360 results about "Lychee fruit" patented technology

The invention relates to the technical field of molecular biology, and particularly provides an InDel molecular marker related to the size of a lychee kernel and application of the InDel molecular marker. The InDel molecular marker is located at a site 25610680 of a fifth chromosome of a reference genome GeneBank: GCA019925255.1 of the litchi, and the InDel molecular marker is used for detecting the DNA of the litchi. The genotype of the marker in a pyrokaryotic litchi material is homozygous' GAAAAA / GAAAAA ', and the genotype of the marker in a macrokaryotic litchi material is heterozygous' G---- / GAAAAA 'or homozygous' G---- / G----'. The invention further provides a primer group for detecting the molecular marker, an effective tool is provided for molecular marker-assisted breeding of the size of the lychee kernel, and the method is expected to assist in shortening the breeding period, improving the breeding efficiency and promoting the improvement work of the lychee variety.

The invention belongs to the technical field of biology, and relates to a combined method for improving the taste of cerasus humilis clear juice and increasing the content of available calcium and zinc, which comprises the following operation steps: S1, removing impurities from cerasus humilis fruits, cleaning, denucleating and crushing to obtain cerasus humilis pulp; s2, performing primary enzymolysis on the cerasus humilis fruit pulp to obtain primary enzymolysis cerasus humilis fruit pulp; s3, fermenting the cerasus humilis fruit pulp to obtain fermented cerasus humilis fruit pulp; s4, performing secondary enzymolysis on the fermented cerasus humilis fruit pulp to obtain secondary enzymolysis cerasus humilis fruit pulp; and S5, filtering, sterilizing and filling the secondary enzymolysis cerasus humilis pulp to obtain a cerasus humilis clear juice product. The combined method of high-speed dispersion machine release, pectinase enzymolysis, issatchenkia terricola fermentation and joint enzymolysis of cellulase, beta-glucosidase and alpha-rhamnosidase is utilized, the product taste is effectively improved while the yield of the cerasus humilis clear juice product is increased, and the cerasus humilis clear juice product is palatable in sourness and sweetness, clear, transparent and bright, full in flavor and suitable for large-scale production. And the contents of calcium and zinc are increased by more than 65% and 59%. The product has good calcium and zinc supplementing effects.

The invention relates to an SNP molecular marker related to litchi fruit weight and application thereof, and belongs to the technical field of molecular biology. The SNP molecular marker related to the litchi fruit weight is based on a seedless litchi reference genome, the SNP molecular marker is located in a litchi SL05G0138630 gene coding region, and is located at the 27564818th basic group of a litchi chromosome 5, and the basic group is A or G. The application finds that a non-synonymous SNP site in a coding region of the litchi SL05G0138630 gene is closely associated with the litchi fruit weight phenotype, the variety with the weight of the litchi fruit can be efficiently identified by detecting the polymorphic site, the invention further discloses an identification method for the molecular level of the variety with the weight of the litchi fruit, and the molecular level of the variety with the weight of the litchi fruit can be identified by an SNP-based typing method. And cheap and accurate gene SNP typing can be achieved, so that the purpose of efficiently and accurately identifying the weight variety of the litchi fruit is achieved.

The invention discloses a tricholoma matsutake culture medium using litchi branches as a matrix and a cultivation method thereof. The tricholoma matsutake culture medium is prepared from the following components in percentage by weight: 30-50% of litchi sawdust, 30-50% of cottonseed hulls, 3-8% of bran, 3-8% of corncobs, 3-8% of rice husks, 1-5% of corn flour and 1-5% of lime. The method is characterized in that the litchi branches are added into the stock liquid culture medium for making the branch seeds for the first time, on one hand, the tricholoma matsutake strains can be trained to generate extracellular enzymes capable of utilizing litchi wood chips, macromolecules of the litchi branches can be rapidly decomposed, and on the other hand, nutrient elements contained in the litchi branches can promote growth of tricholoma matsutake hyphae more rapidly, and the growth rate of the tricholoma matsutake hyphae is increased. The branch seeds are large in inoculation area and high in hybrid resistance, the growth time of mycelium of the cultivation material can be shortened, and the fruiting rate is increased. The invention not only provides a solution for innocent treatment of the litchi branches, but also finds a new culture medium for red tricholoma matsutake culture.

The invention relates to the technical field of computer vision, in particular to an improved YOLOv8n-based unmanned aerial vehicle litchi image detection method, which comprises the following steps of: acquiring a litchi image data set of a litchi orchard; a YOLOv8-litchi model based on the YOLOv8n model is constructed; training set data are input into the model for training, and detection and classification of the litchi fruits are completed; and inputting test set data into the model to realize accurate detection of the litchi fruits. According to the invention, an RCS-OSA module is introduced to improve a YOLOv8 network model, the feature extraction capability of a feature acquisition module is enhanced, the calculation complexity is reduced, effective information of the module is successfully fused by introducing a BiFPN network structure, the detection capability of a detection model is enhanced by using a DynamicHead detection head, and the detection efficiency is improved. And finally, the detection precision, the generalization ability and the robustness of the model are enhanced, so that relatively high accuracy is obtained in a natural environment.

The invention relates to the technical field of daily chemical industry, and discloses a moisturizing and soothing composition and application thereof.The moisturizing and soothing composition comprises, by weight, 20-25% of C14-16 sodium olefin sulfonate, 20-25% of C14-16 sodium alkyl sulfonate, 20-25% of C14-16 sodium alkyl sulfonate, 10-20% of C14-16 0.3%-0.7% of a cationic polymer; a litchi pericarp extract; an aloe extract; and a rosemary extract; wherein the total weight percentage of the litchi peel extract, the aloe extract and the rosemary extract is 1.9%-3.3%. The components are compounded, the cationic polymer and the anionic surfactant are utilized to construct a deposition system, and the three plant extracts with specific total content are cooperated, so that the retention rate of active ingredients in scalp is effectively increased, and the problem that moisturizing and soothing ingredients are easy to wash away is solved. The invention also provides a preparation method combining hot preparation and cold preparation, and the stability of the system and the activity of the extract are ensured by homogenizing the phase A at high temperature and adding the phase E at low temperature. The composition can be used for preparing shampoo products for moisturizing or relieving scalp.

The invention discloses acetobacter aceti as well as an isolated culture method and application thereof, and belongs to the technical field of microorganisms. According to the invention, an acetobacter aceti SCU-LH-1 strain is separated and screened from vinegar culture, and the preservation number is CGMCC (China General Microbiological Culture Collection Center) NO.33010. The strain provided by the invention can be used for producing litchi kernel table vinegar, lactic acid is preferentially synthesized in the fermentation process, the proportion of organic acid in the table vinegar is changed, and the proportion of lactic acid to acetic acid is remarkably increased, so that the taste of the table vinegar is effectively improved, and the table vinegar is softer and mellower; and the contents of ester components such as isoamyl acetate and lychee flavor components such as geraniol in the table vinegar are increased, so that the table vinegar has richer lychee flavor. According to the method, efficient utilization of fruit byproducts can be achieved, high-quality table vinegar is produced, reasonable utilization of resources is achieved, the raw material source of table vinegar production is expanded, the production cost is reduced, and good economic benefits and environmental benefits are achieved.

The invention relates to a preparation method, a product and application of a whitening and antioxidant litchi peel extract. The preparation method comprises the following steps: (1) mixing litchi peel powder with water, and carrying out ultrasonic extraction to obtain a litchi peel crude extract; (2) mixing the litchi peel crude extract with a compound enzyme, carrying out an enzymatic hydrolysis reaction, and carrying out enzyme deactivation treatment after the reaction to obtain an enzymatic hydrolysate; (3) performing cation exchange resin purification on the enzymatic hydrolysate to obtain a litchi pericarp extract; the compound enzyme in the step (2) comprises papain, bromelain and neutral protease. The litchi pericarp extract prepared by the invention has excellent antioxidant capacity and whitening effect, is safe and non-irritant, and is more beneficial to absorption by the human skin surface.

The invention belongs to the technical field of litchi planting, and particularly relates to a high-precision three-dimensional measurement method in a litchi growth process, before an experiment is started, calibration marks are fixed on branches to ensure precise scaling of a three-dimensional model, the marks are always visible in an imaging process, and during data acquisition, the calibration marks are not visible. A 360-degree imaging strategy is adopted for part of branches to obtain complete multi-view coverage; in the data preprocessing stage, background elimination is carried out based on a collaborative image segmentation method of Ground DINO and SAM2, precise litchi main body extraction is realized, an improved Compact-2DGS method is provided, a redundant Gaussian unit is eliminated through a novel stability perception elimination strategy, efficient storage compression is realized, and the method has the advantages of high efficiency and high efficiency. And the two-dimensional rendering quality and the three-dimensional reconstruction precision are synchronously improved in combination with a GStex optimization technology. By tracking the maximum width, height and volume of the fruit cluster determined in the reconstructed three-dimensional model, the growth rule of the litchi fruit of the seven branches is analyzed.

The invention discloses a complex microbial inoculant containing streptomyces elongisporus and trichoderma Guizhou, the streptomyces elongisporus is streptomyces elongisporus A25, and the trichoderma Guizhou is trichoderma Guizhou NJAU4742. The invention further discloses application of the complex microbial inoculant to promotion of cucumber growth and application to promotion of seedless litchi yield improvement and fruit quality improvement. Streptomyces elongisporus A25 and trichoderma Guizhou NJAU4742 which are separated and screened from seedless litchi tree rhizosphere soil are prepared into the composite microbial agent, the composite microbial agent is applied to a cucumber pot experiment, cucumber growth can be remarkably promoted, and when the composite microbial agent is applied to a seedless litchi field experiment, seedless litchi yield improvement and fruit quality improvement can be remarkably promoted. The complex microbial inoculant disclosed by the invention has important significance on sustainable development of the seedless litchi industry.

The invention discloses a lychee image classification method based on a YOLO11 model, and the method comprises the steps: employing a lychee image database to train the YOLO11 model, and the YOLO11 model comprises a backbone network, a neck network, and a decision network; wherein the backbone network comprises a convolutional layer and a HaloAttention module, and the convolutional layer comprises a lightweight adaptive extraction convolution (LAE); the neck network comprises a CARAFE feature sampling block; and carrying out litchi variety prediction by adopting the trained YOLO11 model. According to the method, the local attention HaloAttention is introduced into the backbone network of the YOLO11 model, so that the feature expression capability in a local range is improved; the Conv convolution is replaced with lightweight adaptive extraction convolution LAE, and feature complementation between channels is enhanced; a CARAFE feature sampling block is introduced, and the sampling process is dynamically adjusted according to input features; the method can accurately predict the variety of the litchi fruit, and has the advantages of rapid identification, high identification accuracy and strong stability.

The invention relates to the technical field of fruit fresh-keeping storage, and discloses a low-carbon fresh-keeping litchi normal-temperature storage, transportation and packaging method which comprises the following steps: (1) pretreatment: picking fresh litchis, screening the picked fresh litchis, and then precooling the screened litchis until the temperature of fruit cores is 0-15 DEG C; (2) packaging: carrying out e-commerce packaging in an operation room at the temperature of 15-20 DEG C, firstly putting a phase change cold storage agent at the bottom of an aluminum foil heat preservation bag, then putting a bacteriostatic fresh-keeping water absorption pad, then putting the pretreated fresh litchis, packaging by using the aluminum foil heat preservation bag coated with a macromolecular waterproof layer, and finally putting the litchis into a drying room at the temperature of 15-20 DEG C; the whole aluminum foil heat preservation bag is placed into a foam box made of polypropylene plastic foam materials and then sealed, and the outer layer is a common carton with a trademark; the bacteriostatic fresh-keeping water-absorbing pad contains a water-absorbing bacteriostatic compound (3) for transportation; according to the packaging method, temperature control, bacteriostasis, drying and air permeability are achieved, the fresh-keeping effect on the litchis is effectively achieved, and the method is low-carbon, environmentally friendly, simple, efficient and high in generalization performance.

The invention belongs to the field of comprehensive utilization of palm leaves, and particularly relates to a natural preservative containing palm leaf extract as well as a preparation method and application of the natural preservative. According to the natural preservative disclosed by the invention, sunflower discs, betel nut leaves, mint leaves, oil-tea cakes and barley are added into lactobacillus plantarum to prepare fermentation liquor, the fermentation liquor is sterilized, and then palm leaf extract and purslane extract are added, so that the antibacterial rate on mango colletotrichum gloeosporioides, litchi fruit colletotrichum gloeosporioides and strawberry colletotrichum gloeosporioides can be remarkably increased; the preservative can effectively prevent fruits from decaying and deterioration, can effectively prolong the storage life of fruits when being used for preservation and fresh keeping of fruits, has small toxic and side effects, and greatly improves the safety.

The invention discloses a fruit and vegetable grafting wound healing nutrient solution containing polysaccharide complex enzyme and a preparation method, belongs to the technical field of agricultural biochemical preparations, and aims to solve the technical problems of low removal efficiency of necrotic tissues at grafting wounds and high risk of microbial infection. According to the technical scheme, the nutrient solution is characterized by being prepared from the following raw material components in parts by weight: 0.3 to 0.8 part of polysaccharide, 1 to 5 parts of cellulase, 0.5 to 2.5 parts of pectinase, 1 to 5 parts of glycerol and 90 to 100 parts of water. Wherein the pH value of the nutrient solution is adjusted to 5.0-6.5 by using a phosphate buffer agent, the polysaccharide is composed of chitosan and sodium alginate, the mass ratio of the chitosan to the sodium alginate is 1: 0.5-1: 2, the activity of cellulase in the nutrient solution is 100-500 U / mL, and the activity of pectinase in the nutrient solution is 50-250 U / mL. The nutrient solution is mainly used for promoting fruit and vegetable grafting wound healing, and application verifies that the nutrient solution can effectively improve wound healing quality and reduce infection risk in the grafting process of fruits and vegetables such as cucumbers, eggplants, peppers, tomatoes, litchis and oranges, and has a good application effect.

The invention discloses an application of a litchi LcCPC3 gene and an encoded protein thereof in delaying flowering of plants. The nucleotide sequence of the litchi LcCPC3 gene is shown as SEQ ID NO: 1; the amino acid sequence of the encoded protein is shown as SEQ ID NO: 2. According to the invention, the litchi LcCPC3 gene participates in regulating and controlling the flowering time of litchis and is an important regulating and controlling gene for flowering of the litchis, the litchi LcCPC3 gene can be used for regulating and controlling the flowering time of the litchis and stably flowering, and the litchi LcCPC3 gene has important application value for realizing stable yield of the litchis.

The invention relates to the technical field of litchi flower formation prediction, and discloses a litchi flower formation induction estimation method based on short, medium and long term prediction data, and the method comprises the following steps: constructing a static multi-source heterogeneous data set; constructing a climate data set; and acquiring satellite remote sensing data of the target area as a remote sensing data set. Inputting the static multi-source heterogeneous data set and the climate data set into a pre-trained XGBoost model to obtain a litchi flowering induction result of the target area; inputting the climate data set into a pre-trained LSTM model to obtain a florescence climate index of the target area; and obtaining a vegetation index from the remote sensing data set, fusing the vegetation index to obtain a first flowering index, fusing the first flowering index with the terrain index to obtain a second flowering index, and evaluating the flowering stability condition of the target area based on the second flowering index.

The invention belongs to the technical field of preparation of flavors and fragrances, and particularly relates to a litchi-flavor microcapsule essence composition and a preparation method thereof. The preparation method comprises the following steps: mixing modified cyclodextrin, an emulsifier, an initiator and water according to a weight ratio of (4-7): (0.5-0.6): (0.03-0.05): (56-62) to form a dispersion liquid; mixing an acrylate monomer, litchi essential oil and absolute ethyl alcohol according to a weight part ratio of (1-2): (3-4): (45-51) to form an oil phase; mixing the dispersion liquid and the oil phase according to the weight part ratio of 1: 1, heating to 75-80 DEG C, reacting for 2.5-3.5 hours to obtain microcapsule emulsion, and performing spray drying on the microcapsule emulsion to obtain the microcapsule essence composition. According to the preparation method, modified cyclodextrin is constructed and then polymerized and wrapped, so that the high-temperature resistance and the fragrance-holding and slow-release performance of the prepared microcapsule essence composition are improved.

The invention relates to an SNP molecular marker related to litchi fruit weight and application thereof, and belongs to the technical field of molecular biology. The SNP molecular marker related to the litchi fruit weight is based on a seedless litchi reference genome, the SNP molecular marker is located in a litchi SL05G0138630 gene coding region, and is located at the 27564818th basic group of a litchi chromosome 5, and the basic group is A or G. The application finds that a non-synonymous SNP site in a coding region of the litchi SL05G0138630 gene is closely associated with the litchi fruit weight phenotype, the variety with the weight of the litchi fruit can be efficiently identified by detecting the polymorphic site, the invention further discloses an identification method for the molecular level of the variety with the weight of the litchi fruit, and the molecular level of the variety with the weight of the litchi fruit can be identified by an SNP-based typing method. And cheap and accurate gene SNP typing can be achieved, so that the purpose of efficiently and accurately identifying the weight variety of the litchi fruit is achieved.

The invention discloses a litchi immunity related gene LcGLO1 as well as an encoding protein and application thereof. A litchi immunity related gene LcGLO1 is separated from litchi, the full-length cDNA of the gene is 1107 bp, and the nucleotide sequence of the gene is shown as SEQ ID NO: 1; the protein coded by the gene is a lipid transfer protein with the full length consisting of 368 amino acids, and the amino acid sequence is shown as SEQ ID NO: 2. Transcription pattern analysis and plant expression analysis find that the LcGLO1 gene can improve the resistance of plants to phytophthora, so that the litchi immune related gene LcGLO1 can be applied to the aspect of improving the disease resistance of the plants or breeding disease-resistant plants.

The invention provides a traditional Chinese medicine preparation for treating chronic prostatitis, and relates to the technical field of traditional Chinese medicine pharmacy. The traditional Chinese medicine preparation is prepared from black nightshade, hypericum perforatum, yam rhizome, rhizoma sparganii, common sage herb, chingma abutilon seed, polyporus umbellatus, uniflower swisscentaury root, corydalis amabilis, aspongopus, glossy privet fruit, fructus broussonetiae, radix ophiopogonis, tuber fleeceflower stem, day lily and liquorice. The traditional Chinese medicine preparation has the effects of clearing heat and promoting diuresis, promoting blood circulation to remove blood stasis, nourishing yin and soothing nerves and tonifying liver and kidney. The traditional Chinese medicine preparation disclosed by the invention has a remarkable treatment effect on CNP rats, and the prostate pathological injury condition and inflammatory response of the CNP rats are effectively relieved. In addition, the traditional Chinese medicine composition has a good treatment effect on relieving pain, frequent micturition, urgent urination, dysuria and other clinical symptoms and inflammation conditions of patients, and has a high total treatment effective rate on chronic prostatitis. The traditional Chinese medicine preparation provides a new scheme for treating chronic prostate.

The invention provides a litchi picking point identification method and system based on a spatial relationship between litchi stems and fruits, and the method comprises the following steps: 1, image collection: obtaining an image containing litchis and litchi stems; 2, processing the image through an image segmentation model, and recognizing litchis and litchis stems in the image; 3, for each detected litchi, calculating the center point of a bounding box of the detected litchi, and for each detected litchi stem, calculating the mass center of the detected litchi stem; 4, calculating the distance between each litchi central point and the mass center of each litchi stem, keeping the minimum distance, and then obtaining the midpoint of the minimum distance; a range circle is drawn on the basis of the relation between the midpoint and the mass center, the maximum circumcircle is determined on the basis of the range circle, and the intersection point of the maximum circumcircle and the litchi stem skeleton is the picking point. According to the invention, the positioning accuracy of the litchi picking point is improved.

The present application relates to a kind of fluoro-eth composition, plant growth regulator and its application, belong to the technical field of pesticide.The present application provides a kind of fluoro-eth composition, including flumetralin and ethephon, and the mass ratio of flumetralin and ethephon is flumetralin:ethephon=1:(0.05-20).The present application creatively combines control tip drug flumetralin and kill tip drug ethephon together to prepare fluoro-eth composition, and the compound preparation of flumetralin and ethephon can be used to control and inhibit litchi winter shoot, and its efficacy is mild, and the safe period is longer, and the safety is extremely high, compared with the conventional chemical control drug used alone, the control effect on litchi winter shoot is also more comprehensive and excellent, not only can control the germination of winter shoot, is conducive to the accumulation of tree nutrients, promotes flower bud differentiation, but also can have obvious control or kill shoot effect on the growth of litchi winter shoot that just sprouts certain length, so as to reduce the consumption of tree nutrients, lay a solid foundation for the stable yield of second year.

The present invention discloses a method for manufacturing UHPC components, which includes the following steps: (1) CNC foam mold carving: using CNC carving technology to realize the production of two foam molds in a 1:1 ratio of the template, one piece is processed to achieve a smooth surface of the foam mold, including visible seam strips, and is used for bottom mold remaking. The other piece is processed to achieve a smooth surface and is used for closing the cover plate; (2) cement board seed mold production: because the front texture of the template is a fine lychee surface (rough surface), the cement board is produced on the foam mold that requires bottom mold remaking using GRC technology, and after demoulding, the surface texture is achieved by sandblasting technology to achieve a rough surface effect. This method can ensure the accuracy and aesthetics of the component thickness and obtain a good double-sided effect. The surface texture is achieved through a silicone texture mold, the component is formed in one step, and the durability of the surface is guaranteed, solving the problems of insufficient compressive strength of UHPC, uneven settlement of the incorporated steel fiber, cracking of prefabricated products, and poor working performance of UHPC.

The present invention provides a fucoidan kombucha nutrient beverage and a preparation method thereof, belonging to the field of food processing. In a first aspect, the present invention provides a fucoidan kombucha nutrient beverage, the raw materials of which include water, oligofructose, lychee juice concentrate, kombucha fermentation broth, selenium-enriched black fungus peptide, fucoidan, calcium lactate, pectin, vitamin C, sodium hyaluronate, instant black tea powder, and taurine. In a second aspect, the present invention also provides a method for preparing the fucoidan kombucha nutrient beverage. Compared with existing technologies, the fucoidan kombucha nutrient beverage has significantly improved stability, flavor, taste, aftertaste, and anti-fatigue performance.

The utility model discloses a litchi maintenance pruning structure which comprises two sets of shearing parts, each shearing part comprises a handle and a knife edge, the handles and the knife edges are integrally connected, the two sets of shearing parts are hinged in a staggered mode, a protection component is further arranged on the surface of each handle, and each protection component comprises a telescopic sleeve arranged on the surface of the corresponding handle in a sleeving mode. Limiting screws are installed on the surface of the telescopic sleeve, a plurality of sets of limiting grooves matched with the limiting screws are distributed in the surface of the handle at equal intervals, the surface of the telescopic sleeve is further sleeved with an anti-skid sleeve, and anti-skid lines are arranged on the outer surface of the anti-skid sleeve. According to the multifunctional pruning knife, through the arrangement of the protection component, the length of the handle can be adjusted in the using process, pruning work of branches of different heights can be met, meanwhile, hands can be effectively prevented from being pinched when the multifunctional pruning knife is used, and after the multifunctional pruning knife is used, the multifunctional pruning knife can be conveniently stored, and accidents are prevented.

The invention relates to the field of cosmetics, in particular to a two-way fermentation method, a litchi processing byproduct fermentation product and cosmetics. Comprising the following steps: inoculating a schizophyllum commune strain into a culture medium for fermentation; the culture medium comprises litchi processing by-products and saccharides; the litchi processing byproducts comprise litchi shells and / or litchi seeds; wherein in the culture medium, the mass ratio of the litchi processing byproducts to the saccharides is (1%-8%): (0.4%-2%). According to the technical scheme, the schizophyllum commune is used as an original strain to ferment the litchi processing byproducts, so that the schizophyllum commune can be promoted to secrete the lyophyllum commune polysaccharide SPG, and the release amount of rutin in the litchi processing byproducts can be effectively increased. Meanwhile, the rutin and the lyophyllum commune polysaccharide SPG are stably combined, and the rutin and the lyophyllum commune polysaccharide SPG can stably exist without additional polyhydric alcohols. The prepared fermentation product rich in SPG and rutin not only has the oxidation resistance of rutin, but also achieves the anti-inflammatory and anti-aging effect.

The invention belongs to the field of traditional Chinese medicine analysis and quality control, and relates to a specific chromatogram construction method and a quality control method of a salvia plebeia sample. The specific chromatogram construction method comprises the following steps: 1) preparing a test solution, a reference solution and a reference medicinal material solution; (2) carrying out ultra-high performance liquid chromatography to obtain a corresponding chromatogram; and 3) taking the chromatograms of the reference substance and the reference medicinal material as a contrast, determining a characteristic peak from the chromatogram of the test solution, and constructing a characteristic spectrum. Meanwhile, on the basis of qualitative analysis of the characteristic chromatogram, quantitative analysis of rosmarinic acid is added, and the quality control method of the salvia plebeia sample is relatively comprehensively established. The method is simple to operate, and methodology verifies that the reproducibility and stability are good, the recovery rate is reliable, the detection cost is low, the detection efficiency is high, and an important guarantee is provided for standard production of salvia plebeia samples.

The utility model provides a special vacuum barrel for fresh-keeping of fresh litchis, which relates to the technical field of fresh-keeping of litchis and comprises an outer barrel, and the inner surface of the outer barrel is fixedly connected with a first interlayer. According to the utility model, when the vacuum barrel is used for fresh-keeping storage of litchis, the litchis can be tiled in the plurality of placing frames in a layered manner, after the litchis are placed in the placing frames, water drops can drop to the bottoms of the placing frames through the filter holes, and accumulated water at the bottoms of the placing frames can enter the drainage pipes through the notches; water flows into the water collecting box through the drainage pipe to be stored, the collected water can be drained by opening the drainage valve, and the litchis are stored in a dry and comfortable state all the time by filtering water through the filter plate and draining and collecting water through the drainage pipe; the influence on the freshness of the litchis caused by accumulated water on the surfaces or branches and leaves during storage can be avoided, and the fresh-keeping effect on the litchis is improved.

The invention belongs to the technical field of agricultural planting, and particularly relates to a litchi planting method. The land parcels with the gradient smaller than or equal to 5 degrees are selected, organic fertilizer and inorganic fertilizer are applied in the planting pits, and follow-up daily management is facilitated; wide and narrow rows are arranged for planting the litchi seedlings, so that the planting structure of the litchi seedlings is optimized, the light receiving area and the ventilation condition are improved, plants on the unit area can obtain more effective illumination radiation, accumulation of photosynthetic products is increased, and the yield of the unit area is increased. Therefore, after the technical scheme provided by the invention is applied, the total sugar content and the vitamin C content of the litchis are increased, the quality of the litchis is improved, and scientific guidance is provided for planting of the litchis.

The invention provides an ultrahigh pressure sterilization device for litchi juice production, and belongs to the technical field of food non-thermal processing. The device comprises a high-strength ultrahigh-pressure cavity, a pressurizing pump, an inert gas protection tank, a temperature regulation and control module, a tank body sealing cover and an intelligent control cabinet. During working, nitrogen or argon is filled before pressurization to replace oxygen in the cavity, so that the oxygen concentration is less than or equal to 1%; and then maintaining the pressure for 2-8 minutes under the conditions that the pressure is 300-600 MPa and the temperature is 5-25 DEG C, so that efficient sterilization is realized, browning is effectively inhibited, and vitamin C and natural flavor are reserved. The device adopts the mesh basket with micropore distribution to ensure uniform pressure transmission, integrates automatic discharging and CIP cleaning functions, and is suitable for continuous production of pulp-containing litchi pulp. The total bacterial count of the treated litchi juice is smaller than or equal to 10 CFU / mL, the retention rate of vitamin C is larger than or equal to 90%, the color difference change is small, and the shelf life at 4 DEG C reaches 30 days or above and is remarkably superior to that of a traditional heat sterilization process.