Method for extracting longan seed polysaccharide

Through steps such as high-pressure blasting, enzyme treatment, blue light irradiation and microwave treatment, combined with ethanol refrigeration, the problem of polysaccharide structure and activity damage in traditional extraction methods was solved, and longan ribopolysaccharide was efficiently extracted and its structure and activity were maintained.

CN109053915AInactive Publication Date: 2018-12-21GUANGXI XIUMEI ZHUANGXIANG ENERGY ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Application Number
CN201810694082.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2018-06-29
Publication Date
2018-12-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional extraction method of longan core polysaccharide requires high temperature, which causes damage to the polysaccharide structure and activity, and the extraction rate is low, which wastes longan core resources.

Method used

A method that closely combines high-pressure blasting, enzymatic treatment, blue light irradiation, microwave treatment and ethanol refrigeration to improve polysaccharide extraction rate and reduce structural and activity damage, including high-pressure blasting, enzymatic hydrolysis, blue light irradiation, microwave treatment and ethanol refrigeration. Wait for steps.

Benefits of technology

It effectively improves the extraction rate of polysaccharides, reduces the degree of damage to the structure and activity of polysaccharides, and improves the molecular dissolution speed and antioxidant capacity of polysaccharides.

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Abstract

The invention belongs to the technical field of comprehensive utilization of longan seeds and specifically discloses a method for extracting longan seed polysaccharide. The method for extracting longan seed polysaccharide disclosed by the invention comprises the following steps: (1) raw material treatment: selecting high-quality longan, peeling and removing pulp to obtain longan seeds; (2) high-pressure explosion treatment: mixing longan seeds with liquid nitrogen and performing high-pressure explosion treatment to obtain longan seed slurry; (3) enzyme treatment: adding water and pectinase into the longan seed slurry to perform enzymolysis; (4) light treatment: utilizing blue light to perform radiation treatment on the longan seed slurry; (5) microwave treatment: utilizing microwave to treat the longan seed slurry and filtering to obtain an extracting solution; (6) filtering and centrifuging; (7) drying. All the steps of the method for extracting longan seed polysaccharide disclosed bythe invention are tightly combined, so that the polysaccharide extracting rate is effectively improved; furthermore, damage degrees of polysaccharide structures and activity are effectively reduced.
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