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Physicochemical attributes and starch functional properties of high β-glucan sorghum inbred line

Physicochemical attributes and starch functional properties of high β-glucan sorghum inbred line Sorghum is a vital cereal crop and staple food for many peoples around the globe having good nutritional and health-promoting bioactive compounds and recently received great attention as gluten-free food. However, sorghum grains contain low β-glucans contents, dietary fibre polysaccharides with great technological and disease prevention properties, and improving the concentration of these compounds in sorghum is very important. Thus, the purpose of this paper is to investigate the physicochemical and starch properties of high β-glucan sorghum inbred line (Tabat-NL) in comparison with two commercial cultivars (Wadakar and Tabat-C).Design/methodology/approachGrain samples of sorghum cultivars: white colour and low tannin cultivar (Tabat-C), red colour and high tannin sorghum, and new inbred line of white sorghum cultivar (Tabat-NL) were carefully cleaned, examined for physical properties (colour, hectolitre and 1,000 kernel weights, and endosperm texture), and ground to flour and assessed for chemical composition (moisture, protein, ash, carbohydrate, sugars, fibre and β-glucan contents). The starch was extracted and investigated for morphological characteristics and functional properties.FindingsThe results showed that Tabat-NL grains contain significantly (p=0.05) higher values of 1,000 kernel weight, hectolitre weight, total carbohydrate, amylopectin, dietary fibre and β-glucan compared to Tabat-C and Wadakar. Tabat-NL starch had greater (p=0.05) gelatinization temperature, viscosity, bulk density, and water and oil holding capacities and lower (p=0.05) acidity compared to Tabat-C and Wadakar.Research limitations/implicationsThe outcomes of this study demonstrated that Tabat-NL grains had an excellent marketing and milling properties, health-promoting and disease-preventing potentials, and technological features for uses in functional and speciality foods.Originality/valueTo the best of our understating, this is the first study on the evaluation of sorghum cultivar with high β-glucan content and could thus provide the bases for further development and application of this important food grains. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png World Journal of Science, Technology and Sustainable Development Emerald Publishing

Physicochemical attributes and starch functional properties of high β-glucan sorghum inbred line

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
2042-5945
DOI
10.1108/wjstsd-03-2018-0017
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Abstract

Sorghum is a vital cereal crop and staple food for many peoples around the globe having good nutritional and health-promoting bioactive compounds and recently received great attention as gluten-free food. However, sorghum grains contain low β-glucans contents, dietary fibre polysaccharides with great technological and disease prevention properties, and improving the concentration of these compounds in sorghum is very important. Thus, the purpose of this paper is to investigate the physicochemical and starch properties of high β-glucan sorghum inbred line (Tabat-NL) in comparison with two commercial cultivars (Wadakar and Tabat-C).Design/methodology/approachGrain samples of sorghum cultivars: white colour and low tannin cultivar (Tabat-C), red colour and high tannin sorghum, and new inbred line of white sorghum cultivar (Tabat-NL) were carefully cleaned, examined for physical properties (colour, hectolitre and 1,000 kernel weights, and endosperm texture), and ground to flour and assessed for chemical composition (moisture, protein, ash, carbohydrate, sugars, fibre and β-glucan contents). The starch was extracted and investigated for morphological characteristics and functional properties.FindingsThe results showed that Tabat-NL grains contain significantly (p=0.05) higher values of 1,000 kernel weight, hectolitre weight, total carbohydrate, amylopectin, dietary fibre and β-glucan compared to Tabat-C and Wadakar. Tabat-NL starch had greater (p=0.05) gelatinization temperature, viscosity, bulk density, and water and oil holding capacities and lower (p=0.05) acidity compared to Tabat-C and Wadakar.Research limitations/implicationsThe outcomes of this study demonstrated that Tabat-NL grains had an excellent marketing and milling properties, health-promoting and disease-preventing potentials, and technological features for uses in functional and speciality foods.Originality/valueTo the best of our understating, this is the first study on the evaluation of sorghum cultivar with high β-glucan content and could thus provide the bases for further development and application of this important food grains.

Journal

World Journal of Science, Technology and Sustainable Development – Emerald Publishing

Published: Oct 11, 2018

Keywords: Heterowaxy sorghum; Sorghum starch; β-glucan; Tabat; Wadakar

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