Antioxidant activity of Amaranthus species from the Amaranthaceae family – A review

Adegbola, Peter Ifeoluwa; Adetutu, Adewale; Olaniyi, Temitope Deborah

doi:10.1016/j.sajb.2020.07.003

Cited by 41 publications

(14 citation statements)

References 30 publications

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“…In the human body, oxidative stress plays an important role by being the initiator of chronic degenerative and neurodegenerative diseases along with some types of cancer (Sindhi et al 2013, Neha et al 2019. In this sense, an effective antioxidant complex can remove free radicals and ROS at different cell sites, limiting the harmful effects on cells and tissues (Adegbola et al 2020). Therefore, the phenolic compounds existing in the extracts of H. longipes could contribute towards the protection against oxidative damage triggered by overproduction of free radicals.…”

Section: Discussionmentioning

confidence: 99%

Phenolic compounds and antioxidant activity of methanolic extracts from leaves and flowers of chilcuague ( Heliopsis longipes , Asteraceae)

et al. 2020

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Background: Heliopsis longipes root is the widely used organ from the plant due to its culinary and medicinal importance. Nevertheless, during its collection the foliage is discarded. Therefore, it is required to perform studies about the phytochemical content with biological activity present in the different plant organs of the foliage, for a better exploitation of the plant. Hypothesis: The concentration of phenolic compounds with antioxidant activity varies according to the type of plant organ and the geographic location of the plant collection. Study species: Heliopsis longipes Site and years of study: The H. longipes plants were collected in three locations (Conca, San Juan Buenaventura and Beltran) from Sierra Gorda of Mexico, between 2017 and 2018. Methods: In this study, they were analyzed the methanolic extracts from H. longipes leaves and flowers, in order to determine the content of the phenolic compounds and scavenging of radicals activity (DPPH• and ABTS•+). Further characterization of the extracts was carried out by chromatography (UPLC). Results: The total content of polyphenols, flavonoids and condensed tannins varied in depending on the type of plant organ and the origin site of H. longipes, being the leaves of Beltran those that represent the best source of phenolic compounds with scavenging activity of the radicals DPPH• and ABTS•+. In the extracts, phenolic acids and flavonoids were identified. Conclusions: The geographical climatic conditions influence the phenolic content and antioxidant activity of the methanolic extracts from leaves and flowers of H. longipes.

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Section: Discussionmentioning

confidence: 99%

Phenolic compounds and antioxidant activity of methanolic extracts from leaves and flowers of chilcuague ( Heliopsis longipes , Asteraceae)

et al. 2020

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“…Many studies confirm the antioxidant activity of extracts made from different parts of Amaranthus spp. [ 17 , 18 ]. Natural sources of antioxidants are primary plant phenolic compounds that may occur in all parts of plants, such as the fruits, vegetables, nuts, seeds, leaves, roots and bark [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

New Mutant Amaranth Varieties as a Potential Source of Biologically Active Substances

Fejér

Kron²,

Eliašová

et al. 2021

Antioxidants

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Amaranth species represent a diverse group of plants. Many of them are a rich source of secondary metabolites with many positive biological effects. Total phenolic, total flavonoid and rutin content, antioxidant activity against superoxide and hydroxyl radicals, FRAP (Ferric-reducing ability of plasma) assay and DPPH (2,2-Diphenyl-1-picrylhydrazyl) radical scavenging assay were determined in ethanol extracts of dried leaves of the new Slovak amaranth varieties ‘Pribina’ and ‘Zobor’. The amount of total phenolic substances (‘Pribina’ GAE 38.3 mg.g−1 DM and ‘Zobor’ GAE 26.1 mg.g−1 DM), content of total flavonoids (‘Pribina’ QE 26.5 mg.g−1 DM and ‘Zobor’ QE 20.3 mg.g−1 DM) and rutin (‘Pribina’ 50.8 mg.g−1 DM and ‘Zobor’ 15.2 mg.g−1 DM) were higher in the variety ‘Pribina’, compared to the variety ‘Zobor’. A statistically higher antioxidant activity against superoxide radical (1.63%·mg−1g−1 DM), hydroxyl radical (3.20%.mg−1g−1 DM), FRAP assay (292.80 µmol.L−1·mg−1.g−1 DM) and DPPH (54.2 ± 1.78 µg.mL−1 DM) were detected in the ‘Pribina’ variety. Antiradical and antioxidant activities of both extracts showed high positive correlations in relation to the content of total phenolic substances, total flavonoids and rutin. Amaranth is an undemanding crop on specific environmental conditions and is resistant to abiotic and biotic stress.

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“…Concerning this context, antioxidants rich plants, especially underutilized species, their protein hydrolysates and bioactive peptides with antioxidant properties can be widely utilized [20,31]. The published data on in vitro and in vivo findings revealed that the genus Amaranthus has health-protective and therapeutic properties ascribed mainly to its potent antioxidant potential [2,32]. Notably, Amaranthus caudatus has been positioned in the top five vegetable plants with antioxidant potential [3].…”

Section: Introductionmentioning

confidence: 99%

“…The antioxidant ability of four Amaranthus spp. (A. spinosus, A. viridis, A. graecizans, and A. hybridus) was the focus of Adegbola et al [32] and mainly reviewed in literature before 2015. Coelho et al [35] evaluated the nutritional and functional attributes and amaranth as microencapsulation material.…”

Section: Introductionmentioning

confidence: 99%

A Review of Recent Studies on the Antioxidant Activities of a Third-Millennium Food: Amaranthus spp.

2020

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Amaranth (Amaranthus spp.) plant commonly refers to the sustainable food crop for the 21st century. The crop has witnessed significant attention in recent years due to its high nutritional value and agronomic advantages. It is a relatively well-balanced cosmopolitan food that is a protector against chronic diseases. Usually, the antioxidant activities of amaranth are held responsible for its defensive behavior. Antioxidant activity of plants, generally, is attributed to their phytochemical compounds. The current interest, however, lies in hydrolysates and bioactive peptides because of their numerous biological functions, including antioxidant effect. While the importance of bioactive peptides has been progressively recognized, an integrated review of recent studies on the antioxidant ability of amaranth species, especially their hydrolysates and peptides has not been generated. Hence, in this review, we summarize studies focused on the antioxidant capacity of amaranth renewal over the period 2015–2020. It starts with a background and overall image of the amaranth-related published reviews. The current research focusing on in vitro, in vivo, and chemical assays-based antioxidant activity of different amaranth species are addressed. Finally, the last segment includes the latest studies concerning free radical scavenging activity and metal chelation capacity of amaranth protein hydrolysates and bioactive peptides.

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Antioxidant activity of Amaranthus species from the Amaranthaceae family – A review

Cited by 41 publications

References 30 publications

Phenolic compounds and antioxidant activity of methanolic extracts from leaves and flowers of chilcuague ( Heliopsis longipes , Asteraceae)

Phenolic compounds and antioxidant activity of methanolic extracts from leaves and flowers of chilcuague ( Heliopsis longipes , Asteraceae)

New Mutant Amaranth Varieties as a Potential Source of Biologically Active Substances

A Review of Recent Studies on the Antioxidant Activities of a Third-Millennium Food: Amaranthus spp.

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