Different functions and requirements of surfactants in fermentation production

2020-05-10 09:09:43

Surfactant is a main component of detergent decontamination formula. Except for special use, these products are discharged into the environment directly or after being treated by sewage treatment plant. However, the anionic surfactants which are difficult to be biodegraded are the most important in detergents. The massive discharge of surfactant containing wastewater will not only directly harm the aquatic environment, kill the microorganisms in the environment, inhibit the degradation of other toxic substances, but also lead to the reduction of dissolved oxygen in the water, especially the nitrogen and phosphorus containing surfactants will cause eutrophication of the water. When the surfactant in the sewage reaches a certain concentration, it will affect many processes, such as aeration, sedimentation, sludge nitrification and so on.

Modern fermentation industry has become a promising industry in the 21st century with its characteristics of low energy consumption, high yield, less pollution, low investment and high efficiency. In recent years, China's fermentation industry has shown a sustained and rapid growth momentum. The traditional fermentation industry represented by wine making is rooted in urban and rural areas. The new fermentation industry represented by antibiotics, amino acids, organic acids, single-cell proteins and enzyme preparations has formed a complete industrial system in China, and its scale and output account for a considerable proportion in the world. A kind of

With the continuous development of biotechnology, the basic research of bacteria and surfactants is deepening, and the application of surfactants in fermentation has shown great potential and superiority. Especially in the separation and purification of biomass, it has the characteristics of large processing capacity, continuous operation and low activity loss, which makes its application research in the biological downstream engineering become a hot spot. According to the different functions and requirements of surfactants in fermentation production, suitable surfactants can be selected, and new surfactants with green and high performance can be developed continuously. With the development of science and technology, the special structure and function of surfactants will play a greater role in the field of fermentation industry.

The trend of surfactant's steady growth in the world provides a good external environment for the development and expansion of cosmetics industry, and the requirements for product structure, variety, performance and technology are also higher and higher. Therefore, it is necessary to systematically develop safe, mild, biodegradable and special surfactants, provide theoretical basis for the development and application of new products, focus on the development of glycoside surfactants, which can develop a variety of polyols and alcohol surfactants, systematically research and develop soybean phospholipid surfactants, develop sucrose fatty acid ester series products, and strengthen the compound technology In order to reduce the harm of chemical composition to human body, it is believed that the development of environmental friendly surfactants will greatly promote the development of functional cosmetics.