Solvent optimization extraction of antioxidants from foxtail millet species’ insoluble fibers and their free radical scavenging properties

Bangoura, Mohamed Lamine; Nsor-Atindana, John; Ming, Zhou

doi:10.1016/j.foodchem.2013.03.029

Cited by 25 publications

(13 citation statements)

References 37 publications

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“…The unidentified phenolic acid (peak 3) was the primary free monomeric phenolic compound in DRB, while vanilline was the predominant free monomeric phenolic compound in SDFDRB and IDFDRB. Similarly, vanilline was the predominant free monomeric phenolic compound in foxtail millet dietary fibre [ 33 ]. Conversely, ferulic acid and p -coumaric acid were the major bound monomeric phenolic compounds in DRB and IDFDRB, and they totally accounted for 72.1% and 74.1% of their total bound monomeric phenolics, respectively.…”

Section: Resultsmentioning

confidence: 99%

A Comparison of the Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Phenolic Compounds from Rice Bran and Its Dietary Fibres

et al. 2018

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The composition, in vitro bioaccessibility and antioxidant activities of the phenolic compounds in defatted rice bran (DRB) and its soluble and insoluble dietary fibres were systematically evaluated in this study. The total phenolic content of insoluble dietary fibre from DRB (IDFDRB) was much higher than that of the soluble dietary fibre from DRB (SDFDRB) but was 10% lower than that of DRB. Bound phenolics accounted for more than 90% of the total phenolics in IDFDRB, whereas they accounted for 34.2% and 40.5% of the total phenolics in DRB and SDFDRB, respectively. Additionally, the phenolic profiles and antioxidant activities were significantly different in DRB, SDFDRB and IDFDRB. The phenolic compounds in IDFDRB were much less bioaccessibility than those in DRB and SDFDRB due to the higher proportion of bound phenolics in IDFDRB. Considering that bound phenolics could be released from food matrices by bacterial enzymes in the large intestine and go on to exert significant beneficial health effects in vivo, further studies on IDFDRB are needed to investigate the release of the phenolics from IDFDRB via gut microbiota and the related health benefits.

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Section: Resultsmentioning

confidence: 99%

A Comparison of the Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Phenolic Compounds from Rice Bran and Its Dietary Fibres

et al. 2018

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“…[26] The insoluble fibers in foxtail millet also exhibited antioxidant activity, with the yellow kind displaying higher amounts of antioxidants compared to the white variety. [31] The antioxidant features of the insoluble fibers might may be partly attributable to their phytochemical composition. [34] Polysaccharides derived from foxtail millet in a basic pH solution exhibited a higher capacity for scavenging 1,1-diphenyl-2-picrylhydrazyl (DPPH) and hydroxyl radicals.…”

Section: Phenolic Compoundsmentioning

confidence: 99%

Millet grain as a candidate antioxidant food resource: a review

Liang

Liu²

2019

International Journal of Food Properties

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Millet is a major drought-resistant crop that serves as a nutrient rich food staple in Africa and Asia. In addition, millet contains an abundance of bioactive compounds with antioxidant activity. The intake of antioxidants through the diet is essential for improving human health. This review aimed to evaluate the antioxidant compounds in millet, as well as the factors that influence antioxidant activity. The Millet contained several natural occurring phenolic compounds which include phenolic acids, flavonoids and tannins, in addition to xylo-oligosaccharides (XOs), insoluble fibers and peptides. Certain lipophilic antioxidants, including vitamin E and carotenoids, were extensively distributed among varieties. Furthermore, the bioactivity of the antioxidants can be affected by food processing. Germination and fermentation could enhance the antioxidant properties, due to increased antioxidants content (phenolic compounds). In summary, it is possible to use millet as a nutraceutical and antioxidant food resource to reduce disease risks and maintain health.

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“…Several previous studies have indicated that polyphenols are highly linked with metal chelating abilities due to the presence of hydroxyl and carboxyl groups attached to their structure [22][23][24]. Polyphenols, powerful metal chelating agents, act by inactivating metal ions by forming a complex with metals thereby preventing the metal ion from e Scientific World Journal initiating lipid oxidation [25,26]. It could be inferred from this study that the weak iron chelation activity exhibited by the plant extract may be due to the presence of polyphenolic compounds [13], which in turn chelate Fe 2+ ions.…”

Section: Discussionmentioning

confidence: 99%

Cytotoxic, Cellular Antioxidant, and Antiglucuronidase Properties of the Ethanol Leaf Extract from Bulbine asphodeloides

Otang-Mbeng

Sagbo

2021

The Scientific World Journal

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Bulbine asphodeloides (L.) Spreng (Xanthorrhoeaceae family), popularly known in South Africa as “ibhucu” or “Balsamkopieva,” is a perennial plant traditionally used to treat skin diseases, including sunburns, rough skin, dressing burns, itches, and aging. The present study reports the cytotoxic, cellular antioxidant, and antiglucuronidase properties of the ethanol leaf extract from B. asphodeloides. The cytotoxic effect of the plant extract on human dermal fibroblast (MRHF) cells was evaluated by the bis-Benzamide H 33342 trihydrochloride/propidium iodide (Hoechst 33342/PI) dual-staining method. A validated biological cell-based assay was used to determine the cellular antioxidant activity of the extract. The antiglucuronidase and metal chelating activities were evaluated using standard in vitro methods. Lipopolysaccharide- (LPS-) induced RAW 264.7 cell model was used to determine the anti-inflammatory effect of the plant extract, and the immune-modulatory activity was performed using RAW 264.7 cells. The extract demonstrated no cytotoxic effect towards the MRHF cells at all the tested concentrations. Furthermore, the extract also possessed significant cellular antioxidant and antiglucuronidase activities, but a weak effect of metal chelating activity in a dose-dependent manner. However, the extract showed no significant anti-inflammatory and immune-stimulatory activities. Overall, the results showed that B. asphodeloides may be a useful therapeutic agent for the treatment of skin diseases, therefore supporting its ethnomedicinal usage.

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Solvent optimization extraction of antioxidants from foxtail millet species’ insoluble fibers and their free radical scavenging properties

Cited by 25 publications

References 37 publications

A Comparison of the Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Phenolic Compounds from Rice Bran and Its Dietary Fibres

A Comparison of the Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Phenolic Compounds from Rice Bran and Its Dietary Fibres

Millet grain as a candidate antioxidant food resource: a review

Cytotoxic, Cellular Antioxidant, and Antiglucuronidase Properties of the Ethanol Leaf Extract from Bulbine asphodeloides

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