A kind of hyaluronic acid, its preparation method and application
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A technology of hyaluronic acid and other aspects, applied in the field of cosmetics, can solve the problems that hyaluronic acid is difficult to be absorbed by the human body, and the moisturizing effect cannot be lasting.
Active Publication Date: 2021-07-30
SHANDONG TIANSHENG BIO TECH CO LTD
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However, the high molecular weight also makes it difficult for hyaluronic acid to be absorbed by the body, and the moisturizing effect cannot last after the application surface is in contact with water
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Embodiment 1
[0041] Example 1 Preliminary Screening
[0042] In order to develop hyaluronic acid products with better performance, the inventors first prepared HA with different PD and molecular weight ranges.
[0043] Preparation of HA
[0044] The hyaluronic acid of the present invention is obtained by fermenting and purifying Streptococcus zooepidemicus (Sterptococcus zooepidemicus, purchased from ATCC, catalog number HA-116ATCC39920), and the specific method is as follows:
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Abstract
The present invention relates to a kind of hyaluronic acid, its preparation method and application, the hyaluronic acid has the weight average molecular weight of 5kDa-3000kDa, the number average molecular weight of 5kDa-3000kDa, the viscosity average molecular weight of 5kDa-3000kDa, and has 7-15 polydispersity coefficient. The invention also relates to the preparation method and use of said product.
Description
technical field [0001] The invention relates to the field of cosmetics, in particular to hyaluronic acid, its preparation method and its use in the preparation of cosmetics. Background technique [0002] Hyaluronic acid (hyaluronan, HA), also known as uronic acid, hyaluronic acid, glass sugar carbonic acid, is a straight chain composed of alternately arranged D-glucuronic acid and N-acetyl-D-glucosamine. Linear macromolecular polysaccharides. Hyaluronic acid is present in connective tissues of vertebrates, such as hyaline cartilage, synovial joint fluid, and skin tissues (dermis and epidermis), and is involved in many physiological processes, such as adhesion, development, cell motility, cancer, angiogenesis, and wound healing (Laurent T.C. and Fraser J.R.E., 1992, FASEB J.6:2397-2404; and Toole B.P., 1991, Proteoglycans and hyaluronan in morphogenesis and differentiation., Cell Biology of the Extracellular Matrix, pp.305-341, edited by Hay E.D., Plenum , New York). [00...
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