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Production technology of low-temperature instant-dissolving agar

A production technology, agar technology, which is applied in the field of agar manufacturing, can solve problems such as long time and high temperature, and achieve the effect of low dissolution temperature and good solubility

Active Publication Date: 2012-11-07
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

However, conventional agar can only be completely dissolved in 10-15 minutes above 95°C; it needs high temperature and a long time for heating and dissolving, which has become a major defect in its application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take 20g of agar powder, 2g of sucrose, add 1kg of water, boil until completely dissolved. Heating is stopped, processed at 140MPa by an ultra-high pressure homogenizer, spray-dried and granulated to obtain a low-temperature instant modified agar product.

[0024] Product dissolution rate: 8 minutes at 65°C.

Embodiment 2

[0026] Take 400g of agar, 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 agar product.

[0027] Product dissolution rate: 65°C, 7 minutes.

Embodiment 3

[0029] Take 30g of agar and 3g of sucrose, disperse in 2kg of water with stirring, and boil for several minutes until completely dissolved. The completely dissolved mixed solution is treated at 150MPa by an ultra-high pressure homogenizer, and the mixed solution processed by the ultra-high pressure homogenizer is 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.), sterilized by microwave drying or air-dried, dried, crushed and sieved to obtain Low temperature instant modified agar.

[0030] Product dissolution rate: 6-8 minutes at 60°C.

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Abstract

The invention discloses production technology of low-temperature instant-dissolving agar. The technology includes the steps: adding cosolvent into seaweed glue liquid or adding water into agar and cosolvent, boiling, dissolving completely, processing through a high-pressure or superpressure device, dehydrating through a plate-and-frame filter press, microwave drying to sterilize till an appropriate amount of water is left, smashing and sieving to obtain low-temperature instant-dissolving products (physical modified agar); or processing through the high-pressure or superpressure device and spray-drying to obtain the products (physical modified agar); or processing through the high-pressure or superpressure device, superfreezing, thawing, filter-pressing, extruding through a screw compressor, airing and smashing to obtain the products (physical modified agar). The low-temperature instant-dissolving agar produced by using the technology method has the advantages of being fast in dissolving at the low temperature.

Description

technical field [0001] The invention relates to a manufacturing technology of agar 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] Agar, also known as "agar gum", is a polysaccharide extracted from marine red algae plants such as Geliflower and Gracilaria, and its main component is polygalactose sulfate. Because of its special gel properties, agar has been widely used in food, medicine, chemical industry, textile, national defense, scientific research and other fields. Agar has long bee...

Claims

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Application Information

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IPC IPC(8): C08B37/12
Inventor 杨松涛
Owner 青岛德慧海洋生物科技有限公司
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