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Preparing and collecting method for starch particles

A technology of starch granules and starch, applied in the field of preparation of starch chemical derivatives, can solve the problems of unseen preparation and collection of starch granules, etc., and achieve the effects of easy action, improved processing efficiency, and improved efficiency

Active Publication Date: 2016-09-07
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is no public report on the preparation and collection of starch granules by combining ultrafine pulverization, high-speed jet flow, and electrophoresis technology in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 adopts the following steps to realize the present invention:

[0025] (1) Take the starch and process it for 1.5 hours by ultrafine grinding to obtain a starch sample;

[0026] (2) Take a starch sample, prepare a starch solution with a mass concentration of 18% with distilled water, and homogenize the starch solution through a high-pressure homogenizer for 3 times, so that the starch particles are fully dispersed in the aqueous solution;

[0027] (3) Set the processing pressure of the high-speed jet device to 260MPa, and process the starch solution homogenized by the high-pressure homogenizer in step (2) twice with the high-speed jet device to obtain the treated starch solution, and then process the starch solution Centrifuge at 10,000rpm, 20,000rpm, 30,000rpm, 40,000rpm, 50,000rpm, 60,000rpm in an ultracentrifuge for 30 minutes, take the supernatant obtained after each centrifugation, after each centrifugation, the sediment at the bottom of the centrifuge ...

Embodiment 2

[0030] Embodiment 2 adopts the following steps to realize the present invention:

[0031] (1) Take the starch and process it for 1.2 hours by ultrafine grinding to obtain a starch sample;

[0032] (2) Take a starch sample, prepare a starch solution with a mass concentration of 10% with distilled water, and homogenize the starch solution twice with a high-pressure homogenizer to fully disperse the starch particles in the aqueous solution;

[0033] (3) Set the processing pressure of the high-speed jet device to 260MPa, and process the starch solution homogenized by the high-pressure homogenizer in step (2) with the high-speed jet device for 3 times to obtain the treated starch solution, and then the treated starch solution Centrifuge at 10000rpm, 20000rpm, 30000rpm, 40000rpm, 50000rpm, 60000rpm in an ultracentrifuge for 18min, take the supernatant obtained after each centrifugation, after each centrifugation, the sediment at the bottom of the centrifuge returns to the high-speed...

Embodiment 3

[0036] Embodiment 3 adopts the following steps to realize the present invention:

[0037] (1) Take the starch and process it for 1 hour by ultrafine grinding to obtain a starch sample;

[0038] (2) Take a starch sample, prepare a starch solution with a mass concentration of 14% with distilled water, and homogenize the starch solution through a high-pressure homogenizer for 3 times, so that the starch particles are fully dispersed in the aqueous solution;

[0039] (3) Set the processing pressure of the high-speed jet device to 260 MPa, and process the starch solution homogenized by the high-pressure homogenizer in step (2) once with the high-speed jet device to obtain the treated starch solution, and then the treated starch solution Centrifuge at 10000rpm, 20000rpm, 30000rpm, 40000rpm, 50000rpm, 60000rpm in an ultracentrifuge for 15min, take the supernatant obtained after each centrifugation, after each centrifugation, the sediment at the bottom of the centrifuge returns to the...

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Abstract

The invention discloses a preparing and collecting method for starch particles. The preparing and collecting method comprises the steps that starch is subjected to superfine grinding and then prepared into a starch solution with a certain concentration; the starch solution is subjected to homogenization with a high-pressure homogenizing machine and treated with a high-speed fluidizing device and then passes through a super centrifuge, centrifugal separation is carried out at different rotating speeds, and starch particles of different sizes are obtained; finally, the starch solution containing starch particles of different sizes is led into an electrophoresis tank, a cationic surfactant is added, polar plates in different shapes or with specific patterns are arranged, and starch particles assembled in a patterned mode in different sizes are obtained on a collector. According to the preparing method, the starch particles obtained after superfine grinding in combination with high-speed fluidizing are obvious in damage of crystalline structures, active groups are fully exposed, the action between the starch particles and the cationic surfactant is easier, and the collected starch particles with different patterns and different sizes are formed at a time and uniform and can be widely applied in the fields of preparing functional starch films, patterned paper and the like.

Description

technical field [0001] The invention relates to a method for preparing and collecting starch granules, and belongs to the technical field of preparation of starch chemical derivatives. Background technique [0002] Starch is an important carbohydrate produced by green plants through photosynthesis. It is mainly deposited in the seeds, tubers or roots of plants in the form of granules, and is the main source of carbohydrates for humans. Starch resources are abundant, cheap, and renewable. The development and utilization of starch resources have attracted more and more attention from researchers. At present, they are widely used in food, papermaking, textile, chemical, pharmaceutical and other industries. However, due to the large granules of natural starch, compact structure, poor flexibility and difficult processing, the application of starch in some fields is also greatly limited. Therefore, in order to improve the performance of starch and expand its application range, so...

Claims

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Application Information

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IPC IPC(8): C08J3/12C08B30/02
CPCC08B30/02C08J3/12C08J2303/02
Inventor 夏文李积华王飞魏晓奕
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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