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A kind of zinc sulfate oligosaccharide and preparation method thereof

A sulfuric acid polysaccharide and sulfuric acid technology, which is applied in the field of food processing, can solve the problems of high content of functional components zinc and sulfuric acid groups, single product function, low zinc utilization rate, etc., and achieve good fluidity and solubility, high content of sulfuric acid groups, The effect of mild conditions

Active Publication Date: 2019-05-03
FUJIAN AGRI & FORESTRY UNIV
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Problems solved by technology

[0005] The object of the present invention is to provide a kind of preparation method for efficiently preparing oligosaccharide zinc for the zinc utilization rate of existing zinc supplement products is low, product function is single, the functional component zinc in the oligosaccharide zinc of its gained and Sulfate content is high

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  • A kind of zinc sulfate oligosaccharide and preparation method thereof
  • A kind of zinc sulfate oligosaccharide and preparation method thereof

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preparation example Construction

[0022] A kind of preparation method of oligosaccharide zinc sulfate, concrete steps are:

[0023] (1) Alkali treatment: use NaOH solution with a mass concentration of 10%~30% at 10°C~40°C and 18~30 times the mass of Eucheuma to soak the dried Eucheuma for 10min~30min, filter out the lye, and soak in clean water Algae, change the water every 0.5h until the pH of the algae is 7~8, drain the water;

[0024] (2) Extraction of sulfated polysaccharides: put the algae treated with alkali into water 30 times its mass, heat at 80°C~98°C for 2h~4h, filter the algae residue with 200-mesh silk cloth while it is hot, and cool the filtrate to 25°C After ~50°C, mix three times the volume of the filtrate with 95% ethanol, and then filter with 400-mesh silk cloth to obtain a sulfated polysaccharide solution;

[0025] (3) Preparation of sulfated polysaccharide powder: Concentrate the sulfated polysaccharide solution to a soluble solid content of 20%~55%, and then dry it with a centrifugal spra...

Embodiment 1

[0033] (1) Alkali treatment: Soak the dried Eucheuma in 10% NaOH solution at 40°C and 18 times the mass of Eucheuma for 30 minutes, filter out the alkali solution, soak the algae in clean water, and change the water every 0.5 hours. Drain the water until the pH of the algae is 7;

[0034] (2) Extraction of sulfated polysaccharides: Put the algae treated with alkali into water 30 times its mass, heat at 98°C for 2 hours, filter out the algae residue with 200-mesh silk cloth while it is hot, cool the filtrate to 25°C, and use the filtrate three The volume fraction of twice the volume is 95% alcohol mixing, then filters with 400 order silk cloths to obtain the sulfated polysaccharide solution;

[0035] (3) Preparation of sulfated polysaccharide powder: Concentrate the sulfated polysaccharide solution to a soluble solid content of 20%, and then dry it with a centrifugal spray dryer at an inlet air temperature of 200°C and an outlet air temperature of 90°C until the water content i...

Embodiment 2

[0043] (1) Alkali treatment: Soak dried Eucheuma 25 times the mass of Eucheuma in 20% NaOH solution at 25°C for 20 minutes, filter out the alkali, soak the algae in clean water, and change the water every 0.5 hours. Drain the water until the pH of the algae is 7.5;

[0044] (2) Extraction of sulfated polysaccharides: Put the algae treated with alkali into water 30 times its mass, heat at 90°C for 3 hours, filter out the algae residue with 200-mesh silk cloth while it is hot, cool the filtrate to 40°C, and use the filtrate three The volume fraction of twice the volume is 95% alcohol mixing, then filters with 400 order silk cloths to obtain the sulfated polysaccharide solution;

[0045] (3) Preparation of sulfated polysaccharide powder: Concentrate the sulfated polysaccharide solution to a soluble solid content of 40%, and then dry it with a centrifugal spray dryer at an inlet air temperature of 160°C and an outlet air temperature of 75°C until the moisture content is below 12wt...

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Abstract

The invention relates to sulfated oligosaccharide zinc and a preparation method thereof. The sulfated oligosaccharide zinc is prepared by taking dried frond of muriculate eucheuma as a raw material through process links of carrying out alkali treatment, extracting sulfated polysaccharide, preparing sulfated polysaccharide powder, preparing sulfated oligosaccharide powder, carrying out zinc impregnation, carrying out three-grade ultrafiltration separation, vacuum concentration, spray drying and the like. The sulfated oligosaccharide zinc prepared by the preparation method provided by the invention has high zinc content and relatively high content of sulfate groups, so that the sulfated oligosaccharide zinc has good physiological activity. The sulfated oligosaccharide zinc and the preparation method thereof have the advantages that the technology is advanced and reasonable, a processing process has strong controllability and expected economic benefits are good.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a preparation method of oligosaccharide zinc sulfate. Background technique [0002] Eucheuma ( Eucheuma muricatum ), Rhodophyceae, Rhodophyceae, belong to tropical and subtropical seaweeds. In my country, it is common in the coastal areas of Hainan Island, Xisha Islands and Taiwan. Sulfated polysaccharide is the main component of Eucheuma, and it is mainly used in the processing of food additive carrageenan, and is widely used in thickeners, gelling agents, suspending agents, emulsifiers and stabilizers. During the processing of carrageenan, the sulfate group in the Eucheuma sulfate polysaccharide was removed as much as possible to improve the gel properties of carrageenan. [0003] Sulfated oligosaccharides have strong polyanionic properties, so they have good anticoagulant activity, anti-tumor, anti-inflammation and other physiological activities. Zinc is one of the essential...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 宋洪波常满倩安凤平黄群王艺伟滕慧
Owner FUJIAN AGRI & FORESTRY UNIV
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