12 results about "Pupa" patented technology

This utility model relates to an automatic unwinding device for live tussah silkworm pupae, including an unwinding liquid tank. A drive motor is installed at one end of the unwinding liquid tank, and the output shaft of the drive motor extends into the device housing and connects to a roller. Multiple first leakage holes are opened on the surface of one end of the roller, and multiple cocoon-filling grids are opened on the surface of the roller. Fresh tussah silkworm cocoons are loaded into the cocoon-filling grids on the surface of the roller. This utility model has the ability to operate stably in low temperature and normal pressure environments, can automatically achieve constant temperature control, and can automatically rotate to allow fresh tussah silkworm cocoons to enter and exit the low temperature alkaline unwinding liquid, thereby ensuring that the pupae inside the cocoons can obtain sufficient oxygen supply. Its heating has a temperature control function, which can effectively ensure the unwinding effect of the alkaline solution. In addition, it is more flexible and mobile, improving production efficiency and reducing resource waste while having lower requirements for working environment conditions.

This invention relates to the field of silkworm cocoon processing technology. Addressing the problems of low efficiency and poor accuracy in existing methods of cocoon cutting, pupa removal, and sex identification, which rely on manual operation, this invention discloses an automated cocoon cutting and pupa identification device. The device includes a cocoon-laying device with an array of holes for clamping mechanisms, a vibrating platform driven by a shaking motor, a cocoon cutting mechanism for opening the cocoons, a first horizontal drive component, a first lifting drive component, and a suction cup picking device with an array of suction cups, a conveying device for receiving and conveying silkworm pupae, and a pupa identification device arranged along the conveying device and including an image acquisition unit and a processing unit. The suction cup array adsorbs silkworm pupae from the open cocoons at the adsorption positions and lowers them onto the conveying device at the conveying positions. The image acquisition unit acquires images of the morphological end of the silkworm pupae's abdomen, and the processing unit identifies sex characteristics based on these images and outputs the male / female identification result. This device can automate the cocoon cutting, pupa removal, and pupa sex identification operations, and is suitable for large-scale processing of silkworm pupae in the sericulture industry.

This invention relates to the technical field of aquaculture feed, specifically a special nutritional feed for laying female turtles, comprising the following ingredients by weight: 45-60% Cordyceps militaris mycelium, 20-25% wheat bran, 12-15% corn flour, 5-10% tomato powder, and 3-5% oyster meat powder. The Cordyceps militaris mycelium is obtained by mixing a culture medium containing 35-50% soybean meal, 20-25% sugarcane, 15-20% Leonurus japonicus, 8-10% oyster shell powder, 5-7% soybean flour, and 2-3% silkworm pupa powder with lotus root sauce, placing it evenly in a cultivation box, sterilizing it, and then inoculating and cultivating it. The inoculum is isolated from the fruiting bodies of Cordyceps militaris and then cultivated into a liquid inoculum. This special nutritional feed for laying female turtles has a cleverly formulated ingredient ratio, achieving multiple goals such as enhancing immunity, supplementing ovulation nutrition, improving reproductive performance, preventing postpartum inflammation, and shortening the recovery period. Furthermore, this feed is highly safe and free of drug residues.

This application relates to the field of pest control, specifically providing a trunk-encircling pupation device for controlling the fall webworm and its usage method. The device includes a base box, fixing rods, connectors, and a fence. The base box has an open top, and two fixing rods are fixedly installed on the inner edge of the base box, located at both ends of the inner edge. Connectors are connected to the upper ends of the two fixing rods, extending outwards from the base box. The suspended ends of the two connectors connect to both ends of the fence. The area enclosed by the fence, connectors, and fixing rods is larger than the area of ​​the open top of the base box. In use, the fixing rods are tied to the tree trunk, and rod-shaped filler is placed between the base box and the fence. After pupation is complete, the rod-shaped filler is removed and disposed of, and replaced with new rod-shaped filler. Multiple gradually narrowing gaps are formed in the rod-shaped filler, providing a stable and well-ventilated pupation environment for the fall webworm, resulting in good pupation attraction.

This invention provides an enzymatic hydrolysis method for silkworm pupa peptides, belonging to the field of enzymatic hydrolysis technology. The method includes: washing and pulverizing silkworm pupae to obtain silkworm pupa powder; selecting enzyme types based on the silkworm pupa protein structure and preparing a corresponding buffer solution by determining the optimal pH range; constructing a reinforcement graph neural network model to predict the optimal material-to-liquid ratio; mixing the silkworm pupa powder and buffer solution according to the optimal material-to-liquid ratio and heating to a preset temperature for enzymatic hydrolysis to obtain an enzymatic hydrolysate; concentrating the treated enzymatic hydrolysate and drying it to produce powdered or granular products for packaging to obtain silkworm pupa peptides. This invention, by utilizing a graph neural network model, the Red-billed Blue Magpie algorithm, and reinforcement learning strategies, can accurately predict the optimal material-to-liquid ratio, improving production efficiency, reducing costs, and ensuring the stability of the enzymatic hydrolysis reaction.

The application belongs to the technical field of ground spreading granules, and discloses a preparation method and application of ground spreading granules, which contain pesticides and fillers, and also contain penetration factors and polymers for encapsulating the penetration factors; the penetration factors are orange peel essential oil and wintergreen oil; and the polymers contain hydroxypropyl methyl cellulose and chitosan. The ground spreading granules adopt the combination of orange peel essential oil and wintergreen oil as the penetration factors, can dissolve the waxes on the surfaces of fruit fly pupa cases, efficiently penetrate the hard pupa cases, break the interface barriers on the surfaces of the soil, and make the pesticides accurately and efficiently contact the pupa targets on the surfaces of the soil, so that the fruit fly pupae can be effectively killed. The polymers form a protective coating on the pesticide particles, so that the pesticide particles are prevented from being directly exposed to the soil, and the penetration factors are encapsulated by the polymers to play a slow-release role, so that the rapid volatilization and loss of the orange peel essential oil and the wintergreen oil are avoided, and therefore the ground spreading granules have a long effective time in the soil environment.

This invention discloses a method for preparing silkworm pupa protein peptides using a chitinase-containing compound enzyme, and the resulting protein peptides. The method uses fresh, wet silkworm pupae as raw material, employing a three-stage physical degreasing and purification process to effectively remove lipids and impurities. A stepwise, precise enzymatic hydrolysis process is used: the first stage involves preliminary hydrolysis under alkaline conditions using alkaline protease; the second stage involves adding neutral protease and a specially formulated compound enzyme containing chitinase for deep enzymatic hydrolysis, simultaneously degrading the silkworm pupa tissue barrier and selectively cleaving and enriching functionally active peptides. This process involves no chemical reagents, resulting in high-purity products with clearly defined functional activities. Testing shows that the total peptide content of the product is ≥85%, with small molecule peptides (molecular weight less than 1000 Da) accounting for ≥55%. This invention is environmentally friendly and significantly improves the utilization efficiency of silkworm pupa protein, providing an efficient preparation route for developing functional foods related to cardiovascular regulation.

The application discloses a preparation method of chitin extracted from black soldier fly pupa shells, and steps of the method comprise pretreatment, core extraction, solid-liquid separation and chitin refining. The application realizes one-step completion of demineralization, deproteinization and decolorization, is suitable for industrial large-scale production, and solves the problems of limited raw materials, serious pollution, low product purity and waste of black soldier fly pupa shell resources in traditional chitin extraction. The application uses a eutectic solvent formula suitable for black soldier fly pupa shells to realize one-step three effects of demineralization, deproteinization and decolorization, replace the traditional step-by-step process of demineralization by strong acid, deproteinization by strong alkali and separate decolorization, greatly simplify the process and reduce the industrialization cost; the process condition is mild, the energy consumption is far lower than that of the traditional process, the product purity and recovery rate are high, and the product can be applied to high-end fields such as food, medicine and cosmetics.