80results about How to "Reduce pigment" patented technology

The invention discloses a novel method for producing high molecular weight sodium hyaluronate (HA-Na) with amino acid complex liquid as a nitrogen source through fermentation. In the method for producing the high molecular weight sodium hyaluronate, provided by the invention, yeast cream or yeast powder is replaced with the amino acid complex liquid as a fermentation nitrogen source of streptococcus zooepidemicus. The HA-Na with molecular weight of 2.2*10<6>D is obtained through control of a fermentation process. When the method is applied to industrial production, on the one hand, contents of hetero-protein and pigment in fermentation liquid can be effectively reduced, the step of subsequent HA-Na extraction is decreased, and the physical damage of the molecular weight of HA-Na in the fermentation liquid in the extraction process is reduced; on the other hand, the HA-Na production cost can be lowered, and the novel method has higher industrial application value. The HA-Na produced by the method has the molecular weight of 2.0-2.2*10<6>D, the alduronic acid content of 42.4-43.5%, the intrinsic viscosity of 3,064-3,115 and the protein content of 0.1%.

The invention discloses a rhodiola crenulata eye cream with whitening and anti-wrinkle effects. The rhodiola crenulata eye cream is mainly prepared from rhodiola crenulata root extract, black tea extract, coix seed extract, honeysuckle flower extract and corresponding adjuvants. Rhodiola crenulata can nourish and moisturize skin and keep constant moisture and elasticity of the skin and has anti-oxidation and whitening functions. Known from Compendium of Materia Medica, coix seeds have the functions of 'nourishing facial appearance and keeping youth', whitening and removing freckles, contracting pores, excreting water and slimming bodies. Black tea can moisturize skin, promote blood circulation and activate cells. Honeysuckle flower, also named lonicera japonica, can improve the water keeping capability of the skin and form a natural water keeping screen. The rhodiola crenulata eye cream is prepared from rhodiola crenulata serving as 'monarch', coix seeds serving as 'minister', black tea serving as 'assistant' and honeysuckle flower serving as 'guide' under the support of adjuvants. The rhodiola crenulata eye cream can promote skin metabolism, enhance skin activity, reduce epidermal pigmentation and resist against oxidation and removing oxygen free radicals; and the rhodiola crenulata eye cream is fine and smooth, has certain whitening, moisturizing and anti-wrinkle effects andprevents generation of thin wrinkles near eyes.

The invention belongs to the field of environmental function material preparation and pollutant treatment and relates to a preparation method of bamboo nanocellulose/reduced graphene oxide composite carbon aerogel. The preparation method comprises the steps of firstly adopting bamboo as a raw material, preparing the nanocellulose through a peroxide pretreatment method and an ultrasonic stripping method; inducing nanocellulose and graphene oxide solution gelatinization through ethylenediamine to prepare the bamboo nanocellulose/graphene oxide aerogel; and washing to remove residual ethylenediamine and obtaining low-density, hydrophobic, porous and flame-retardant bamboo nanocellulose/reduced graphene oxide composite carbon aerogel by combining a freeze drying method and a high-temperature pyrolysis method. The material has high adsorption capacity on oil and organic solvent pollutants. By adopting cheap and renewable bamboo as the raw material, the prepared composite carbon aerogel material is excellent in performance and suitable for large-scale production.

The present invention is directed to a dry cleansing cloth that comprises at least one personal care composition imparted to the cloth, wherein the composition acts as a visual indicator of the compositions depletion with each use, eventually signaling the consumer for the need of a replacement cloth. Accordingly, the cloth of the present invention may be any suitable limited use substrate, including wovens, nonwovens, films, and combinations thereof. Preferably, the limited use cloth comprises a nonwoven substrate, wherein the nonwoven substrates may include, but are not limited to airlaid fabrics, wetlaid fabrics, spunlace fabrics, spunbond fabrics, meltblown fabrics, coform fabrics, entangled spunbond fabrics, and combinations thereof.

Aiming to provide an anti-acne skin care product characterized by good stability, small irritation and applicability to sensitive skin, the invention discloses a skin care product with soothing and anti-acne efficacy. The skin care product comprises an active component and a substrate, and the active component includes the following components by mass percentage: 0.5-2% of gellan gum, 0.3-2.5% of sodium shale oil sulfonate, 0.1-1% of glycerophosphoinositol choline, and 0.5-3% of acne removal agent, wherein the acne removal agent is composed of capryloyl glycine, capryloyl salicylic acid, tocopheryl phosphate, a Chinese trumpet creeper extract, matrine and pyridoxine in a mass ratio of 1:1.5:1:2:1:1. The skin care product belongs to the field of cosmetics.

The invention belongs to the biological and chemical engineering fields, and particularly discloses a production method for crystalline tagatose. The method comprises the following steps: using lactose as a raw material; dissolving the lactose; hydrolyzing by acidic lactase; leaching and separating by a simulated moving bed; enabling the content of tagatose to reach up to 75% by only using calcium oxide as an isomerizing agent and phosphoric acid or CO2 as neutralization acid; and finally separating, evaporating and crystallizing the tagatose by the simulated moving bed. According to the production method for the crystalline tagatose, the condition of separating and the optimal condition of crystallizing by the simulated moving bed are determined; the purity of the obtained product reaches more than 98.5%, and the yield is over 40; and the cost and pollution are low, and the method meets the condition of industrialization production.

A disclosed dyeing and finishing method for linen for a child's vest comprises the following steps: preparing original cloth, singeing and rolling with an oxalic acid solution, desizing, scouring, performing chlorine bleaching, mercerizing, performing pad dyeing, softening, tentering, and pre-shrinking. According to the method, the fabric needs scouring for further removing residual impurities after being subjected to desizing, and thus the fabric obtain good water-absorbing property and certain whiteness, and is beneficial for dyeing and other post processing.

The invention provides a hericium erinaceus large-molecular polysaccharide and a preparation method thereof. The hericium erinaceus large-molecular polysaccharide is prepared by virtue of water extraction, alcohol precipitation, refrigeration and dissolution. The hericium erinaceus large-molecular polysaccharide provided by the invention has the molecular weight more than 1 million, is few in pigment and has polysaccharide content which is greatly increased by more than 80%; the hericium erinaceus large-molecular polysaccharide provided by the invention plays an obviously promotion role on an RAW264.7 macrophage cell line in releasing NO, thereby enhancing the immunity and anti-tumor capacity of an organism.

The invention discloses a saccharifying enzyme agent and making method and application with reserving number at CGMCC No.1818 for high-saccharifying enzyme aspergillus niger mutant IN7-31, which is characterized by the following: improving starch utilizing rate effectively; establishing new solid and liquid ferment method to produce saccharifying enzyme agent with enzyme activity at 7000-12000 unit/g (mg/h) as solid saccharifying enzyme agent and 2200-4200 unit/ml as liquid saccharifying enzyme agent.

The invention provides a health-care capsule for expelling chloasma and a preparation method thereof. The health-care capsule for expelling chloasma is a capsule aesthetic health-care product which is prepared by mixing three pure natural raw materials, namely, pearl powder, a grape seed extract and aloe normal juice spray dried powder with an aesthetic health-care function, with two organic matters, namely, vitamin C and vitamin E which are essential for human bodies, according to the formula ratio, and further screening, mixing, filling, polishing, checking the quality and the like. The health-care capsule for expelling chloasma is prepared from natural raw materials, is free of toxic and side effect, safe, reliable, convenient to use and applicable to most people with chloasma, and has a good effect on expelling chloasma; and meanwhile the human body circulation is adjusted and improved, and the health-care capsule is an ideal aesthetic health-care product.

The invention relates to a method for extracting ricinus communis oil by using an aqueous enzymatic method. The method comprises the following steps of: (1) crushing and soaking; (2) carrying out enzyme reaction; and (3) carrying out filtration and centrifugal separation. The invention also relates to a device for extracting the ricinus communis oil by using the aqueous enzymatic method. The method and the device have the advantages that the process is simple and convenient, the equipment is simple, operating conditions are mild, the extracting temperature is low, organic solvents are not required for being utilized to assist extraction, fat and protein resources in ricinus communis seeds can be comprehensively utilized, and the oil yield and fat quality of the ricinus communis seeds are improved.

The invention discloses a preparation method of compound polysaccharide consisting of schizophyllum commune exopolysaccharide and oat polysaccharide. The method comprises the following steps of: inoculating schizophyllum commune on a PDA (potato dextrose agar) plating medium to perform rejuvenation and activation cultivation to obtain a plating strain; inoculating the plating strain to a seed medium, and culturing to obtain a primary strain; inoculating the primary strain in the seed medium, and culturing to obtain a secondary strain; inoculating the secondary strain on a basic medium and fermenting to obtain fermented mash; and extracting and purifying the fermented mash to obtain the compound polysaccharide, wherein the seed medium comprises the following components in 1 kilogram of seed medium: 50g of glucose, 5g of monopotassium phosphate, 2.4g of magnesium sulfate, 3g of yeast extract, and the balance of tap water; and the asic medium comprises the following components in 1 kilogram of basic medium: 50g of glucose, 5g of monopotassium phosphate, 2.4g of magnesium sulfate, 4.5g of beef extract, 3g of calcium carbonate, 5g of oat bran and the balance of tap water.

The invention belongs to the technical field of biological separation, and particularly relates to a decolorizing column for a citric acid solution and an application of the decolorizing column. The invention discloses the decolorizing column; and the decolorizing column is filled with quartz sand, granular activated carbon, decolorizing resin and quartz sand from the bottom of the column to the top of the column. The invention also discloses a preparation method of the above decolorizing column and a method for decolorizing the citric acid solution by utilizing the decolorizing column. The decolorizing column provided by the invention combines the advantages of strong ability of the decolorizing resin for adsorbing a macromolecular pigment and strong ability of the granular activated carbon for adsorbing a small molecular pigment, can remove a pigment in the citric acid solution more thoroughly, and can obtain a solution with very ideal light transmittance after the citric acid solution passes through the decolorizing column; and the method provided by the invention not only effectively reduces the pigment contained in the citric acid solution, but also greatly reduces a use number of the decolorizing column, reduces a use amount of acids and alkalis, reduces waste-water discharge, and reduces production costs.

The invention provides a threonine fermentation medium and a clean production process of threonine; the threonine fermentation medium is free of corn steep liquor and yeast powder; substitution is achieved by adding various amino acids, nucleotide and trace elements; the threonine fermentation medium is used to ferment threonine clear liquor, sugar-acid conversion rate and extracting yield are increased, and threonine can be cleanly produced with very excellent effect; after 26 hours of fermentation, the yield of threonine reaches 128.6 g/L, froth is lessened during fermentation, the usage of Pao Di (a defoaming agent) is reduced, stirring output power is increased, the concentration of acetic acid in fermentation broth is decreased from 12 g/L to 3 g/L, pigments and ash content in the medium are decreased, concentration times of the fermentation broth during concentrative crystallization is increased, the volume of crystal mother liquor is decreased from 8% of the original process to 3%, the yield is increased from 82% to 94%, sugar-acid conversion rate is increased from 56% to 59%, the product purity is greater than 99.2%, and the product color and quality are improved greatly.

The invention discloses a method of rapidly preparing high-purity naringin from fresh pomelo young fruit. The method is characterized by comprising the following steps of: step (1) collecting young fruit; step (2) grinding; step (3) extracting; step (4) filtering; step (5) removing impurities by using a ceramic membrane system; (6) adding acid for crystallization; and step (7) filtering and drying. The method of preparing the naringin from the fresh pomelo young fruit is fast, efficient, low in cost, simple in process, convenient in operation, environmentally-friendly and efficient.