Abstract: A method for detecting a texture of Takifugu obscurus, including: (S1) removing internal organs and skin of the Takifugu obscurus followed by washing and drying; and removing a head and cutting a flesh on two sides of the Takifugu obscurus along a spine; (S2) cutting a plurality of cylindrical samples with the same shape and size along both sides of the flesh followed by transfer to a pre-cooled petri dish; allowing a cross section of the samples to cling to the petri dish followed by fixing with a petri dish cover; and storing the petri dish in seal at 0-4° C.; (S3) detecting, by a texture analyzer, a texture of each cylindrical sample; and averaging detection results of the samples as a result of the texture of the Takifugu obscurus.

Abstract: Disclosed is a method of testing an inhibitory effect of carbon dioxide on a spoilage causing ability of Shewanella putrefaciens, which includes activation, preparation of a bacterial suspension, preparation and treatment of samples, inoculation, transfer to packaging bag, modified atmosphere packaging, refrigeration and performance detection. After stored for 0-18 days, three inoculated samples are randomly selected and tested to evaluate inhibitory effects of different CO2 concentrations on the spoilage causing ability of Shewanella putrefaciens.

Abstract: A pulsed electron paramagnetic resonance spectrometer comprises: a microwave excitation generating unit for generating at least one microwave pulse; a microwave conducting unit comprising a resonant cavity and a microwave transmission line for transmitting microwaves, wherein the microwave transmission line is connected between the microwave excitation generating unit and the resonant cavity, and the resonant cavity is for placing a sample; a cryostat and magnet unit comprising a cryostat that performs ultra-low temperature cooling for the microwave resonant cavity, the microwave transmission line being disposed to pass through the cryostat and connected to the resonant cavity; the cryostat and magnet unit further comprises a magnet that provides a resonance test magnetic field around the sample, the resonant cavity being disposed in a room temperature gap of the magnet. The device of the present disclosure characteristics in ultra-low sample temperature (0.

Abstract: A pulsed electron paramagnetic resonance spectrometer comprises: a microwave excitation generating unit for generating at least one microwave pulse; a microwave conducting unit comprising a resonant cavity and a microwave transmission line for transmitting microwaves, wherein the microwave transmission line is connected between the microwave excitation generating unit and the resonant cavity, and the resonant cavity is for placing a sample; a cryostat and magnet unit comprising a cryostat that performs ultra-low temperature cooling for the microwave resonant cavity, the microwave transmission line being disposed to pass through the cryostat and connected to the resonant cavity; the cryostat and magnet unit further comprises a magnet that provides a resonance test magnetic field around the sample, the resonant cavity being disposed in a room temperature gap of the magnet. The device of the present disclosure characteristics in ultra-low sample temperature (0.