Levels of antioxidant enzymes and alkaline protease from pulp and peel of sunflower

• Published in: Asian Pacific Journal of Tropical Biomedicine
• Main Authors: Wesen Adel Mehdi, Faridah Yusof, Layla O. Farhan, Atheer Awad Mehde, Raha Ahmed Raus
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wolters Kluwer Medknow Publications 2017
• Subjects: Pulp sunflower; Antioxidant enzymes; Free radical scavenging capacity; Free flavonoid content; Alkaline protease; Arctic medicine. Tropical medicine; RC955-962; Biology (General); QH301-705.5; Arctic
• Online Access: https://doi.org/10.1016/j.apjtb.2017.05.002; https://doaj.org/article/22be4bfe4cb9486388712476023a5c95

Objective: The activity of enzymes participating in the systems of antioxidant protection was assayed in the peel and pulp of sunflower. The essential roles of proteases in food stimulate research to find other sources of the enzyme especially from non-conventional sources. In the present work, we study several biochemical parameters in the pulp and peel of sunflower. Methods: Pulp and peel of sunflower was extracted, antioxidant enzymes and non-enzymatic antioxidant were measured. Alkaline protease was measured and purified from pulp in sunflower. Results: High carbohydrate concentration, beta-carotene, catalase and ascorbate peroxidase activities, free radical scavenging capacity and free flavonoid content were observed in the peel of sunflower. Whereas, MDA and ceruloplasmin activities were high in the pulp of sunflower. Conclusions: The present study concluded that peel in sunflower are strong radical scavengers and can be considered as good sources of natural antioxidants for medicinal and commercial uses. Further analysis showed that protease activity was a significantly high in the pulp compared to the peel.