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264 results about "Gardenia yellow" patented technology

New process for extracting high-purity gardenia yellow pigment by membrane separation and purification technology

The invention relates to a new process for extracting high-purity gardenia yellow pigment by a membrane separation and purification technology. The new process comprises processes of purified water leaching, crude separation and impurity removal, membrane separation and purification, and membrane concentration. After purified water extraction and ultrasonic assisted extraction, raw gardenia is separated by three centrifuges with different specifications and then obtained leaching liquor enters a membrane separation, purification and concentration system which consists of a microfiltration membrane (MF), an ultrafiltration membrane (UF), a nano-filtration membrane (NF) and a reverse osmosis membrane (RO), thus an OD value of the obtained gardenia yellow pigment can be controlled below 0.4 and color number can be increased to be more than 400. The finished product obtained by the process has no residual organic solvent and completely meets technical requirements for exporting to developed countries, including Europe and America, etc. as well as developed areas. The process is safe and clean in the whole production process, capable of realizing zero pollution and zero emission, has high environmental protection performance, and has advantages of greatly reducing energy consumption and lowering production cost due to the membrane concentration technology. The process further has advantages of simple process, stable product quality, high purity, etc.
Owner:广西山云生化科技股份有限公司

Nutritional yolk milk pudding and preparation method thereof

InactiveCN102450327AFull of nutritionImprove non-nutritiousMilk preparationIcing sugarYolk
The invention discloses nutritional yolk milk pudding and a preparation method thereof. The requirements of consumers who are glad to eat jelly foods are met, and the disadvantages that the conventional jelly food in which jelly is taken as a main ingredient has no nutrient components and is harmful to the physical health of eaters are overcome. The nutritional yolk milk pudding consists of milk, yolk, compound food gum, citric acid, gardenia yellow pigment and yolk essence according to the corresponding weight proportion. The production method comprises the following steps of: steaming the yolk, adding a small amount of milk, and mashing to obtain slurry; adding the milk into gum powder and powdered sugar and boiling to obtain a gum solution; and adding an obtained yolk liquid, the pigment, the essence and the citric acid into the hot gum solution, filling, sealing, sterilizing, and cooling to obtain the nutritional yolk milk pudding. The invention has the advantages that: the food gum is taken as a carrier, the milk and the yolk are added, and a jelly food with rich nutrition is provided; nutritional and health-care functions of the milk and the yolk are applied to the production of the jelly, so that the characteristic of no nutrition of the jelly is improved; the product can be eaten by crowds of various ages such as children, adults, elders and the like; and good flavor and quality of the product in shelf life are ensured by a proper process.
Owner:CHANGCHUN XINGAO FOOD

Preparation method of crocetin, gardenia yellow pigment and saffron pigment

The invention provides a method for efficiently separating crocetin from fruits of rubiaceous plants and gardenia (stenophyllous gardenia, spoonleaf gardenia, gardenia hainanensis, gardenia sootepensis and gardenia) plants, saffron and saffron tissue cultures. The crocetin can be prepared by the method, and meanwhile, the gardenia yellow pigment and the saffron pigment can be prepared. The method comprises the following steps: extracting the pigment of gardenia fruits (the saffron and the saffron tissue cultures) through acid water or directly extracting raw materials through alkaline water, then carrying out water liquid acidification, then extracting ethyl acetate to obtain a crocetin crude product, and recrystallizing the crude product through different solvents to obtain a crocetin pure product. The crocetin, the gardenia yellow pigment and the saffron pigment provided by the invention can be applied in preparing cardiovascular and cerebrovascular disease medicaments, gynecological disease medicaments, tumor adjuvant therapy medicaments and foods. The method of the invention has reasonable design, the crocetin, the gardenia yellow pigment and the saffron pigment can be obtained in large scales and have high yield, and the method is quite suitable for industrialized production.
Owner:HANGZHOU FAHE MEDICINE SCI & TECH

Industrial gardenia yellow pigment purification device and method for extracting gardenia yellow pigment

The invention discloses an industrial gardenia yellow pigment purification device and a method for extracting the gardenia yellow pigment. The device comprises an elution column, a vacuum recycling tank, a condenser, a dehydration column and a solvent heater, wherein the elution column, the vacuum recycling tank, the condenser, the dehydration column and the solvent heater are sequentially communicated with one another by virtue of pipelines; a sampling pipe is communicated with a pipeline between the elution column and the vacuum recycling tank; a sampling valve is arranged on the sampling pipe; a vacuum pump is arranged at the outlet of the dehydration column; a collection pipe is communicated with a pipeline between the dehydration column and the solvent heater; a collection valve is arranged on the collection pipe; the dehydration column is filled with dehydrating agents; and a water bath heating jacket is arranged outside the vacuum recycling tank in a sleeving manner. The method comprises the step of purifying gardenia yellow pigment from fine powder of solid gardenia yellow pigments containing lots of impurities. The device is simple in structure and convenient to use and is suitable for industrial production. The method is simple, low in cost, clean and environmentally friendly. The gardenia yellow pigment obtained by using the method is small in losses, high in purity and high in color value.
Owner:HUBEI UNIV FOR NATITIES

Modified gardenia yellow and method for dyeing cationic modified cellulose fabric by using modified gardenia yellow

The invention provides modified gardenia yellow and a method for dyeing cationic modified cellulose fabric by using modified gardenia yellow. The preparation method of the modified natural dye gardenia yellow comprises the following steps: adding natural dye gardenia yellow, sodium hydroxide and alcohol into a reaction container, performing reflux condensation, heating the reaction container from the room temperature to a predetermined temperature, preserving the heat, and obtaining a product solution; and after the reaction is ended, cooling the product solution to the room temperature, removing the alcohol, drying, and obtaining the modified natural dye gardenia yellow. The method for dyeing the cationic modified cellulose fabric by adopting the modified natural dye gardenia yellow comprises the following steps: placing the modified cellulose fabric into dye liquor containing modified natural dye gardenia yellow, dyeing at the room temperature, heating to a predetermined temperature, preserving the heat, and dyeing; and after the dyeing is ended, taking out the cellulose fabric, washing with water, and drying to obtain a dye finished product. The technical scheme is simple in operation, low in cost, high in efficiency and capable of realizing the large-scale production.
Owner:GUANGDONG ESQUEL TEXTILES CO LTD +1

Multistage aqueous two-phase synchronous separation for geniposide and gardenia yellow

The invention relates to an extraction and separation method for geniposide and gardenia yellow with high yield and high purity. The invention provides a highly-efficient mild aqueous two-phase technology to realize synchronous separation and purification of the geniposide and the gardenia yellow. The method comprises the following steps: preparing gardenia extract by using gardenia fruit powder as a raw material, then subjecting the obtained gardenia extract to extraction and separation through a multistage low-molecular alcohol-salt aqueous two-phase system, carrying out concentration and drying so as to obtain primary geniposide and gardenia yellow crystals, and carrying out recrystallization so as to obtain geniposide crystal with purity of more than 98.5% and gardenia yellow crystal with a color value of 535. The method provided by the invention has the advantages of simple operation, greenness, high efficiency, economy, time conversation and facilitation to enlargement. Meanwhile, the method initiates application of an aqueous two-phase extraction technology in synchronous separation of the gardenia yellow and the geniposide, and improves separation and purification efficiencies of the geniposide and the gardenia yellow.
Owner:SHAOYANG UNIV

Method for separating and purifying geniposide by using isopropanol-salt double-aqueous-phase system

The invention relates to a method for separating and purifying geniposide by using an isopropanol-salt double-aqueous-phase system. The invention provides an efficient and gentle method for separating and purifying geniposide by using a double-aqueous-phase technique. The method comprises the following steps: producing a waste gardenia yellow liquid from a cape jasmine fruit raw material, performing extraction separation and concentration drying on the waste gardenia yellow liquid by using the isopropanol-salt double-aqueous-phase system, thereby obtaining a primary geniposide crystal product, and further recrystallizing, thereby obtaining geniposide crystal of which the purity is greater than 98.5%. By adopting the method, a natural geniposide product with high purity is separated and purified from a medical resource for both food and medicine. The method is simple and convenient to operate, environmentally friendly, high in efficiency, economical, time-saving and easy to amplify. The method is not only used for widening the double-aqueous-phase system for extracting geniposide and improving the efficiency in separating and purifying geniposide, but also is used for extracting and producing other pigments.
Owner:SHAOYANG UNIV
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