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Vapour explosion cracking method for cell wall of marine algae

A cell wall and seaweed technology is applied in the field of steam explosion wall of seaweed cell walls, and achieves the effects of improving agar yield, simple and easy operation, and avoiding environmental pollution.

Inactive Publication Date: 2004-06-09
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a method for breaking seaweed cell walls by steam explosion without adding any chemicals, which can realize fast, simple and pollution-free processing of seaweed cell walls, and solve the long-standing problems in seaweed processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put the wet kelp into the steam explosion tank, first pass in saturated steam, make the temperature in the tank reach 100°C, keep it for 2 minutes, stop the supply of saturated steam, and feed high-pressure air into the steam explosion tank to make the pressure in the tank reach 1.5Mpa , Open the discharge ball valve to spray the material into the atmospheric cyclone separator. In this process, the cell wall (algin layer) of kelp is instantly broken, and the cell contents are freed. After that, the obtained kelp product is directly dried, pulverized and processed into kelp functional food. Because the wall breaking rate of the seaweed product after the steam explosion wall breaking treatment reaches 100%, the substances in the seaweed cells are freed, the functional food is easy to absorb and digest, and has a unique flavor of puffed food.

Embodiment 2

[0020] The equipment used in this embodiment is a large (5m 3 ), a steam explosion tank with a quick opening door and a dual air intake (high pressure air and saturated water vapor).

[0021] The process steps of this embodiment are as follows: put the wet rock cauliflower into the steam explosion tank by quickly opening the door of the steam explosion tank, first feed saturated steam, make the temperature in the tank reach 80°C, and maintain it for 6 minutes; close the steam valve, and open the high-pressure air Valve, feed high-pressure air into the steam explosion tank until the pressure in the tank reaches 1.2Mpa; open the discharge ball valve to spray the material into the atmospheric cyclone separator. In this process, the cell wall (algin layer) of Geliflower is broken instantly, and the cell contents are freed. The steam-exploded agarose is used as raw material, the acid hydrolysis pretreatment process is omitted, and the agar is extracted according to the American ag...

Embodiment 3

[0023] The equipment used in this embodiment is a large (5m 3 ), a steam explosion tank with a quick opening door and a dual air intake (high pressure air and saturated water vapor).

[0024] The process steps of this embodiment are as follows: put the wet algae into the steam explosion tank by quickly opening the door of the steam explosion tank, first pass saturated steam until the temperature in the tank reaches about 90°C, and maintain it for 1min; close the steam valve and open the high pressure The air valve is used to feed high-pressure air into the steam explosion tank until the pressure in the tank reaches 0.8Mpa; open the discharge ball valve to spray the material into the atmospheric cyclone separator. In this process, the cell wall (algin layer) of the algae is broken instantly, and the breaking rate reaches 100%, and the cell contents are freed. Adopting the steam-exploded algae to be a raw material, the alkali treatment process is omitted, and other methods extr...

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PUM

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Abstract

The present invention relates to a steam explosion wall-breaking method of seaweed cell wall, and said method includes the following steps: (1). placing wet seaweed in steam explosion tank, introducing saturated steam until the tank interior temp is up to 80-100 deg.C, and retaining for 1-8 min.; (2). stopping steam supply, introducing high-pressure air into the steam explosion tank until tank interior pressure is up to 0.8-1.5 MPa; and (3). instantaneously reducing pressure and releasing so as to obtain seaweed product whose wall-broken rate is up to 100%. Said seaweed product can be used for preparing seaweed functional food with high nutritive value and good taste, agar and carrageen gum, etc.

Description

technical field [0001] The invention relates to a processing method of seaweed, in particular to a method for breaking the cell wall of seaweed by steam explosion. Background technique [0002] Seaweed is one of the richest sources of functional food and seaweed chemical products. It is rich in nutrients, many of which are not found in terrestrial plants but are very beneficial to human health. For example, seaweed has more balanced high-quality protein and γ- Linolenic acid, β-carotene, etc. Spirulina, etc. have been designated as the most nutritious future food by the United Nations. Seaweed is not only the most important food source for humans in the future, but also an important resource for preparing seaweed polysaccharide products such as agar and carrageenan. [0003] my country has very sufficient seaweed resources, but because seaweed cells have a thick cell wall (algin layer) composed of complex polysaccharides such as cellulose and hemicellulose, the utilization...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L35/00
Inventor 陈洪章贾希堂王学才李新胜李佐虎
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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