Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing porous starch with high oil absorption rate through preprocessing starch

A porous starch and pretreatment technology, which is applied in the field of starch industry, can solve the problems of complex preparation process and affecting the overall structure of starch granules, and achieve the effect of simple pretreatment process, reducing irritation and dry feeling, and obvious effect

Active Publication Date: 2012-07-04
JIANGNAN UNIV
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ultrasonic technology, microwave technology, and various cross-linking treatment technologies have been adopted as auxiliary technologies for preparing porous starch. These methods can improve the adsorption effect of porous starch to a certain extent, but they also make the preparation process complicated and have May affect the overall structure of starch granules

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing porous starch with high oil absorption rate through preprocessing starch
  • Method for preparing porous starch with high oil absorption rate through preprocessing starch
  • Method for preparing porous starch with high oil absorption rate through preprocessing starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 0.2 mol / L Na with a pH value of 5.4 to 15 g of corn starch 2 HPO 4 -0.1mol / L citric acid buffer 50mL, add two drops of toluene (to prevent starch from sticking to the wall), keep warm and stir at 65°C, preheat for 8 minutes, adjust the temperature to 45°C, add 1.0%-1.2% enzyme solution (α -Amylase:glucoamylase=1:3), the reaction system was reacted at pH 5.4 for 16h, the reaction solution was centrifuged at 4000r / min for 15min, and washed 3 times, the supernatant was discarded, and the precipitate was dried at 40°C , crushed and sieved to obtain the corn porous starch product.

Embodiment 2

[0024] Add 0.2mol / L Na with a pH value of 5.4 to 15g cornstarch 2 HPO 4 -0.1mol / L citric acid buffer 50mL, add two drops of toluene (to prevent starch from sticking to the wall), keep warm and stir at 66°C for 5 minutes, adjust the temperature to 45°C, add 1.0%-1.2% enzyme solution (α -Amylase:glucoamylase=1:3), the reaction system was reacted at pH 5.4 for 16h, the reaction solution was centrifuged at 4000r / min for 15min, and washed 3 times, the supernatant was discarded, and the precipitate was dried at 40°C , crushed and sieved to obtain the corn porous starch product.

[0025] Table 1 Effects of porous starch pretreatment temperature and time on yield and oil absorption of porous starch

[0026]

[0027] The gelatinization temperature of the corn starch is 70.5°C.

[0028] "—" in the table indicates that the degree of pretreatment is too large, the starch has begun to gelatinize, and the granules are damaged.

Embodiment 3

[0030] Weigh the corn porous starch whose mass is 1 / 5 of the volume of clove oil, slowly add it into the clove oil, stir and adsorb for 1 hour, filter with suction, and vacuum dry at 40°C for 24 hours to obtain powdered clove oil. The powdered clove oil is added to the tobacco sheet raw material in an amount of 2.0 mg clove oil porous starch powder / g tobacco sheet to make slow-release cigarettes. During the transfer of clove oil during cigarette smoking, the toxicological test and sensory evaluation test were carried out according to the medical science. The results showed that there was no toxicological reaction and it had a slow-release effect.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for preparing porous starch with high oil absorption rate through preprocessing starch, belonging to the field of starch industry. The method comprises the following steps of: with corn starch as a raw material, preprocessing the raw material, namely size mixing, before enzymolysis, carrying out transient heat-moisture treatment at a temperature near a range of being lower than the gelatinization point, and preparing the porous starch with high oil absorption rate by adopting a complex enzyme method. The prepared porous starch has larger porosity and specific surface area, lower stacking density and favorable oil absorbability and water absorbability; the porous starch can keep remarkable structural integrity in water and other solvents; and the oil absorbability of the porous starch reaches 133.0 percent, and compared with the porous starch prepared without preprocessing, the porous starch prepared by adopting the method disclosed by the invention has the oil absorbability which is increased by 8.0 percent. When the porous starch adsorbed with clove oil is added into a tobacco sheet raw material, the prepared cigarette has remarkably-reduced irritation and dry sensation during smoking. When the porous starch adsorbed with coenzyme Q10 is added into an O / W-type facial cream emulsion, nutrient substances are slowly released and can be sufficiently absorbed by skin when the O / W-type facial cream emulsion is used. The method disclosed by the invention is simple and effective, unnecessary to increase equipment and free of byproducts and has wide application prospect.

Description

technical field [0001] The invention relates to a method for preparing porous starch with high oil absorption rate through pretreatment of starch. The invention relates to a wet heat treatment method, which is applied to the preparation of porous starch with high oil absorption rate, and belongs to the field of starch industry. Background technique [0002] Porous starch, as a new type of modified starch, has attracted widespread attention in the industry due to its good adsorption properties. It can protect unstable substances, mask unpleasant smell or bitter taste, and can also be used as an adsorbent and fat substitute for volatile substances. When porous starch is added to some systems, it can increase the viscosity and stability of the system and improve the retention of fat and water capacity. [0003] The main raw materials for preparing porous starch are corn starch, rice starch, tapioca starch and the like. Among them, corn starch has become the main raw material ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C12P19/20C12P19/14A24B15/18A24B3/14A61K8/73A61K8/35A61Q19/00
Inventor 李玥钟芳张超
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com