Phenolic Compounds and Saponins in Quinoa Samples (Chenopodium quinoa Willd.) Grown under Different Saline and Nonsaline Irrigation Regimens
Abstract
Quinoa is a pseudocereal from South America that has received increased interest around the world because it is a good source of different nutrients and rich in antioxidant compounds. Thus, this study has focused on the effects of different agronomic variables, such as irrigation and salinity, on the phenolic and saponin profiles of quinoa. It was observed that irrigation with 25% of full water restitution, with and without the addition of salt, was associated with increases in free phenolic compounds of 23.16 and 26.27%, respectively. In contrast, bound phenolic compounds were not affected by environmental stresses. Saponins decreased if samples were exposed to drought and saline regimens. In situations of severe water deficit, the saponins content decreased 45%, and 50% when a salt stress was added. The results suggest that irrigation and salinity may regulate the production of bioactive compounds in quinoa, influencing its nutritional and industrial values.
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In previous studies, total FG content of 1-2 quinoa cultivars ranged from 543 to 2561 μg/g.
“FG content of 1 – 2 quinoa cultivars was measured via LC-UV-MS in 3 separate studies, showing total FG contents ranging from 543 – 2561 μg/g.10, 21, 30”
FG function as protective plant compounds that increase under water stress.
“Since FG function as protective plant compounds that increase under water stress,21, 22”
It is plausible that Northern Chilean varieties have evolved genetic mechanisms to promote FG accumulation as an adaptive strategy to survive extreme environmental conditions.
“Since FG function as protective plant compounds that increase under water stress,21, 22 it is plausible that Northern Chilean varieties have evolved genetic mechanisms to promote FG accumulation as an adaptive strategy to survive extreme environmental conditions.”
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- Authors
- Gómez-Caravaca, A. M., Iafelice, G., Lavini, A., Pulvento, C., Caboni, M. F., & Marconi, E.
- Affiliations
- Dipartimento di Scienze degli Alimenti, Università di Bologna, Piazza Goidanich 60, 47521 Cesena (FC), Italy
- University of Molise (IT)
- National Research Council (IT)
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-04-26
- Volume
- 60
- Issue
- 18
- Pages
- 4620-4627
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W2043252876
- Cited by
- 142
- References
- 39
- Citations by year
- 2026: 9 · 2025: 8 · 2024: 9 · 2023: 12 · 2022: 5 · 2021: 24 · 2020: 7 · 2019: 18 · 2018: 10 · 2017: 6 · 2016: 9 · 2015: 11 · 2014: 5 · 2013: 8 · 2012: 1
- FWCI
- 12.27
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Agricultural and Food Chemistry (publishedVersion)
- PubMed (publishedVersion)
- Archivio Istituzionale della Ricerca - Università degli Studi del Molise (submittedVersion)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
- Topics
- Life Sciences › Agricultural and Biological Sciences › Food Science › Seed and Plant Biochemistry
- Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
- Keywords
- quinoa, phenolic compounds, saponins, salt stress, drought stress, irrigation deficit, bioactive compounds, antioxidants, pseudocereals
- MeSH terms
- Antioxidants, Cinnamates, Flavonoids, Italy, Phenols, Saponins, Seeds, Stress, Physiological, Chenopodium quinoa, Salinity, Droughts, Agricultural Irrigation
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