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As early as 1780, the Swedish chemist Sheele discovered lactic acid from waste milk; the production of lactic acid by fermentation originated from the natural fermentation of Boutron and Fremy in 1941; the industrial production of lactic acid by pure fermentation was started by Charles E. Avery in 1881. began; and large-scale industrial production of L-lactic acid was formed in the early 1990s.

Collagen, (acmetea) repair factor is a macromolecular functional protein. It is the main component of the skin and accounts for 80% of the dermis of the skin. It forms a fine elastic network in the skin to firmly lock moisture and support the skin.Collagen is a high molecular functional protein. It is the main component of the skin and accounts for 80% of the dermis of the skin. It forms a fine elastic network in the skin, which firmly locks in moisture and supports the skin.

Evening primrose (Eveningprimrose) is a willow leaf vegetable native to North America. It gets its name because its flowers only bloom at night. Its roots, stems and leaves are often used as medicine by European nobles, so it is also known as the emperor’s panacea.Modern research has found that evening primrose oil extracted from evening primrose seeds is rich in GLA (gamma-linolenic acid). GLA is an unsaturated fatty acid, which is an important component of human cell membranes.

New Use of Poly-L-lactic Acid as Shape Memory MaterialBackground techniqueBiopolymer is an important medical polymer material with good biodischarge and bioabsorbability advantages. It has been widely used in outdoor fixation, tissue engineering stents, operation lines, drug control, etc. Polylactic acid is usually synthesized by the ring polymerization method of lactide. According to the difference of optical ring-opening polymerization, the lactide properties are divided into D-lactide properties, L-lactide properties and DL-lactide properties.

Camphor oil is one of the coloring oils used in glaze colors. Made from camphor resin. Light yellow, volatile, with a strong camphor smell. “Ceramic Color Painting”: “Use it to expand the color when painting new colors, it is easy to develop the oil, the brush is loose, and it dries quickly after painting. Pastel is rarely used, only used for freehand color expansion. Sometimes It is also used to develop dry pens, or to wipe off the residue that has consolidated in the dish, or to wipe off the dried waste line on the screen.

Breaking News: Innovative Advancement in Sodium Sulfur BatteriesResearchers at Osaka Metropolitan University have achieved a significant breakthrough in the development of all-solid-state sodium batteries, a promising alternative to lithium-ion batteries for next-generation energy storage systems.

Sodium Sulfide Market Sees a Surge Amidst Growing Demand for Clean WaterThe global sodium sulfide market is experiencing a significant upsurge driven by the increasing demand for clean water.

Pectin is a sort of all-natural polymer substance, which generally exists in all greater plants as well as is an important component of plant intercellular compound. Pectin is transferred in the key cell wall as well as intercellular layer, and cross-links with various components of cellulose, hemicellulose, lignin microfibrils as well as some extensin in the primary wall to make various cell cells frameworks Difficult, exhibiting an intrinsic shape, and also a supporting material for internal cells.

lycopene: dark red powder, has the unique smell and taste of lycopene.Lycopene (CAS No.: 502-65-8), dark red powder, has the unique smell and taste of lycopene. The lycopene produced by microbial fermentation mainly uses fermented substrates such as corn steep liquor, soybean meal and starch as the medium, and uses Blake Sleatrispora as the strain. After fermentation, filtration, drying, extraction, crystallization and Manufactured by refining and other processes.The main functions of lycopene are as follows:1. Anti-oxidation, delay aging;2. Improve the body’s immunity;3.

Table of Funny Chemistry StoriesOld new sealPure blue ink and blue-black inkFind a "coat" for the bookBallpoint pen or ballpoint penFour Color Ball StampsThe "natural enemy" of glassThe "Haunted" StoryNational football - our prideFlash in the darkReferenceSodium Propionate CAS 137-40-6Old new sealThere is a batch of ancient paintings that have become grayish yellow and dull, but the seals on them are bright red, like new ones.