Dataset Information

Profile of chlorophylls and carotenoids of wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) microgreens.

ABSTRACT: The use of cereal microgreens is increasing because of increased consumer's interest in healthier products. Chlorophyll (Chl) and Carotenoids (Car) are suggested to correlate with health promoting components like phenolics and antioxidant potential of the plant-part. They also play role against clinical conditions like thalassemia and hemolytic anemia and reduce the risk of some chronic diseases, such as cancer, cardiovascular diseases, skin diseases and age-related eye diseases. This study was carried out for the comprehensive profiling of Chl and Car in wheat (Triticum aestivum L.), and barley (Hordeum vulgare L.) micro-greens between 7 and 16 days on dry basis. Chl and Car content strongly correlated with the number of days of growth. Significantly high correlations existed among Chl a, Chl b, total Chl and total Car with concomitant Chl a/b and Chl/Car ratios. The peaks for the rate of accumulation of pigments were between 7-10 days on wheat and 10-13 days on barley. The maximum content of Chl and Car were 616.63?±?18.45 mg/100 g DM and 54.80?±?1.72 mg/100 g DM on day 16 and statistically not significant to variety of grain. The Chl level was slightly lower than Chl rich vegetables like kale and comparable to spinach and Car level was comparable to carrots, which is higher than most of the daily consumable fruits and vegetables. Further cell-based or in vivo studies of cereal microgreens could be considered to draw more valuable information related to human health.

SUBMITTER: Niroula A

PROVIDER: S-EPMC6525700 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature

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Profile of chlorophylls and carotenoids of wheat (<i>Triticum aestivum</i> L.) and barley (<i>Hordeum vulgare</i> L.) microgreens.

Niroula Anuj A Khatri Sagar S Timilsina Rashika R Khadka Dinesh D Khadka Abhishek A Ojha Pravin P

Journal of food science and technology 20190410 5

The use of cereal microgreens is increasing because of increased consumer's interest in healthier products. Chlorophyll (Chl) and Carotenoids (Car) are suggested to correlate with health promoting components like phenolics and antioxidant potential of the plant-part. They also play role against clinical conditions like thalassemia and hemolytic anemia and reduce the risk of some chronic diseases, such as cancer, cardiovascular diseases, skin diseases and age-related eye diseases. This study was ...[more]

PMID: 31168157

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Project description:BackgroundHigh isoelectric point α-amylase genes (Amy1) play major roles during cereal seed germination, and are associated with unacceptable high residual α-amylase activities in ripe wheat grains. However, in wheat and barley, due to extremely high homology of duplicated copies, and large and complex genome background, the knowledge on this multigene family is limited.ResultsIn the present work, we identified a total of 41 Amy1 genes among 13 investigated grasses. By using genomic resources and experimental validation, the exact copy numbers and chromosomal locations in wheat and barley were determined. Phylogenetic and syntenic analyses revealed tandem gene duplication and chromosomal rearrangement leading to separation of Amy1 into two distinct loci, Amy1θ and Amy1λ. The divergence of Amy1λ from Amy1θ was driven by adaptive selection pressures performed on two amino acids, Arg97 and Asn233 (P > 0.95*). The predicted protein structural alteration caused by substitution of Asp233Asn in the conserved starch binding surface site, and significantly expressional differentiation during seed germination and grain development provided evidence of functional divergence between Amy1θ and Amy1λ genes. We screened out candidate copies (TaAmy1-A1/A2 and TaAmy1-D1) associated with high residual α-amylase activities in ripe grains. Furthermore, we proposed an evolutionary model for expansion dynamics of Amy1 genes.ConclusionsOur study provides comprehensive analyses of the Amy1 multigene family, and defines the fixation of two spatially structural Amy1 loci in wheat and barley. Potential functional divergence between them is reflected by their sequence features and expressional patterns, and driven by gene duplication, chromosome rearrangement and natural selections during gene family evolution. Furthermore, the discrimination of differentially effective copies during seed germination and/or grain development will provide guidance to manipulation of α-amylase activity in wheat and barley breeding for better yield and processing properties.

Dataset Information

Profile of chlorophylls and carotenoids of wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) microgreens.

Publications

Profile of chlorophylls and carotenoids of wheat (<i>Triticum aestivum</i> L.) and barley (<i>Hordeum vulgare</i> L.) microgreens.

Similar Datasets

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