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Nutritional Composition, Total Phenolic Content, Antioxidant and α-Amylase Inhibitory Activities of Different Fractions of Selected Wild Edible Plants

1
Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
2
Institute of Nutrition and Food Science, University of Dhaka, Dhaka-1000, Bangladesh
*
Author to whom correspondence should be addressed.
Antioxidants 2019, 8(7), 203; https://doi.org/10.3390/antiox8070203
Received: 16 June 2019 / Revised: 28 June 2019 / Accepted: 29 June 2019 / Published: 1 July 2019
(This article belongs to the Special Issue Phytochemical Antioxidants and Health)
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Abstract

Wild plants are considered the richest source of essential nutrients and other beneficial phytochemicals. Hence, the objective of this study was to evaluate the nutritional composition, antioxidant- and α-amylase inhibition activities of leaves and roots of selected Bangladeshi wild plants. These wild plants were found to have high fiber (13.78–22.26 g/100 g), protein (7.08–21.56 g/100 g) and ash (8.21–21.43 g/100 g) contents. The total phenolic and total flavonoid contents were significantly higher in the leaves than the roots. Additionally, antioxidant activity was evaluated using ferric-reducing antioxidant power, 2, 2-diphenyl-1-picrylhydrazyl radical (DPPH) and trolox equivalent antioxidant capacity assays and was strongly correlated with phenolic compounds. The leaf extracts of the selected plants also exhibited potent α-amylase inhibition (~71%) and were significantly higher than their root counterparts. Thus, the study findings concluded that the investigated plants were good sources of fiber, protein, mineral, natural antioxidant compounds and α-amylase inhibitors, and their increased intake could provide health benefits. The principal component analysis (PCA) of analyzed variables divided the samples into three clear groups, and the first two principal components accounted for 86.05% of the total data set variance. View Full-Text
Keywords: antioxidants; α-amylase; Bangladesh; nutritional profile; total phenolic content; wild plants antioxidants; α-amylase; Bangladesh; nutritional profile; total phenolic content; wild plants
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Rana, Z.H.; Alam, M.K.; Akhtaruzzaman, M. Nutritional Composition, Total Phenolic Content, Antioxidant and α-Amylase Inhibitory Activities of Different Fractions of Selected Wild Edible Plants. Antioxidants 2019, 8, 203.

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