37 results about "Dextran product" patented technology

β-(1-6)-Glucanase treatment of glucan from yeast cells, pure or feed grade especially yeast from the family Saccharomyces and particularly Saccharomyces cerevisiae, provides a novel glucan product suitable for use in enhancing the stimulation of host animal immune systems. Solubilization of such yeast cell glucan is further disclosed to extend the usefulness of yeast cell glucan as an adjuvant.

The invention discloses soluble micromolecular beta-1,3-glucan for improving the immunity of a hepatitis patient. The purity of the obtained target product the soluble micromolecular beta-1,3-glucan is above 95% through treatment of a series of physical methods. The target product the soluble micromolecular beta-1,3-glucan is completely water soluble, the physiological activity, especially the biology immune activity, anti-inflammatory activity and the antitumor activity have a very significant effect, and especially the soluble micromolecular beta-1,3-glucan is used for auxiliary treatment of the hepatitis patient and can improve the immunity of the hepatitis patient.

The invention relates to a method for preparing a carboxymethyl yeast glucan product and a product prepared by the product. The preparation method comprises the following steps: adding 12.5 to 37.5 mol of hydroxide radicals per 1 kg of yeast glucan in the yeast glucan Add alkali according to the ratio of yeast dextran and ethanol, and add ethanol according to the mass ratio of yeast dextran and ethanol at 1:0.5~2.5, and react at 0~30°C; : 0.3~1.0, add chloroacetic acid, and add ethanol according to the mass ratio of yeast dextran and ethanol at 1:0.5~1.5 at the same time, react at 30~80°C, cool; add ethanol to the obtained solution, wash with hydrochloric acid at the same time And, washed, and centrifuged to obtain precipitated carboxymethyl yeast glucan. The carboxymethyl dextran product obtained by the present invention has a degree of substitution of 0.3-1.0, a molecular weight of 100-1000KD, is completely dissolved in water, and has moisturizing, anti-aging and other effects when applied in the field of cosmetics.

The invention discloses a method for extracting a Beta-dextran in highland barley bran and preparing a highland barley dietary fiber, belonging to the field of food processing. The method comprises the following steps of: extracting and centrifuging the highland barley bran taken as raw material at an alkaline condition by zymohydrolysis of secondary cellulose, thus obtaining a deposition A and asupernatant; depositing and centrifuging the supernatant under an acidic condition to remove albumen; adding a high-temperature resistant Alpha-amylase into the supernatant under a neutral condition for zymohydrolysis; centrifuging, depositing in water, depositing and re-dissolving the supernatant by water, centrifuging and taking the supernatant; repeatedly depositing the supernatant by a ammonium sulphate and obtaining the Beta-dextran product; adding a composite enzyme in the deposition A for zymohydrolysis; adding a hydrogen peroxide in the deposition A for decoloring; washing the deposition A repeatedly by water; obtaining a solid by centrifuging; and drying the solid at low temperature to obtain the highland barley dietary fiber. The method can sufficiently utilizes the highland barley bran, obtains two products of Beta-dextran and dietary fiber, effectively improves the economical additional value of the highland barley bran and has important realistic significance and wide application prospect for developing high-tech industries.

A method of increasing immunostimulation in animals by administering to the animal a glucan product comprising a branched β-(1,3) glucan with β-(1,3)-linked side chains being attached by a β-(1,6)-linkage and being essentially free of side chains containing more than four β-(1,6)-bound glucose units.