scholarly journals Halotolerant bacteria isolated from extreme environments induce seed germination and growth of chia (Salvia hispanica L.) and quinoa (Chenopodium quinoa Willd.) under saline stress

2021 ◽  
Vol 218 ◽  
pp. 112273
Author(s):  
María Florencia Yañez-Yazlle ◽  
Neli Romano-Armada ◽  
Martín Moises Acreche ◽  
Verónica Beatriz Rajal ◽  
Verónica Patricia Irazusta
Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1537
Author(s):  
Raquel Selma-Gracia ◽  
Polona Megušar ◽  
Claudia Monika Haros ◽  
José Moisés Laparra Llopis

Innate immunity plays a determinant role in high fat diet (HFD)-induced insulin resistance. This study compares the effects of immunonutritional bioactives from Chenopodium quinoa (WQ) or Salvia hispanica L. (Ch) when used to partially replace wheat flour (WB) into bread formulations. These flours were chosen to condition starch and lipid content in the products as well as because their immunonutritional activity. To be administered with different bread formulations, HFD-fed C57BL/6J mice were distributed in different groups: (i) wild type, (ii) displaying inherited disturbances in glucose homeostasis, and (iii) displaying dietary iron-mediated impairment of the innate immune TLR4/TRAM/TRIF pathway. We analyze the effects of the products on glycaemia and insulin resistance (HOMA-IR), plasmatic triglycerides, intestinal and hepatic gene expression and variations of myeloid (MY), and lymphoid (LY) cells population in peripheral blood. Our results show that feeding animals with WQ and Ch formulations influenced the expression of lipogenic and coronary risk markers, thus attaining a better control of hepatic lipid accumulation. WQ and Ch products also improved glucose homeostasis compared to WB, normalizing the HOMA-IR in animals with an altered glucose and lipid metabolism. These positive effects were associated with positive variations in the peripheral myeloid cells population.


Proceedings ◽  
2020 ◽  
Vol 53 (1) ◽  
pp. 2
Author(s):  
Raquel Selma-Gracia ◽  
Claudia Monika Haros ◽  
José Moisés Laparra

Impaired glucose homeostasis is associated with an increased risk of developing metabolic alterations. In this study, a model in which mice treated with streptozotocin were fed a high-fat diet was used to mimic early stages of the onset of metabolic disorders, and different bread formulations were administrated to evaluate the effect of replacing wheat flour with Chenopodium quinoa (Q) (25%) and Salvia hispanica L. (Sh) (20%). Plasmatic glucose and insulin concentrations were quantified and the homeostasis model assessment (HOMAir) was calculated. Q and Sh showed a lower tendency to hyperglycemia compared to wheat bread (WB). Besides, these low glucose levels were accompanied by three-fold lower values of HOMAir respect to WB, suggesting an improved insulin sensitivity. Thus, inclusion of C. quinoa and S. hispanica into bread formulations could improve the control of glucose homeostasis, which could help to prevent/ameliorate metabolic glucose alterations.


2020 ◽  
Vol 11 (9) ◽  
pp. 7994-8002
Author(s):  
Raquel Selma-Gracia ◽  
Claudia Monika Haros ◽  
José Moisés Laparra Llopis

High-energy intake causes imbalances in nutrient homeostasis contributing to a high prevalence of metabolic chronic diseases.


2018 ◽  
Vol 67 (2) ◽  
pp. 215-222 ◽  
Author(s):  
Olga Lucía Torres Vargas ◽  
Angela Janet García Salcedo ◽  
Hernando Ariza Calderón

Las harinas de quinua, amaranto y la chía tienen proporciones considerables de proteína, almidón, fibra dietética, lípidos, minerales, vitaminas y componentes bioactivos, lo que les confiere propiedades excepcionales para la nutrición humana. El objetivo de esta investigación fue la caracterización fisicoquímica de las harinas y semillas de quinua, amaranto y chía mediante la realización de un análisis proximal, óptico, funcional, térmico y estructural. A partir de los resultados obtenidos en el análisis proximal, se determinaron proporciones considerables de proteína y fibra para las tres harinas, siendo mayor en harina de chía con valores de 28,56% y 39,8%, respectivamente. Estos resultados fueron corroborados por el análisis de microscopía óptica realizada a cortes longitudinales en las tres semillas. Los parámetros térmicos, indicaron que las tres harinas presentaron un proceso de degradación térmica no reversible y un cambio de transición vítrea para la harina de amaranto y chía a temperaturas superiores a 100ºC. La caracterización estructural de las harinas por FTIR, permitió identificar diferencias en las bandas de absorción características de proteínas y lípidos. Patrones de difracción de almidón tipo A, para las harinas de quínoa y amaranto fueron identificados, mientras que la harina de chía presentó dos picos cristalinos correspondientes a calcio y magnesio. Las imágenes SEM permitieron observar agregados de almidones en la harina de quínoa, una estructura compleja compuesta por proteínas esféricas que rodea los almidones en harina de amaranto y estructuras fibrosas y proteínas esféricas en harina de chía.


Author(s):  
Zeynep Dumanoğlu ◽  
Hakan Geren

To meet the nutritional requirements required for human and animal nutrition due to climatic changes, research on determination of rich in nutrients and quality, products with high resistance to adverse environmental conditions and their possibilities for growing and reproduction are carried out. This research was carried out between 2018-2019. As a material, seeds belonging to the amaranth (Amarantus mantegazzianus), chia (Salvia hispanica L.), quinoa (Chenopodium quinoa) and teff (Eragrostis tef [Zucc] Trotter) plants were studied. Some characteristics of these seeds were determined such as shape, size, mean arithmetic and geometric diameter, sphericity and thousand grain weight. According to the data obtained; the highest average length (1.140 mm), width (1.080 mm) and surface area (0.930 mm2) of the seeds of the quinoa seeds compared to other seeds; the tambourine seeds had the lowest average length (0.540 mm), width (0.300 mm) and surface area (0.130 mm2) values. In terms of thousand grain weights, the seeds of the quinoa plant are the heaviest seeds with 3.3600 g; the lightest seeds were determined to belong to the tambourine seeds with 0.0028 g.


Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2012
Author(s):  
Samantha Jo Grimes ◽  
Filippo Capezzone ◽  
Peteh Mehdi Nkebiwe ◽  
Simone Graeff-Hönninger

Rising consumer attraction towards superfoods and the steadily increasing demand for healthy, environmentally sustainable, and regionally produced food products has sharpened the demand for chia. Over the course of 4 years, two early flowering chia varieties belonging to Salvia hispanica L., and Salvia columbariae Benth. Species were identified to complete their phenological development and, therefore, able to reach maturity under a photoperiod >12 h, thus enabling the cultivation of chia in central Europe—more specifically, in southwestern Germany—consistently for the first time. Results obtained by the conducted field trial in 2018 showed that chia seed yields and thousand-seed mass ranged from 284.13 to 643.99 kg ha−1 and 0.92 to 1.36 g, respectively. Further, the statistical analyses showed that the protein content of the cultivated chia varieties ranged from 22.14 to 27.78%, the mucilage content varied from 10.35 to 20.66%, and the crude oil content amounted up to 28.00 and 31.73%. Fatty acid profiles were similar to previously reported data with α-Linolenic acid being the most prominent one, ranging from 60.40 to 65.87%, and we obtained ω6:ω3 ratios between 0.2 and 0.3. In conclusion, chia could represent a promising raw material from a nutritional point of view, while being able to diversify the local food basis of southwestern Germany.


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