Effects of photoperiod on phasic development, leaf appearance and seed growth in two cultivars of quinoa (Chenopodium quinoa Willd.), and of photoperiod x temperature interactions on seed growth in one cultivar, were examined. The cultivars were…
1995-1999
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Quinoa seed, previously desaponified, was assayed for activities of amylase, cellulase, polygalacturonase, invertase, phenolase, alkaline and acid phosphatases, catalase, peroxidase, superoxide dismutase, protease and lipoxygenase.…
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Keywords: Chenopodium; quinoa; seed storage protein; 2S protein; cysteine\nKeywords: Chenopodium; quinoa; seed storage protein; 2S protein; cysteine
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From the seeds of Amaranthus cruentus and Chenopodium quinoa the starch was gained by the means of mechanical cleaning methods and their starch content was found out by four different methods: by subtractiv determination; polarimetrically with the…
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Five quinoa lines, from different maturity groups, were investigated for their adaptability to European conditions. Results from experiments conducted over three growing seasons indicate that seed types originating from Chile are adapted for growth…
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The three areas of food reserves in quinoa seeds are: a large central perisperm, a peripheral embryo and a one to two-cell layered endosperm surrounding the hypocotyl-radicle axis of the embryo. Cytochemical and ultrastructural analysis revealed…
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Developmental patterns were studied in five groups of quinoa lines from different maturity classes in three years, and measured on five occasions between bud formation and seed set. Knowledge of how the developmental stage develops through the growing…
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A numerical scale for identifying main apex morphological development stages from vegetative to open flower in quinoa (Chenopodium quinoa Willd.) has been developed, using SEM photographs and stereomicroscope observations. The scale accounts for the…
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A Peruvian quinoa core collection, containing 103 chosen ecotypes or landraces, was defined on a geographically stratified non-overlapping sampling procedure. The objective was to determine whether this protocol was correct. Hence, a phenotypic…
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Quinoa (Chenopodium quinoa Willd) is an Andean pseudo-cereal, of the Chenopodiaceae family, which is currently being studied for introduction in Northern Europe as an alternative to industrial crops. The aim of this work was to verify existence in…
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Starch granules were prepared from mature grains of 9 samples of Amaranthus and 4 samples of Chenopodium quinoa. By the ordinary gel permeation chromatograph(GPC) of Pseudomonas isoamylase-debranched starch materials, the amylose content of amaranth…
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The effect of different processing techniques was studied on in vitro iron availability and phytate hydrolysis in high and low saponin content quinoa (Chenopodium quinoa, Willd) seeds. Water slurries of ungerminated and germinated quinoa flour were…
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Two modelling approaches were used to quantify photoperiod and temperature responses of time from emergence to visible flower buds in nine quinoa (Chenopodium quinoa Willd.) cultivars. The first, non-interactive model, considers temperature and…
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Starch isolated from lysine-rich high protein Chenopodium quinoa grains was studied for physicochemical and functional properties. In contrast to corn starch which showed a two-stage swelling, C. quinoa showed a single-stage swelling in the…
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Starches from amaranth (Amaranthus cruentus) and quinoa (Chenopodium quinoa) were isolated and investigated by using enzymatic assay, Rapid Visco Analysis (RVA), Differential Scanning Calorimetry (DSC), Scanning Electron Microscopy (SEM) and X-ray…
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Quinoa (Chenopodium quinoa) is an Andean crop with a high potential for cultivation under temperate agricultural conditions. A new quinoa cultivar for such an environment requires plant characteristics that may be available primarily largely in…
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The performance of quinoa-wheat flour blends (5/95, 10/90, 20/80, 30/70) were evaluated in breads, cakes and cookies. Breads baked with 5% and 10% quinoa flour were of good quality. Loaf volume decreased, crumb grain became more open and the texture…
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Quinoa (Chenopodium quinoa Willd.) is being considered as a potential "new" crop for NASA's Controlled Ecological Life Support System (CELSS). The CELSS concept will utilize plants to remove carbon dioxide from the atmosphere and generate food,…
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Two experiments were conducted to evaluate the effects of inclusion of Danish grown quinoa seed (Chenopodium quinoa Willd.) in feed for broilers containing wheat, rapeseed, peas and soybean meal. The effect of dehulling to remove saponins from…
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The Bolivian altiplano is a vast plateau that lies at an average altitude of 4000 m. It is one of the main agricultural regions of Bolivia. Intense drought and frequent frost have forced peasants to select crops that are resistant to water deficit…
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The chemical composition, nutritionally valuable minerals and functional properties of benniseed (Sesamum radiatum), pearl millet (Pennisetum typhoides) and quinoa (Chenopodium quinoa) were studied. The results showed that the samples contained…
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Starches from newer food sources such as Amaranthus paniculatas and Chenopodium quinoa were studied for their possible role as biodegradable fillers in low density polyethylene (LDPE) films. Such starches have a unique feature of having an extremely…
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The practice of sprouting is widely used to improve the nutritional value of grain seeds. Several nutritive factors such as vitamin concentrations and bioavailability of trace elements and minerals increase during germination. The objective of this…
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The production of coat protein is necessary for cell-to-cell transport of potexviruses in plants. To investigate the role of coat protein in the movement process, the intracellular distribution of coat protein in tissues infected with either of two…
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A two-years field experiment was conducted to investigate the agronomical value of the cereals miler and canary grass and of the pseudocereals buckwheat, quinoa and amaranth under marginal growth conditions. Available vegetation periods, yields of…
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In a two years field experiment the pseudocereals buckwheat, quiona and amarant were compared to oats. All these species, oats included, produce nutritionally interesting grains. Growth, yields and the suitability of grains for breadmaking were…
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An introductory survey summarizes traditional and actual products made of buckwheat, quinoa and amaranth grains. Additionally a table about the range of grain ingredients is briefly discussed. The following investigations were designed, to answer…
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Saponins extracted from the seed of Chenopodium quinoa (quinoa) were studied for their ability to act as mucosal adjuvants upon their intragastric or intranasal administration together with model antigens in mice. Quinoa saponins, co-administered…
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The production of coat protein is necessary for cell-to-cell transport of potexviruses in plants. To investigate the role of coat protein in the movement process, the intracellular distribution of coat protein in tissues infected with either of two…
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Starches from amaranth (Amaranthus cruentus) and quinoa (Chenopodium quinoa) were isolated and investigated by using enzymatic assay, Rapid Visco Analysis (RVA), Differential Scanning Calorimetry (DSC), Scanning Electron Microscopy (SEM) and X-ray…
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Two isolates of pea seed-borne mosaic potyvirus, DPD1 and NY, which both infect pea (Pisum sativum) systemically, differ in their ability to move long distance in Chenopodium quinoa. DPD1 spreads to uninoculated leaves, whereas NY is restricted to…
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The edible seeds of the quinoa plant contain small quantities of alcohol-soluble protein which, after peptic-tryptic digestion, are unable to agglutinate K562(s) cells. When separated by affinity chromatography on sepharose-6B coupled with mannan,…
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Um processo de separação para o tratamento especial de pura força de grão fino de amaranto e quinoa em pequena escala foi desenvolvida com base na força da tecnologia de máquinas e equipamentos convencionais técnica e um processo de extracção aquosa…