Technology with high utilization rate for extracting agar from gracilaria seaweed

A utilization rate and agar technology, which is applied in the field of production technology for extracting agar products with high utilization rate of Gracilaria seaweed, can solve the problems of backward production technology, low comprehensive utilization rate and high cost of sewage treatment, and achieves improvement of agar extraction rate and condensation rate. The effect of improving the glue degree, improving the glue extraction rate of raw materials, and improving the comprehensive utilization rate

Inactive Publication Date: 2018-08-21
FUJIAN GOLD SWALLOW OCEAN BIOTECH
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Problems solved by technology

At present, there are many manufacturers producing agar in China, and they generally use traditional processing methods. Most of them use the traditional process of soaking in alkali→bleaching→acidification→boiling gelatin to process. The strong alkali, strong acid and chloride ions that need to be used are serious. "Triple" pollution, high cost of sewage treatment, high environmental cost
At the same time, small workshops are produced on a large scale, and the production equipment is backward.

Method used

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no. 1 example

[0019] First embodiment: 1. the high utilization rate production technology of extracting high activity agarose product in red algae, is characterized in that:

[0020] Include the following steps:

[0021] A. Gracilaria seaweed raw material algae body is soaked in lye solution with a concentration of 40-80g / L at 80-100°C for 0.5-1.0 hours, and the amount of lye solution is 15-20 times that of algae body;

[0022] B. Filtration, the algae body is washed with water until the pH is 5.5-7.0;

[0023] C. the mass percentage of the algae used is 0.20-0.50% of the acid solution, soaked at room temperature for 0.5-1.0 hours, and the amount of the acid solution is 10-20 times the body weight of the algae;

[0024] D. Filter, wash the algae with clean water until the pH is 5.5-7.0;

[0025] E. The algae are added with tap water to carry out the first gel extraction under the pressure of 100-110℃ and 0.08-0.1MPa, and the gel extraction time is 20-60min;

[0026] F. the filtrate, the ...

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Abstract

The invention discloses a technology with high utilization rate for extracting agar from gracilaria seaweed. Seaweed bodies are pretreated with a low-alkali high-temperature method, consumption of alkali is reduced, and product strength is improved; gel extraction is performed with a high-temperature pressurization method, and the gel output rate is effectively increased; the production cycle canbe shortened; a multi-stage vibrating screen filtration technology is developed, the seaweed with gel incompletely output is filtered and returned to secondary gel extraction, waste is reduced, and the gel extraction rate is increased; meanwhile, residues are modified and processed to form fertilizer and feed additives, so that the comprehensive utilization rate of raw materials is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of production technology for extracting agar products with high utilization rate of Gracilaria seaweed, in particular to a production technology for agar, and in particular to a production technology technology for extracting agar products with high utilization rate of Gracilaria seaweed. Background technique [0002] Agar, scientific name agar, also known as agar, frozen powder, agar, etc., is a polysaccharide colloid extracted from red algae, a marine resource, and is widely used in biotechnology, medicine, food, daily chemicals and other industries. The use of agar in food can significantly change the quality of food and improve the grade of food. It is characterized by physical and chemical properties such as coagulation, stability, and the ability to form complexes with some substances, and can be used as thickeners, coagulants, suspending agents, emulsifiers, preservatives and stabilizers. Agar can be...

Claims

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Application Information

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IPC IPC(8): C08B37/12
CPCC08B37/0003
Inventor 许河山陈宇鹏许江鸿
Owner FUJIAN GOLD SWALLOW OCEAN BIOTECH
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