Extraction method of alfalfa dietary fibers and application of alfalfa dietary fibers

Abstract

The invention discloses an extraction method of alfalfa dietary fibers. The extraction method comprises the following steps: crushing alfalfas and degreasing with ethyl acetate to obtain degreased alfalfas; adding amylase and protease into the degreased alfalfas; after carrying out water-bath vibration enzymolysis, carrying out enzyme deactivation; separating to obtain a sediment layer and liquid supernatant; freeze-drying the sediment layer to obtain insoluble alfalfa dietary fibers; precipitating the liquid supernatant through absolute ethyl alcohol; and freeze-drying in vacuum and precipitating to obtain soluble alfalfa dietary fibers. The invention further discloses application of the alfalfa dietary fibers used as meal replacement powder. The insoluble alfalfa dietary fibers and the soluble alfalfa dietary fibers are mixed with green tea powder, lotus leaf powder, shrimp meat powder, peanut powder, soybean powder, white kidney bean powder, jumble bead powder and mung bean powder to prepare the meal replacement powder which contains rich proteins, dietary fibers, mineral substances and vitamins, and has a good mouth feel; the satiety time can be obviously prolonged; and the dietary fibers produced by using an enzymolysis method have relatively good sensory quality including color and luster, and flavor and the like.

Description

Technical field

[0001] The invention relates to a dietary fiber, in particular to an extraction method and application of alfalfa dietary fiber. Background technique

[0002] Alfalfa is a generic name for plants of the genus Medicago, commonly known as "clover" (clover can also be called other trifolium plants), perennial flowering plants, the most famous of which is Medicagosativa (Medicagosativa) as pasture, which is livestock feed.

[0003] Each 100g of fresh alfalfa contains 118 mg of vitamin C, 713 mg of calcium, 9.7 mg of iron, and 8.5 mg of selenium. Alfalfa can alkalize the body and detoxify the body. It is used as a diuretic, anti-inflammatory and anti-fungal. Lower cholesterol, balance blood sugar and hormones, and promote pituitary gland function. It is helpful for anemia, arthritis, ulcers, bleeding disorders, bone or joint diseases, digestive system and skin.

[0004] Dietary fiber can be divided into two categories: water-soluble fiber (SDF) and water-insoluble fiber...