Abstract
The newly developed barley-flaxseed composites were unique because barley provides the soluble fiber β-glucan that is beneficial for improving food texture and preventing coronary heart disease along with the health benefits of omega-3 polyunsaturated fatty acids (w-3 PUFAs) of flaxseed. The new composites of barley with flaxseeds were prepared using prowashonupana, a barley variety containing high β-glucan content, with 10, 20, and 50% flaxseed for enhancing health benefits of functional food. Besides the nutritional aspects of barley-flaxseed composites, they have improved water holding capacities, texture, and useful pasting and viscoelastic qualities measured using a Rapid Visco Analyzer (RVA) followed by an advanced rheometer. The pasting and rheological properties of the barley flour were not greatly influenced by 10% ground flaxseed replacements but showed differences at the 50% replacement level. Shear thinning properties were observed for all the composites. These functional composites could be valuable and applicable for developing new functional food products with health benefits of decreasing heart problems, diabetes, and obesity along with providing desirable texture.
Highlights
Prowashonupana barley (Hordeum vulgare) was used for blending with flaxseed since it has been an important grain for centuries [1]
The newly developed barley-flaxseed composites were unique because barley provides the soluble fiber β-glucan that is beneficial for improving food texture and preventing coronary heart disease along with the health benefits of omega-3 polyunsaturated fatty acids ( -3 PUFAs) of flaxseed
Barley grains are generally rich in β-glucan that provides an excellent source of soluble dietary fiber for attenuating blood glucose, and reducing low-density lipoprotein cholesterols (LDL) [6]
Summary
Prowashonupana barley (Hordeum vulgare) was used for blending with flaxseed since it has been an important grain for centuries [1]. Most barley varieties provide vitamins, trace minerals, dietary fiber and bioactive compounds [2,3]. Prowashonupana is a very special waxy type of barley used exclusively for food. It has a shrunken endosperm with very thick cell walls and higher β-glucan content than any of the other barley varieties [4,5]. Barley grains are generally rich in β-glucan that provides an excellent source of soluble dietary fiber for attenuating blood glucose, and reducing low-density lipoprotein cholesterols (LDL) [6]. Barley is gaining renewed interest as an ingredient for production of functional foods due to its high contents of bioactive compounds such as glucans, tocopherols and tocotrienols [14]. There are many classes of phenolic compounds in barley, such as benzoic and cinnamic acid derivatives, proanthocyanidins, quinones, flavonols, chalcones, flavones, flavanones and amino phenolic compounds [3,15,16,17]
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