A kind of preparation method of low temperature instant agar
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A kind of agar, instant technology, applied in the field of preparation of low temperature instant agar, can solve problems such as high temperature and long time
Active Publication Date: 2021-09-10
FUJIAN TIANYUAN XINGDA BIOTECHNOLOGY CO LTD
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[0003] However, conventional agar generally dissolves completely in 10-15 minutes under high temperature conditions (above 95 °C), and requires high temperature and long time for heating and dissolving, which has become a major defect in its application.
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[0024] A preparation method for low-temperature instant agar, comprising the following steps:
[0025] (1) Mix agar powder and microcrystalline cellulose, and wet grind it through a ball mill to obtain agar fine powder;
[0026] (2) Put the agar fine powder into water, heat it to the solubility above, so that the agar fine powder dissolves, and obtain the agar polymer solution mixed with microcrystalline cellulose;
[0027] (3) Process the agar polymer solution through a high-pressure homogenizer with a pressure of 100MPa to further reduce the fineness;
[0028] (4) After the high-pressure homogenizer is discharged, centrifuge at a temperature not lower than the freezing point of the agar. In this example, centrifuge at 5000 rpm for 10 minutes at 50°C to separate the microcrystalline cellulose and part of the agar. , to obtain agar polymer clear solution;
[0029] (5) Spray-dry the agar polymer clarified solution and store it in ice-cooling at -36°C for 50 hours to obtain lo...
Embodiment 2
[0032] In step (5), the product is stored at -30°C for 50 hours, and other steps are the same as in Example 1.
Embodiment 3
[0034] The product in step (5) is stored at -36°C for 24 hours, and other steps are the same as in Example 1.
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Abstract
The invention relates to low-temperature instant agar, in particular to a preparation method of low-temperature instant agar, which comprises the following steps: 1) mixing agar powder and microcrystalline cellulose, and wet grinding by a ball mill to obtain agar fine powder; 2) putting the agar fine powder in into water, heated to dissolve above the solubility of the agar fine powder, to obtain an agar polymer solution mixed with microcrystalline cellulose 3) processing the agar polymer solution through high-pressure equipment 4) centrifuging the discharge obtained from the high-pressure equipment to obtain Agar polymer clarified solution 5) The agar polymer clarified solution is spray-dried and stored in ice-cooling to obtain low-temperature instant agar. The agar obtained by the invention has good solubility, the dissolution temperature is less than or equal to 60 DEG C, and the dissolution is rapid. Simultaneously, the invention has simple process, high reutilization rate of agar mixture obtained by centrifugation, less waste and strong industrial feasibility.
Description
technical field [0001] The invention relates to low-temperature instant agar, in particular to a preparation method of low-temperature instant agar. Background technique [0002] Agar is a polysaccharide extracted from seaweed, and it is one of the most widely used seaweed gels in the world. It is widely used in food industry, pharmaceutical industry, daily chemical industry, bioengineering and many other aspects. When agar is used in food, it can obviously change the quality of food and improve the grade of food. Agar has coagulation and stability, and can form complexes with some substances, and can be used as a thickener, coagulant, suspending agent, emulsifier, preservative and stabilizer. Used in the manufacture of beverages, jellies, ice cream, pastries, soft candies, canned food, meat products, eight-treasure porridge, white fungus and bird's nest, soups, cold salads, etc. Agar can also be used as a culture medium and ointment base in medical research. [0003] How...
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