How to extract sodium carbonate from seaweed

Compound degradation extraction method. The extraction technology of seaweed extract mainly includes physical method, chemical method, biological method and compound method. The content of effective active ingredients and the efficacy of products are different in different processes. Among them, the physical method is the most traditional, which is mainly obtained by high temperature, high pressure, microwave, ultrasonic and other technical means, with high cost, complex process and low extraction rate. The chemical method is to digest the cell wall of seaweed with strong acid and alkali to get the extract, which has low cost and is widely used in agriculture at present. For example, according to the method disclosed in the patent (cn 1269339a), alkaline solution is used first, and then acidic solution is used for degradation, but strong acid and alkali may destroy the biological activity of some functional substances. Biological method uses enzymes to degrade and release different substances from cells through the comprehensive action of different enzymes, which is environmentally friendly and efficient, but it has high technical content and is greatly influenced by factors such as enzyme activity and high cost. Therefore, the invention optimizes the advantages and disadvantages of different methods to form a composite degradation extraction method, which can not only effectively improve the extraction rate of seaweed extract, but also keep the biological activity of its functional substances as much as possible.