Effects of Fusarium infection on the amino acid composition of winter wheat grain

2008 ◽  
Vol 111 (3) ◽  
pp. 750-754 ◽  
Author(s):  
Marco Beyer ◽  
Jens Aumann
1984 ◽  
Vol 103 (1) ◽  
pp. 75-80 ◽  
Author(s):  
A. Iqtidar ◽  
S. F. Rehman

SummaryField experiments were conducted for 2 years in Peshawar, North West Frontier Province of Pakistan, to study the effect of three levels of boron (1, 2 and 3 kg/ha) on the amino acid composition of wheat protein. The soil was clay loam, alluvial in nature, with a pH value of 7·8, and hot-water-soluble boron content of 0·58 mg/kg.Positive linear and negative quadratic effects of boron were observed on the protein and ash contents of wheat grain. Most of the essential amino acids were linearly increased with increasing supply of boron. There was a negative linear relationship of boron with all non-essential amino acids, except histidine and tyrosine.Lysine was the most deficient amino acid in wheat protein. Chemical score based on this amino acid was positively affected by boron. There was also an improvement in the amino acid profile due to boron.


2019 ◽  
Vol 51 (3) ◽  
pp. 20-26
Author(s):  
D.V. Chikishev ◽  
◽  
N.V. Abramov ◽  
N.S. Larina ◽  
S.V. Sherstobitobov ◽  
...  

The paper presents the results of applying nitrogen fertilizers for spring wheat of the Novosibirsk 31 variety. The use of the fertilizers produced additional 1,62 t/ha of grain relative to the control variant. The maximum yield was 5,4 t/ha. The increased doses of the mineral fertilizers resulted in the increased ammonium ion in the grain, the rate reached 0,76 %. The excess of ammonium ion in spring wheat is neutralized by glutamine in the composition; the glutamine content reached 5,4 %. At the same time, the synthesis of arginine was reduced from 5,1 to 1,0 %.


Author(s):  
Maria Zenkova

Introduction. Grain germination can improve the nutritional value and functional properties of grain. The research featured the effect of technological processing on the quality of the finished product as in the case of natural, germinated, and canned wheat grains. A set of experiments was conducted to define the mineral substances and amino acid composition as factors that affect the chemical composition of a product during its production. Study objects and methods. The research featured soft wheat grain, germinated wheat grain, and canned germinated wheat grain. The latter consisted of 55% of pre-treated germinated wheat grain and 45% of filling, which contained 4.5% of sugar and 3.5% of salt. The content of mineral substances was determined by atomic-emission spectrometry with inductively coupled plasma using an atomicemission spectrometer Optima 2100 DV (USA). The amino acid composition was determined using a liquid chromatograph Agilent 1200 (USA). Results and discussion. 100 grams of canned germinated grain contained about 15% of daily manganese, 12% of chromium (III), 8.4% of copper, and 8.3% of zinc. Canned germinated wheat demonstrated a high biological protein value and contained 20.6% of essential amino acids. As for amino acids, canned germinated wheat grains had a high content of proline (958.4 mg/100 g) and glutamic acid (2456.4 mg/100 g). The characteristics of the nutritional value of canned protein from germinated wheat grains included amino acid rate, amino acid feedstock difference coefficient (AAFDC), and potential biological value (PBV). The proteins of canned germinated wheat appeared inferior in their amino acid composition and contained insufficient amounts of lysine and threonine. The coefficient of differences in amino acid scores was 71.9%, while the potential biological value of the protein was 28.1%. Conclusion. Germinated grains have a certain set of minerals and amino acids in their composition. Therefore, they can be used to develop canned foods or dishes for public catering industry. The effect of technological processing on the mineral composition of the finished product resulted in the loss of mineral substances from 45 to 85%. Moreover, germinated wheat should be combined with products that are rich in lysine and threonine.


PLoS ONE ◽  
2017 ◽  
Vol 12 (6) ◽  
pp. e0178494 ◽  
Author(s):  
Panpan Zhang ◽  
Geng Ma ◽  
Chenyang Wang ◽  
Hongfang Lu ◽  
Shasha Li ◽  
...  

Author(s):  
Yu. D. Martsinyshyn ◽  
S. V. Pyda

The article, based on the analysis of scientific works, presents the research findings of the influence of mineral, organic and organo-mineral fertilizer on the biochemical composition of soft wheat grain. It is shown that seed productivity and quality of wheat grain depend on the provision of plants with nutrients during the growth season, resistance to stress factors and biological characteristics of the variety. The yield of winter wheat increases due to super-strong and extra-strong varieties, but the quality of grain, which is negatively correlated with productivity, decreases. Fertilizers are a significant factor in improving the quality of wheat grain, and their use allows to obtain high quality baking flour. Application of different types of organic fertilizers (cattle manure, chicken manure) and green manures (wheat-wheat, oat-pea, mustard) results in an increase in the gluten content from 24.2 to 25.6–27.7 % in grain winter wheat. The application of manure also contributed to the accumulation of proteins in the grain. The quality of wheat grain (nutritional value and baking properties) depends on both the protein content and their amino acid composition. Nitrogen fertilizers have been shown to increase the protein content and the amount of essential amino acids in grain and improve their amino acid composition, but their application, especially in higher doses, reduces the baking properties of wheat flour. The use of nitrogen fertilizers also increases the content of trace elements in wheat grain and improves the nutritional value of this important food. Foliar feeding of plants with chelated micro-fertilizers on the background of complete mineral nutrition (N60P60K60) also improves the quality of grain, while increasing the content of proteins and gluten. Pre-sowing seed treatment and foliar fertilization of plants in the phase of tillering and earing with liquid organo-mineral fertilizer Polidon Bio Zernovyi special purpose for winter wheat, against the background of mineral nutrition (N60P60K60), increased the protein content in grain according to experimental variants and promoted raw gluten growth.


Sign in / Sign up

Export Citation Format

Share Document