Extraction method of microalga grease

Abstract

The invention discloses an extraction method of microalga grease. The extraction method comprises the following steps of: with alga ooze or dry powdery microalgae as raw materials, smashing pretreated microalgae in a microwave radiation manner, and meanwhile, extracting the microalgae by using an organic solvent; and after the extraction is ended, separating all substances to obtain the microalga grease. The microwave frequency can be any one of 2450MHz, 915MHz and 896MHz, and the microwave power is set to be 1-50kW / L. The method provided by the invention has the advantages of simple operation process, short extraction time, low energy consumption, strong raw material adaptability, high microalga grease yield and the like.

Description

technical field

[0001] The invention relates to a method for extracting microalgae oil. Background technique

[0002] Microalgae refers to tiny algae, which belong to aquatic plants. They have the characteristics of wide distribution, large biomass, high photosynthetic efficiency, strong environmental adaptability, short growth cycle, and high biomass yield. Microalgae can use the photosynthetic reaction system, through the CO 2 The fixation of light energy into chemical energy is stored in the body cells in the form of organic matter such as oil or starch, and its solar energy conversion efficiency can reach 3.5%. Microalgae is a potential resource for the production of pharmaceuticals, fine chemicals and new fuels. With the shortage of resources in human society and the increasingly severe environmental problems, the use of microalgae for the development of biodiesel and some fossil energy substitutes can overcome the need for petroleum resources. The disadvantage of non...