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Method for preparing edible film by cooperating Pleurotus eryngii polysaccharides with chitosan

A technology of Pleurotus eryngii polysaccharide and chitosan, which is applied in the directions of polysaccharide/gum-containing food ingredients, food forming, and food ingredient functions, can solve the problems of high energy consumption, long extraction time, and low extraction rate, and achieve Good compatibility, shorten the extraction time and improve the yield

Inactive Publication Date: 2018-12-14
HEFEI FUQUAN MODERN AGRI SCI & TECH
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Problems solved by technology

However, the current extraction methods of Pleurotus eryngii polysaccharides have problems such as long extraction time, high energy consumption and low extraction rate. Therefore, it is of great significance to develop a time-saving, energy-saving and efficient extraction method of Pleurotus eryngii polysaccharides

Method used

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Embodiment Construction

[0016] A method for preparing an edible film with pleurotus eryngii polysaccharide and chitosan, comprising the following specific steps:

[0017] (1) Clean and slice the Pleurotus eryngii mushrooms, dry them in an oven at a temperature below 50°C to a constant weight, break them into pieces, put them into a high-speed universal grinder and grind them for 2 minutes, and pass through a 100-mesh sieve to obtain dry powder of Pleurotus eryngii stand-by;

[0018] (2) Put an appropriate amount of dry powder of Pleurotus eryngii into a container, add 3 times the amount of 40% ethanol solution, analyze at room temperature for 30 minutes, put the container into an ultrasonic circulation extractor, and then follow a certain liquid-to-material ratio of 20ml / g Quickly add hot water at 90°C that is 20 times the mass of dried mushroom powder, extract for 8 minutes under 400W ultrasonic power, then vacuum filter, add 3 times the volume of 95% ethanol for precipitation, and then pass throug...

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Abstract

The invention discloses a method for preparing an edible film by cooperating Pleurotus eryngii polysaccharides with chitosan. An ultrasonic wave cooperated boiling technology is adopted to extract thePleurotus eryngii polysaccharides, the ultrasonic treatment generates a cavitation effect and accelerates the heat transfer speed, ethanol in Pleurotus eryngii is heated to boiling before being diffused, and convection generated by the boiling enhances the diffusion of the polysaccharides and other effective components, so the extraction process is enhanced; the chitosan is used as a main film forming material, the extracted bioactive components Pleurotus eryngii polysaccharides are added, glycerol is used as a plasticizer, and a tape casting technology is adopted to prepare the novel ediblecomposite film. The addition of control component and the addition of the Pleurotus eryngii polysaccharides make the edible film have biological health effects, the Pleurotus eryngii polysaccharides have a good compatibility with all components of the composite film, and can improve the physical performances of the composite film to a certain degree; and the Pleurotus eryngii polysaccharide functional product is further developed in the invention, so the Pleurotus eryngii polysaccharides have market values.

Description

technical field [0001] The invention relates to the technical field of edible fungi, in particular to a method for preparing an edible film by cooperating with pleurotus eryngii polysaccharide and chitosan. Background technique [0002] Pleurotus eryngii is a kind of edible fungus favored by the market. It has developed rapidly in recent years and has become the second largest factory-cultivated variety in my country. With the rapid growth of the output of Pleurotus eryngii, the contradiction between supply and demand has become increasingly prominent, so its intensive processing is imperative. Polysaccharide is the main active ingredient of Pleurotus eryngii, which has various physiological functions such as anti-tumor, immune regulation, liver protection, anti-oxidation, lowering blood fat, lowering blood sugar, anti-inflammation, and promoting the growth of intestinal probiotics. However, the current extraction methods of Pleurotus eryngii polysaccharides have problems s...

Claims

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Application Information

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IPC IPC(8): A23L33/125A23P10/00C08B37/00A23P30/00
CPCA23V2002/00A23L33/125A23P10/00A23P30/00C08B37/00A23V2200/30A23V2250/50A23V2250/511A23V2300/48A23V2300/14
Inventor 柯家厚袁永强吴道贵梁英波刘红张军
Owner HEFEI FUQUAN MODERN AGRI SCI & TECH
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