Composition of mineral elements and bioactive compounds in tartary buckwheat and wheat sprouts as affected by natural mineral-rich water

Pongrac, Paula; Potisek, Mateja; Fraś, Anna; Likar, M; Budič, Bojan; Myszka, K.; Boros, D.; Nečemer, Marijan; Kelemen, Mitja; Vavpetič, Primož; Pelicon, Primož; Vogel‐Mikuš, Katarina; Regvar, Marjana; Kreft, Ivan

doi:10.1016/j.jcs.2016.02.002

Cited by 39 publications

(34 citation statements)

References 26 publications

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“…Bulk concentrations of Mg and P in dry matter increased during cotyledon development ( Fig. 2) in line with previous results (Pongrac et al 2016a). This increase is due to the conversion of dry matter (storage compounds) to energy used in growth and seedling development, and of root uptake of mineral elements from the solution used for irrigation.…”

Section: Resultssupporting

confidence: 92%

“…2). This is in line with our previous observations of Tartary buckwheat grains and 8-day-old sprouts ( Table 1; Pongrac et al 2016a). Considering that total grain P and P in phytic acid are highly and positively correlat-ed (Raboy 1997), total P can be used as proxy for estimating phytate concentration in plants.…”

Section: Resultssupporting

confidence: 91%

“…is a good source for secondary metabolites and mineral elements (Bonafaccia et al 2003a, b), particularly in people with coeliac disease, as it is a gluten-free pseudocereal. Tartary buckwheat grain and sprouts contain greater concentration of magnesium (Mg) than wheat (Triticum aestivum L.) grain and sprouts (Pongrac et al 2016a), which is strongly linked to the phylogenetic origin of the two species. Tartary buckwheat belongs to the family Polygonaceae within the order Caryophyllales, while wheat belongs to the Poaceae within the Poales.…”

mentioning

confidence: 99%

“…Consequently, soaked grains and seedlings (sprouts) are believed to be nutritionally advantageous (Holtz andGibson 2007, Nelson et al 2013). In addition, sprouting was shown to result in increased concentrations of mineral elements (Pongrac et al 2016a, Lintschinger et al 1997 although the extent of the increase depended on plant species and the mineral-element composition of the water used for sprout cultivation (Lintschinger et al 1997, Liu et al 2007, Pongrac et al 2016a). The observed increase in mineral element concentration is arguably a result of the conversion of the dry matter and the uptake of mineral elements by developing roots.…”

mentioning

confidence: 99%

“…Dry matter of the grain (mostly non-fibrous storage carbohydrates) is converted to energy for growth of the embryo and seedling. With activation of metabolic processes requirements of mineral element change and this can be observed as a change in the distribution of mineral elements during sprouting, especially for sulphur (S), K, calcium (Ca) and Fe (Pongrac et al 2016a, b). No redistribution of P and Mg was seen in hydrothermally processed grains (groats) of Tartary buckwheat, but a slight redistribution was seen in 8-day-old sprouts when compared to the grain (Pongrac et al 2016b).…”

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confidence: 99%

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Magnesium and phosphorus distributions in developing tartary buckwheat cotyledons / Razporeditev magnezija in fosforja v razvijajočih se kličnih listih tatarske ajde

Pongrac¹,

Kump

Budič

et al. 2017

Folia Biologica Et Geologica

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Magnesium and phosphorus distributions in developing tartary buckwheat cotyledonsTartary buckwheat (Fagopyrum tataricum (L.) Gaertn.) is a gluten-free pseudocereal with good mineral element composition of grain. In particular, Tartary buckwheat grains have greater magnesium (Mg) concentration than cereal grains. In (pseudo)cereal grain, Mg is bound to phytic acid, a phosphorus (P)-rich compound responsible for poor availability of Mg in the diet. The aim of the study was to evaluate changes in cell-type specific distribution of Mg and P in cotyledons of Tartary buckwheat grain and in 5-day-old and 8-day-old sprouts. Low-energy-X-ray-fluorescence mapping revealed considerable co-localisation of Mg and P in globoid-like structures in cotyledons. In the grain these globoid-like structures were numerous and appeared in mesophyll cells of the cotyledons. In 5-day-old sprouts less Mg-P co-localisation was seen in mesophyll cells. In 8-dayold sprouts co-localisation of Mg and P was less confined to globoid-like structures in the mesophyll cells indicating the degradation of these globoids and release of Mg, presumably for different metabolic processes that occur during seedling development. The extent to which Mg release from phytic acid in sprouts correlates with the bioavailability of Mg during digestion remains to be investigated.Keywords: Fagopyrum tataricum, X-ray fluorescence micro-spectroscopy, sprouts, phytic acid, germination iZVleČeK Razporeditev magnezija in fosforja v razvijajočih se kličnih listih tatarske ajde Tatarska ajda (Fagopyrum tataricum (L.) Gaertn.) je nepravo žito, ki ne vsebuje glutena in ima za prehrano ugodno mineralno sestavo. Zrnje tatarske ajde vsebuje na primer več magnezija (Mg) kot zrna pravih žit. V zrnju pravih, kot nepravih žit, je Mg močno vezan na fitinsko kislino, organsko spojino, ki je zgrajena iz velikega števila atomov fosforja (P). Omenjena vezava je odgovorna za slabo topnost Mg in slabo biodostopnost Mg v prehrani. Namen študije je bil ovrednotiti spremembe v razporeditvi Mg in P v razvijajočih se kličnih listih tatarske ajde. Preučevali smo klične liste v zrnu, v pet in osem dni starih kalicah tatarske ajde. S pomočjo nizko-energijske rentgensko fluorescenčne mikrospektroskopije smo na celičnem nivoju v kličnih listih zrn potrdili močno kolokalizacijo Mg in P v globoidnih strukturah. V kličnih listih pet dni starih kalic se je stopnja kolokalizacije zmanjšala in globoidne strukture so bile manj številne. Stopnja kolokalizacije v kličnih listih osem dni starih kalic se je še dodatno zmanjšala, kar je nakazovalo na razgradnjo kompleksov fitinske kisline in Mg, verjetno kot posledica metabolnih potreb kalice po Mg. Potrebne so nadaljnje raziskave, s katerimi bi ovrednotili povezavo med postopnim sproščanjem Mg s fitinske kisline v kalicah in biodostopnostjo Mg v prebavilih.Ključne besede: Fagopyrum tataricum, rentgensko fluorescenčna mikro-spektroskopija, kalice, fitinska kislina, kalitev

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 91%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Magnesium and phosphorus distributions in developing tartary buckwheat cotyledons / Razporeditev magnezija in fosforja v razvijajočih se kličnih listih tatarske ajde

Pongrac¹,

Kump

Budič

et al. 2017

Folia Biologica Et Geologica

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Sprouted Cereal Grains and Products

Marti

Cardone

Pagani

2020

Innovative Processing Technologies for Healthy Grains

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Zinc fortification as a tool for improving sprout hygienic and nutritional quality: a factorial design approach

et al. 2019

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Background Sprouting is known to improve cereal and pulse nutritional properties. However, several outbreaks of illness have been reported after raw sprout consumption. This research aimed to improve wheat sprout hygienic properties through the use of zinc diacetate. Sprouting conditions (sprouting temperature, soaking time and zinc diacetate solution concentration) were optimized to decrease total plate count, coliforms, and molds and yeasts using a factorial design approach and a desirability function. Results Based on the responses, the effects of variables were calculated and the interactions between them were determined. Optimal conditions were defined as follows: sprouting temperature 18 °C, soaking time 0.66 h and zinc diacetate concentration 400 mg L−1. These conditions led to the elimination of coliforms and a decrease in total flora count by 2 log. Interestingly, zinc sprouting increased the zinc content of sprouts and improved their nutritional properties. Conclusion Results showed that the use of zinc solution is a useful tool to improve sprout hygienic and nutritional properties. © 2019 Society of Chemical Industry

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Composition of mineral elements and bioactive compounds in tartary buckwheat and wheat sprouts as affected by natural mineral-rich water

Cited by 39 publications

References 26 publications

Magnesium and phosphorus distributions in developing tartary buckwheat cotyledons / Razporeditev magnezija in fosforja v razvijajočih se kličnih listih tatarske ajde

Magnesium and phosphorus distributions in developing tartary buckwheat cotyledons / Razporeditev magnezija in fosforja v razvijajočih se kličnih listih tatarske ajde

Sprouted Cereal Grains and Products

Zinc fortification as a tool for improving sprout hygienic and nutritional quality: a factorial design approach

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