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79results about How to "Reduce microbial count" patented technology

Ultraviolet-visible illumination fruit and vegetable fresh-keeping device and application thereof

The invention discloses an ultraviolet-visible illumination fruit and vegetable fresh-keeping device and application of the ultraviolet-visible illumination fruit. The ultraviolet-visible illumination fruit and vegetable fresh-keeping device comprises an illumination control system and an illumination internal environment, wherein the illumination control system is arranged on a control platform outside a box body, the illumination control system comprises a control keyboard, a high-precision dimming measuring and control instrument, an illuminance measuring and control instrument, a relative humidity measuring and control instrument and a temperature measuring and control instrument; and the illumination internal environment comprises an ultraviolet light source, an LED (Light Emitting Diode)(red, yellow, blue and green) and other monochromatic sources, and a matched sensor. According to the ultraviolet-visible illumination fruit and vegetable fresh-keeping device, by using an ultraviolet sterilization function and a specific visible light physiological accommodation function, rotting and ageing processes of fruits and vegetables are controlled from two aspects including pathology and physiology, microorganisms carried in the surfaces of the fruits and the vegetables are killed, and the quality and functional ingredients of the fruits and the vegetables are kept, and thus an ideal refreshing effect is achieved.
Owner:NAT ENG AN TECH RES CENT FOR PRESERVATION OF AGRI PROD TIANJIN

Cold fresh chicken compound freshness keeping agent

The present invention discloses a cold fresh chicken compound freshness keeping agent. Every 100 ml of the compound freshness keeping agent contains 0.7 grams of origanum vulgare essential oil, 0.15 grams of tea polyphenols, 0.03 grams of D-sodium isoascorbate, and the balance being ethanol having a volume concentration of 10%, and the above components are stirred by a heating magnetic stirrer at a moderate speed at 60 DEG C for 5 minutes. The slaughtered, cooled, disinfected, and washed and cleaned fresh chicken meat is classified, placed and soaked in the compound biological freshness keeping agent for 1 minute, and is taken out, drained at room temperature, packed using PE bags, and stored at 4 DEG C. By conducting sensory evaluation and detecting pH, volatile basic nitrogen (TVB-N) and the total number of colonies of chicken meat, using the compound biological freshness keeping agent to preserve the cold fresh chicken is found to be able to better delay the decay and deterioration of the cold fresh chicken, prevent microbial growth and reproduction, and significantly prolong the shelf life of cold fresh chicken by 5-6 days as compared with the conventional cold storage technology. The compound freshness keeping agent is safe and reliable to prepare, is simple and practicable, and has low cost and certain application and promotion values.
Owner:SHANGHAI OCEAN UNIV

Method for improving banana fruit wine appearance quality stability through membrane filtration

The invention discloses a method for improving banana fruit wine appearance quality stability through membrane filtration, which has the technical scheme that bananas are peeled, color protecting liquid is added for enzymolysis, fermentation liquid is regulated, the alcohol fermentation is carried out, the wine slag is separated, a ceramic membrane is used for filtration, and wine is bottled and stored. The method has the advantages that the quality of the banana fruit wine is improved, the appearance is clear and transparent, the transmission rate of the wine liquid reaches higher than 95 percent, simultaneously, the loss of the ethanol content and the mineral substance content in the wine liquid is reduced, the number of microbes in the fruit wine is reduced, the biological stability isimproved, the membrane separation has the characteristics of high separation efficiency, lower energy consumption, simple operation and the like, substances of thallus cells, macromolecular protein and the like can be effectively stopped, and the degerming rate reaches higher than 50 percent. Compared with the traditional high-temperature sterilization and chemical clarification method, the method has the advantages that the adverse influence on the flavor and nutrient components of the wine after the high-temperature sterilization can be avoided, in addition, the addition and reside problemsof external chemical substances can be avoided, and good application prospects are realized.
Owner:杨公明
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