Occurrence and Control of Radix Isatidis

1. Field diagnosis: In the early stage of disease, there are small yellow-green spots on the foliage and uplifted and shiny white spots with abscesses on the back of the leaves. The lesions are about 2-3 mm in diameter. After the abscess breaks, a white powder is scattered, which is the pathogenic sporangia. The pustules are scattered on the back of the leaves, and finally the leaves die.

2. Prevention and control measures: 1 Remove field plant residues and reduce overwintering bacteria source. There are conditions to implement the rotation; 2 timely ditch drainage after rain, reduce the humidity in the field; 3 the initial stage of spraying Bordeaux mixture (1:1:120), spray once every 7 days, continuous spray 2-3 times. Metalaxyl series fungicide has better control effect on white rust. In addition, you can also use 65% toymycin wettable powder 1000 times or 50% polymyxin WP 800-900 times, and cure white spot.

Goji Polysaccharides is a rare plant polysaccharides containing protein, which have side chains of polysaccharide composed by six carbon sugars (rhamnose, arabinose, xylose, mannose, galactose, glucose) and main chains of protein composed by 18 kinds of amino acids. The glycoproteins with biological activity is a high-strength immune enhancer.

Wolfberry products with stable quality are all natural, safe, sanitary and fast absorption.Lycium barbarum polysaccharide extraction and purification is divided into two steps. First, the extraction of Chinese wolfberry crude polysaccharides, the second is purified Lycium barbarum polysaccharide. Crude polysaccharides extraction process is as follows: Weigh dried crushed medlar, petroleum ether: acetone (1: 1) reflux degreasing, the solvent was filtered off, the residue was air-dried 80% ethanol off monosaccharide and oligosaccharides. 
The polysaccharide is extracted by water after dissolving the residues such as oligosaccharides in water at 90-100 DEG C, the extract is concentrated under reduced pressure, the polysaccharides are precipitated by ethanol, the precipitates are washed with anhydrous ethanol and acetone, and the lycium polysaccharides are dried under vacuum. The crude polysaccharide is purified by passing the Lycium barbarum polysaccharide through a column of DEAE cellulose with different concentrations of NaCl as an eluent, concentrating the eluates with different salt concentrations respectively under reduced pressure, desalting them by dialysis, and then lyophilizing them differently Grape Lycium glycoprotein.

Modern medical research suggests that wolfberry polysaccharides can improve human immunity and have functions as anti-cancer, cancer treatment, hematopoiesis, liver protection and hypotensive, free radicals removal , anti-fatigue, anti-radiation, and cell activity improvement; Goji polysaccharides can control cells division& differentiation, and regulate cell growth & aging, which is widely used in the pharmaceutical, health food and other fields.

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Production Specification Sheet

Goji Polysaccharides

Organic Goji Polysaccharides,Goji Beeren Polysaccharide,Polysaccharides Du Goji

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