41results about How to "The extraction process is environmentally friendly" patented technology

The invention belongs to the technical field of separation and extraction of amino acid and discloses a clean production process of L-glutamine by adopting a fermentation method. The clean production process comprises the steps of filtering, flocculating, performing isoelectric operation, concentrating, performing ultrafiltration, drying and the like, and finally, an L-glutamine product is obtained. The clean production process disclosed by the invention is operated according to the steps, so that the yield and the purity of the L-glutamine product are improved, the problem about environment caused by fermented industrial wastewater and waste residues is effectively solved, clean production of the L-glutamine by adopting the fermentation method is realized, and two purposes by one process are achieved.

The invention belongs to the technical field of pigment extraction from natural raw materials, and in particular relates to a method for extracting pigment by a plant ash method, comprising the following steps: step 1: treatment of pomegranate peel, pomegranate peel is washed, pulverized and dried for use; step 2: plant ash solution To prepare, weigh 6-30% of the plant ash by weight of pomegranate rind powder, add deionized water to the ash containing plant ash according to the ratio of the solid-liquid ratio of pomegranate peel powder to deionized water is 1:50-200 (g:ml). In the container; step 3: extraction of pigment, adding pomegranate peel powder into the plant ash solution and stirring evenly, placing the container in a constant temperature water bath to extract the pigment to obtain an extraction solution, concentrating and spray drying to obtain pomegranate peel pigment, using plant ash The pomegranate peel pigment is extracted by the method, and the mass percentage of the pigment extraction is 4.2%-21.0%. The extraction process is environmentally friendly and pollution-free, the operation method is simple, and the cost of extracting the pomegranate peel pigment is low.

The invention discloses a method for extracting podocar-pusflavone from juniper berry meal. The method comprises the steps that reflux extraction is performed on the juniper berry meal through an ethanol solution with the volume fraction of 70%-80% to obtain an extracting solution, and the extracting solution is concentrated under reduced pressure to obtain concentrate; the concentrate is diluted by adding water, solid-liquid separation is performed after standing is performed, and supernatant liquor is taken; the ethanol degree of the supernatant liquor is regulated to be 20%-30% through ethanol, solid-liquid separation is performed after standing is performed, and precipitates are taken; the precipitates are dissolved with a diluted hydrochloric acid solution and then added into a macroporous resin column, elution is performed with water until the pH value of effluent is neutral, then desorption is performed with the ethanol solution, a desorption solution is collected, and the desorption solution is concentrated under reduced pressure and dried to obtain a juniper berry meal extract. According to the method, the steps are simple and convenient, operation is easy, and the method is suitable for industrialized production; due to the fact that only water and ethanol are adopted as the solvent, not only is the cost greatly reduced, but also no stimulation or toxicity is basically generated to operating personnel and the environment; the content of podocar-pusflavone in the juniper berry meal extract reaches up to 30%-40%, and the extraction efficiency is high.

The invention discloses a sun-resistant gelata prepared from oyster polysaccharide. The sun-resistant gelata is characterized by comprising the following raw materials in parts by weight: 2-5 parts of oyster polysaccharide, 0.1-1 part of goldthread polysaccharide, 0.01-0.05 part of azone, 50-80 parts of glycerinum, 50-80 parts of 1, 2-propylene glycol, 60-90 parts of poloxamer 407 and 100-400 parts of water. The sun-resistant gelata prepared from oyster polysaccharide, disclosed by the invention, has sun-resistant and moisturizing functions, is sun-resistant and protects the skin simultaneously, eliminates free radicals, and promotes cellular regeneration of the skin.

The invention provides a method for preparing a camellia extract and its application. The method comprises the following steps: A. selecting fresh, non-damaged and disease-free camellias, and drying them by adopting a refraction window drying technique to obtain dried camellia products; B. After the dried product of camellia is ultrafinely pulverized and sieved by airflow, it is added into a quaternary system deep eutectic solvent for ultrasonic extraction to obtain an extraction mixture; C. Mix the extraction mixture with deionized water, adjust the pH, and then add enzymes for enzyme solution; D, after enzymolysis, place it for a certain period of time, and then filter to obtain the camellia extract. The method adopts the refraction window drying technology for drying, ultrafine pulverization, and uses non-toxic deep eutectic solvent as the extraction agent. The production process is simple, efficient, safe and green; it overcomes the need for a large amount of toxic organic solvents and Complex column separation process. The obtained extract has skin repairing effect, antibacterial effect, strong antioxidant capacity and is safe and non-irritating.

A method for extracting fructus momordicae tetranuclear-triterpene is carried out by leaching flavine from fresh fructus momordicae skin by warm water, heating gelatinous protein in fruit cell, solidifying, crushing, leaching by 60-90 deg. C, de-bonding by pectase, filtering, concentrating and drying to obtain final product. Crude products containing tetranuclear-triterpene 43% 300-350g are extracted from fresh fruits 10000g. It's pure, safe, efficient, simple and cheap. It has no environmental pollution. The pumace can be made into feed.

The invention discloses a preparation method and application of anti-oxidation poly-natural polyphenol nanomaterials, comprising: dissolving natural polyphenols to obtain a natural polyphenol solution, mixing with horseradish peroxidase to obtain a reaction solution, and subjecting the reaction solution to Ultrasonic treatment, the ultrasonic frequency is 40KHz, the ultrasonic power is 400-600W, and the ultrasonic treatment works in the pulse mode of 1.6s on / 0.4s off; at the same time, the reaction temperature is controlled at 45-65°C, and after 0.5-12 hours of reaction, the The reaction solution is centrifuged and washed to obtain poly-natural polyphenol nanomaterials. The invention is simple and convenient, adjustable and controllable, has strong practicability, and has universal applicability to macromolecularization of various natural polyphenol small molecule compounds. The polynatural polyphenol nanomaterial prepared by the invention has excellent oxidation resistance, can effectively exert excellent antioxidant effects in vitro and in cell biology, and can also effectively accelerate wound healing.

The invention discloses a bacterial cellulose-based wound dressing of sericin and peppermint oil nanoparticles and a preparation method thereof. The wound dressing is in the form of a composite film, and the composite film is composed of bacterial cellulose, sericin and peppermint oil; bacterial cellulose It is a 3D mesh biopolymer synthesized by microbial fermentation. It has good air permeability, water permeability and water holding performance, and excellent mechanical properties, which meets the basic requirements of wound dressings. Sericin is a natural hydrophilic protein in silkworm cocoons, which has the potential to be a new type of wound dressing. It has cytoprotective and mitogenic effects on fibroblasts and keratinocytes, and can promote fiber proliferation, making it beneficial to skin development. Attractive, in addition, sericin has good hydrophilicity, biocompatibility, biodegradability and good affinity for biomolecules, making the excellent moisture retention of sericin beneficial to accelerate wound healing.

The invention discloses an electronic cigarette liquid rich in biological active polysaccharide and a preparation method of the electronic cigarette liquid. The electronic cigarette liquid is mainly formed by the following raw materials in parts by weight: 50-70 parts of propylene glycol, 5-15 parts of glycerin, 5-10 parts of deionized water, 5-15 parts of natural biological active polysaccharide extracts, 3-10 parts of tobacco extracts, 1-5 parts of tobacco flavor, 1-3 parts of thickener and 1-3 parts of antioxidant. The electronic cigarette liquid disclosed by the invention is suitable for being smoked in an electronic atomizing way and is formed by refining the tobacco extracts and the natural biological active polysaccharide extracts, an immune function of a human body is also widely regulated while the feeling of smoking a cigarette is obtained by a consumer, and a certain healthcare function is obtained.

The invention discloses an extraction method of polysaccharide with activities of kidney warming and Yang tonifying from Aspongopus chinensis Dallas insects of Pentatomidae and application of the polysaccharide. The extraction method comprises the following steps: (1) drying Aspongopus chinensis Dallas insect bodies, performing pulverization, performing reflux extraction with petroleum ether, andconducting filtration liquid-solid separation so as to obtain drug residues with removal of grease; (2) evaporating the drug residues, performing reflux extraction with distilled water, performing filtration, combining the filtrate, and performing concentration so as to obtain total water extract; (3) adding distilled water to the total water extract for slight dilution, performing precipitation on polysaccharide with an alcohol solution, performing stirring while the alcohol solution is added, and performing still standing and filtration so as to obtain an insect polysaccharide alcohol precipitate; and (4) adding water to the insect polysaccharide alcohol precipitate for dilution and dissolution, performing chromatography separation and purification by using a DEAE-Sephadex ged cellulosecolumn, and performing rinsing with distilled water and a sodium chloride solution so as to obtain the Aspongopus chinensis Dallas polysaccharide. The invention also relates to the application of thepolysaccharide in preparation of drugs for treating or preventing Yang deficiency, impotence and erectile dysfunctions, the method is easy has simple and convenient operation, and the obtained polysaccharide compound with a purity of up to 95% has strong effects of kidney warming, Yang tonifying, fatigue resistance and body immunity recovery.

The invention discloses a collagen fiber capable of being directly used for spinning and dermal fiber leather prepared by the same. The collagen fiber is obtained by utilizing the strong effect of a polar solvent rich in hydroxyl groups and the combination of an ultrasonic treatment mode to achieve dissociation of intermolecular high-crystallized hydrogen bonds on the conditions of great mildness, obtaining raw material loosed in structure, performing drum treatment softening, liquid fiber separation and fiber drying, and then performing treatment on the dried collagen fiber in a single fiber state in combination with electrical impulse of an appropriate strength on the conditions of nitrogen protection. The preparation process is clean and free of pollution, and the manufactured collagen fiber can be directly spun through an existing spinning process without needing graft modification or compounding.

The invention discloses an environment-friendly blue pigment extracting technology and belongs to the technical field of microorganism products. The acid precipitation, alcohol precipitation and ultrafiltration are combined, and the extracting technology is suitable for blue pigment separation. The technology is environmentally friendly, easy and convenient to implement and effective. Ethyl alcohol consumption can be greatly lowered, ethyl alcohol recycle is convenient, a part of protein in the pigment can be removed, the pigment quality is improved, pigment preservation is facilitated, and influence on the environment is small.