional properties.

Background: A hydrolyzed protein composition is a mixture of peptide and amino acids that have been achieved through hydrolysis by the enzyme from different sources, acid or caustic soda. These peptides show important health improving properties including anti-oxidation, antimicrobial, anti-cancer, anti-diabetic, anti-hypertensive activity.

Methods: The aim of the present study was to hydrolyze the protein extracted from medicinal pumpkin seed (Cucurbita Pepo Con.

Evaluation of antioxidant interactions in combined extracts of green tea (Camellia sinensis), rosemary (Rosmarinus officinalis) and oak fruit (Quercus branti).

Green tea (Camellia sinensis), rosemary (Rosmarinus officinalis) and oak fruit (Quercus branti) are of known medicinal plants used in traditional medicine. They provide substantial antioxidant activities but the possible antioxidant interaction between them has not been studied. In the present study first the bioactive compounds from these three plants were first extracted and thereafter assayed for total phenols, 2, 2-diphenyl-1- picrylhydrazyl (DPPH) radical scavenging activity, total antioxidant capacity (TAOC) and reducing power.