1 results about "Ethyl cinnamate" patented technology

This invention discloses a halitosis-eliminating toothpaste containing galangal extract and its preparation process. The toothpaste comprises a galangal volatile oil-cyclodextrin inclusion complex and / or positively charged nanoparticles loaded with galangal flavonoids, as well as a pH adjuster, sodium bicarbonate. Ethyl p-methoxycinnamate and ethyl cinnamate in the galangal volatile oil undergo a Michael addition reaction with methanethiol under weakly alkaline conditions, rapidly neutralizing existing odor-causing sulfides. The positively charged nanoparticles are electrostatically adsorbed onto the tooth surface, slowly releasing flavonoids and providing long-lasting inhibition of odor-producing bacteria. The preparation process includes gel preparation, graded pre-dispersion, sequential addition and mixing, and vacuum degassing, further specifying the preparation methods of the inclusion complex and nanoparticles. This invention is free of metal ions and chemical bactericides, achieving immediate neutralization and long-lasting antibacterial synergy, and is characterized by safety, stability, naturalness, and high efficiency in eliminating halitosis.