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The Research of the Influence of the Flax Seed Processing Conditions on the Macronutrients Ratio in the Target Products by IR-Spectroscopy FTIR

https://doi.org/10.36107/spfp.2019.202

Abstract

The wide scientific and practical interest to the substances of protein and polysaccharide nature is explained by the diversity of their functions in metabolic processes. Flax seeds are one of the promising sources of high-grade protein, polypeptides, and well soluble polysaccharides. These nutrients are the physiologically necessary components of food and have a great nutraceutical potential. The aim of the research was the study of the processing conditions influence of whole flax seeds and shredded flax seeds on the ratio of the main components - polysaccharides, protein, lipids and their spectral manifestation in the target products - polysaccharide extracts and complexes. Polysaccharide extracts were obtained by aqueous extraction, polysaccharide complexes were obtained by subsequent precipitation from the extracts with ethanol. The extraction products were degreased by treatment with hexane. The following was established. In the mucus of the shell of the whole flax seed, regardless of its variety, polypeptides prevail spectrally in the form of a single broad structured band (1680-1540 cm-1). The protein components extracted from the kernel and the shredded seeds are represented by a doublet of the characteristic bands of Amida-I and Amida-II in the area of 1700-1500 cm-1. Degreasing with hexane does not affect the content of protein components. But these process leads to the removing of mainly saturated and monounsaturated fatty acids that are the part of the lipid-polysaccharide complexes. The spectroscopic research showed a variety of protein-polysaccharide interactions in the processing of flax seeds. Using aqueous extraction in the processing flax seeds is of practical importance for the isolation of nutrients (proteins, polypeptides, polysaccharides) with high nutraceutical potential.

About the Authors

I. E. Minevich
The Federal State Budget Research Institution Federal Research Center for Bust Fiber Crops
Russian Federation


L. L. Osipova
The Federal State Budget Research Institution Federal Research Center for Bust Fiber Crops
Russian Federation


A. P. Nechiporenko
ITMO University
Russian Federation


T. B. Tsyganova
Moscow State University of Food Production
Russian Federation


D. A. Gromova
ITMO University
Russian Federation


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Review

For citations:


Minevich I.E., Osipova L.L., Nechiporenko A.P., Tsyganova T.B., Gromova D.A. The Research of the Influence of the Flax Seed Processing Conditions on the Macronutrients Ratio in the Target Products by IR-Spectroscopy FTIR. Storage and Processing of Farm Products. 2019;(4):47-57. (In Russ.) https://doi.org/10.36107/spfp.2019.202

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