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Preparing method of phosphorylated fibrinose

A technology of cellobiose and phosphorylation, which is applied in the preparation of sugar derivatives, chemical instruments and methods, esterified saccharides, etc., can solve the problems of limited effect and impact on product taste, reduce usage, and improve low-temperature protection effect of effect

Inactive Publication Date: 2019-04-19
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cellobiose can be used as a sugar cryoprotectant to ensure the quality of frozen aquatic products, but its effect is relatively limited, significantly lower than that of phosphates; at the same time, cellobiose has a certain sweetness, and excessive addition will affect the taste of the product

Method used

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Experimental program
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Embodiment Construction

[0018] Below in conjunction with specific implementation example, the present invention is described in detail; A kind of preparation method of phosphorylated cellobiose, described preparation method comprises the following steps:

[0019] 1) Preparation of phosphorylation reagent: Mix the mixture of sodium tripolyphosphate and sodium trimetaphosphate according to the mass ratio of 20-30:1, and then prepare an aqueous solution reagent with a mass concentration of 30-40% (w / v);

[0020] 2) Add cellobiose to the phosphorylation reagent of the above preparation number so that the mass concentration after mixing is 20-30% (w / v). After fully dissolving, adjust the pH of the mixing system to 7.5-8.5;

[0021] 3) Put the mixed system in a constant temperature water bath shaker, 90-120 ℃ constant temperature water bath shake (speed) reaction for at least 8 hours, take it out;

[0022] 4) To the mixed system, add 5-8 times the volume of 95% ethanol and place it in the refrigerator at 4...

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Abstract

A preparing method of phosphorylated fibrinose is characterized by including the following steps of firstly, preparing a phosphorylation agent, wherein sodium tripolyphosphate and sodium trimetaphosphate are evenly mixed according to the mass ratio of (10-15):1 to form a mixture, and then a water solution agent with the mass concentration of 15-20 %(w / v) is prepared; secondly, adding fibrinose tothe prepared phosphorylation agent so that the mass concentration of the mixed materials can be 10-15 %(w / v), and adjusting the pH of a mixing system to be 7.5-8.5 after sufficient dissolving. The method has the advantages that the method is simple and reliable, the effect can be improved, and the usage amount of related metal ions and phosphate radicals can be greatly reduced.

Description

Technical field: [0001] The invention relates to a method for preparing phosphorylated cellobiose, which belongs to the technical field of organic matter manufacturing. Background technique [0002] In the production process of frozen shrimp in my country, phosphates are widely used as water-retaining agents and antifreeze agents, but excessive use of phosphates will lead to a decline in product quality on the one hand, and on the other hand, excessive intake of phosphorus will also cause certain damage to the human body. [0003] In order to reduce the negative impact brought by the use of phosphate, research and development of phosphorus-free water retaining agents have been launched at home and abroad. Cellobiose can be used as a sugar cryoprotectant to ensure the quality of frozen aquatic products, but its effect is relatively limited, significantly lower than that of phosphates; at the same time, cellobiose has a certain sweetness, and excessive addition will affect the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H11/04C07H1/04A23B4/20
CPCA23B4/20A23V2002/00C07H1/04C07H11/04A23V2200/10A23V2250/604
Inventor 张宾魏婉莹沈春蕾赵金丽张小利
Owner ZHEJIANG OCEAN UNIV