5results about How to "Improve physiological activity" patented technology

The invention belongs to the technical field of microorganisms and compound nutrients, and particularly relates to a postbiotic preparation and composition for improving activity of gamma-aminobutyric acid and promoting calcium absorption and application of the postbiotic preparation and composition in sleep improvement and bone health. Through the synergistic effect of the specific metagen preparation and the gamma-aminobutyric acid, the multi-dimensional technical breakthrough is realized, and the physiological activity and the application value are remarkably improved. In the aspect of bioavailability, the intestinal barrier function is improved and the pH value of the intestinal tract is adjusted to be weakly acidic through the postbiotics, so that the concentration of serum GABA is increased by 2-3 times compared with that of single use, and the calcium absorption rate is increased from 30% to 55-60%. And on the aspect of function synergy, the limitation of single effect in the prior art is broken through, dual-function synergy of'sleep regulation-bone health 'is realized, meanwhile, the vicious circle of'poor sleep-calcium loss' is improved, and good practical application value is achieved.

This invention discloses an automated crop planting device for cuttings, relating to the field of agricultural machinery. It includes a planting cylinder and a lifting platform. The upper part of the planting cylinder has a seedling delivery component within a seedling separation chamber. Its trumpet-shaped support plate, with its wide opening facing upwards, accommodates seedlings. A concentric seedling separation plate at the bottom is driven to rotate by an independent motor. Mechanical single-plant separation is achieved through seedling holes and notches. Seedlings fall under gravity through the delivery tube into the lower cutting chamber. The rotation speed of the seedling separation plate is linked to the walking speed and the cutting frequency to ensure proper spacing between plants. The cutting chamber is equipped with an adaptive cutting component. Seedlings fall between a pair of synchronously rotating inward-facing conveying gears, and are elastically clamped by a tension spring to adapt to irregular shapes and avoid damage. Simultaneously, the V-shaped clamp of the vertical cutting component moves downwards to correct tilting, achieving precise vertical insertion of seedlings into the soil. This device realizes mechanical single-plant separation, elastic adaptive clamping, and vertical cutting, improving operational efficiency and survival rate.

The application belongs to the technical field of food processing, and particularly relates to high-purity resistant starch concentrate and a preparation method thereof. Low-purity resistant starch ultrafine powder with a dry basis resistant starch content of 30% to 35% is used as raw material, and after being slurried, the raw material is subjected to double-enzyme hydrolysis of alpha-amylase and saccharifying enzyme to specifically remove digestible starch, dextrin and oligosaccharide in the raw material; then, the enzyme is inactivated, centrifugal separation and multiple water rinsing purification are performed, and high-purity resistant starch wet material with a dry basis resistant starch content of greater than or equal to 90% is obtained; after the wet material is proportionally mixed with water, high-pressure microjet homogenization treatment is performed to fully hydrate and disperse the particles, and finally, stable concentrate with a concentration of greater than or equal to 50% w / v is obtained. The purity of resistant starch is greatly improved, and the efficacy is significantly enhanced. The application uses low-cost low-purity resistant starch with a purity of about 30% as raw material, removes digestible starch, dextrin and oligosaccharide through double-enzyme hydrolysis with precise specificity, and combines physical rinsing and purification, so that the dry basis purity of resistant starch can be stably improved to more than 90%, and the physiological activity per unit weight is stronger.

The application discloses a small-molecule casein peptide and a preparation method thereof, and belongs to the field of small-molecule active peptides.The small-molecule casein peptide takes a small-molecule casein peptide chelating magnesium as an active ingredient, and the chelating rate of magnesium ions is greater than 70%.The preparation method comprises the following steps: adding pure water into casein powder and stirring to dissolve the casein powder; adding a protease for enzyme hydrolysis after adjusting pH and temperature; performing enzyme inactivation after the enzyme hydrolysis is completed; performing ultrafiltration separation on supernatant of the enzyme hydrolysis solution by using an ultrafiltration membrane to separate a casein peptide solution; adjusting the concentration of the casein peptide solution, and adding a magnesium-containing compound to perform a chelating reaction; adding anhydrous ethanol into the solution to precipitate the casein peptide after chelating; collecting the casein peptide precipitate after alcohol precipitation by centrifugation, and performing freeze-drying to obtain the small-molecule casein peptide chelating magnesium.The small-molecule casein peptide has significant physiological activity, good intelligence-improving effect, and wide application prospect; and the preparation method is simple, the reaction condition is mild, and the method is easy to be scaled up for industrial production.

The application discloses a multi-layer embedding areca alkaloid sustained-release system and a preparation method and application thereof, relates to the technical field of areca alkaloid, and the sustained-release system comprises an areca alkaloid core layer, an antioxidation layer and a protective layer. The areca alkaloid sustained-release core layer is located in the innermost layer, the antioxidation layer is wrapped outside the sustained-release core layer, and the protective layer is wrapped outside the antioxidation layer. The areca alkaloid is wrapped by the sustained-release core layer, the antioxidation layer and the protective layer in sequence, can effectively resist the damage of gastric acid and other environmental conditions to the structure of the areca alkaloid, prevents the oxidation inactivation of the areca alkaloid, realizes the target of targeting the intestinal tract of the active areca alkaloid, and meanwhile, can avoid the contact of the areca alkaloid with other organ tissues, and reduces the side effects of the areca alkaloid.