1-deoxynojirimycin enriched mulberry leaf preparation method and obtained ultra-fine powder

Abstract

The present invention relates to a 1-deoxynojirimycin enriched mulberry leaf preparation method and an obtained ultra-fine powder, which belongs to the processing field of medicinal and edible food. Fresh and complete tender mulberry leaves are washed, air-dried and cut into slice shapes with a length and width of 3-6 cm*3-6 cm, the mulberry leaf broken slices are soaked in a glucose solution at a temperature of 30-60 DEG C and a concentration of 10-30 g / L for 3-5 hours, the taken mulberry broken slices are dried to a water content to below 5%, the dried mulberry broken slices are crushed into an average particle size of 8 [mu]m or less, and the crushed mulberry leaves are dried to a water content to below 5%, thereby obtaining the 1-deoxynojirimycin enriched mulberry leaf ultra-fine powder. During the fresh mulberry leaf soaking process, endogenous DNJ synthesis related enzymes are activated and the glucose is catalyzed to enrich DNJ. The highest content of the finished product of the DNJ is 250mg / 100g. The obtained product by the method is clear in health-care function and safe and reliable in consumption.

Description

technical field

[0001] The present invention relates to a method for manufacturing mulberry leaf powder rich in DNJ and its products, and the specific content relates to a method for preparing mulberry leaf powder rich in DNJ by using enzyme biotechnology in the process of soaking fresh mulberry leaves at a certain temperature , belonging to the field of food biotechnology. technical background

[0002] Mulberry leaf is a food resource with rich raw material resources and health functions. It is not only rich in amino acids, unsaturated fatty acids, dietary fiber, vitamins and mineral elements such as iron, calcium, and zinc, but also rich in functional ingredients DNJ( 1-deoxynojirimycin). As a representative substance of polyhydroxyalkaloids in mulberry leaves, DNJ is the main active ingredient for lowering blood sugar. It can be used in the production of health food or medicine. It is natural, safe and reliable. At present, DNJ and its derivatives have been used as medi...

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