Advantages of biosurfactant production by fermentation

2020-06-18 23:54:56

The production of biosurfactant by fermentation has the advantages of low production cost, variety and simple technology, which is convenient for large-scale industrial production, but the cost of separation and purification of the product is high.

Compared with microbial fermentation, most of the surfactants synthesized by enzymatic method are relatively simple molecules, but they also have excellent surface activity. It has the advantages of low extraction cost, convenient secondary structure improvement, easy purification and reusable immobilized enzyme, and the surfactant synthesized by enzymatic method can be used to produce high value-added products, such as drug components. Although the cost of enzyme preparation is high at present, it is expected to reduce the production cost by enhancing the stability and activity of enzyme through genetic engineering technology. A kind of

Two anionic surfactants with excellent performance were selected from single component: sodium dodecylbenzene sulfonate (ABS), fatty alcohol polyoxyethylene ether sulfate (AES); Three Nonionic Surfactants with excellent performance: fatty alcohol polyoxyethylene ether (AEO-9), octyl phenol polyoxyethylene ether (OP-10), polyoxyethylene dehydrated sorbitan stearate (tween-60). Then add the fatty acid catcher (which can gather the ink together to form a large agglomerate), the dispersant carboxymethylcellulose (CMC, which can form hydrophilic particles with the ink to form a diffusion state, and no longer deposit on the fiber), and prepare four deinking agent formulas. According to the above-mentioned process steps, select the compound formula 3 with better effect.

Paper is an important packaging material. With the increasing demand of paper and paperboard, it is bound to cause the shortage of raw materials and energy. Due to the limited forest resources and the shortage of water resources in our country, it can not meet the needs of the paper industry. Therefore, in the era of advocating ecological civilization and circular economy, the recycling of waste paper and paper products is very important.