Novel kelp processing technology

A processing technology, kelp technology, applied in the field of new kelp processing technology, can solve the problems of difficult to meet the demand of kelp polysaccharides, easy to destroy kelp polysaccharides, waste of raw materials, etc., to avoid mutual inhibition and decomposition, reduce processing and pretreatment time, and reduce invalid The effect of enzymatic hydrolysis

Active Publication Date: 2019-05-21
福建大昌生物科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the annual output of kelp in China accounts for about 85% of the annual output of kelp in the world. The offshore area near the subtropical zone is the main production area of ​​seaweed in my country, and the output of kelp accounts for 20% of the total output of the country. In the mariculture of echinoderms and echinoderms, especially in the feed, good results have been achieved. The polysaccharide content in the dry matter of kelp feed is high. At present, the extraction of kelp polysaccharides is mostly carried out by chemical methods. The chemical method is acid-base However, pure acid-base extraction for a long time is easy to destroy laminar polysaccharides, and the extraction rate is relatively low, generally below 10%, which not only causes a great waste of raw materials, but also is difficult to meet the current requirements for laminar polysaccharides. high demand

Method used

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  • Novel kelp processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) After soaking and washing the kelp, add water 8 times the dry weight of the kelp and soak it naturally for 1 hour, squeeze the juice and pulverize it, collect the slag and the juice together, and obtain the kelp juice;

[0024] (2) Ultrasonic treatment of kelp juice, ultrasonic temperature 35°C, power 60W, time 25min;

[0025] (3) Add hydrochloric acid, citric acid and malic acid to the ultrasonically treated kelp juice to adjust the pH value to 4.0, adjust the temperature to 45°C, add 1% of the dry weight of kelp, and the activity is 3×10 4 U of pectinase, continue to stir for 1h; continue heating to raise the temperature to 55°C, add 1% of the dry weight of kelp, and the activity is 4×10 4 U of cellulase, stirring continuously for 1h; then adding sodium hydroxide to the juice to adjust the pH to 6, keeping the temperature, adding 0.5% of the dry weight of kelp, and the activity is 6 × 10 4 The papain of U is continuously stirred for 1h to obtain enzymatic hydroly...

Embodiment 2

[0031] (1) After soaking and washing the kelp, add water 10 times the dry weight of the kelp and soak it naturally for 1.5 hours, squeeze the juice and pulverize it, collect the slag and juice together to obtain the kelp juice;

[0032] (2) Ultrasonic treatment of kelp juice, ultrasonic temperature 40°C, power 70W, time 30min;

[0033] (3) Add hydrochloric acid, citric acid and malic acid to the ultrasonically treated kelp juice to adjust the pH value to 4.5, adjust the temperature to 47°C, add 1.2% of the dry weight of kelp with an activity of 3×104U pectinase, Continue to stir for 1.5h; continue heating to raise the temperature to 57°C, add kelp dry weight 1.5% cellulase with an activity of 4×104U, and continue to stir for 1.5h; then add sodium hydroxide to the juice to adjust the pH to 6.5 , keep the temperature, add kelp dry weight 0.8% activity of papain with an activity of 6 × 104U, and continue stirring for 1-1.5h to obtain enzymatic hydrolysis juice;

[0034] (4) Perf...

Embodiment 3

[0039] (1) After soaking and washing the kelp, add water 12 times the dry weight of the kelp and soak it naturally for 2 hours, squeeze the juice and pulverize it, collect the slag and the juice together to obtain the kelp juice;

[0040] (2) Ultrasonic treatment of kelp juice, ultrasonic temperature 45°C, power 80W, time 35min;

[0041] (3) Add hydrochloric acid, citric acid and malic acid to the ultrasonically treated kelp juice to adjust the pH value to 5.0, adjust the temperature to 50°C, add 1.5% of the dry weight of kelp with an activity of 3×104U pectinase, Continue stirring for 2 hours; continue heating to raise the temperature to 60°C, add kelp dry weight 2% cellulase with an activity of 4×104U, and continue stirring for 2 hours; then add sodium hydroxide to the juice to adjust the pH to 7, keep temperature, add kelp dry weight 1.2% papain with an activity of 6×104U, and continue stirring for 1.5h to obtain enzymatic hydrolysis juice;

[0042] (4) Perform the second ...

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Abstract

The invention discloses a novel kelp processing technology. According to the technology, by respectively carrying out temperature and pH effective control on a system when pectinase, cellulase and papain are added, each type of enzyme can reach the optimal enzymolysis activity, a kelp structure is effectively broken, and dissolution of kelp polysaccharide is greatly improved; meanwhile, mutual inhibition and decomposition among various enzymes are also avoided, and invalid enzymolysis of the enzymes is reduced; by secondary ultrasonic treatment before and after enzymolysis, collapsing and breaking effects of the kelp cell structure are more obvious, and moreover, by adopting secondary ultrasonic treatment after enzymolysis, a cavitation effect of ultrasonic waves can be better utilized totake effects on the system so as to promote the residual enzymes to be continuously subjected to enzymolysis and enable the kelp structure in the system to be subjected to sufficient enzymolysis to the greatest degree; and by directly juicing kelp, a tedious operation of drying and grinding is avoided, and the kelp needs to be dried at a low temperature and requires a long time, and thus, by adopting the novel kelp processing technology disclosed by the invention, the processing and pretreatment time is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a novel kelp processing technology. Background technique [0002] With the rapid development of my country's aquaculture industry, the kelp industry has entered a stage of sustained, rapid and healthy development. At present, the annual output of kelp in China accounts for about 85% of the annual output of kelp in the world. The offshore area near the subtropical zone is the main production area of ​​seaweed in my country, and the output of kelp accounts for 20% of the total output of the country. In the mariculture of echinoderms and echinoderms, especially in the feed, good results have been achieved. The polysaccharide content in the dry matter of kelp feed is high. At present, the extraction of kelp polysaccharides is mostly carried out by chemical methods. The chemical method is acid-base However, pure acid-base extraction for a long time is easy to destroy laminar po...

Claims

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Application Information

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IPC IPC(8): C08B37/00
Inventor 吴云通黄贞胜欧婧
Owner 福建大昌生物科技实业有限公司
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