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A method for extracting protease with hydrolytic activity from Moringa oleifera seeds

A technology of hydrolytic activity and protease, applied in the field of natural protease extraction, can solve the problem of no protease, etc., and achieve the effect of high hydrolytic enzyme activity, good proteolytic activity and strong enzyme activity

Active Publication Date: 2020-05-22
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many reports on the edible or medicinal value of Moringa and its accessories, but there are few reports on protease and its biological activity, and there is no method for how to extract protease with high content and high hydrolytic activity.

Method used

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  • A method for extracting protease with hydrolytic activity from Moringa oleifera seeds
  • A method for extracting protease with hydrolytic activity from Moringa oleifera seeds
  • A method for extracting protease with hydrolytic activity from Moringa oleifera seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Germination of 100g Dried Moringa Seeds and Isolation of Specific Protease

[0074] 1) Soak dried Moringa seeds in warm water: Spray 100g of dried Moringa seeds with cold water to moisten them, and then soak them in warm water at 25°C for 24 hours. The soaking process should be covered with a filter to ensure that Moringa seeds are completely immersed in warm water;

[0075] 2) Germination of Moringa seeds: Put the soaked Moringa seeds into a seedling tray covered with 3 layers of water-moistened filter paper, with an interval of 1 cm between each two Moringa seeds, then put the seedling trays into an artificial climate box, and germinate The temperature in the box is controlled at 25°C and the humidity is controlled at 70% during the period of 1 to 3 days, and the temperature in the box is controlled at 22°C and the humidity is controlled at 60% during the period of 4 to 6 days of germination;

[0076]3) Proteomic analysis of dry Moringa seeds and germinated Moringa se...

Embodiment 2

[0089] Germination of 500g Dried Moringa Seeds and Isolation of Specific Protease

[0090] Implementation process is basically the same as embodiment 1, only the following points are different:

[0091] 1) Soak dried Moringa seeds in warm water: Spray 500g of dried Moringa seeds with cold water to moisten them, then soak them in warm water at 22°C for 24 hours;

[0092] 2) Germination of Moringa seeds: Put the soaked Moringa seeds into a seedling tray covered with 3 layers of water-wetted filter paper, with an interval of 1.2cm between each two Moringa seeds, then put the seedling trays into an artificial climate box, The temperature in the box is controlled at 28°C and the humidity is controlled at 72% during the 1-3 days of germination, and the temperature in the box is controlled at 23°C and the humidity is controlled at 63% during the 4-6 days of germination;

[0093] 3) Proteomic analysis of dry Moringa seeds and germinated Moringa seeds: Germinated Moringa seeds on the ...

Embodiment 3

[0105] Germination of 1000g Dried Moringa Seeds and Isolation of Specific Protease

[0106] Implementation process is basically the same as embodiment 1, only the following points are different:

[0107] 1) Soak dried Moringa seeds in warm water: Spray 1000g of dried Moringa seeds with cold water to moisten them, and then soak them in warm water at 20°C for 24 hours;

[0108] 2) Germination of Moringa seeds: Put the soaked Moringa seeds into a seedling tray covered with 3 layers of water-wetted filter paper, with an interval of 1.5cm between each two Moringa seeds, then put the seedling trays into an artificial climate box, The temperature in the box is controlled at 30°C and the humidity is controlled at 75% during the period of 1 to 3 days of germination, and the temperature in the box is controlled at 23°C and the humidity is controlled at 65% during the period of 4 to 6 days of germination;

[0109] 3) Proteomic analysis of dry Moringa seeds and germinated Moringa seeds: ...

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Abstract

The invention provides a method for extracting proteases with hydrolytic activity from moringa seeds, and belongs to the technical field of extraction of natural proteases. Protease types and contentof the moringa seeds are increased with a germination technology, then analysis is made according to proteomics of the moringa seeds, and information of the proteases with up-regulated expression andhydrolytic activity is obtained and used for guiding follow-up extraction. Through the adoption of the extraction method, not only can various proteases with hydrolytic activity be extracted, but alsothe extracted proteases have high content and high activity. Compared with content of the eight proteases extracted from dry moringa seeds, content of the proteases extracted from germinated moringaseeds is correspondingly increased by 10%-21%, compared with hydrolytic activity of the proteases extracted from the dry moringa seeds, corresponding hydrolytic activity of two proteases is increasedby 8.0%-9.9%, with the adoption of the method, the problems of blindness, tediousness and high workload of the traditional protein separation method are solved, and the method has the characteristicsof being simple to operate and good in repeatability.

Description

technical field [0001] The invention belongs to the technical field of natural protease extraction, and in particular relates to a method for extracting protease with hydrolytic activity from Moringa oleifera seeds. Background technique [0002] With the application of enzyme engineering in the food industry more and more widely, the demand for protease resources is also increasing. Although proteases can be obtained by means of genetic engineering, artificial synthesis or microbial fermentation, there is still a large demand for natural animal and plant protease resources, especially some proteases with hydrolytic activity are in serious shortage. [0003] Moringa tree is a perennial tropical and subtropical deciduous tree, belonging to the genus Moringa of the Moringa family Moringa. The Latin scientific name is Moringa oleifera Lam., and the English name is Moringa. , triangular), known as the Drumstick tree (Drumstick tree), because its root has a spicy taste, it is cal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N9/50
CPCC12N9/63
Inventor 王雪峰黄艾祥陈越施亚楠
Owner YUNNAN AGRICULTURAL UNIVERSITY