Processing method of high-stability lotus seed starch-soybean lecithin compound

Abstract

The invention relates to a processing method of a high-stability lotus seed starch-soybean lecithin compound, and belongs to the field of processing of modified starch. According to the method, lotusseed starch is used as a raw material, lecithin is used as a ligand substance, and through processing steps of vibration type ultramicro crushing, high-pressure micro jet homogenizing and compounding,liquid nitrogen spraying, cooling and crystallization, water washing and centrifuging, freeze drying, crushing and packaging, the lotus seed starch-soybean lecithin compound is prepared. Through theadoption of the method disclosed by the invention, the retrogradation stability of original lotus seed starch can be improved, the compounding indexes and the minicrystal ratio of the lotus seed starch compound can also be increased, high-quality production of lotus seed starach-lecithin compounds is realized, and products have the characteristics of quickly dissolving, being uniform to disperse,being high in safety and the like. The compounding indexes of the obtained lotus seed starch-lecithin compound are 55-70%, the minicrystal ratio is 50-60%, and the stability indexes are 60-75%.

Description

Technical field [0001] The invention belongs to the technical field of modified starch processing, and specifically relates to a processing method of a lotus seed starch-soy lecithin complex. Background technique [0002] Lotus seed is an important and high-quality special product resource in my country. The starch prepared from it has nutritional health function and pharmacological activity, and is a good functional raw material for medicine and food. [0003] Soy lecithin, also known as soybean phospholipid, is a basic substance of life. It is not only an important part of the human body's biofilm, but also as an unsaturated fatty acid. Its molecular structure contains hydrophilic phosphate groups and lipophilic Fatty acid groups have the effects of preventing cardiovascular diseases, enhancing human immunity, and assisting in lowering blood lipids. Other studies have shown that soybean lecithin is also a class of lipid compounds and natural surfactants with important physiologi...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a processing method of high-stability lotus seed starch-soybean lecithin compound. The method uses lotus seed starch as raw material and soybean lecithin as a ligand substance: technology, transforming and degrading the amylose released from the starch granules, making it fully compound with soybean lecithin, and at the same time, using liquid nitrogen spray technology to treat it at ultra-low temperature to form lotus seed starch-lecithin complex suspension Compared with the invention patent "A Processing Method of Low Glycemic Index Lotus Seed Starch-Lipid Complex" (CN105694115A), the disclosed one combines high-pressure homogenization technology and low-temperature cooling crystallization technology to prepare lotus seed starch-monoglyceride compound This method uses low-temperature cooling and crystallization technology to pre-cool the starch solution to assist in the formation of single-helical V-shaped crystallites, but it takes a long time and the starch granules are not completely solidified.

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