Genotypic and environmental variation in phytic acid content and its relation to protein content and malt quality in barley

Dai, Fei; Wang, Junmei; Zhang, Saihua; Xu, Zhenzhen; Zhang, Guoping

doi:10.1016/j.foodchem.2007.04.019

Cited by 73 publications

(60 citation statements)

References 22 publications

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“…The determined results correspond to the data of foreign authors who also reported a high variability of PA content caused by growing conditions and weather (Dai et al, 2007). The analysis of variance of our data showed that in the whole set not only years as reported by Dai et al (2007) but also genotypes in case of usable phosphorus content were high significant sources of variability (Tab. 1).…”

Section: Molecular Analyses Of "Lpa" Traitsupporting

confidence: 90%

“…Doposud publikované výsledky hodnocení sladovnických parametrů u vícenásobných zpětných kříženců lpa mutantů s vý-chozí rodičovskou odrůdou Harrington ale ukázaly, že tyto materiá-ly nedosahují vyhovující výše sladařsky významných znaků a mají zejména nedostatečnou diastatickou mohutnost (Bregitzer a Raboy, 2006a). O negativní korelaci mezi obsahem PA a obsahem extraktu referují i další autoři (Dai et al, 2007).…”

Section: Genetic Methodsunclassified

“…The analysis of variance with multiple comparisons was applied (LSD test), mutual relationships among the studied parameters were evaluated with correlation coefficients. After application of molecular markers, the splitting rate was calculated from 2 criterion (Rokickij, 1964 (Dai et al, 2007). Analýza variance našich dat prokázala, že v celém souboru byly vysoce význam-ným zdrojem proměnlivosti nejen ročníky, jak uvádějí Dai et al (2007), ale v případě obsahu využitelného fosforu i genotypy (tab.…”

Section: Molecular Analyses Of "Lpa" Traitunclassified

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Variability in phytic acid content in barley grain.

Vaculová¹,

Balounova²,

Kvasnička³

et al. 2012

Kvasny Prum

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V zrně ječmene se cca 65 % fosforu (P) nachází v podobě fytové kyseliny (PA) a jejích solí -fytátů, které negativně ovlivňují úroveň využitelnosti minerálních látek a dalších nutričně významných živin, podílejí se na minerálních deficiencích u lidí i ve výživě hospodář-ských zvířat a přispívají ke znečištění životního prostředí. Detekce a tvorba nových odrůd se změněným poměrem obou forem P, ve prospěch stravitelného fosfátu (Pi), je jedním ze způsobů řešení. Předložená práce se zabývala hodnocením variability obsahu PA a fosfátu (Pi) v zrně vybraných odrůd jarního a ozimého ječmene, genetických zdrojů a nových vlastních linií ječmene jarního, vytvořených hybridizací s tzv. "lpa" chemomutanty -donory nízkého obsahu PA (M422, M1070, M635 a M955). U jarního ječmene byla variabilita obsahu obou forem P ovlivněna ročníkovými vlivy a pouze při rozšíření hodnoceného souboru o lpa mutanty také genotypem. I přes vysokou ročníkovou proměnlivost zůstával u lpa mutantů přibližně stejný poměr Pi/PA (od 138,4 % u M422 po 772,1 % u M955), zatímco u standardních odrůd činil v průměru pouze 31,3 %. Porovnání ozimého a jarního ječmene prokázalo, že ozimé odrůdy mají silnou tendenci k vyšší kumulaci P v zrnu a ve formě PA (12,42 mg.g -1 vs. 10,94 mg.g -1 ). Rozpracování screeningové metody hodnocení obsahu volného P v zrnu pomocí kolorimetrického testu (KT) umožnilo provádět rozsáhlejší výběr materiálů s rozdílným obsahem PA a Pi. Mezi výsledky získanými aplikací metody KT a klasicky stanoveným obsahem Pi byla vypočtena silná kladná korelace (r = 0,85**, P≤0,01). Naopak využití existujících molekulárních markerů (SCAR marker ABC153) pro detekci kříženců se sníženým obsahem PA v zrnu se ukázalo jako velmi málo účinné. Křížením s lpa mutanty a následujícím výběrem za využití KT byly vytvořeny nové linie ječmene jarního se sní-ženým obsahem PA, zvýšeným podílem Pi a porovnatelným celkovým obsahem P v obilce, které mohou být využity ve šlechtění nebo dalším výzkumu. Zajímavým novým genovým zdrojem pro vývoj potravinářských odrůd ječmene se jeví nová linie KM2881.622.2.07, u které je zvýšený obsah volného P spojen s waxy charakterem škrobu (snížený podíl polysacharidu amylosy). Around 65 % of phosphorus (P) in barley grain is in the form of phytic acid (PA) and phytates (PA salts), both forms negatively affect the usability of mineral substances and other important nutrients, thus participating in mineral deficiencies in human as well as livestock nutrition, and contributing to the pollution of the environment. Detection and creation of new varieties with a changed rate of both P forms in favor of digestible phosphate (Pi) is one of possible solutions. The submitted study dealt with the evaluation of variability in contents of PA and Pi in grains of selected spring and winter barley varieties, genetic resources and new spring barley lines created by hybridization with so-called "lpa" chemo-mutants -donors of low PA content (M422, M1070, M635, and M955). Variability in the content of both P forms in spring barley was affected by year a...

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Section: Molecular Analyses Of "Lpa" Traitsupporting

confidence: 90%

Section: Genetic Methodsunclassified

Section: Molecular Analyses Of "Lpa" Traitunclassified

See 1 more Smart Citation

Variability in phytic acid content in barley grain.

Vaculová¹,

Balounova²,

Kvasnička³

et al. 2012

Kvasny Prum

View full text Add to dashboard Cite

show abstract

“…Inaccuracies could have arisen in the estimation of the phytate content of foods for a number of reasons. First, there is variation in the phytate content of varieties, genotypes and species of foods (40)(41)(42)(43) . For example, the phytate content of Korean foods (23) used in the generation of tables of phytate content of subsidiary food groups may be different from the phytate content of UK foods.…”

Section: Tables Of Phytate Content and Their Limitationsmentioning

confidence: 99%

An estimate of phytate intake and molar ratio of phytate to zinc in the diet of the people in the United Kingdom

Amirabdollahian

Ash

2010

Public Health Nutr.

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Objective: To estimate the phytate intake and molar ratio of phytate to zinc in the diet of the people in the United Kingdom. Design: Tables of the phytate content of foods were developed from twenty-eight published and unpublished studies. They were then applied to the nutrient databank of the National Diet and Nutrition Survey (NDNS). The study is a retrospective analysis of data on daily consumption of foods and drinks from the NDNS of children, adolescents, adults and the elderly based on 4-7 d weighed intakes. Subjects: A total of 6786 British participants aged 1?5 years and above, who participated in the NDNS, 1992-2001. Setting: England, Scotland and Wales. Results: The median daily intakes of phytate for children, adolescents, adults and the elderly population were 496, 615, 809 and 629 mg/d, respectively. Although there were differences in phytate intakes between men and women, and for children, adolescents and elderly populations, after adjusting for differences in energy intake, there was no significant variation. The median phytate-to-zinc molar ratios for children, adolescents, adults and the elderly population were 11?8, 10?4, 9?7 and 8?7, respectively. Overall, the main sources of phytate were cereal and cereal products (e.g. breakfast cereals and breads), vegetables, potatoes and savoury snacks (e.g. chips and crisps), hot drinks and miscellaneous foods (e.g. commercial toddler foods and drinks, chocolate and soups), fruits and nuts. Conclusions: The present study estimated the dietary intake of phytate and the phytate-to-zinc molar ratio of the diet of the UK population, which can be used for estimating the average requirement of zinc. Further research should focus on the completion and validation of the tables of phytate content of UK foods, to assess (and if necessary improve) the accuracy and precision of these findings.

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“…The influence from genotype and environment are widely reported in cereal plants but their effects often varied (Liu et al, 2005;Polycarpe Kayodè et al, 2006;Dai et al, 2007;Mahmood et al, 2010). Other co-occurrence factors such as inherent phytase activity of whole grain rice could also influence the phytic acid level in whole grain rice.…”

Section: Introductionmentioning

confidence: 99%

Genotypic, grain morphological and locality variation in rice phytate content and phytase activity

Lee

Bong

Loh

et al. 2014

Emir. J. Food Agric

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Phytate complexes in whole grain rice are indigestible by human but can be broken down by endogenous phytase enzyme. The inherent phytate content and phytase activity could influence the nutritional quality of whole grain rice. This work aims to determine and identify their variability with genotypes, growing areas and grain morphology. It was found that the whole rice grain was largely high in phytate content (18.20 to 32.36 g/kg) but low in phytase activity (4.77 to 102.65 U/kg), with significant variation among cultivars. Phytate content was marginally different between growing locations but, with no significant difference among their genotypes and grain morphology. This variation could be due to locality factors such as cropping and fertilization practices in the cultivation site. Meanwhile, phytase activity appeared to be determined by genotype, grain width and grain length-to-width ratio. A relatively high phytase activity could be selected from the whole grain rice based on rounded grain and in the genotypic category of L. These types of rice cultivars could reduce the inherent phytate level and improve the nutritional quality of the whole grain rice.

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Genotypic and environmental variation in phytic acid content and its relation to protein content and malt quality in barley

Cited by 73 publications

References 22 publications

Variability in phytic acid content in barley grain.

Variability in phytic acid content in barley grain.

An estimate of phytate intake and molar ratio of phytate to zinc in the diet of the people in the United Kingdom

Genotypic, grain morphological and locality variation in rice phytate content and phytase activity

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