37results about How to "Guarantee green safety" patented technology

The invention relates to a sustained-release antioxidant packaging film for food and a preparation method thereof. A film substrate of the packaging film is formed by blending 50-80 parts by weight of HDPE (High-Density Polyethylene) and 20-50 parts by weight of EVA (Ethylene-Vinyl Acetate Copolymer) while adding 5-12.5 parts by weight of diatomite and 0.75-1.25 parts by weight of quercetin. The preparation method comprises the steps: (1) uniformly mixing an HDPE master batch and an EVA master batch, and plasticating; (2) sprinkling diatomite on a roller-wrapped blending thin sheet, plasticating for 6-8 minutes, sprinkling quercetin, and plasticating for 6-8 minutes; (3) carrying out roller release, tiling on a flat plate in single layer, cooling, and then cutting; (4) carrying out hot pressing; (5) carrying out pressure forming, thereby obtaining the packaging film. The packaging film disclosed by the invention has sustained release antioxidant performance, so that the effective utilization ratio of an antioxidant can be increased obviously; meanwhile, the packaging film has good mechanical properties and dampness and oxygen barrier performance; the condition that the packaging film prepared by the method disclosed by the invention has a higher antioxidant retention ratio can be guaranteed.

The invention discloses a sugar-making process based on membrane clarification and multiple co-production. After the mixed juice is physically removed, it is concentrated for the first time to 18-20 o Bx, the concentrated mixed juice is then physically clarified by a ceramic membrane, and the clear juice is concentrated for the second time to 55-65 o Syrup of Bx, white granulated sugar and low sucrose liquid sugar are produced according to the conventional white granulated sugar cooking process; sugarcane raw water obtained from the first and second concentration processes is filtered by activated carbon and reverse osmosis membrane to make sugarcane plant water; ceramic membrane filtration Finally, the concentrated liquid containing impurities is clarified by centrifugation and mixed with molasses to produce brown sugar. Based on the membrane clarification process without adding chemical additives, the high-value utilization of by-products can extend the product chain and increase economic benefits. The first concentration reduces the amount of mixed juice for subsequent membrane clarification, thereby reducing membrane clarification Investment in equipment reduces production costs and greatly improves the economic benefits of sugarcane sugar-making enterprises.

A processing method of a sugarcane juice solid beverage comprises the following steps: filtering a sugarcane juice by allowing the sugarcane juice to sequentially go through a drum sieve and a curved sieve in order to obtain a coarse filtration sugarcane juice; heating the coarse filtration sugarcane juice to 90-100DEG C, maintaining the temperature for 1-2min, and rapidly cooling to obtain an enzyme killed sugarcane juice; carrying out ultrafiltration clarification on the enzyme killed sugarcane juice by adopting a multistage ceramic membrane ultrafiltration system with the membrane aperture of 0.02-0.10[mu]m; carrying out evaporative concentration on the clarified sugarcane juice to obtain a sugarcane juice concentrate; sending the sugarcane juice concentrate to a vacuum sugar boiling pan, and carrying out further evaporative concentration to obtain a massecuite; and stirring the massecuite until caster sugar appears, pouring the massecuite into a die, cooling to room temperature, cutting to form blocks, drying, and packaging to obtain a finished product. The sugarcane juice solid beverage prepared in the invention can be instantly drunk after dissolution in hot water, and the dissolved solid beverage has cleared and transparent color, rich fragrance and sweet and tasty taste, and well maintains the original nutritional components and flavor substances of sugarcane.

The invention discloses a preparation method of Eucommia ulmoides seed oil microemulsion. The Eucommia ulmoides seed oil microemulsion prepared by the method uses biosurfactant and eucommia ulmoides seed oil prepared by aqueous enzymatic method as main raw materials, and co-surfactant, emulsion , Water as auxiliary material, prepared by phase inversion emulsification method. The microemulsion prepared by the method not only solves the problem that the eucommia seed oil is not easy to store due to the high content of unsaturated fatty acids, but also reduces the application of chemical surfactants, and has green and safe characteristics. Simultaneously, the dried lyophilized powder of the eucommia seed oil microemulsion has stable properties, high encapsulation rate and wide application range.

The invention discloses a production process of poly-crystal rocky candy. The production process comprises the following six steps: by taking first-grade white sugar as a raw material, dissolving the sugar, micro-filtering and clarifying, desalting and decolorizing by using ion exchange resin, concentrating in vacuum, charging seeds for crystallization, drying and packaging to produce the poly-crystal rocky candy. The poly-crystal rocky candy produced by the method disclosed by the invention is sweet and delicious in taste and white and transparent in color and luster; no sodium hydrosulfite is added for color protection during the overall production, so the product is environmental friendly and safe; the crystallization rate of the rocky candy is above 95%; the problem of low crystallization rate during production of the poly-crystal rocky candy for a long time is solved.

A method for producing sugarcane concentrated juice and sugarcane drinking water in parallel with multi-stage membranes. The steps are as follows: sugarcane is blanched to kill enzymes, squeezed to extract juice, and coarsely filtered to obtain coarsely filtered sugarcane juice; the coarsely filtered sugarcane juice is passed through the first ceramic After membrane ultrafiltration clarification, sugarcane clarified juice is obtained; sugarcane clarified juice is concentrated by organic nanofiltration membrane to obtain nanofiltration clear liquid and nanofiltration concentrated liquid; nanofiltration concentrated liquid is sterilized by second ceramic membrane ultrafiltration and aseptic filling The concentrated sugarcane juice is obtained; the nanofiltration clear liquid is purified by an organic reverse osmosis membrane to obtain a reverse osmosis clear liquid; the reverse osmosis clear liquid is subjected to ultrafiltration and aseptic filling by a third ceramic membrane to obtain sugarcane drinking water. Based on the integration of membrane process separation, concentration and cold sterilization, the invention uses sugarcane as a raw material to produce high-quality sugarcane concentrated juice and sugarcane drinking water in parallel, which is beneficial to product optimization and upgrading and comprehensive utilization of sugarcane resources.

The invention discloses a processing device for a sugarcane juice solid drink. The processing device comprises sugarcane juice rough filtration equipment, a first heat exchanger, a second heat exchanger, multistage ceramic membrane ultrafiltration equipment, falling-film three-effect vacuum evaporation equipment, vacuum concentration equipment and drying-forming equipment, wherein the sugarcane juice rough filtration equipment comprises a drum sieve, a curved sieve and a roughly filtrated sugarcane juice storage box; a clarified sugarcane juice box is connected between the multistage ceramic membrane ultrafiltration equipment and the falling-film three-effect vacuum evaporation equipment; the falling-film three-effect vacuum evaporation equipment comprises a falling-film first-effect vacuum evaporation tank, a falling-film second-effect vacuum evaporation tank and a falling-film third-effect vacuum evaporation tank; a sugarcane slurry box is connected between the falling-film three-effect vacuum evaporation equipment and the vacuum concentration equipment; the vacuum concentration equipment comprises a sugarcane boiling tank and a water jet condenser. The sugarcane juice solid drink prepared by the processing device disclosed by the invention can be drunk after being dissolved with hot water, is clear and transparent in colour, strong in fragrance, and fresh, sweet and delicious in taste, as well as keeps the original nutritional ingredients and flavour substances of the sugarcane well.

The invention discloses a preparation method of concentrated grape juice. The method comprises the steps of preparing grape primary pulp, performing primary filtering and primary sterilization, cooling for reducing the temperature, carrying out enzymatic hydrolysis and clarification, and performing secondary filtering, vacuum concentration, secondary sterilization and filling. The preparation process is simple, and no any chemical reagent and food additive are added in a preparation process, so that the nutrition and flavor of grapes are kept to the maximum extent, and the green and safe properties of the food are effectively ensured; and besides, the clear grape juice after enzymatic hydrolysis, clarification and filtering has a color value of more than 90%, a turbidity of less than 2NTU, a light transmittance of more than 96%, a sugar content of 3.5-4% and an acidity degree of 35-45%; the solid content of the concentrated grape juice after vacuum concentration is 40-60%; and the concentrated grape juice has fragrance and taste of grapes, has no peculiar smell, is clear and transparent, can be stored for a long time, has no sediments and suspended solids during storage, has strong product stability and can completely meet the taste requirement of mass consumers.