Antioxidant capacity, total phenolics and nutritional content in selected ethiopian staple food ingredients

Forsido, Sirawdink Fikreyesus; Rupasinghe, H.P. Vasantha; Astatkie, Tess

doi:10.3109/09637486.2013.806448

Cited by 77 publications

(77 citation statements)

References 35 publications

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“…Soluble, bound, and total PCs of the tef grain varieties are given in Table I. Soluble PCs of unknown tef varieties that ranged from 829 to 1,147 mg of GAE/100 g db (Boka et al 2013) and 126 mg of GAE/100 g db (Forsido et al 2013) are much higher compared with what is reported here. There was a significant difference in soluble PCs among the varieties (P < 0.001).…”

Section: Resultscontrasting

confidence: 46%

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Antioxidant Potentials and Phenolic Composition of Tef Varieties: An Indigenous Ethiopian Cereal

Shumoy

2016

Cereal Chem

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Cereal Chem. 93(5):465-470Tef, Eragrostis tef (Zucc.) Trotter, is a cereal crop originated and diversified in Ethiopia, where it is used to produce a range of food products. This study aimed to profile and quantify the phenolic composition and antioxidant potential of seven tef grain varieties. Soluble and bound phenolics ranged from 37 to 71 and from 226 to 376 mg of gallic acid equivalent/100 g dry basis (db), and soluble and bound flavonoid contents varied between 36 and 64 and between 113 and 258 mg of catechin equivalent/100 g db, respectively. Protocatechuic, vanillic, syringic, p-coumaric, sinapic, ferulic, and rosmarinic acids, catechin, and naringenin were detected at least in three of the varieties studied. The dominant phenolic compounds were catechin, rosmarinic acid, and ferulic acid in the soluble extracts, whereas ferulic, rosmarinic, and p-coumaric acids were the dominant ones in the bound extract. Gallic, caffeic, and salicylic acids were not detected in any of the varieties studied. The majority (>84%) of tef grain phenolics were found in bound form, contributing >84% of total 2,2-diphenyl-1-picrylhydrazyl antioxidative capacity and >80% of total ferric reducing antioxidant power. These results clearly demonstrated the differences in phenolic profile among tef grain varieties. These results are relevant for developing healthy and nutritious tef-based food products. † Corresponding author. Phone: +32 (0)56 24 12 37.

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Section: Resultscontrasting

confidence: 46%

“…Boka et al (2013), Forsido et al (2013), and Salawu et al (2014) studied the antioxidant capacity of tef by taking samples of unknown tef varieties or tef flour. Boka et al (2013), Forsido et al (2013), and Salawu et al (2014) studied the antioxidant capacity of tef by taking samples of unknown tef varieties or tef flour.…”

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confidence: 99%

Antioxidant Potentials and Phenolic Composition of Tef Varieties: An Indigenous Ethiopian Cereal

Shumoy

2016

Cereal Chem

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“…Teff had the highest ferric reducing antioxidant power (FRAP). The FRAP and TPC of teff (1.8mmol Trolox equivalence/100 g dry matter (DM) and 123.6mg gallic acid equivalent/100g DM, respectively) [26].…”

Section: Journal Of Food and Nutrition Researchmentioning

confidence: 99%

Teff: Suitability for Different Food Applications and as a Raw Material of Gluten-free, a Literature Review

Nascimento¹,

Paes²,

Oliveira³

et al. 2018

JFNR

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Teff has naturally higher nutritional value when compared to many other grains, and doesn't need to be fortified. Naturally gluten-free, the grain of teff can substitute for wheat flour and other cereals in anything from bread and pasta to waffles and pizza bases, as well as foods for people with celiac disease. Thus, the main objective of this article is to review researches on teff, evaluate its suitability for different food applications, and give direction for further research on its applications for gluten free food market. Teff grain size is known to be extremely small with mean length ranging 0.61-1.17mm and it is considered a superior grain due to its nutritional merits. Teff is rich in carbohydrate, fiber and contains more iron, calcium and zinc than other cereal grains, including wheat, barley and sorghum. Teff has an excellent balance of essential amino acids and is a good source of calcium and iron, which may explain the low occurrence of anemia in areas of Ethiopia where to regular teff consumption. Hence, Teff is an ideal and healthy ingredient for many gluten-free recipes.

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“…These compounds were isolated from Eragrostis genus for the first time. Antioxidant or neuroprotective activities of E. ferruginea and E. japonica might be mediated by the previously reported compounds, tricin, ageconyflavone A, nectandrin B, and 4-ketopinoresinol [5] and by the isolated compounds in this study, isoorientin (1), isovitexin (2), and caffeic acid (3), respectively. Antioxidant activity of E. curvula also might be induced by the previously reported flavones, tricin and violanthin [20].…”

Section: Neuroprotective Activity Assessmentmentioning

confidence: 93%

“…The methanol (MeOH) extracts from the flour of E. tef and E. tef varieties showed antioxidant activity using the 1,1-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH RSA) [1][2]. The hexane extract of E. viscosa presented moderate molluscicidal activity against the snail Biomphalaria glabrata and 4 diterpenoids were isolated from the extract [3].…”

Section: Previous Studiesmentioning

confidence: 99%

Antioxidant and Neuroprotective Activity of the Aerial Parts of Seven Eragrostis Species and Bioactive Compounds from E. japonica

Na¹,

Lee²,

Hong³

et al. 2017

Rec. Nat. Prod.

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Abstract:The main purpose of this study was to evaluate the antioxidant and neuroprotective activities in the aerial parts of seven Eragrostis species (Poaceae) and to find antioxidant or neuroprotective compounds from the most active species. The total phenolic content (TPC), total flavonoid content (TFC), 1,1-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH RSA), total antioxidant capacity (TAC), and neuroprotective activity against amyloid beta peptide induced toxicity in PC12 cells were measured in the methanol extracts of the aerial parts of E. ferruginea, E. cilianensis, E. minor, E. multicaulis, E. pilosa, E. japonica, and E. curvula collected from June to August 2013. All species showed antioxidant or neuroprotective activities and, among them, E. japonica was the most active species to isolate antioxidant or neuroprotective compounds, because it was found to show both the highest TPC (10.63 ± 0.31 mg/g) and TFC (2.83 ± 0.06 mg/g) values, as well as TAC (11.34 ± 0.80 mg/g) and DPPH RSA (47.07 ± 2.81 µg/mL), with the second-highest neuroprotective value (23.0 µg/mL). Three known compounds were isolated from E. japonica by the bioassay guided approach and these were identified as isoorientin, isovitexin, and caffeic acid that have antioxidant and neuroprotective activities.

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Antioxidant capacity, total phenolics and nutritional content in selected ethiopian staple food ingredients

Cited by 77 publications

References 35 publications

Antioxidant Potentials and Phenolic Composition of Tef Varieties: An Indigenous Ethiopian Cereal

Antioxidant Potentials and Phenolic Composition of Tef Varieties: An Indigenous Ethiopian Cereal

Teff: Suitability for Different Food Applications and as a Raw Material of Gluten-free, a Literature Review

Antioxidant and Neuroprotective Activity of the Aerial Parts of Seven Eragrostis Species and Bioactive Compounds from E. japonica

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