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Double-frequency ultrasonic modification method of arrowhead starch

A technology of sagittarius starch and ultrasound, which is applied in the field of preparing sagittarius modified starch with dual-frequency ultrasound, can solve the problems of few reports and achieve the effects of short time-consuming, simple process and low energy consumption

Inactive Publication Date: 2017-11-10
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using dual-frequency ultrasonic technology to modify starch will obtain modified starch with deeper modification degree such as hydrolysis degree, transparency, freeze-thaw water separation rate, peak viscosity, etc., but there are few reports on this aspect

Method used

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  • Double-frequency ultrasonic modification method of arrowhead starch
  • Double-frequency ultrasonic modification method of arrowhead starch
  • Double-frequency ultrasonic modification method of arrowhead starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 16.68g of Arrowhead Starch with a water content of 10.08%, add 283mL of water, mix well, and prepare Arrowhead Starch Milk with a concentration of 5% (g / mL); put the evenly mixed Arrowhead Starch Milk in a beaker and place it in a dual-frequency ultrasonic device Ultrasonic treatment was carried out in the middle of the ultrasonic treatment, ultrasonic frequency 20+40kHz, ultrasonic power 300w, ultrasonic 10s, intermittent 2s, total ultrasonic time 40min, ultrasonic temperature 30 sound temperature, stir the arrowroot starch milk at the same time during the ultrasonic process; put the processed arrowroot starch milk After a period of time, the upper liquid was poured off, and the remaining starch was dried in a 50-hour drying oven to 7%-10%; the dried arrowroot starch was crushed with a pulverizer to obtain double-frequency ultrasonically modified arrowroot starch.

Embodiment 2

[0021] Weigh 16.68g of Arrowhead Starch with a water content of 10.08%, add 283mL of water, mix well, and prepare Arrowhead Starch Milk with a concentration of 5% (g / mL); put the evenly mixed Arrowhead Starch Milk in a beaker and place it in a dual-frequency ultrasonic device Ultrasonic treatment is carried out in the medium, and the ultrasonic frequency is 20+60kHz. The rest of the conditions were the same as in Example 1, and the arrowroot starch modified by dual-frequency ultrasonic was obtained.

Embodiment 3

[0023] Weigh 16.68g of Arrowhead Starch with a water content of 10.08%, add 283mL of water, mix well, and prepare Arrowhead Starch Milk with a concentration of 5% (g / mL); put the evenly mixed Arrowhead Starch Milk in a beaker and place it in a dual-frequency ultrasonic device Ultrasonic treatment was carried out in the middle, the ultrasonic frequency was 40+60kHz, and other conditions were the same as in Example 1, so as to obtain the arrowroot starch modified by dual-frequency ultrasonic.

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Abstract

The invention discloses a double-frequency ultrasonic modification method of arrowhead starch, and belongs to the technical field of processing of agricultural products. A finished product is prepared from arrowhead starch through preparation, double-frequency ultrasonic modification treatment, drying and crushing. The structure and the physicochemical characteristics of the arrowhead starch undergoing the double-frequency ultrasonic modification treatment are greatly changed, so the application range of the arrowhead starch is greatly enlarged. Compared with traditional starch modification methods, the modification method disclosed in the invention has the advantages of short time, small energy consumption, convenience in operation, safety, no pollution, and easiness in industrial production.

Description

technical field [0001] The invention belongs to the technical field of agricultural product processing, and in particular relates to a method for preparing sagittarius modified starch by using double-frequency ultrasonic waves. Background technique [0002] Arrowhead Arrowhead is an important economic crop for both medicine and food in China. It has a wide planting area and high yield in my country, and is loved by consumers. Sagittarius is a high-starch plant, starch accounts for about 50% of its dry matter content, and its amylose content is more than 30%, which belongs to the starch type with high amylose content. This special structure makes sagittarius starch easy to regenerate, which affects the use quality of sagittarius starch. Therefore, it is of great significance to carry out relevant research on the quality characteristics of sagittarius starch, which will help to improve the structure and physical and chemical properties of sagittarius starch, and expand the ap...

Claims

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Application Information

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IPC IPC(8): C08B30/12C08B30/02C08B30/06A23L29/30
CPCC08B30/12A23L29/30C08B30/02C08B30/06
Inventor 段玉清周莉张海晖陈梦张迪罗孝平蔡梅红任晓锋
Owner JIANGSU UNIV
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