Mulberry leaf, chrysanthemum and Chinese yam compound polysaccharide with heat clearing, yin nourishing and blood sugar lowering functions and preparation method thereof
A compound polysaccharide and mulberry leaf polysaccharide technology, which is applied to medical preparations containing active ingredients, antipyretics, drug combinations, etc., can solve the problem of insignificant hypoglycemic effect, achieve the best function of clearing away heat and nourishing yin, and improve appearance Condition and mental outlook, effect of lowering triglyceride and total cholesterol
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Embodiment 1
[0034] Example 1: Preparation of mulberry leaf polysaccharide
[0035] Take an appropriate amount of mulberry leaves, add 20 times of water, decoct for 2 hours, filter, collect the filtrate, add 20 times of water to the filter residue, decoct for 1 hour, filter, and combine the 2 filtrates; the concentrated solution is centrifuged, the precipitate is discarded, and the supernatant is passed through 80nm pore size The ultrafiltration membrane is separated, and the polysaccharide with a molecular weight of less than 100,000 Daltons is obtained, then concentrated, alcohol precipitation, centrifugation and drying, and pulverized to obtain the mulberry leaf polysaccharide.
Embodiment 2
[0036] Example 2: Preparation of mulberry leaf polysaccharide
[0037] The remaining supernatant after membrane filtration in Example 1 was separated again by an ultrafiltration membrane with a pore size of 500 nm to obtain a polysaccharide with a molecular weight of 100,000 to 600,000 Daltons, followed by concentration, alcohol precipitation, centrifugation and drying, and pulverization to obtain mulberry. Leaf polysaccharides.
Embodiment 3
[0038] Example 3: Preparation of mulberry leaf polysaccharide
[0039] In Example 2, the remaining supernatant after membrane filtration is a polysaccharide with a molecular weight of more than 600,000 Daltons, which is concentrated, alcohol-precipitated, centrifuged and dried to obtain mulberry leaf polysaccharide.
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