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Preparation technique of low-temperature instant carrageenan

A carrageenan, instant technology, applied in the field of carrageenan manufacturing, can solve problems such as application troubles, and achieve the effect of good solubility and low dissolution temperature

Active Publication Date: 2012-11-14
青岛德慧海洋生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, carrageenan is insoluble in water below 75°C, which poses a great problem to its industrial application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Carrageenan powder 20g, sucrose 2g, add water 1kg, boil until completely dissolved. Heating is stopped, processed at 140 MPa by an ultra-high pressure homogenizer, spray-dried and granulated to obtain a low-temperature instant modified carrageenan product.

[0023] Product dissolution rate: 5 minutes at 60°C.

Embodiment 2

[0025] Take 400g of carrageenan, 60g of glucose, add 10kg of water, and boil until completely dissolved. Heating is stopped, processed by a high-pressure homogenizer at 50 MPa, filtered by a plate and frame filter press, air-dried or dried, and crushed and sieved to obtain an instant modified carrageenan product.

[0026] Product dissolution rate: 55°C, 6 minutes.

Embodiment 3

[0028] Take 30g of carrageenan and 3g of sucrose, disperse in 2kg of water with stirring, and boil for several minutes until completely dissolved. The completely dissolved carrageenan was treated at 150MPa by an ultra-high pressure homogenizer, and the mixed liquid treated by the ultra-high pressure homogenizer was quickly frozen to -35°C with a single freezer, and then quickly thawed by microwave; the frozen The melted mixed solution is filtered by a plate and frame filter press, and the film obtained by the filter press is extruded with a single-screw extruder under heating (95° C.), crushed and sieved by microwaves, and obtained low-temperature instant modified carrageenan.

[0029] Product dissolution rate: 6-8 minutes at 47°C.

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PUM

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Abstract

The invention discloses a preparation technique of low-temperature instant carrageenan, comprising the following steps: adding co-solvent in seaweed gel liquid or boiling carrageenan and co-solvent in water until the carrageenan and the co-solvent are dissolved completely; processing by a high-pressure apparatus or an ultra-high-pressure apparatus, dehydrating by a plate-and-frame filter press, drying and sterilizing to a proper water content by microwave, crushing and filtering so as to obtain the low-temperature instant product (physically modified carrageenan); or processing by a high-pressure apparatus or an ultra-high-pressure apparatus, and then spray-drying so as to obtain the low-temperature instant product (physically modified carrageenan); or processing by a high-pressure apparatus or an ultra-high-pressure apparatus, freezing at ultra-low temperature by an individual quick freezing machine, unfreezing, filter-pressing, extruding by a screw compressor, drying, and crushing so as to obtain the low-temperature instant product (physically modified carrageenan). The low-temperature instant carrageenan produced by the preparation technique disclosed by the invention has the following characteristics of being quickly dissolved at low temperature.

Description

technical field [0001] The invention relates to a manufacturing technology of carrageenan which is indispensable in food industry, daily chemical industry, bioengineering, pharmacy and scientific research. technical background: [0002] Seaweed gel is a polysaccharide extracted from marine algae plants, which belongs to hydrophilic colloid. The important commercial seaweed gum mainly includes carrageenan, agar, alginate and so on. Seaweed gel has good gelling, thickening and water retention properties, and is an indispensable colloid in the food industry, daily chemical industry, bioengineering, and pharmaceuticals. [0003] Carrageenan, also known as "carrageenan", is a polysaccharide extracted from marine red algae plants Eucheuma, carrageen and other plants, and its main component is polygalactose sulfate. Because of its special gel properties, carrageenan has been widely used in food, medicine, chemical industry, textile, national defense, scientific research and other...

Claims

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Application Information

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IPC IPC(8): C08B37/00
Inventor 杨松涛
Owner 青岛德慧海洋生物科技有限公司
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