3 results about "Pig heart" patented technology

The invention relates to the technical field of active peptides, in particular to a myocardial active peptide capable of relieving heart failure and protecting heart and a preparation method thereof. The method takes pig hearts as raw materials, and sequentially comprises the following steps: pretreating the pig hearts, adding water, and homogenizing; adding alkaline protease to carry out first constant-temperature enzymolysis; adding neutral protease and flavourzyme to carry out second constant-temperature enzymolysis; then lipase is added for third-time constant-temperature enzymolysis, and enzyme deactivation and cooling are carried out; and finally, adding activated carbon into the enzymatic hydrolysate, filtering with diatomite, and spray-drying to obtain the myocardial active peptide. According to the method, the yield and the purity of the active peptide are remarkably improved through a synergistic process of three-step enzymolysis and activated carbon purification, the obtained product is rich in small molecule peptide with a definite heart protection function, and a new way is provided for high-value utilization of pig heart resources and development of functional products for preventing and treating heart failure.

The application discloses a kind of myoglobin preparation process for chemiluminescence immunoassay quality control product, it is related to myoglobin preparation technical field, comprising the following steps: raw material pretreatment: after removing impurities of fresh pig heart muscle tissue, it is placed in automatic cleaning cutting equipment and is cut and cleaned, myoglobin extraction: muscle tissue after pretreatment is placed in grinding mechanism, and extraction fluid is added to grind, centrifugal separation: after extraction, mixed liquid is placed in high-speed centrifugal separation equipment and is centrifuged, to obtain supernatant, purification treatment: supernatant is purified by multistage filtration separation equipment, stabilization treatment: after purification, myoglobin solution is added with stabilizer, placed in gradient temperature control stirring system and stirred and mixed, low-temperature preservation, solve the problem that muscle tissue is cut into meat foam by manual shearing mode, grinding is not enough, so that separation effect is poor, leading to the problem that myoglobin purity is not high and activity is easily affected.

The application provides a live pig heart rate detection method and system based on FMCW radar and deep learning, relates to the field of intelligent livestock breeding, and comprises signal synchronous acquisition, data preprocessing and sample construction, spatial micro-motion feature extraction, frequency domain enhancement and interference suppression, long-time sequence dependence modeling, heart rate regression output, model training and online deployment. The method makes up for the defects of the existing non-contact live pig heart rate detection technology in the robustness under a complex breeding environment, realizes continuous, automatic and low-interference monitoring of the live pig heart rate, and is convenient for breeding managers, veterinarians and experimental personnel to master the vital sign changes of live pig individuals in real time.