Polyphenol Composition and in Vitro Antioxidant Activity of Amaranth, Quinoa Buckwheat and Wheat as Affected by Sprouting and Baking
Abstract
This study examined the polyphenol composition and antioxidant properties of methanolic extracts from amaranth, quinoa, buckwheat and wheat, and evaluated how these properties were affected following two types of processing: sprouting and baking. The total phenol content amongst the seed extracts were significantly higher in buckwheat (323.4mgGAE/100g) and decreased in the following order: buckwheat>quinoa>wheat>amaranth. Antioxidant capacity, measured by the radical 2,2-diphenyl-1-picylhydrazyl scavenging capacity and the ferric ion reducing antioxidant power assays was also highest for buckwheat seed extract (p <0.01). Total phenol content and antioxidant activity was generally found to increase with sprouting, and a decrease in levels was observed following breadmaking. Analysis by liquid chromatography coupled with diode array detector revealed the presence of phenolic acids, catechins, flavanol, flavone and flavonol glycosides. Overall, quinoa and buckwheat seeds and sprouts represent potential rich sources of polyphenol compounds for enhancing the nutritive properties of foods such as gluten-free breads.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Alvarez-Jubete et al. highlighted quinoa's potential as a rich source of antioxidants.
“Furthermore, quinoa’s potential as a rich source of antioxidants is highlighted by the study by Alvarez-Jubete et. al. examining the polyphenol content and antioxidant qualities of methanolic extracts from the grain [203].”
From Ecdysterone and Turkesterone—Compounds with Prominent Potential in Sport and Healthy Nutrition (2024) · cites this paper as [203]
In vitro studies reported quinoa's effects on gut microbiota and cancer cells, antioxidant and antidiabetic properties, platelet activity, and modulating collagenase activity.
“The in vitro studies presented in Table 7 reported quinoa’s effects on gut microbiota and cancer cells, antioxidant and antidiabetic properties, platelet activity, and modulating collagenase activity [201,202,203,204,205,206,207].”
From Ecdysterone and Turkesterone—Compounds with Prominent Potential in Sport and Healthy Nutrition (2024) · cites this paper as [203]
The citation lists haven’t been fetched yet
References 38 · Cited by 736
- Authors
- Alvarez-Jubete, L., Wijngaard, H., Arendt, E. K., & Gallagher, E.
- Affiliations
- Teagasc - The Irish Agriculture and Food Development Authority (IE)
- National University of Ireland (IE)
- Corresponding author
- Gallagher, E.
- Venue
- Food Chemistry
- Publisher
- Elsevier BV
- Published
- 2010-03-15
- Volume
- 119
- Issue
- 2
- Pages
- 770-778
- ISSN
- 0308-8146 (ISSN-L)
- OpenAlex
- W2037896951
- Cited by
- 736
- References
- 38
- Citations by year
- 2026: 22 · 2025: 37 · 2024: 53 · 2023: 56 · 2022: 61 · 2021: 65 · 2020: 66 · 2019: 71 · 2018: 44 · 2017: 46 · 2016: 46 · 2015: 46 · 2014: 37 · 2013: 26 · 2012: 31
- FWCI
- 31.76
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Food Chemistry (publishedVersion)
- Funders
- Enterprise Ireland
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Seed and Plant Biochemistry
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Health Sciences › Nursing › Nutrition and Dietetics › Food Science and Nutritional Studies
- Keywords
- polyphenols, antioxidant activity, Amaranthus, quinoa, buckwheat, wheat, seed germination, bread making, total phenolic content, DPPH radical scavenging, ferric reducing antioxidant power, phenolic acids, catechins, flavonoid glycosides, gluten-free bread, functional foods
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
