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235 results about "Hydroxyproline" patented technology

(2S,4R)-4-Hydroxyproline, or L-hydroxyproline (C₅H₉O₃N), is a common non-proteinogenic amino acid, abbreviated as Hyp, e.g., in Protein Data Bank.

Acyltransferase mutant and application thereof in synthesis of N-acetyl-trans-4-hydroxyproline

The invention discloses an acyltransferase mutant and application of the acyltransferase mutant in synthesis of N-acetyl-trans-4-hydroxyproline, and belongs to the technical field of enzyme engineering. The acyltransferase mutant provided by the invention contains 10th and 95th mutations on the basis of a corresponding amino acid sequence, such as a sequence as shown in SEQ ID NO.1, or contains 62nd or 64th mutations while containing the 10th and 95th mutations. Compared with an original enzyme before mutation, the acyltransferase mutant obtained by the invention has higher acyltransferase activity, and the conversion rate of trans-4-hydroxy-L-proline is greatly improved, so that the yield of N-acetyl-trans-4-hydroxy proline is further improved, and the yield of N-acetyl-trans-4-hydroxy proline is improved. After the surfactant and the metal ions are added, the yield of the N-acetyl-trans-4-hydroxyproline synthesized by the mutant D62K / D10V / D95I under the catalysis is up to 18.7 g / L.
Owner:KELAINI COSMETICS TECH CO LTD +1

Recombinant collagen based on engineering bacterium expression and preparation method thereof

The invention belongs to the technical field of genetic engineering, and particularly relates to recombinant collagen based on engineering bacterium expression and a preparation method thereof, and the recombinant collagen is formed by connecting repetitive units derived from human III type collagen in series for three times; the invention also discloses a base sequence of the coding gene of the recombinant collagen, efficient expression and accurate folding of target protein are realized through genetic modification of engineering bacteria, a light-operated dynamic folding process and an orthogonal purification strategy, and cascade purification of a His6-SUMO tag and an intein-CBD module is utilized to obtain the recombinant collagen. The product purity and the native conformation retention rate are remarkably improved, and the technical problems that hydroxyproline depends on exogenous addition, the folding controllability is poor and the purification efficiency is low in a traditional process are solved.
Owner:HUAFAN BIOTECHNOLOGY (GANSU) CO LTD

Recombinant I-type collagen with low-temperature self-assembly characteristic as well as preparation method and application of recombinant I-type collagen

The invention discloses recombinant I-type collagen with a low-temperature self-assembly characteristic as well as a preparation method and application thereof, and relates to the technical field of genetic engineering. The recombinant I-type collagen with the low-temperature self-assembly characteristic is characterized in that an amino acid sequence of the recombinant I-type collagen is obtained by taking a human I-type collagen fragment as a basic unit and repeatedly connecting in series for n times, an amino acid sequence of the human I-type collagen fragment is shown as Seq ID NO.1, and n is an integer greater than or equal to 1. According to the invention, nucleotides of repetitive fragments of functional areas of the human-derived I-type collagen are optimized and screened, and co-expressed with hydroxyproline enzyme genes in a pichia pastoris system, so that the recombinant I-type collagen with low-temperature self-assembly characteristics is successfully obtained.
Owner:INTERFIELD (CHENGDU) BIOLOGICAL PROD CO LTD

Wrinkle-removing and anti-aging composition containing recombinant collagen as well as preparation method and application of wrinkle-removing and anti-aging composition

The invention belongs to the technical field of cosmetics, and discloses a wrinkle-removing and anti-aging composition containing recombinant collagen as well as a preparation method and application of the wrinkle-removing and anti-aging composition. The composition is prepared from the following components: 20.4 to 35.6 percent of glycerol, 1.1 to 3.5 percent of 1, 2-hexanediol, 8.2 to 15.4 percent of apple fruit cell culture extract, 1.6 to 3.2 percent of inositol, 0.2 to 1.0 percent of elastin, 0.1 to 1.7 percent of hydroxyproline, 0.1 to 1.0 percent of sodium polyglutamate, 0.1 to 1.0 percent of sodium hyaluronate, 0.01 to 0.1 percent of acetyl hexapeptide-8, 0.01 to 0.1 percent of fibronectin, 1.72 to 3.21 percent of soluble collagen and the balance of deionized water. The amino acid sequence of the soluble collagen is as shown in SEQ ID NO. 1. The skin care product prepared by adding the anti-wrinkle and anti-aging composition is good in safety and has the effects of resisting wrinkles, improving skin elasticity and resisting aging.
Owner:GUANGDONG QIANLIN BIOTECHNOLOGY CO LTD +2

Plasma metabolite composition for auxiliary diagnosis of subclinical mastitis of dairy cow and application of plasma metabolite composition

The invention relates to a plasma metabolite composition for auxiliary diagnosis of sub-clinical mastitis of dairy cows and application of the plasma metabolite composition. The plasma metabolite combination is a first combination and / or a second combination, and the first combination is composed of glyceryl monolinoleate, 2-methylthiophene, L-cystine, (S)-(+)-citramalic acid, 9-hydroxy-10, 12-octadecadienoic acid, 16-hydroxyhexadecanoic acid, tyrosine hydroxyproline, stearoyl serotonin and histamine; the first composition is composed of 4, 5-dimethyl-2, 4, 5-trimethyloxazole, 12, 13-epoxy octadecadienoic acid, 2-cyclotetradecene-1-ketone, 4 [alpha]-carboxyl-5 [alpha]-cholest-8-ene-3 [beta]-alcohol, N-arachidonyl dopamine d8, 9 (Z) and 11 (E)-conjugated linoleic acid, and the second composition is composed of 2, 5-dihydro-2, 4, 5-trimethyloxazole, 12, 13-epoxy octadecadienoic acid, 2-cyclotetradecene-1-ketone, 4 [alpha]-carboxyl-5 [alpha]-cholest-8-ene-3 [beta]-alcohol, N-arachidonyl dopamine A product prepared based on the plasma metabolite composition and used for auxiliary diagnosis of cow subclinical mastitis is simple in use method and high in accuracy, can be used for assisting a milk somatic cell number method to diagnose cow subclinical mastitis, and reduces the probability of false negative and false positive.
Owner:WUHAN ACADEMY OF AGRI SCI

Modified hydroxytyrosol, preparation method and application

The invention discloses modified hydroxytyrosol as well as a preparation method and application thereof. The provided preparation method of the modified hydroxytyrosol comprises the following steps: in the presence of an acidic solvent, mixing hydroxytyrosol, protease and collagen for reaction, mixing a reaction product with an extraction agent, performing centrifugal layering, and collecting upper-layer components, thereby obtaining the modified hydroxytyrosol, the protease comprises one or two of neutral protease and trypsin. Under the enzymolysis action of protease, the collagen can be decomposed into amino acid monomers such as glycine, proline and hydroxyproline, and the amino acid monomers can be subjected to graft modification with hydroxytyrosol; meanwhile, collagen fragments which are not subjected to enzymolysis also exist, and are subjected to graft modification with hydroxytyrosol in the form of collagen characteristic fragments. The oxidation resistance and the stability of the obtained modified hydroxytyrosol are obviously improved compared with those of unmodified hydroxytyrosol.
Owner:HANGZHOU MEILIMEI BIOTECHNOLOGY CO LTD

Micromolecular active collagen peptide as well as preparation method and application thereof

The invention discloses a preparation method of micromolecular active collagen peptide, which comprises the following steps: (1) cutting fresh leather into fragments, pretreating the leather with a sodium bicarbonate solution, rinsing the leather with deionized water, and refrigerating and storing; (2) mixing papain, bromelain, pancreatin, pepsase, alkaline protease, neutral protease and flavourzyme to obtain a compound enzyme preparation; (3) performing high-pressure steam sterilization on the leather at 110-140 kPa and 120-122 DEG C to obtain leather with the hydrolysis degree of 75-85%, then adding distilled water into the leather to obtain mucilage, then adding a compound enzyme preparation into the mucilage, reacting for 5.5-6.5 hours at the pH of 6.8-7.2 and the temperature of 50-55 DEG C, and then performing enzyme inactivation at the temperature of 85-95 DEG C; and (4) after the reaction system is cooled to room temperature, purifying and centrifuging the reaction system, and taking clarified supernate, thereby obtaining the product. Different animal skins are treated, the proportion of peptide fragments with the molecular weight smaller than 1000 Da of the prepared small-molecule active collagen peptide is larger than or equal to 80%, and the hydroxyproline content is larger than 3%.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Mineral-containing high-purity collagen tripeptide and preparation method therefor

The present invention relates to the technical field of active substance extraction, and specifically relates to a mineral-containing high-purity collagen tripeptide and a preparation method therefor. A high-purity collagen tripeptide containing mineral elements and having a high hydroxyproline content and no bad flavor, particularly no bitterness is obtained by using a byproduct of aquatic product processing, i.e., fish skin or fish scales, as a raw material, using a one-step enzymolysis method, and performing nanofiltration twice.
Owner:BEIJING QINGYAN BOSHI HEALTH MANAGEMENT CO LTD

Acyltransferase mutants with high acetylation activity and use thereof

The application discloses an acyltransferase mutant with high acetylation activity and application thereof, and belongs to the technical field of enzyme engineering. The acyltransferase mutant provided by the application contains one or more mutation sites in the 62th and 64th positions on the basis of the acyltransferase mutant with the amino acid sequence shown in SEQ ID NO. 1. The acyltransferase mutant obtained by the application has higher acyltransferase activity and catalytic efficiency than the original enzyme before mutation, and can improve the yield of N-acetyl-trans-4-hydroxyproline. Therefore, the acyltransferase mutant of the application has important significance in the efficient biosynthesis of N-acetyl-trans-4-hydroxyproline, and has wide application prospects in the fields of biological materials, medicines or cosmetics.
Owner:KELAINI COSMETICS TECH CO LTD +1

Collagen tripeptide liquid with moisturizing and anti-photoaging effects as well as preparation method and application of collagen tripeptide liquid

The invention provides collagen tripeptide liquid with moisturizing and anti-photoaging effects and a preparation method thereof, and relates to the technical field of bioactive peptides.The preparation method comprises the steps that pretreatment and first-time enzymolysis are conducted, specifically, pretreated fish skin and water are mixed, the pH value is adjusted, compound protease is added for enzymolysis, and first enzymatic hydrolysate is obtained; second-time enzymolysis: adjusting the pH value of the first enzymatic hydrolysate to 6.0-7.5, adding neutral protease for enzymolysis, and then adding aminopeptidase for enzymolysis for 20-40 minutes to obtain second enzymatic hydrolysate; and performing enzyme deactivation, decoloration, separation and purification to obtain collagen tripeptide liquid. Wherein the content of collagen tripeptide, the content of glycine-proline-hydroxyproline and the content of hydroxyproline are high, and good moisturizing and anti-photoaging effects are achieved.
Owner:江苏菌钥生命科技发展有限公司

Collagen peptide compositions from fish skins and scales and methods for producing same

Collagen peptide compositions and methods for producing these collagen peptide compositions from fish skin or fish scale are provided. The collagen peptide compositions are characterized by high protein content, minimal impurities, enriched hydroxyproline, and specific peptide sequences, making them suitable for use as supplements or additives in food and beverages.
Owner:THAI UNION GRP PUBLIC CO LTD

Anti-aging composition and application and product thereof

The invention belongs to the technical field of nutritional compositions and cosmetics, and particularly relates to an anti-aging composition and application and a product thereof. The composition provided by the invention is composed of L-ergothioneine and alpha-ketoglutaric acid, or L-ergothioneine and alpha-ketoglutaric acid salt, or L-ergothioneine and alpha-ketoglutaric acid salt. Through the synergistic effect of the L-ergothioneine and the alpha-ketoglutaric acid or the alpha-ketoglutarate, the contents of Col I and hydroxyproline in skin tissues can be remarkably increased, the expression of TGF-beta1 is up-regulated and converted, the activity of MMP-1 is inhibited, meanwhile, the malondialdehyde level is reduced to enhance the oxidation resistance, the synthesis of hyaluronic acid is promoted, and the water content of the skin is increased. The composition is simple in component and simple and convenient in preparation process, can be prepared into various products such as cosmetics, health care products or medicines, is used for achieving the effects of resisting aging, moisturizing, resisting inflammation or resisting oxidation, particularly has an excellent improvement effect on skin photoaging induced by ultraviolet rays, and is wide in application prospect.
Owner:BIOSTIME GUANGZHOU HEALTH PROD +1

Application of Gremlin1 antibody in resisting pulmonary fibrosis

The invention belongs to the field of pharmacy, and relates to a medicine for treating pulmonary fibrosis, in particular to application of an anti-Gremlin1 antibody to preparation of a medicine for preventing and treating pulmonary fibrosis. The Gremlin1 antibody disclosed by the invention can be applied to prevention and treatment of pulmonary fibrosis, effectively improves bleomycin (BLM)-induced pulmonary fibrosis lesions of mice and improves the survival rate of the mice. Compared with a BLM group, the mouse inspiration capacity (IC) and the lung static compliance (CRS) treated by the Gremlin1 antibody are remarkably improved, the hydroxyproline content in lung tissue is remarkably reduced, and compared with the BLM group, the Ashcroft score, the collagen deposition area in Masson three-color dyeing and the Sirius red dyeing area of an antibody intervention group are remarkably reduced, and the proportion of activated endothelial cells and the proportion of transition-state epithelial cells are remarkably reduced. Therefore, the Gremlin1 antibody can be used for preparing the medicine for preventing and / or treating the pulmonary fibrosis.
Owner:MEDICINE & BIOENG INST OF CHINESE ACAD OF MEDICAL SCI

Yak bone collagen peptide for improving osteoporosis as well as preparation and application of yak bone collagen peptide

The invention discloses a yak bone collagen peptide for improving osteoporosis and preparation and application thereof, and relates to the field of biological medicine, the yak bone collagen peptide comprises collagen peptide with the molecular weight of 500-2000 Daltons, contains a glycine-proline-hydroxyproline tripeptide core structure, can promote osteoblast differentiation and inhibit osteoclast activity, and can be used for treating osteoporosis. The amino acid sequence of the collagen peptide is any one of the following sequences: glycine-proline-hydroxyproline-glycine-glutamic acid-arginine, and the amino acid sequence of the collagen peptide is any one of the following sequences: glycine-proline-hydroxyproline-glycine-glutamic acid-arginine; and the amino acid is glycine, proline, hydroxyproline, serine, leucine and alanine. The yak bone collagen peptide has a unique glycine-proline-hydroxyproline tripeptide structure, the molecular weight is controlled within the range of 500-2000 Daltons, the structure can promote osteoblast differentiation and inhibit osteoclast activity at the same time, and the problem that a traditional osteoporosis treatment medicine is single in function is solved.
Owner:BEIJING SEMNL BIOTECHNOLOGY CO LTD

Collagen extraction process for increasing hydroxyproline content

The invention relates to the technical field of collagen extraction, and provides a collagen extraction process for increasing hydroxyproline content, which sequentially comprises the steps of raw material pretreatment, deliming and degreasing, directional enzymolysis, gradient pressure-temperature synergistic extraction, purification, concentration and drying, a composite pretreatment agent containing a proline hydroxylase activator, EDTA-2Na and neutral protease is adopted in the raw material pretreatment; deashing and degreasing are combined with a chelating agent solution and ultrasonic treatment; a compound enzyme solution composed of trypsin, papain and proline hydroxylase is used for directional enzymolysis; a two-stage gradient pressure-temperature cooperation mode is adopted for extraction; purification is realized through combination of gel filtration chromatography and ion exchange chromatography; and finally carrying out freeze concentration and vacuum freeze drying to obtain the product. According to the process, through a multi-step synergistic effect, the content of hydroxyproline in collagen is remarkably increased, the product purity is high, natural functional characteristics are reserved, and the process is suitable for the fields of food, cosmetics, biological medicine and the like.
Owner:JIANGXI CHENGZHI BIOENG

Preparation method for yeast-expressed type i recombinant human collagen with tri-helical structure and use thereof

Provided are a preparation method for a yeast-expressed type I recombinant human collagen with a tri-helical structure and use thereof. The preparation method comprises the steps of performing fermentation using an engineered bacterium and performing purification to obtain the type I recombinant human collagen with a tri-helical structure. A method for constructing the engineered bacterium comprises the step of transforming a host bacterium with plasmids pMChZ-α1(I), pMCrN-α2(I), pPIC9K-P4H(DP)-1, and pMCeH-[α1(I)] 2α2(I) to construct the engineered bacterium. The type I recombinant human collagen with a tri-helical structure prepared using the preparation method comprises hydroxyproline, and hydroxyproline accounts for 30% or more of total proline.
Owner:JIANGSU TRAUTEC MEDICAL TECH CO LTD

Method for preparing undenatured collagen type ii for alleviating joint pain

A method for preparing nondenatured collagen type II for alleviating joint pain includes pulverizing a cartilage raw material and defatting to obtain a total protein crude extract; adding anhydrous ethanol to the total protein crude extract, soaking, stirring, and centrifuging to obtain an anhydrous ethanol insoluble material; dissolving the anhydrous ethanol insoluble material in water, adjusting pH to acidic, stirring and centrifuging to obtain an acid-insoluble material; dissolving the acid-insoluble material in water, performing enzymatic hydrolysis and centrifuging to obtain an enzymatic hydrolysis precipitate; dissolving the enzymatic hydrolysis precipitate in water, followed by performing co-fermentation, and centrifuging to obtain a fermentation precipitate; and adding a water activity regulator to the fermentation precipitate, and then drying to obtain the nondenatured collagen type II. The content of protein, hydroxyproline and nondenatured collagen type II in the prepared nondenatured collagen type II is high, and the shelf life is prolonged.
Owner:BEIJING SEMNL BIOTECHNOLOGY CO LTD

Peptides, hydrogels, photoactivatable hydrogel precursors, methods of preparation and devices for delivery thereof, and methods of treatment therewith

PCT designated stage expiredWO2025147760A1Senses disorderPeptide/protein ingredientsCorneal diseaseHydroxyproline
Provided herein are self-assembling collagen-like peptide (CLP) comprising a plurality of amino acid trimer repeats having the amino acid sequence POG, wherein P is a proline, O is an hydroxyproline or a cysteine, and G is a glycine or a valine. Also provided herein are compositions, scaffolds, photoactivatable hydrogel precursors and hydrogels comprising the CLP and a multi-arm polyethylene glycol (PEG) polymer. Methods of preparing photoactivatable hydrogel precursors and hydrogels are also described. Methods of treating a wound, of treating a corneal disease, of treating a myocardial infarct, of promoting cell growth and of treating cellular degeneration using the compositions, scaffolds, photoactivatable hydrogel precursors and / or hydrogels are also described. Also provided is a device for delivering a peptide-based material. The device comprises an on / off button or switch for initiating and stopping delivery of the peptide-based material in the subject; a chamber for containing the peptide-based material; an aperture through which the peptide-based material exits the chamber, wherein the aperture is adapted for receiving a nozzle adapter; a camera port for securing a camera thereto; and a digital control display.
Owner:OTTAWA HEART INST RES CORP

Recombinant III-type human collagen expression strain with full-chain length and triple-helix structure as well as preparation method and application of recombinant III-type human collagen expression strain

The invention relates to a recombinant III-type human collagen expression strain with a whole chain length and a triple helix structure as well as a preparation method and application thereof, and belongs to the technical field of genetic engineering bacteria. The recombinant pichia pastoris genetically engineered bacterium expresses recombinant III-type human collagen with a full chain length and a triple helix structure, and a ku70 gene of the recombinant pichia pastoris genetically engineered bacterium is knocked out and knocked in a recombinant 4-proline hydroxylase coding gene and an FKBP22 coding gene. The recombinant pichia pastoris genetically engineered bacterium provided by the invention can be used for obtaining the recombinant full-chain-length triple-helix recombinant III-type human collagen with a higher expression level through high-density fermentation, does not contain heterologous sequences, has higher hydroxyproline content and thermal stability, is close to natural human collagen, has a stable triple-helix structure, is high in thermal stability, and can be used for preparing the recombinant III-type human collagen. The application in the fields of medical health and medical beauty such as medical beauty filling and tissue repair can be met.
Owner:GUANGZHOU TRAUER BIOTECH

Specific culture medium for detecting propionibacterium acnes in cosmetics and detection method thereof

The invention relates to a specific culture medium for detecting propionibacterium acnes in cosmetics and a detection method thereof, and belongs to the technical field of microbiological detection. Every 1000 mL of the specific culture medium contains 5-25 g of a nitrogen source, 5-10 g of a carbon source, 0.02-16 g of an inhibitor, 0.01-0.02 g of a color indicator, 0.1-13 g of a conditioning agent and the balance of a solvent. The inhibitor comprises Tween 80, a tea tree oil extract, cholate, sodium laurate and hydroxyproline. The specific culture medium provided by the invention is a propionibacterium acnes selective culture medium which is free of antibiotics, high in selectivity, sensitive in color development and low in cost. By optimizing the components of the culture medium and adding the selective inhibitor and the color indicator, the growth of other facultative anaerobic bacteria such as lactic acid bacteria can be effectively inhibited, specific culture and color development detection of propionibacterium acnes are carried out, and the accuracy and reliability of detection are improved.
Owner:GUANGZHOU ZHONGKE INSPECTION TECH TESTING CO LTD +2

Antifreeze glycopolypeptides

The present disclosure is concerned with peptides comprising alanine residues and glycosylated residues (e.g., glycosylated hydroxypropline residues, a combination of glycosylated hydroxyproline residues and glycosylated threonine residues) in a particular ratio (e g., from about 3:2 to about 4:1), wherein the peptide has a minumum chain length, such as, for example a chain length of at least 30 ammo acid residues. The disclosed peptides beneficially inhibit ice crystal formation, and, therefore, offer utility in a wide range of applications, including, but not limited to biomedical cry opreservation, food technology, agriculture, cosmetics, and building materials. Thus, the disclosed peptides can be formulated into a composition (e.g., a cryoprotectant composition, an agricultural formulation, a cosmetic composition) or a food product, or, alternatively, can be attached or coated onto a surface for use in structural applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Owner:UNIV OF UTAH RES FOUND

Molecularly imprinted electrochemical sensor for rapid detection of hydroxyproline as well as preparation and application of molecularly imprinted electrochemical sensor

The invention discloses a hydroxyproline rapid detection molecularly imprinted electrochemical sensor as well as preparation and application thereof, and relates to the field of quality safety monitoring of medicinal plants. The preparation method of the molecularly imprinted electrochemical sensor comprises the following steps: preparing the Fc-MWCNTs composite material, preparing the Fc-MWCNTs / GCE, and preparing the molecularly imprinted electrochemical sensor MIP-Fc-MWCNTs (at) GCE. According to the invention, MWCNTs with good conductivity and Fc which has good stability and oxidation-reduction property and is used as an excellent electron transfer medium are used as electrode substrate materials; and the Fc-MWCNTs and the MWCNTs are covalently bonded through an amide reaction to prepare the composite material Fc-MWCNTs which has excellent electron transfer medium characteristics, low potential reproducibility and strong stability and can remarkably improve the electron transfer rate between the electrode surface and an electrolyte. The modified composite material Fc-MWCNTs is modified on the surface of GCE, so that the molecularly imprinted electrochemical sensor MIP-Fc-MWCNTs (at) GCE with high sensitivity, high selective recognition and fast detection is constructed, and the molecularly imprinted electrochemical sensor is used for detecting an index component Hyp of cornu cervi pantotrichum.
Owner:LANZHOU FOCI PHARM CO LTD +1

Animal-derived composite fermented skin-tendering protein peptide and preparation method thereof

The invention belongs to the field of bioactive protein peptide materials, and provides an animal-derived composite fermented skin-tendering protein peptide and a preparation method thereof. According to the invention, bovine-derived collagen and fish-derived protein are subjected to synergistic fermentation to prepare a protein peptide core, and the outer surface of the protein peptide core is coated with an edible gelatin and chondroitin sulfate composite layer; the excellent performance that a small molecule peptide core with the molecular weight being 500-1500 Da, a stable coating layer with the coating rate being 80-99%, the glycine-proline-hydroxyproline sequence collagen peptide fragment accounting for 30-60% and the pH responsive swelling ratio being 1.5-3.0 are achieved, the technical problems that traditional protein peptide is poor in stability and low in bioavailability are solved, and the protein peptide has wide application value in the field of skin care products.
Owner:SHANDONG LONGBEI BIOTECHNOLOGY CO LTD

Oil-soluble glassine ester with anti-oxidation, firming and anti-wrinkle effects as well as preparation method and application of oil-soluble glassine ester

The invention relates to glassine ester as well as a preparation method and application thereof. The structural formula of the glassine ester is shown as a formula (I), each R1 is independently selected from hydrogen and-C (= O) R, and at least one R1 is-C (= O) R; r is selected from C7-C21 alkyl groups and C7-C21 unsaturated chain alkyl groups. The glassine ester has a remarkable DPPH free radical scavenging effect, can remarkably improve expression of elastin, hyaluronic acid and I-type collagen in cells, and has excellent effects of oxidation resistance, moisturizing and / or tightening and wrinkle resistance when being added into cosmetics as a functional component. # imgabs0 #
Owner:GUANGZHOU CONGEN PHARMATEC CO LTD

Method for improving astaxanthin produced by haematococcus pluvialis

The invention belongs to the field of industrial application of microalgae, and provides a method for improving astaxanthin produced by haematococcus pluvialis. Comprising the following steps: 1, culturing haematococcus pluvialis to a logarithmic phase; 2, the haematococcus pluvialis is diluted to a proper concentration, and a seed solution for producing astaxanthin from the haematococcus pluvialis is prepared; 3, respectively adding six pre-prepared inducers including creatine, glycine, 6-aminocaproic acid, glutamic acid, L-hydroxyproline and L-cysteine into the prepared haematococcus pluvialis liquid for induction; and 4, continuously filling sterile air into the haematococcus pluvialis liquid added with the inducer in a photobioreactor, culturing, and inducing haematococcus pluvialis cells to accumulate astaxanthin. The invention discloses a method for improving astaxanthin produced by haematococcus pluvialis. The haematococcus pluvialis can be promoted to accumulate a large amount of astaxanthin, and the production cycle of the astaxanthin is shortened. The method is easy to operate, high in efficiency, low in cost and completely suitable for industrial culture of haematococcus pluvialis.
Owner:TIANJIN UNIV OF SCI & TECH

Type I humanized collagen as well as preparation method and application thereof

The invention relates to the technical field of biological medicine, in particular to I-type humanized collagen as well as a preparation method and application thereof. The amino acid sequence of the type I humanized collagen prepared by the invention is shown as a sequence SEQ ID NO. 1 (HTGAWGKTVIEYKTTKTSRLVMGFXGPKGAA, wherein X is hydroxyproline). The invention also discloses a preparation method of the type I humanized collagen. The I-type humanized collagen contains essential amino acids and semi-essential amino acids of a human body, promotes proliferation of human skin fibroblasts, up-regulates expression of elastin, fibronectin and collagen I genes, and has the effects of interacting with endothelial cells and osteoblasts, promoting creeping and growth of the osteoblasts, and promoting the growth of the osteoblasts. And the interaction between osteoblasts and collagen is promoted. Therefore, the I-type humanized collagen can be widely applied to orthopedic sports materials and has application prospects in the fields of medical cosmetology and sports medicine materials.
Owner:CHANGCHUN SINOBIOMATERIALS CO LTD

Anti-wrinkle composition, application thereof and cosmetic

The invention belongs to the technical field of cosmetics, and provides an anti-wrinkle composition, application thereof and cosmetics. The composition provided by the invention comprises acetylated sodium hyaluronate and acetyl hydroxyproline, and the mass part ratio of the acetylated sodium hyaluronate to the acetyl hydroxyproline is (0.2-40): 1. In the composition provided by the invention, the acetylated sodium hyaluronate and the acetyl hydroxyproline have a synergistic anti-wrinkle effect, and the effect of the composition is obviously greater than the sum of the effects of the acetylated sodium hyaluronate and the acetyl hydroxyproline which are independently used in the aspect of promoting the synthesis of the fibroblast collagen I. When the composition with the synergistic anti-wrinkle effect provided by the invention is applied to preparation of cosmetics, the use amount of acetyl hydroxyproline can be reduced, so that the cost is reduced, and meanwhile, remarkable anti-wrinkle and anti-aging effects are obtained.
Owner:SHANGHAI HUARUI WANMEI BIOTECHNOLOGY CO LTD +1

Collagen peptide with hematopoietic activity and application thereof in collagen hydrolysate and product

The invention discloses an application of two collagen peptides with hematopoietic activity, a collagen hydrolysate containing the collagen peptides and a compound of the collagen peptides. The collagen peptides with hematopoietic activity, the collagen hydrolysate containing the collagen peptides and the compound of the collagen peptides comprise one or a combination of the following polypeptides: 1) a polypeptide of GSAGPpGATGFpGAAGR (p is hydroxyproline), and 2) a polypeptide of which the amino acid sequence is GAAGLpGPK (p is hydroxyproline). The invention also provides a preparation method and application of the collagen peptide with hematopoietic activity and the collagen hydrolysate containing the collagen peptide, the two collagen peptides with hematopoietic activity and the compound thereof have good hematopoietic activity and an effect of relieving hematopoietic inhibition, are non-toxic, can be easily used as functional factors to be added into various health-care foods, and have good health-care effects. Good market prospects are realized in medicine and food industries.
Owner:SHAN DONG DONG E E JIAO +1

Biologic enhancement formulation

Provided is an “all natural” biologic-enhancing beverage (BioBeverage), which contains, in addition to purified water, electrolytes, vitamins, anti-oxidants, micronutrients, natural fruit infusion, natural sweetener to improve taste, enhance GI Biome viability, provide antimicrobial benefits and reduce oxidative stress, Citicoline, to enhance brain / neurologic function, neurologic maintenance, repair and regeneration, CoQ10, to enhance cardiovascular energy and health, Hydroxyproline, to enhance connective tissue maintenance, repair and regeneration, and a niacinamide adenine dinucleotide (NAD+) precursor to promote overall health, including neurologic, cardiovascular and connective tissues maintenance and repair, and if present, reduce risks and symptoms of multiple neurodegenerative disorders by maintenance of healthy mitochondrial function.
Owner:HEH RES & DEV SERVICES INC

Anti-wrinkle composition based on microemulsion synergistic interaction and application

The invention discloses an anti-wrinkle composition based on micro-emulsion synergistic interaction and application, and belongs to the field of cosmetics, the anti-wrinkle composition comprises the following components by mass: 0.5-3 parts of a water-soluble chrysanthemum extract; 0.5-2 parts of an oil-soluble saussurea involucrata extract; 0.1 to 1 part of dipalmitoyl hydroxyproline; and 1 to 2 parts of tribehenyl PEG-20 esters. By combining a microemulsion technology, anti-wrinkle active matters can be dispersed into small particles which are more easily absorbed by skin, the anti-wrinkle active matters can be promoted to better exert effects, the product is made into a microemulsion particle size by pertinently designing and matching a formula system, the active components can be more easily absorbed by skin, and the anti-wrinkle effect can be improved. The effect of adding low amount of functional active matter to high amount of functional active matter is achieved, the production cost of manufacturers is reduced, and the anti-wrinkle effect is achieved from multiple dimensions.
Owner:SUZHOU DAIYIFEI BIOTECHNOLOGY CO LTD