Protein and antioxidant composition of quinoa (Chenopodium quinoa Willd.) sprout from seeds submitted to water stress, salinity and light conditions

Fischer, Susana; Wilckens, Rosemarie; Jara, Jorge; Aranda, Mario; Valdivia, Walter D.; Bustamante, Luis; Graf, Fernando; Obal, Ismael

doi:10.1016/j.indcrop.2017.04.035

Cited by 44 publications

(21 citation statements)

References 48 publications

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“…Given the strong correlation found between embryo and seed weight ( r = 0.94; p < 0.001) over the range of sowing dates explored in our study, the seed weight rather than embryo weight as a trait determining seed components in quinoa can be used as an indirect criteria to improve quality composition in this crop. Both salinity and water stress affect seed size and protein and fat concentrations in quinoa (Fischer et al., ; Koyro & Eisa, ). Our results suggest that these factors affected protein and fat accumulations and seed size in a way which is not related to the distribution of nutrients among different tissues within the seed and point out the specific environmental and genetic effects on each of these components.…”

Section: Resultsmentioning

confidence: 99%

Trade‐off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates

et al. 2018

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Background and objectives The relative influences of genetic and environmental factors on seed composition traits as well as the interrelations among these attributes and seed yield are largely unknown in quinoa. These aspects are approached here through experiments conducted at a low elevation temperate environment with four quinoa genotypes sown at three dates and the hypothesis that variation in seed composition traits can be explained by the relative embryo size was tested. Findings There was an important range of variation for almost all seed composition traits, and the genotype‐by‐sowing date (G × S) interaction effect was significant for yield and its components plus protein and oil concentrations. Variation in fat and protein concentration was associated with embryo and seed size but not with relative embryo size (trait indifferent to environmental and genetic factors). A winter sowing date induced positive associations between fat and carbohydrate concentrations, seed, and embryo weight, but negative associations among almost all of these traits and seed yield and protein content. On the other hand, a mid‐spring sowing date induced positive associations between seed yield and protein content. Conclusions Winter sowing dates are suited for obtaining heavier seeds associated with higher fat and carbohydrates concentrations under the explored conditions; whereas under mid‐spring sowings higher seed yield, associated with high protein content but at the expense of smaller seeds are achieved. Significance and novelty Variability in the main seed composition traits in sea level quinoa cultivars was explained mostly by G × S interaction. The choice of genotypes and sowing dates that modify the trade‐offs between the main yield and seed composition traits might contribute to obtain a specific quality and higher yields. Variation in protein and fat concentrations was no associated with the relative embryo size.

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Section: Resultsmentioning

confidence: 99%

Trade‐off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates

et al. 2018

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“…Results showed an increase in the seed antioxidant capacity of all three varieties and a minimal reduction in seed yield in ‘AG2010’ under 20% soil water availability relative to 95% soil water availability [94]. Moreover, 20% soil water availability in ‘AG2010’ increased globulin content, and the effect of washing quinoa seeds with water changed the concentration and electrophoretic pattern of albumins and globulins [95].…”

Section: Droughtmentioning

confidence: 99%

Quinoa Abiotic Stress Responses: A Review

Hinojosa

González

Barrios-Masias

et al. 2018

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Quinoa (Chenopodium quinoa Willd.) is a genetically diverse Andean crop that has earned special attention worldwide due to its nutritional and health benefits and its ability to adapt to contrasting environments, including nutrient-poor and saline soils and drought stressed marginal agroecosystems. Drought and salinity are the abiotic stresses most studied in quinoa; however, studies of other important stress factors, such as heat, cold, heavy metals, and UV-B light irradiance, are severely limited. In the last few decades, the incidence of abiotic stress has been accentuated by the increase in unpredictable weather patterns. Furthermore, stresses habitually occur as combinations of two or more. The goals of this review are to: (1) provide an in-depth description of the existing knowledge of quinoa’s tolerance to different abiotic stressors; (2) summarize quinoa’s physiological responses to these stressors; and (3) describe novel advances in molecular tools that can aid our understanding of the mechanisms underlying quinoa’s abiotic stress tolerance.

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“…The major proteins in quinoa seeds are albumins and globulins, accounting for 35% and 37%, respectively [11]. Recently, much attention has been given to the nutritional value and functional properties of quinoa protein [14,15], and bioactive peptides such as DPP-IV (dipeptidyl-peptidase IV) inhibitory peptides and antioxidant peptides have been identified from quinoa protein isolate and globulin [16][17][18][19]. However, scant information is available about the antioxidant and ACE-inhibitory activities of quinoa albumin or its hydrolysates.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Novel ACE-Inhibitory and Antioxidant Peptides from Quinoa Bran Albumin Assisted with an In Silico Approach: Characterization, In Vivo Antihypertension, and Molecular Docking

et al. 2019

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Albumin is the major fraction of quinoa protein that is characterized as having high nutritional value. However, until now, scant information is available on the bioactivity of quinoa albumin or its hydrolysates. To promote its usage, we extracted albumin in this study from quinoa bran assisted with cellulase and hemicellulose, and hydrolyzed it by alcalase and trypsin to produce bioactive peptides. The hydrolysates (QBAH) were purified by gel filtration and reversed-phase high-performance liquid chromatography (RP-HPLC), followed by identification using liquid chromatography-mass spectrometry (LC-MS/MS). Furthermore, based on in silico analysis, one angiotensin-I converting enzyme (ACE)-inhibitory and antioxidant peptide, RGQVIYVL (946.6 Da), and two antioxidant peptides, ASPKPSSA (743.8 Da), and QFLLAGR (803.5 Da), from QBAH were synthesized. RGQVIYVL showed a high ACE-inhibitory activity (IC 50 = 38.16 µM) with competitive mode of inhibition, and showed significant antihypertensive effect in spontaneously hypertensive rats at a concentration of 100-150 mg/kg body weight (bw). Molecular docking simulation showed that it could interact with the active ACE site via hydrogen bonds with high binding power. Moreover, RGQVIYVL, ASPKPSSA, and QFLLAGR all demonstrated high ·OH scavenging activity (IC 50 = 61.69-117.46 µM), ABTS + scavenging activity (58.29-74.28%) and Fe 2+ chelating ability (32.54-82.48% at 0.5 mg/mL). They could also retain activity after gastrointestinal enzyme digestion. These results indicate that quinoa albumin is a potential source of bioactive peptides possessing antioxidant and ACE-inhibitory activities.

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Protein and antioxidant composition of quinoa (Chenopodium quinoa Willd.) sprout from seeds submitted to water stress, salinity and light conditions

Cited by 44 publications

References 48 publications

Trade‐off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates

Trade‐off between seed yield components and seed composition traits in sea level quinoa in response to sowing dates

Quinoa Abiotic Stress Responses: A Review

Isolation of Novel ACE-Inhibitory and Antioxidant Peptides from Quinoa Bran Albumin Assisted with an In Silico Approach: Characterization, In Vivo Antihypertension, and Molecular Docking

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