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Technology for preparing porous starch from pterismultifidapoir

A technology of porous starch and fern fern, applied in the field of starch processing, can solve the problems of strong randomness, uneven degradation, high production cost, etc., and achieve the effect of simple preparation process, large specific surface area and good stability

Inactive Publication Date: 2018-07-03
郑光就
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are mainly the following methods for preparing porous starch: one is physical methods, such as ultrasonic irradiation or spraying process; the other is mechanical methods, such as mechanical impact such as ball milling; the third is biochemical methods, such as alcohol denaturation or acid Hydrolysis, in the above several methods, the production cost of mechanical impact methods such as ultrasonic irradiation and ball milling process is high, and it is not easy to realize industrialization; while the spray method and alcohol denaturation form a solid endpolymer sphere, and the adsorption effect is only Occurs in the rough surface, the adsorption capacity is limited, and the application prospect is not optimistic; the reaction rate of the acid hydrolysis method is slow at the gelatinization temperature, the degradation is uneven, the randomness is strong, and it is not easy to form pores, which limits the application of the acid method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 5g of fern starch, add 100ml of distilled water, heat in a water bath at a temperature of 40°C, and stir continuously with a stirrer to form a uniform starch solution, cool the starch solution to room temperature, add 1mL of sodium lauryl sulfate, and Stir to make it dissolve evenly, heat the system, when the temperature reaches 40°C, add 0.05g of glucoamylase and 0.05g of α-amylase, and stir to fully react, then add 0.05g of succinic acid diepoxy Propanol ester, stirred to make it fully react, then washed with acetone, filtered, washed with water, filtered, and the filtered product was put into vacuum drying to obtain a porous starch.

Embodiment 2

[0033] Take 10g of Pteris fern starch, add 200ml of distilled water, heat in a water bath at a temperature of 50°C, and stir continuously with a stirrer to form a uniform starch solution, cool the starch solution to room temperature, add 2mL of sodium lauryl sulfate, and Stir to make it dissolve evenly, heat the system, when the temperature reaches 50°C, add 0.1g of glucoamylase and 0.1g of α-amylase, and stir to fully react, then add 0.1g of succinic acid diepoxy Propanol ester, stirred to make it fully react, then washed with acetone, filtered, washed with water, filtered, and the filtered product was vacuum-dried to obtain a porous starch.

Embodiment 3

[0035] Take 40g of Pteris fern starch, add 600ml of distilled water, heat in a water bath at a temperature of 60°C, and stir continuously with a stirrer to form a uniform starch solution, cool the starch solution to room temperature, add 8mL of sodium lauryl sulfate, and Stir to make it dissolve evenly, heat the system, when the temperature reaches 60°C, add 0.4g of glucoamylase and 0.4g of α-amylase, and stir to fully react, then add 0.4g of succinic acid diepoxy Propanol ester, stirred to make it fully react, then washed with acetone, filtered, washed with water, filtered, and the filtered product was put into vacuum drying to obtain a porous starch.

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Abstract

The invention discloses a technology for preparing porous starch from pterismultifidapoir. The technology comprises the following steps: fetching fresh pterismultifidapoir, taking the rhizome, cleaning the rhizome with clean water, and putting in a stone bowl; mashing with a wooden rod, adding clean water and keeping stirring; filtering with a cloth bag; standing the filtrate; after precipitation,collecting the precipitate and drying to obtain pterismultifidapoir starch; with the pterismultifidapoir starch as a raw material, adding distilled water and heating and stirring; cooling; adding sodium dodecyl sulfate, and stirring for uniform dissolution; heating to increase the temperature; sequentially adding certain amount of glucamylase and alpha-amylase and diglycidol succinate solution; and after sufficient reaction, cleaning the product, and filtering and drying to obtain porous starch.

Description

technical field [0001] The invention relates to a porous starch, in particular to a process for preparing porous starch by fern starch, which belongs to the field of starch processing. Background technique [0002] Porous starch is a kind of modified starch, also known as microporous starch, which is a porous honeycomb product formed by the action of enzymes with raw amylase activity on raw starch below the gelatinization temperature. The surface of microporous starch is covered with small pores with a diameter of about 1 μm. The small pores go deep from the surface to the center, and the volume of the pores accounts for about 50% of the particle volume. [0003] Compared with natural starch, porous starch has the following characteristics: (1) larger specific pore volume and specific surface area; (2) lower bulk density and particle density; (3) good water absorption and oil absorption capacity; The use of chemical reagents is safe, non-toxic, unlimited in dosage, low in c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/00C08B30/04C12P19/14C12P19/04
CPCC08B31/00C08B30/04C12P19/04C12P19/14
Inventor 郑光就
Owner 郑光就
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