COMPUESTOS BIOACTIVOS Y ACTIVIDAD ANTIOXIDANTE DE SEMILLAS DE QUINUA PERUANA (Chenopodium quinoa W.)

Valencia, Zanhy; Cámara, F.; Ccapa, Karina; Catacora, Policarpo; Quispe, Fredy

doi:10.37761/rsqp.v83i1.100

Cited by 17 publications

(19 citation statements)

References 16 publications

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“…They report values between 65.08 mg and 310.36 mg ET 100 g -1 quinoa. Valencia et al (2017), using 24 Peruvian quinoa accessions by the DPPH method achieve values between 121.66 mg and 299.28 mg ET 100 g -1 of quinoa. It would be possible that the antioxidant capacity differs between plant varieties and among the parts of the same plant and the maturation phase of each plant organ (Sawa et al, 1999).…”

Section: Resultsmentioning

confidence: 94%

Optimization of the extraction of antioxidant compounds from quinoa (Chenopodium quinoa Willd.)

2020

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Argentina contains a great biodiversity of natural foods such as quinoa that can be included in the human diet because of their nutritional characteristics and content of bioactive compounds. Among other properties, these bioactive have an antioxidant capacity that protects biomolecules from oxidant damage. Bioactive compounds contribute beneficially to diverse antimicrobial, anti-inflammatory and anti-carcinogenic physiological activities. The objective of this study was to optimize the parameters for the extraction of antioxidant compounds from quinoa: drying temperature of the grain, liquid/solid ratio (L/S), and ethanol concentration in the extraction solvent, based on an experimental design of three variables at three levels. A face-centered central composite design was used. The proposed levels were 40°C, 60°C and 80°C; 20:1, 30:1 and 40:1, and 30%, 50%, and 70% v/v of ethanol. Antioxidant capacity was determined by the capture of the DPPH free radical. The values obtained were from 16.3 mg to 161.5 mg of equivalent trolox (ET) 100 g-1 of quinoa. The maximum antioxidant capacity was obtained for the L/S ratio of 28:1, and the drying temperature of the grain was 58°C and 39% v/v of ethanol in the extraction solvent. The ethanol concentration was the most influential variable in the antioxidant compound extraction.

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Section: Resultsmentioning

confidence: 94%

Optimization of the extraction of antioxidant compounds from quinoa (Chenopodium quinoa Willd.)

2020

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“…Larka) fue el que acumuló un mayor contenido de pigmento en ambas temporadas. Esta mayor acumulación de betaxantina coincidiría con los resultados reportados por Valencia et al (2017) en semillas de quinoa peruana.…”

Section: Discussionunclassified

Variación estacional del contenido de betalaína en betarraga (Beta vulgaris L.) cultivada en condiciones de salinidad en el valle de Lluta, Norte de Chile

Astorga

Luna

Gómez

et al. 2019

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La betarraga (Beta vulgaris L.) es reconocida por su composición de moléculas bioactivas como la betalaína, que hacen que su consumo aporte importantes beneficios para la salud del ser humano. Su síntesis estaría influenciada por factores como la salinidad, uno de los principales estreses que caracterizan al valle costero desértico de Lluta, ubicado en el extremo norte de Chile, y que junto con el exceso de boro limitan la diversificación agrícola a cultivos tolerantes a esa condición ambiental. En este estudio se evaluó el efecto de la salinidad y la temperatura estacional en la síntesis de betalaína (betacianina y betaxantina) en las variedades Detroit (T 0) y Larka (T 1). Se observó que existen diferencias estadísticas significativas en la síntesis de ambas biomoléculas entre las variedades, no así entre las temporadas de cultivo. Los resultados, en cuanto a la síntesis y contenido de betalaína, dan cuenta de la factibilidad de incorporar a Larka como una alternativa productiva para el valle de Lluta, y destinar su producción al consumo fresco o como materia prima para la industria dedicada a la extracción de pigmentos naturales.

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“…is an Andean ancestral crop that belongs to the Amarantaceae family and has great nutritional value and broad agroecological adaptation (Razzaghi et al, 2015), with resistance to biotic and abiotic factors (Hussin et al, 2017). Its seeds are rich in minerals, including phosphorus, calcium, sodium, potassium, iron, zinc, manganese and copper, fiber and vitamins, along with a high antioxidant capacity (Valencia et al, 2017). Therefore, quinoa has been considered in the search for solutions to food shortages worldwide (Bazile et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been carried out to determine the physical characteristics, phenolic components and antioxidant capacity of quinoa seeds because of their high nutritional value and their effect on human health (Valencia et al, 2017;Vilcacundo et al, 2017), and it has also been determined that, in the Chenopodium genus, there is embryonic latency, for which the seed covers are largely responsible, that is greatly affected by the environmental conditions of seed development (Ceccato et al, 2015;Strenske et al, 2017). Recent studies have evaluated the effect of different environments, such as saline conditions, and phytosanitary quality on germination, vigor, and number of normal plants, among other parameters (Al- Barakah and Sohaig, 2019;El-Assiuty et al, 2019), showing that the physical, genetic, physiological and sanitary quality of seeds are a fundamental requirement for maintaining productivity and that quinoa seeds, like other seeds, need specific conditions to germinate and maintain vigor.…”

Section: Introductionmentioning

confidence: 99%

Seed quality of 22 quinoa materials (Chenopodium quinoa Willd.) from the department of Boyacá

2020

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Seed quality of 22 quinoa materials (Chenopodium quinoa Willd.) from the department of Boyacá 1 Chenopodium quinoa Willd. is a pseudocereal with seeds that are a rich source of vitamins and minerals. However, there are few studies on quinoa seed quality, especially for the Colombian germplasm. So, the objective of this research was to determine the quality of 22 quinoa materials from the Department of Boyacá by evaluating the physical (color, shape and diameter) and physiological (tetrazolium test) quality of the seeds. It was found that 36% of the materials had a white grain color, 80% cylindrical shape, 65% smooth edges and diameters smaller than 2mm, desirable characteristics for post-harvest processes. The evaluated physical characteristics presented high variability between the evaluated materials, which is desirable for elite breeding processes. The imbibition rate showed that germination was rapid (at 4 hours, the weight of the seeds doubled), that is, the materials were not dormant. Finally, it was determined that storage conditions, such as temperature and relative humidity, are essential for preventing deterioration in quinoa seeds; these factors can also affect germination and long-term vigor.

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COMPUESTOS BIOACTIVOS Y ACTIVIDAD ANTIOXIDANTE DE SEMILLAS DE QUINUA PERUANA (Chenopodium quinoa W.)

Cited by 17 publications

References 16 publications

Optimization of the extraction of antioxidant compounds from quinoa (Chenopodium quinoa Willd.)

Optimization of the extraction of antioxidant compounds from quinoa (Chenopodium quinoa Willd.)

Variación estacional del contenido de betalaína en betarraga (Beta vulgaris L.) cultivada en condiciones de salinidad en el valle de Lluta, Norte de Chile

Seed quality of 22 quinoa materials (Chenopodium quinoa Willd.) from the department of Boyacá

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