Nutritional value, physicochemical characterization and bioactive properties of the Brazilian quinoa<i>BRS Piabiru</i>

Sampaio, Shirley L.; Fernandes, Ângela; Pereira, Carla; Calhelha, Ricardo C.; Soković, Marina; Santos‐Buelga, Celestino; Barros, Lillian; Ferreira, Isabel C.F.R.

doi:10.1039/d0fo00055h

Cited by 26 publications

(22 citation statements)

References 38 publications

(73 reference statements)

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“…Furthermore, proteins content is considered high compared to other okra cultivars: Clemson spineless and dwarf long green varieties [ 9 ]. Okra pods present lower energetic intake (lower fat and carbohydrates) and lower protein intake when compared to quinoa from Brazil [ 10 ] and Chile [ 11 ], but a very similar profile in terms of water, fiber, protein, and fat content with various species of Amaranthus plants [ 12 ]. Total dietary fiber content of the analyzed Tunisian okra pods was 8.16 g 100 g −1 , fw.…”

Section: Resultsmentioning

confidence: 99%

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Chemical Composition, Nutritional Value, and Biological Evaluation of Tunisian Okra Pods (Abelmoschus esculentus L. Moench)

et al. 2020

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The aim of this work was to perform an unprecedented in-depth study on the bioactive phytochemicals of Abelmoschus esculentus L. Moench Tunisian landrace (Marsaouia). For this purpose, its nutritional, aroma volatile, and phenolic profiles were characterized, and sundry biological activities were assessed in vitro. The approximate composition revealed that total dietary fiber as the most abundant macronutrient, mainly insoluble dietary fiber, followed by total carbohydrates and proteins. In addition, okra pods were rich in K, Ca, Mg, organic acids, tocopherols, and chlorophylls. Gas Chromatography-Electron Impact Mass Spectrometry (GC-EIMS) analysis showed that oxygenated monoterpenes, sesquiterpene hydrocarbons, and phenylpropanoids were the predominant essential volatile components in A. esculentus pods. A total of eight flavonols were detected by High-Performance Liquid Chromatography coupled to a DAD detector and mass spectrometry by electrospray ionization (HPLC-DAD-MS/ESI); with quercetin-3-O-glucoside being the majority phenolic component, followed by quercetin-O-pentosyl-hexoside and quercetin-dihexoside. This pioneering study, evidences that Tunisian okra display promising antioxidant and cytotoxic actions, in addition to relevant inhibitory effects against α-amylase and α-glucosidase enzymes, and interesting analgesic activity.

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Section: Resultsmentioning

confidence: 99%

“…Oxalic acid and malic acid were the only organic acids detected in Greek genotypes [ 6 ]. Also, okra pods contain five times more organic acids than quinoa seeds from Brazil (4.6 g 100 g −1 fw) [ 10 ]. The composition in tocopherols, carotenoids, and chlorophyll are also shown in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

Chemical Composition, Nutritional Value, and Biological Evaluation of Tunisian Okra Pods (Abelmoschus esculentus L. Moench)

et al. 2020

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“…The content of β-tocopherol and δ-tocopherol was 0.9 and 3.1 mg kg −1 dm, respectively. Lower values of the isoforms αand γ-tocopherols were detected in a white genotype quinoa sample developed and adapted to the tropical climate of Brazil (Table 5) [53].…”

Section: Tocolsmentioning

confidence: 99%

“…In detail, genotypes grown in northern Chile had a total flavonoid glycoside content 2.6-fold higher than those from central and southern Chile. The analysis of flavonoid profiles by HPLC-DAD-ESI/MS in a Brazilian genotype of white quinoa allowed for the six flavonol glycosides derived from quercetin and kaempferol to be determined [53]. Quercetin 3-O-(2",6"-di-O-α-l-rhamnoside)-β-d-galactoside was the most abundant.…”

Section: South America Chilementioning

confidence: 99%

Functional Components and Anti-Nutritional Factors in Gluten-Free Grains: A Focus on Quinoa Seeds

Melini¹,

Melini²

2021

Foods

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Quinoa (Chenopodium quinoa Willd.) has recently received increasing interest from both scientists and consumers due to its suitability in gluten-free diets, its sustainability, and its claimed superfood qualities. The aim of this paper is to systematically review up-to-date studies on quinoa functional components and anti-nutritional factors, in order to define a baseline for food scientists approaching the investigation of quinoa phytochemicals and providing evidence for the identification of healthier sustainable foods. State of the art evaluations of phytochemical contents in quinoa seeds were obtained. It emerged that phenolic compounds are the most investigated functional components, and spectrophotometric methods have been mostly applied, despite the fact that they do not provide information about single components. Saponins are the most studied among anti-nutritional factors. Betalains, tannins, and phytoecdysteroids have been poorly explored. Information on factors affecting the phytochemical content at harvesting, such as quinoa ecotypes, crop geographical location and growing conditions, are not always available. A comprehensive characterization, encompassing several classes of functional components and anti-nutritional factors, is mainly available for quinoa varieties from South America. However, defining a standard of quality for quinoa seeds is still challenging and requires a harmonization of the analytical approaches, among others.

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“…There are more than 3,000 quinoa ecotypes whose potential and nutritional value have not been explored outside the Andes. Many studies have been performed to analyze the tolerance of different quinoa genotypes to abiotic stress in terms of its agronomic performance (Adolf et al, 2013;Ruiz et al, 2016;Mamedov et al, 2020), whereas a few have been conducted to explore the effects of high salinity response on the nutritional profile of quinoa seeds (Sampaio et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Differential Impact of Salinity Stress on Seeds Minerals, Storage Proteins, Fatty Acids, and Squalene Composition of New Quinoa Genotype, Grown in Hyper-Arid Desert Environments

Toderich

Mamadrahimov

Khaitov³

et al. 2020

Front. Plant Sci.

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The effects of climate change and soil salinization on dryland ecosystems are already widespread, and ensuring food security is a crucial challenge. In this article, we demonstrate changes in growth performance and seed quality of a new high-yielding quinoa genotype (Q5) exposed to sodium chloride (NaCl), sodium sulfate (Na2SO4), and mixed salts (NaCl + Na2SO4). Differential responses to salt stress in growth performance, seed yield, and seed quality were identified. High salinity (mixed Na2SO4 + NaCl) reduces plant height by ∼30%, shoot and root dry weights by ∼29%, head panicle length and panicle weight by 36–43%, and seed yield by 37%, compared with control conditions. However, the 1,000-seed weight changes insignificantly under salinity. High content of essential minerals, such as Fe, Zn, and Ca in quinoa Q5 seeds produced under salinity, gives the Q5 genotype a remarkable advantage for human consumption. Biomarkers detected in our studies show that the content of most essential amino acids is unchanged under salinity. The content of amino acids Pro, Gly, and Ile positively correlates with Na+ concentration in soil and seeds, whereas the content of squalene and most fatty acids negatively correlates. Variation in squalene content under increasing salinity is most likely due to toxic effects of sodium and chlorine ions as a result of the decrease in membrane permeability for ion movement as a protective reaction to an increase in the sodium ion concentration. Low squalene accumulation might also occur to redirect the NADPH cofactor to enhance the biosynthesis of proline in response to salinity, as both syntheses (squalene and proline) require NADPH. This evidence can potentially be used by the food and pharmaceutical industries in the development of new food and health products.

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Nutritional value, physicochemical characterization and bioactive properties of the Brazilian quinoaBRS Piabiru

Abstract: Quinoa is a very interesting food due to its nutritional and chemical composition, as well as its bioactive properties, such as antioxidant and antimicrobial activity.

Cited by 26 publications

References 38 publications

Chemical Composition, Nutritional Value, and Biological Evaluation of Tunisian Okra Pods (Abelmoschus esculentus L. Moench)

Chemical Composition, Nutritional Value, and Biological Evaluation of Tunisian Okra Pods (Abelmoschus esculentus L. Moench)

Functional Components and Anti-Nutritional Factors in Gluten-Free Grains: A Focus on Quinoa Seeds

Differential Impact of Salinity Stress on Seeds Minerals, Storage Proteins, Fatty Acids, and Squalene Composition of New Quinoa Genotype, Grown in Hyper-Arid Desert Environments

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