Method for extracting plant extract for preventing and treating diabetes as well as extract product and uses thereof

Abstract

The invention relates to a method for extracting plant extract for preventing and treating diabetes, wherein linseed hulls are subjected to crushing and sieving, extracted by ethanol, subjected to alkaline hydrolysis, neutralization, concentration and spray drying to obtain the extract. The plant extract comprises the following effective constituents for treating or preventing diabetes: flax lignan, ferulic acid, coumaric acid and dietary fiber. The contents of various constituents are as follows respectively: 15 to 45 weight percent of the flax lignan, 1.2 to 6.0 weight percent of the ferulic acid, 1.0 to 4.0 weight percent of the coumaric acid and 40 to 70 weight percent of the dietary fiber. The method for extracting the plant extract for preventing and treating diabetes takes the naturally grown linseed hulls or naturally grown linseed cakes as a raw material of the extract, has simple manufacturing technique, low production cost, low investment and no harmful solvent residue, and is suitable for industrialized production. Simultaneously the variety of the effective constituents of the plant extract is numerous; the content is high; the preparation safety is high; the quality is stable; the plant extract can be orally taken for a long time and has no side effect; and medicines for preventing and treating symptoms such as hyperglycemia and so on caused by diabetes have good hypoglycemic effect and no adverse reaction as proved by clinic trails.

Description

technical field

[0001] The invention relates to a method for extracting natural plant extracts for preventing and treating diabetes, in particular to a plant extract containing linseed lignans and other active components extracted from linseed cake or linseed bark. The present invention also relates to the plant extract product obtained by the extraction method and the application of the product in anti-diabetic drugs or food and health care products. Background technique

[0002] In recent years, people are very concerned about the research on the physiological activity of natural substances. Flax (commonly known as flax) has attracted special attention because it contains a large number of active ingredients that are beneficial to the human body. The linseed bark contains about 2% lignans, the main component of which is secoisolariciresinol diglucoside (SDG). Flax lignans are physiologically active substances, and the SDG naturally present in flaxseeds accounts for more t...

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