Abstract
In this study, Corchorus olitorius leaves were subjected to different thermal treatments (blanching, boiling, drying, frying, and steaming) and analyzed, total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity. Furthermore, Fourier transform infrared spectroscopy (FTIR) was used to identify functional groups, while metabolites were identified with LC-MC. The TPC and antioxidant activity of C. olitorius were significantly (p < 0.05) increased by cooking and drying. The steam-cooked sample had the highest TPC (18.89 mg GAE/g) and TFC (78.42 mg QE/g). With ABTS, FRAP, and DPPH assays, the steam-cooked sample exhibited the highest antioxidant activity of 119.58, 167.31, and 122.23 µM TE/g, respectively. LC-MS identified forty-two (42) metabolites in C. olitorius that included phenolic acid derivatives, flavonoid derivatives, and amino acid derivatives. Overall, steaming appears to be the best cooking method, with respect to the retention of phytochemical compounds and antioxidant activity.
Funder
National Research Foundation Thuthuka
Subject
Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science
Reference57 articles.
1. Effect of Cooking Methods on the β-carotene Content of Jute Mallow Leaves (Corchorus olitorius);Parkouda;Am. J. Food Sci. Technol.,2019
2. Nutritional value of leafy vegetables of sub-Saharan Africa and their potential contribution to human health: A review;Uusiku;J. Food Compos. Anal.,2010
3. Maseko, I., Mabhaudhi, T., Tesfay, S., Araya, H., Fezzehazion, M., and Plooy, C. (2017). African Leafy Vegetables: A Review of Status, Production and Utilization in South Africa. Sustainability, 10.
4. Effects of cooking and drying on phenolic compounds and antioxidant activity of African green leafy vegetables;Moyo;Food Rev. Int.,2018
5. Deaths: Final Data for 2011;Kochanek;Natl. Vital Stat. Rep.,2015
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