6results about "Meat/fish preservation using solids" patented technology

The invention belongs to the technical field of intelligent controlled-release antibacterial packaging, and particularly relates to a double-sided heterostructure humidity triggering fresh-keeping pad based on the MOFs confinement effect and a preparation method and application of the double-sided heterostructure humidity triggering fresh-keeping pad. According to the design of the fresh-keeping pad, high-sensitivity sensing of microenvironment humidity fluctuation and intelligent reversible and accurate controlled release of active ingredients are achieved, and the long-term stability of the active ingredients is remarkably improved. A double-sided heterogeneous fiber membrane design is adopted, and a stable hydrogen bond and physical cross-linked network is constructed by utilizing the interface complementary characteristic of different fiber layers, so that the material is endowed with excellent reversible swelling-shrinking capability in a wide humidity range; the structure collapse easily caused by a single material is effectively avoided, the problem of active ingredient explosive release caused by the structure collapse is thoroughly solved, and the repeatability and long-term stability of intelligent response are remarkably improved; due to the heterostructure design, one-way efficient transmission of water is ensured, water management is optimized, the overall fresh-keeping performance is further improved, and wide application prospects are achieved.

The invention belongs to the technical field of food fresh-keeping materials, and particularly relates to an aerogel type composite fresh-keeping pad as well as a preparation method and application thereof. The preparation method of the aerogel type composite fresh-keeping pad comprises the following steps: S1, mixing polyethylene glycol, oxalic acid and polyacrylic acid, and stirring at 70-80 DEG C to obtain a eutectic solvent; the method comprises the following steps: mixing a biomass raw material with a deep eutectic solvent, extracting, and filtering to obtain solid residues; s2, mixing the obtained solid residues with water, performing high-pressure homogenization treatment, mixing the obtained cellulose-containing suspension with a gelatin solution and a cross-linking agent, pouring the obtained mixed solution into a forming mold, performing freeze-drying treatment, and taking out to obtain the aerogel type composite fresh-keeping pad. The aerogel type composite fresh-keeping pad prepared by the method disclosed by the invention has good mechanical property, water absorption and antibacterial activity, and shows an excellent fresh-keeping effect in fresh-keeping of fish slices.

The invention provides a batch pickling device for meat product processing, and relates to the technical field of pickling equipment.The batch pickling device comprises a first pickling tank, a second pickling tank, outer supporting frames and a lower supporting seat, the tail of the first pickling tank and the tail of the second pickling tank are oppositely spliced, the outer supporting frames are arranged on the outer sides of the first pickling tank and the second pickling tank, and the lower supporting seat is arranged on the outer supporting frames; lower supporting seats are arranged on the two sides of the outer supporting frame, a middle stirring shaft is rotationally arranged on the inner side of the second pickling tank, a middle communicating pipe is rotationally arranged on the inner side of the middle stirring shaft, the tail of the middle communicating pipe is communicated with an outer cleaning pipe, and outer cleaning nozzles are arranged on the outer side of the outer cleaning pipe in an annular array mode; an outer stirring rod is fixedly arranged at the head end of the middle stirring shaft. The first pickling tank and the second pickling tank can be used for guiding out meat, the guiding-out speed of the meat is further increased, the discharging efficiency is improved by 40%, an opening is larger, residues are less, and the problems that a single outlet is small in size, low in discharging speed and low in efficiency are solved.

The application discloses a ham quantitative salt feeding machine, which comprises a salt feeding table, the salt feeding table comprises a table frame and a table top located at the upper end of the table frame, a plurality of salt storage boxes are arranged in the table frame, the lower end of each salt storage box is communicated with a discharging pipe, a spiral discharging rod is rotationally connected in each discharging pipe, and a salt feeding driving motor for driving the spiral discharging rod to rotate is arranged on each salt storage box; a mixing hopper is arranged below the discharging pipe in the table frame, a salt outlet is formed in the table top above the mixing hopper, the salt outlet is downwardly provided with a salt conveying pipeline extending into the mixing hopper, a salt feeding gap is formed between the salt conveying pipeline and the bottom of the mixing hopper, a spiral conveying rod is rotationally connected in the salt conveying pipeline, and a salt feeding driving motor for driving the spiral conveying rod to rotate is arranged at the lower end of the mixing hopper; and a code scanning gun for code scanning is further arranged. The application can automatically record and identify the salt feeding times of the ham through the code scanning mode, accurately provide salt during each salt feeding, and thus guarantee the quality and taste of the ham.

The pickling equipment comprises a base, a supporting plate is installed at the top end of the base, a fixing cylinder is welded to the top end of the supporting plate, an air outlet pipe is connected to the inner side of the fixing cylinder in a clamped mode, an air pressure electromagnetic valve is connected to the outer side of the air outlet pipe in a sleeved mode, and the air inlet end of the air outlet pipe is connected with a pressurizing pipe; the top of the outer side of the air outlet pipe is communicated with a salt outlet pipe, the outer side of the salt outlet pipe is sleeved with a salt amount control valve, one end of the salt outlet pipe is connected with a salt tank, the other end of the air outlet pipe is communicated with a salt conveying pipe, and after salt for pickling is in contact with the salt separating pipe, high-pressure air can blow the salt for pickling to all salt homogenizing holes, so that the salt can be separated from the salt homogenizing holes; and finally, the salt can be uniformly blown to the casing from the salt homogenizing holes, so that the salt for pickling is uniformly smeared from the inside of the casing, the inside and outside of the casing can be uniformly pickled, local corruption caused by non-uniform smearing is prevented, and the taste of the casing is further improved.

The application belongs to the technical field of food preservation materials, and particularly relates to an aerogel type composite preservation pad and a preparation method and application thereof. The preparation method of the aerogel type composite preservation pad comprises the following steps: S1. mixing polyethylene glycol, oxalic acid and polyacrylic acid, and then stirring and treating at 70-80 DEG C to obtain a eutectic solvent; mixing biomass raw materials with the eutectic solvent, and then performing extraction treatment, and then filtering to obtain solid residues; S2. mixing the obtained solid residues with water, and then performing high-pressure homogenization treatment to obtain a cellulose-containing suspension; mixing the obtained cellulose-containing suspension with a gelatin solution and a crosslinking agent, pouring the obtained mixed solution into a forming mold, and then performing freeze-drying treatment, and then taking out to obtain the aerogel type composite preservation pad. The aerogel type composite preservation pad prepared by the method has good mechanical properties, water absorption and antibacterial properties, and exhibits excellent preservation effect in fish slice preservation.