In the field of daily chemical products
Detergent: It is one of the main application areas, such as N-fatty acyl amino acid type (N-fatty acyl sarcosinate, N-lauroyl aspartic acid salt, N-lauroyl glutamate salt, etc.), which has good foaming power, foam stability and washing ability. Even in the presence of sebum oil, it does not defoam, is stable to hard water, does not degrease, is close to neutral, and does not irritate the skin and eyes. It is suitable for use as a cleanser, shampoo, shower gel, etc., and can also be used by people with sensitive skin and infants. Adding amino acid surfactants to LES can increase its affinity for hair, protect hair, and also have a certain bactericidal ability, keeping hair soft. In addition, potassium N-cocoyl glycinate can be used for facial cleansing, N-lauroyl alanine salt can be used to formulate infant care products, and AAS based on N-lauroyl used in toothpaste has good descaling ability and strong enzyme inhibition effect.
Oral care products: such as sodium N-lauroyl ammonium can be used as a tooth powder foaming agent in toothpaste formulations, which has a cleaning effect and freshens breath. It can also inhibit lactobacilli in the mouth to convert glucose into lactic acid.
In the food industry, it is mainly used as a food emulsifier, defoamer, sugar additive, cleaning agent, and fruit peeler. The most widely used is food emulsifier. For example, sodium N-lauroyl ammonium is widely used in the food industry. 0.2% of sodium N-lauroyl ammonium can inhibit the aroma overflow of candy coated with vegetable oil and cocoa powder, prevent odor growth, have anti mold effects, and prevent food and beverages from fermenting and spoiling during storage; Adding 0.1% -1.0% sodium N-lauroyl ammonium to food additives can inhibit the fermentation of acidic substances in carbohydrates and leave them in dental caries.
In the field of antibacterial agents, N-acyl amino acids and their salts, as well as amino acid ester surfactants, have good bactericidal ability against Gram positive and Gram negative bacteria and certain filamentous bacteria. N-Alkyl - β - Aminopropionic acid surfactants can achieve ultra-low values at the oil-water interface without the addition of alkali, and have good stability during aging, which can improve oil recovery.
In the field of mineral flotation, sodium lauroyl sarcosinate has a good synergistic effect with cationic surfactants to achieve higher flotation efficiency.
In the leather industry, it is mainly used as an emulsifier, dyeing assistant, and amphoteric fatliquor in leather making. It can also be used as a solvent resistant and dry cleaning resistant fatliquor separately.
In the agricultural field, adding N-acyl amino acid salt surfactants during pesticide formulation can increase the activity of pesticide active ingredients and reduce the irritation and toxicity of pesticides; Treating soybean rhizobia with certain N-acyl amino acid anionic surfactants can enhance their activity and nitrogen fixation ability. Some amino acid surfactants can be used as insecticides, herbicides, and plant growth inhibitors in agricultural production, while betaine ester surfactants can be used as "temporary insecticides" that are easily hydrolyzed into harmless components.
In the fields of drug manufacturing and biochemical research, synthesized acyl amino acid peptides can be used as drug carriers for the preparation of functional liposomes with lipopeptide ligands. Gemini surfactants have the potential to serve as carriers for transporting bioactive molecules and can be used for gene therapy and DNA transfection. Fatty acids have significant antiviral activity, and certain acyl amino acid derivatives can inhibit influenza neuraminidase.