V-type starch-cyclodextrin metal organic framework material as well as preparation method and application thereof
By preparing V-shaped starch-cyclodextrin metal organic frame materials, the problems of high cost, complex operation and nutrient loss in existing aquatic products are solved, and the fishy smell in the enzymatic substances of the razor clams are efficiently and selectively removed, and the aromatic substances are retained, and the added value of the product is enhanced.
Patent Information
- Application Number
- CN202510179340.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-05-23
AI Technical Summary
The existing aquatic product de-fishing methods have high cost, complex operation, nutrient loss and poor selective adsorption of fishy smell compounds, and it is difficult to effectively remove the fishy smell and earthy smell in the enzymatic substances of the stray clams.
V-shaped starch-cyclodextrin metal organic frame material is used to prepare V-shaped starch through alcohol-base reaction, and combine it with cyclodextrin and metal ions. Materials with high specific surface area and porosity are prepared by ultrasonic, filtration, steam diffusion and vacuum drying, and are used for de-fishing treatment of razor clam enzymatic solution.
It significantly improves the de-fishing rate of the enzymatic substance of the strangle clam, can selectively adsorb fishy compounds without affecting the aromatic substances, achieve efficient and non-destructive de-fishing, and enhances the market competitiveness of the product.
Smart Images
Figure CN120025560A_ABST
Abstract
Claims
1. A method for preparing a V-type starch-cyclodextrin metal organic framework material, characterized in that: The method comprises: S1, preparing V-type starch by alcohol-base reaction; S2, adding cyclodextrin and metal ions into a methanol-water solution and mixing them evenly, adding the V-type starch, ultrasonically filtering, vapor diffusing, and drying to obtain the V-type starch-cyclodextrin metal organic framework material, wherein the molar ratio of the cyclodextrin to the metal ions is 1:1 to 1:
10.
2. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 1, characterized in that: The S1 step includes: S11, adding starch to an ethanol aqueous solution with a mass fraction of 20 to 40%, and then dropping a NaOH solution, stirring the mixture at 20 to 40° C. for 20 to 30 minutes, and then dropping an ethanol aqueous solution to obtain a dispersion solution 1; S12, centrifuging the dispersed solution at 1500-3000×g, washing the precipitate with an ethanol aqueous solution, neutralizing it with an ethanol hydrochloric acid solution, and washing it with an anhydrous ethanol solution to obtain a product; S13, placing the product in an oven at 60-80° C. for drying for 2-24 hours, and passing through a 100-200 mesh sieve to obtain the V-type starch.
3. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 2, characterized in that: The starch is one or more of corn starch, potato starch and / or tapioca starch.
4. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 1, characterized in that: The S2 step includes: S21, adding the cyclodextrin and the metal ion into a methanol aqueous solution with a volume fraction of 20-50% and mixing them evenly, adding the V-type starch and ultrasonicating for 2-30 minutes to obtain a dispersed solution II; S22, filtering the dispersed solution 2, adding the obtained filtered solution into a container containing a methanol solution, adding methanol after oven steam diffusion, and obtaining a crystalline product; S23, washing the crystalline product with methanol, soaking it in a dichloromethane solution for 1 to 5 days, and vacuum drying it to obtain the V-type starch-cyclodextrin metal organic framework material.
5. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 1, characterized in that: The cyclodextrin is one or more of α-cyclodextrin, β-cyclodextrin and γ-cyclodextrin, and the metal ion is one or more of potassium ion, sodium ion and magnesium ion.
6. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 4, characterized in that: The temperature of the steam diffusion is 10-60° C., and the temperature and time of the vacuum drying are 30-60° C. and 8-48 hours, respectively.
7. The method for preparing the V-type starch-cyclodextrin metal organic framework material according to claim 4, characterized in that: The step S22 uses an organic filter membrane, and preferably the pore diameter of the organic filter membrane is 0.22 to 0.65 μm.
8. A V-type starch-cyclodextrin metal organic framework material prepared according to the preparation method according to any one of claims 1 to 7.
9. Application of V-type starch-cyclodextrin metal organic framework material, characterized in that: The V-starch-cyclodextrin metal organic framework material prepared according to the preparation method according to any one of claims 1 to 7 is used to remove the fishy smell of the enzymatic hydrolysate.
10. The use of the V-type starch-cyclodextrin metal organic framework material according to claim 9, characterized in that: The enzymatic hydrolysate is Sinonovacula constricta enzymatic hydrolysate powder, and the deodorizing step comprises: The Sinonovacula constricta hydrolysate powder and the V-type starch-cyclodextrin metal organic framework material in a mass ratio of 1:1 to 1:2 are placed in a closed container at a temperature of 25 to 65° C., and reacted for 0.5 to 12 hours to obtain the deodorized Sinonovacula constricta hydrolysate powder.