Method for preparing water soluble royal jelly

Abstract

The preparation process of water soluble royal jelly includes the following steps: defreezing royal jelly at room temperature; homogenizing via adding water in 1.5-3 times and stirring; enzymolyzing with proteinase at 40-45deg.c while stirring for 2-4 hr and ultrafiltering membrane or vacuum concentration at normal temperature to the amount of 1-1.5 times of royal jelly material; freeze drying; and vacuum packing. The water soluble royal jelly product has water content not more than 3 wt% and 10-HAD content not less than 4.0 wt%. The preparation process is simple and reliable, and the water soluble royal jelly product has wide dissolving temperature range, high stability, water dissolving retention rate as high as 90 % and other features.

Description

technical field

[0001] The invention relates to a preparation method of water-soluble royal jelly, which belongs to the field of medicine and food preparation. Background technique

[0002] A patent application technology for a transparent royal jelly solution manufacturing method is disclosed in the Chinese Patent Gazette. The patent application number is CN92110352.2. It provides a simple and cheap manufacturing method for a transparent and stable royal jelly solution, wherein the aqueous suspension of royal jelly is prepared. , adding two or more proteases with different sites of action on the substrate simultaneously or sequentially, keeping the temperature above room temperature, and dissolving the insoluble matter by enzyme reaction. However, the patented technology uses compound enzymes to complicate the process, thereby increasing the production cost and having a large difference in flavor from the original royal jelly. Contents of the invention

[0003] The purpo...