Resveratrol grape concentrated essence and preparation method thereof
A technology of resveratrol and resveratrol glycosides, which is applied in the field of nutritional resveratrol grape concentrated essence and its preparation, and can solve the problems of low resveratrol solubility and difficult extraction
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[0021] Production process: Grape → selection → cleaning → draining → crushing → blending → alcoholic fermentation of grape juice mixture → promotion of resveratrol glycosides → freezing concentration → filtration → vacuum distillation → ultrafiltration sterilization → aseptic filling →Sealing→storage.
[0022] 1. Fruit selection: remove grapes and impurities that are rotten, moldy, spoiled, and tasteless;
[0023] 2. Cleaning and draining: Immerse the grapes in 3 to 4 times the amount of clean water, stir gently, keep for more than 3 minutes, drain the dirty water, rinse with clean water 2 or 3 times, remove the grapes and drain to control dryness;
[0024] 3. Crushing: Adjust the gap between the rollers of the crusher to 5-8mm, and use the crusher to crush the grapes 1-2 times, so that the grape juice can fully escape, and the grape stems, skins, seeds and pulp are in a state of separation. Obtain grape juice mixture (containing fruit stem, skin and seed);
[0025] 4, allot...
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