Gum substances are complex mixtures of polysaccharides. The main components of them - glyukazan and pentosans during acid hydrolysis, yielding xylose and arabinose. Despite the different solubility of hemicellulose and barley gum substances, they apparently did not significantly differ Mezhuyev a chemical structure of polysaccharides within them.
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Number of gum substances in barley depends on the variety, weather and growing conditions. Pectin is a polysaccharide consisting of galactose, arabinose, galacturonic acid, etc. These substances play an important role in the structure of plant tissues. They seem to be glued to each other cells, forming intercellular plates are also included in the composition of cell membranes. Pectic substances rich in certain tissues and organs of plants such as leaves, pulp and peel of fruits and vegetables.
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In the presence of pectin sugar acid gels form a gelatinous, which makes their use in the confectionery industry. Fruits and vegetables contain protopectin (water insoluble form, and pectin (soluble form), which forms colloidal solutions). As the ripening protopectin goes into pectin. In barley pectin is in the form of insoluble protopectin, which is part of the cell walls being the cementing material in the form of soluble pectin. Proteins To supply the micro-organisms, agents of fermentation, requires not only carbohydrates, but also the products of hydrolysis of proteins - amino acids. The composition of proteins. Proteins - the substances in the composition of which besides carbon, hydrogen and oxygen are also nitrogen and almost always gray, some proteins also contain phosphorous.
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Protein called high molecular weight polymers of amino acids needed on the life of plants, animals and microorganisms. Proteins play an important role in the construction of a living cell. Part of the protein has enzymatic properties involved in the metabolism of nucleic acids and in addition is the foundation of all life on Earth. We can say that the nucleic acids - administrators cells, proteins - its workers, without them, can not happen, no reaction.