32 results about "Argininic acid" patented technology

The invention discloses a flexible bamboo lignin-based polymer material as well as a preparation method and application thereof. Arginine modified polyphenol bamboo lignin and lipoic acid are used as raw materials, and the flexible bamboo lignin-based polymer material with excellent performance is prepared through lipoic acid ring opening polymerization and sulfydryl free radical-polyphenol Michael addition reaction. The preparation method specifically comprises the following steps: carrying out demethylation phenolation modification on bamboo lignin by using a one-pot method, grafting arginine, improving the reaction activity of the bamboo lignin, quantitatively introducing lipoic acid, blocking by using allylurea, and synthesizing the bamboo lignin-based polymer material containing the allylurea, wherein the polymer material contains a dynamic disulfide reversible ring-opening structure. The method breaks through the limitation that the existing lignin is low in reaction activity and lignin-based macromolecules are difficult to recycle, expands the application scene and range of the lignin, and realizes a green mode of oriented preparation, cyclic processing and efficient utilization of the lignin-based macromolecules; and a theoretical basis and guiding significance are provided for high-quality development and high-valued frontier application of the forest resource lignin.

A skin care composition comprises growth-enhancing compounds which promote the development of a healthy skin microbiome and in particular, a carbon source selected from one or moreof glucose, fructose, saccharose, maltose, maltodextrin, pyruvic acid, pyruvate, lactic acid and lactate, and a nitrogen source selected from one or more of alanine, glycine, arginine and urea, and / or caprylic / capric triglycerides.