A system for a UV germicidal treatment, which enables a germicidal treatment of opaque liquids utilizing UV-C light, primarily in the wavelength between 180 nm to 300 nm. A surveillance system to include into a system capable of germicidal treatment of opaque liquids, such as highly opaque liquids sensitive to UV overexposure.

An intelligent heat-preserving pot cover includes a cover body, a top portion of the cover body is connected with a temperature control body, a ventilation hood is arranged between the cover body and the temperature control body. A through hole is arranged at the top portion of the cover body, the temperature control body is provided with a heating tube and an ultraviolet lamp tube via a mounting column passing through the through hole. A water tank is arranged in the temperature control body, and a spray pipe is led out of the water tank and passes through the through hole. The temperature control body is provided with a temperature sensor, a humidity sensor and a controller, and the controller is configured for controlling the heating tube, the ultraviolet lamp tube and the spray pipe to work according to data of the temperature sensor and the humidity sensor.

A food processing apparatus includes: a container that includes a space for accommodating a food item; a catalyst film that includes an activation surface in contact with the space; and a light source that is disposed closer to a principal surface of the catalyst film than to the activation surface in a thickness direction of the catalyst film, and emits ultraviolet light toward the catalyst film. The principal surface is on an opposite side of the catalyst film with respect to the activation surface. The catalyst film includes a surface layer including the activation surface and an absorption layer including the principal surface. The absorption layer contains an ultraviolet-light absorbing particle that absorbs a portion of the ultraviolet light.

The invention relates to a method and a device for treating foods and/or containers for holding foods. The foods and/or containers (2) are treated in at least one treatment zone (4) by a process liquid (3), wherein the process liquid (3) is at least partially recirculated into the treatment zone (4) or the treatment zones (4) after completed treatment of the foods and/or the containers (2). It is provided herein that during continuous treatment at least some or all of the process liquid (3) is used per time unit to form at least one stream (20) of the process liquid (3), the formed stream (20) is filtered by at least one membrane filtration system (19), and a filtered stream (46) is at least partially fed back into an element (8) holding and/or conducting the process liquid (3) and/or into a treatment zone (4).

Ultraviolet radiation is directed within an area at target wavelengths, target intensities, a target temporal distribution, and/or a target spatial distribution. The target attribute(s) of the ultraviolet radiation can correspond to at least one of a plurality of selectable operating configurations including a storage life preservation operating configuration, a disinfection operating configuration, an ethylene decomposition operating configuration, and/or the like.

The present disclosure relates to a method of increasing an amount of a stilbenoid, and/or one or more compounds selected from the group consisting of TCA cycle metabolites, polyamine alkaloids, 4-aminobutyric acid, abscisic acid and salts thereof in a plant, the method comprising steps of: irradiating the plant, part, crushed material or cultured plant cell with light, wherein a fluence at a wavelength range of 275-295 nm is 50,000-2,500,000 mol/m.sup.2, while at the same time a fluence at a wavelength range of 200-270 nm is less than 20% of the fluence at the wavelength range of 275-295 nm; and storing the irradiated plant, part, crushed material or cultured plant cell in a dark place for 1 day or more.

The present disclosure relates to a method of increasing an amount of a stilbenoid, and/or one or more compounds selected from the group consisting of TCA cycle metabolites, polyamine alkaloids, 4-aminobutyric acid, abscisic acid and salts thereof in a plant, the method comprising steps of: irradiating the plant, part, crushed material or cultured plant cell with light, wherein a fluence at a wavelength range of 275-295 nm is 50,000-2,500,000 mol/m.sup.2, while at the same time a fluence at a wavelength range of 200-270 nm is less than 20% of the fluence at the wavelength range of 275-295 nm; and storing the irradiated plant, part, crushed material or cultured plant cell in a dark place for 1 day or more.

A solution for treating a surface with ultraviolet radiation is provided. A movable ultraviolet source is utilized to emit a beam of ultraviolet radiation having a characteristic cross-sectional area smaller than an area of the surface to be treated. The movable ultraviolet source can be moved as necessary to directly irradiate any portion of the surface with radiation within the characteristic cross-sectional area of the beam of ultraviolet radiation. The movement can include, for example, rotational movement and/or repositioning the movable ultraviolet source with respect to the surface.

A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.

A device for decontamination and detoxification by emitting light flashes rich in UV radiation, particularly UVC. The device includes: a flash lamp; a reflector, preferably placed behind the flash lamp, so as to reflect the light emitted by the lamp towards an output window; and a UV detector for measuring the UV radiation emitted by the lamp.