Process for extracting phytosterol from papermaking wood pulp oil slick pitch

Abstract

The invention discloses a process for extracting phytosterol from papermaking wood pulp oil slick pitch. The method comprises the following steps of: selecting the waste of wood pulp used in the papermaking industry, i.e. wood pulp oil slick pitch; and directly extracting phytosterol from the wood pulp oil slick pitch by utilizing an ion exchange resin method. The invention can be used for directly extracting the phytosterol from the papermaking wood pulp oil slick pitch instead of the steps of extracting tall oil from the wood pulp and then extracting the phytosterol from the tall oil and has the advantages of low raw material cost, high comprehensive utilization degree and high purity and yield of the extracted phytosterol.

Description

technical field [0001] The invention discloses a method for extracting phytosterols from papermaking wood pulp tall oil pitch. Background technique [0002] Phytosterols are a class of natural components present in plants. A large number of animal experiments and human clinical trial data show that phytosterols and their esters have significant significance in reducing blood cholesterol levels and reducing the occurrence of cardiovascular diseases. They are an important medicine Raw materials and health food ingredients. [0003] The Finnish Rasio company introduced the phytosterol-containing product Benecol to the market in 1995. It is the first country in the world to introduce phytosterol-lowering cholesterol functional foods. Later, Australia, Belgium, Brazil, Denmark, France, Germany, Japan, the Netherlands, Spain, Products from Switzerland, Sweden, the United Kingdom, the United States and other countries have been launched one after another. In 1999, phytosterol foo...

AI Technical Summary

Problems solved by technology

[0007] Regardless of using a single solvent method or a mixed solvent method to extract phytosterols from wood pulp tall oil pitch, they cannot overcome the characteristics that long-chain alcohols and acidic impurities are difficult to separate from sterols In order to overcome the deficiency of solvent extraction method, people begin to introduce the method of distillation recently, and people such as Diaz and Michael. Great improvement, but there are still disadvantages such as large amount of saponified substances polluting the environment, high ordinary distillation temperature, some sterols are destroyed, and the purity of phytosterols has not reached the standards of European and American countries, etc.

[0008] In addition, to prepare phytosterols from tall oil pitch, as far as the basic raw material is concerned, it is necessary to extract tall oil by leaching wood with high tall oil content. Asphalt, this step alone has already consumed a lot of manpower, material resources, and financial resources, and the subsequent sterol extraction process still has many of the above-mentioned defects, so we must conduct research based on our country's raw material resources and industrialization priorities

Images