26results about How to "Increase selenium content" patented technology

The embodiment of the invention discloses plant lactobacillus, selenium-enriched lactic acid bacteria and application of the plant lactobacillus and the selenium-enriched lactic acid bacteria in preparation of selenium-enriched food, the plant lactobacillus is inoculated into a sodium selenite solution, and the selenium-enriched lactic acid bacteria are obtained through culture. Adding the selenium-rich lactic acid bacteria into the pickled bamboo shoot brine containing the pickled bamboo shoots, and fermenting to obtain the selenium-rich fermented pickled bamboo shoots. The plant lactobacillus with high selenium conversion rate is obtained, the prepared selenium-enriched lactic acid bacteria have wide application, the selenium-enriched lactic acid bacteria can be applied to preparation of selenium-enriched food, the selenium content in the food is greatly increased, for example, the physicochemical properties of the selenium-enriched fermented pickled bamboo shoots prepared in the invention are improved compared with those of traditional pickled bamboo shoots, and the selenium-enriched fermented pickled bamboo shoots have good market prospects. Good oxidation resistance is realized.

The invention relates to a preparation method of a cultivation material for cultivating selenium-rich black fungus, which comprises the following steps: respectively preparing a slow-release sodium chlorate composite material and a slow-release selenium-containing mineral material, and then mixing with carbon nutrition, nitrogen nutrition and mineral nutrition to obtain the cultivation material. The slow-release selenium mineral material is a polymer-coated slow-release selenium mineral material prepared by the following steps: preparing a selenium mineral core material from selenium powder, gypsum, calcium superphosphate, monopotassium phosphate, calcium sulfate, diatomite, nano silicon dioxide and a surfactant OP-10, preparing a coating material, adding the selenium mineral core material, and soaking with a Bis-Tris buffer solution. Sodium chlorate and selenium are respectively prepared into specific slow release systems, and are slowly released in the cultivation material to react to generate a seleninic acid component which can be easily absorbed and utilized by the black fungus, so that the concentration of seleninic acid in the cultivation material is regulated, the growth of the black fungus is promoted, the yield of the black fungus is increased, the quality of the black fungus is remarkably improved, and the cultivation cost is reduced. The selenium content and the amino acid content in the black fungus are obviously increased.

The invention discloses a planting method of selenium-rich cherries. The planting method comprises the following steps that selenium-containing fertilizer is applied to soil in a flushing mode when tree bodies germinate at the end stage of a dormancy period; in the flowering stage, nitrogen-phosphorus-potassium balanced fertilizer is applied, and the synergist composition and the selenium-enriched nutritional agent are sprayed on leaf surfaces at intervals; and spraying the synergist composition and the selenium-rich nutritional agent on leaf surfaces at intervals for multiple times in a fruit swelling period. The synergist composition disclosed by the invention is prepared from the following components: polyoxyethylene fatty alcohol ether, polyether modified organic silicon, natural plant saponin, chitosan oligosaccharide, alginic acid, hydrolyzed collagen and the like. The selenium content of the cherry fruits cultivated by the method can reach 0.078-0.082 mg / kg, after the cherry fruits are stored for 15 days, the hardness of the fruits is maintained at 65-68.5 N / cm < 2 >, the weight loss rate is controlled at 4.0-4.5%, the rotting rate is controlled at 3.2-3.8%, the retention rate of vitamin C reaches 83-86%, and the storage period is prolonged by 3-4 days compared with that of conventional cultivation. The method is easy to operate, low in cost and high in applicability, and the quality and storage performance of the cherry fruits can be remarkably improved.

The invention discloses halomonas for efficiently synthesizing nano-selenium as well as a method for preparing the nano-selenium and application of the halomonas, and belongs to the technical field of biology. The Halomonas sp. CCTCC NO: M 20242266 disclosed by the invention has strong tolerance to high-concentration selenite, can efficiently convert the selenite into nano-selenium, and is simple in required culture condition, low in cost and easy to operate; the nano-selenium particles produced by utilizing the strain disclosed by the invention are stable in property and high in biological activity. The Halomonas sp. CCTCC NO: M 20242266 or a microbial agent of the Halomonas sp. CCTCC NO: M 20242266 or nano-selenium produced by utilizing the strain has wide development prospects in the fields of functional agriculture including planting industry and breeding industry, functional food processing, health food processing, medical product processing and the like.

The invention discloses a selenium-rich day lily fertilizer which comprises the following components in percentage by weight: 1.8-2.1 parts of a sodium selenite solution, 5.5-6.5 parts of a fulvic acid solution, 1.4-1.6 parts of a gibberellin 3 solution, 0.4-0.6 part of orange peel essential oil and 980-1000 parts of water, and discloses a preparation method and a use method of the selenium-rich day lily fertilizer. The problem that no fertilizer for selenium-rich day lily exists is solved.

The invention provides an organic selenium-rich microbial inoculum as well as a preparation method and application thereof, and relates to the technical field of microbial inoculum. The organic selenium-rich microbial inoculum comprises selenium-substituted amino acid; based on 100 parts by mass of organic selenium, the content of the seleno-amino acid in the organic selenium-rich microbial inoculum is not less than 5%. The invention further provides a preparation method and application of the organic selenium-rich microbial inoculum. The organic selenium-rich microbial inoculum provided by the invention overcomes the defect that the conversion rate is low when inorganic selenium is converted into organic selenium by microorganisms in the prior art.

The invention provides a selenium-rich bio-organic fertilizer and a preparation method thereof, and belongs to the technical field of organic fertilizers. The selenium-rich biological organic fertilizer is prepared from the following raw materials: chicken manure, corn straws, aspergillus niger, saccharomycetes, aspergillus oryzae, selenium-rich polyaspartic acid calcium salt, zinc sulfate, boron sulfate, ferrous sulfate, bacillus subtilis, paenibacillus mucilaginosus, chitosan oligosaccharide, iminodisuccinic acid and algal polysaccharides. The selenium-rich polyaspartic acid calcium salt is used as a selenium source, the chicken manure and the corn straw are used as organic raw materials, the organic fertilizer is produced through fermentation by adopting a specific fungicide, and meanwhile, the biostimulant and the seaweed extract are added, so that selenium enrichment of crops is promoted. Meanwhile, the content of water-soluble heavy metal in soil is reduced, the urgent damage of the heavy metal to crop growth is reduced, nutrients such as nitrogen, phosphorus and potassium are fixed, crop growth is promoted, and the crop yield is increased.

The invention belongs to the technical field of selenium-rich blueberry planting, and particularly relates to a selenium-rich blueberry cultivation method which comprises the following steps: S1, selecting a proper variety according to climate conditions of a planting field; s2, selecting a place with loose soil, rich organic matters and good drainage for planting; s3, the selected soil is subjected to impurity removal, and meanwhile protection facilities are built around the soil; s4, planting pre-selected high-quality nursery stocks in the planting furrows or holes between autumn without drought in winter and early spring germination; the invention innovatively proposes that in the early stage, the middle stage and the later stage of selenium-rich blueberry growth, the selenium absorption of blueberry leaves is realized by accurately spraying an inorganic selenium solution. And the cost is low. Meanwhile, the selenium content of the blueberries is rapidly increased. According to the method, the problems of enrichment nonuniformity and low absorptivity possibly caused by soil selenium application are solved. Therefore, the selenium content of the selenium-rich blueberries is greatly increased, and the overall quality and yield of the blueberries are remarkably improved.

The invention relates to the technical field of tea garden fertilization, and discloses a selenium-rich tea planting method which comprises the following steps: step 1, soil improvement: selenium-containing soil site selection is carried out; 2, preparing a fertilizer: preparing a compound selenium-rich fertilizer with high selenium content; step 3, application of selenium-rich fertilizer: applying the selenium-rich fertilizer according to a set selenium-rich fertilizer application ratio range in combination with the growth cycle of the tea trees; step 4, reasonable irrigation: adopting a spray irrigation mode, adding a selenium-rich solution with a set proportion into irrigation water, and monitoring soil humidity by using an online monitoring instrument at the same time; according to the tea planting method, the measures of selenium-rich soil selection, selenium-rich fertilizer application, selenium source fertilizer preparation and use, selenium-rich solution irrigation and scientific pruning are taken, the selenium content in the tea can be effectively increased, the selenium content in the tea can be effectively increased, the yield of the tea can be increased, and the yield of the tea can be increased. The problem of low selenium content of tea leaves is solved.

The invention belongs to the field of meat product processing, and particularly relates to a selenium-rich meat product and a processing method thereof. The invention provides a selenium-rich meat product, the selenium-rich meat product comprises selenium-rich pork and seasonings, and the seasonings comprise edible salt, chilli powder, Chinese prickly ash powder, dark soy sauce and oyster sauce. According to the method disclosed by the invention, the selenium-enriched pork is thermally processed on the basis of a low-temperature vacuum slow cooking technology, and volatilization and liquefaction of selenium compounds in the processing process of the selenium-enriched pork are reduced by reducing the processing temperature, so that the problems of low oxidation resistance and low bioavailability of the selenium-enriched pork are solved, and the quality of a final selenium-enriched pork product is improved.

The invention belongs to the technical field of aquatic product breeding feeds, and particularly relates to a selenium-rich feed and a selenium-rich abalone breeding method. The selenium-enriched feed is prepared from the following components in parts by weight: 0.5 to 5 parts of selenium-enriched extract, 15 to 25 parts of fish meal, 15 to 30 parts of kelp powder, 5 to 15 parts of glucose, 1 to 5 parts of yeast, 5 to 15 parts of soybean meal, 15 to 35 parts of wheat flour, 15 to 45 parts of sargassum powder and 5 to 15 parts of spirulina powder. The selenium-rich feed has very high selenium content and relatively low cellulose content, and the abalone pleopod fed by the selenium-rich feed also has relatively high selenium content.

The invention discloses a selenium-rich liquid fertilizer and a selenium-rich coriander planting method, and belongs to the technical field of selenium-rich crop planting, and the selenium-rich liquid fertilizer comprises a basic selenium-rich liquid fertilizer and a growth regulator. The selenium-rich basic liquid fertilizer and the growth regulator are cooperatively used and are sprayed in a specific growth period, so that the selenium content, the reducing sugar content, the total flavone content, the hydroxyl radical scavenging rate and other indexes in the coriander are remarkably improved, and the coriander is rich in nutritional ingredients and remarkable in selenium content. In addition, the growth regulator and the selenium-rich liquid fertilizer provide a new thought for planting of aromatic crops including coriander.

The invention discloses a sodium selenite composite liquid for increasing the selenium content of soybeans and application thereof, relates to the field of soybeans, and aims to increase the selenium content, especially the organic selenium content, of Dongnong beans 358 so as to improve the cholesterol reduction capability of the Dongnong beans 358. The provided sodium selenite composite liquid is composed of a sodium selenite solution, arbuscular mycorrhizal fungi and a ganoderma lucidum sporocarp solution. Wherein the concentration of sodium selenite in the sodium selenite composite liquid is 30-100 mg / L, the total bacterial count of arbuscular mycorrhizal fungi is 1 * 10 < 8 >-1 * 10 < 10 > CFU / mL, and the concentration of the ganoderma lucidum sporocarp solution is 10-20 mg / L. The ganoderma lucidum sporocarp is added, so that the selenium enrichment amount of Dongnong bean 358 soybeans is remarkably increased, the conversion rate of organic selenium is improved, the selenium content of Dongnong bean 358 is increased, especially the content of organic selenium is increased, and the cholesterol lowering effect of Dongnong bean 358 is improved. The market value is improved.

The invention provides hydrothermal carbon-based biological nano-selenium as well as a preparation method and application thereof, the hydrothermal carbon-based biological nano-selenium is prepared by taking a selenium-resistant functional strain as a chassis cell and inorganic selenium as a precursor substance; then, with garden waste as a carbon-based raw material and biological nano-selenium as a selenium source, synthesizing hydrothermal carbon-based biological nano-selenium through a one-step hydrothermal carbonization method; finally, the obtained hydrothermal carbon-based biological nano-selenium is applied to harmful substance removal and biomass energy production of an arsenic-containing breeding wastewater anaerobic digestion system. The preparation process of the hydrothermal carbon-based biological nano-selenium is the combination of biological fermentation and hydrothermal reaction, the method is green, safe and low in energy consumption, the arsenic content in an anaerobic digestion final product of the aquaculture wastewater and the abundance of antibiotic resistance genes (ARGs) and pathogenic bacteria can be effectively reduced by adding the hydrothermal carbon-based biological nano-selenium prepared by the method into the arsenic-containing aquaculture wastewater, and the yield of the aquaculture wastewater is improved. Meanwhile, the methane yield is increased.

The invention discloses identification, characterization and expression analysis of cardamine violifolia WRKY transcription factors and a regulation effect of the cardamine violifolia WRKY transcription factors in selenium accumulation, and belongs to the technical field of biology. WRKY gene family members in cardamine violifolia genes are comprehensively identified, and 120 CvWRKY genes are totally identified. The physical and chemical properties, chromosome localization, phylogeny, gene structure, conserved motif, cis-acting element and colinearity of CvWRKY family gene protein are comprehensively analyzed, and a foundation is laid for understanding the evolutionary relationship and gene function of the CvWRKY gene family. The research finds that the expression level of the CvWRKY34 is in significant positive correlation with the selenium content; meanwhile, both the CvWRKY34 and the CvWRKY021 respond to the induction of Na2SeO3, and the main contribution of the CvWRKY34 and the CvWRKY021 is possibly positive regulation of the selenium absorption process of the root. The research on the cardamine violifolia WRKY family lays a theoretical foundation for analyzing the contribution of the WRKY gene in the high selenium accumulation capacity of the cardamine violifolia, and provides an important clue for functional verification of the cardamine violifolia.

The application provides a bacillus megaterium and application of the bacillus megaterium in preparation of nano selenium organic fertilizer for increasing selenium content of tea, and belongs to the technical field of microorganisms, wherein the bacillus megaterium NT2 is preserved in China Center for Type Culture Collection, and the preservation number is CCTCC NO:M 20251806; the bacillus megaterium NT2 has strong tolerance and reduction capacity to selenium elements, can survive in high-concentration inorganic selenium, and reduce the inorganic selenium into nano selenium, and has weak capacity to enrich arsenic, cadmium and lead; can be mixed with high-temperature calcination activated high-selenium rock powder to carry out mixed fermentation, to prepare a selenium source of nano selenium organic fertilizer, to increase the selenium content of tea while ensuring that the heavy metal content does not exceed the national standard. The bacillus megaterium provided by the application can reduce the toxicity of inorganic selenium in high-selenium rock and convert it into nano selenium, and can stably, safely and standardly produce selenium-rich tea, so that the heavy metal content of tea does not exceed the standard, and the application has a broad market prospect.

The application provides a preparation method of selenium-rich rice vermicelli and belongs to the technical field of food processing. The preparation method comprises the steps of rice pretreatment, selenium-rich rice bran pretreatment, raw material mixing, grinding, steamed powder extrusion, cooling and shaping, drying and packaging, and parameters of each step are optimized to ensure that process stability and product quality are improved simultaneously. Through the composite pretreatment process, the synergistic effect is realized, the selenium content of the finished product is greater than or equal to 0.5 mg / kg, the GI value is less than or equal to 55, the selenium bioavailability is greater than or equal to 65%, the breakage rate is 0%, the cooking loss is less than or equal to 6.7%, the rehydration rate is about 125%, the color is white and uniform, and no visible impurities are observed; the total drying time is shorter than that of the prior art, the method is suitable for industrial grinding production system, and the nutritional health, food quality and production efficiency are considered.

The invention provides a selenium-rich annona squamosa production method which comprises the following steps: S1, in an annona squamosa flower bud differentiation period, carrying out selenium solution irrigation treatment on annona squamosa trees for three times at an interval of about 30 days; s2, in the flowering and fruit-setting period of the annona squamosa, spraying a selenium solution to the annona squamosa tree twice at an interval of about 30 days; s3, synchronously implementing irrigation treatment in the step S1 and spraying treatment in the step S2 on the annona squamosa trees. The selenium content of the produced annona squamosa fruits is remarkably increased, the functional value of the selenium element is added on the basis that original nutrition is reserved, the annona squamosa fruits are transformed into special functional fruits, the oxidation resistance of the fruits is improved to different degrees, and the comprehensive quality is improved.

The application discloses a CsPHT1;3 gene for modifying tea absorption of selenium elements and application thereof in feed, relates to the field of agricultural genetic engineering, and discloses that the CsPHT1;3 gene is a gene mutation of D144K and T150V on GenBank:OP219455.1, and the amino acid sequence after the mutation is shown as SEQ ID No:01; the tea tree CsPHT1;3 gene improves the D144K and T150V gene mutation seedlings, the new variety cultivated by the application can improve the selenium content and antioxidant capacity of selenized tea polysaccharide without being affected by the change of pH 5-7; the high-selenium tea leaves are mixed with the feed to obtain selenium-supplemented feed, and the demand of the present high-end feed market is met.

This invention discloses the production technology and usage method of high-selenium-enriched rice, including the following steps: screening and determining high-selenium-enriched rice varieties; fertilizer formulation and application for selenium-enriched rice cultivation; determining the key period for selenium supplementation in rice; selecting the time for selenium supplementation operations; application of organic selenium-rich plant nutrients and control of selenium supplementation frequency; harvesting and processing high-selenium-enriched rice; determining the graded consumption amount of selenium-enriched rice for healthy individuals; implementing a phased consumption plan for selenium-enriched rice for sub-healthy individuals; and implementing personalized consumption and supplementary selenium supplementation plans for individuals with special conditions. This invention integrates two core modules: standardized production technology for high-selenium-enriched rice and graded personalized consumption methods, forming a systematic solution for the entire process from planting to consumption. It breaks through the industry bottleneck of the existing disconnect between selenium-enriched rice production and consumption, and improves the effectiveness and scientific nature of selenium supplementation through selenium-enriched rice.

The invention relates to the field of nutrient soil, in particular to compound selenium-rich nutrient soil for planting and a preparation method thereof, and aims at solving the problems that traditional nutrient soil cannot effectively maintain moisture, depends on a large amount of chemical fertilizer to supplement nutritional ingredients and is difficult to effectively increase the selenium content in crops. The nutrient soil contains various nutritional ingredients, can provide comprehensive nutrition for plants and promote growth and development of the plants, can improve the moisture and fertilizer retention capacity of the nutrient soil, reduce the loss of moisture and nutrients and improve the utilization rate of the nutritional ingredients after the compound water-retaining agent is added, and can improve the selenium content in the nutrient soil after the sodium selenite is added. The selenium-rich organic fertilizer provides sufficient selenium elements for plants, so that selenium-rich agricultural products are produced, and by adding the fermentation inoculants, the soil structure can be improved, the soil fertility can be increased, and the air permeability and the water-retaining property of soil can be improved; the preparation method of the nutrient soil is simple, easy to operate and suitable for large-scale production.

The invention discloses a wheat unmanned aerial vehicle foliage spraying selenium fertilizer quantity limiting method based on the yield level, belongs to the technical field of agricultural fertilization, and aims at solving the problem that in the prior art, the selenium fertilizer quantity is not limited when an unmanned aerial vehicle is used for applying selenium fertilizer, and the human body is affected by excessive or insufficient selenium fertilizer. Acquiring wheat grain selenium content and soil effective selenium content data; comparing the selenium content of the wheat grains with the effective selenium content of the soil; when the selenium content of the wheat grains and the effective selenium content of the soil are both lower than a preset threshold value, the unmanned aerial vehicle sprays selenium fertilizer on leaf surfaces; otherwise, the unmanned aerial vehicle does not spray the selenium fertilizer on leaf surfaces; according to the wheat yield level and the fertilizer loss during spraying of the unmanned aerial vehicle, the selenium fertilizer foliage spraying limit of the unmanned aerial vehicle is determined. By limiting the application amount of the selenium fertilizer, the selenium content of wheat grains can be effectively increased under the condition of ensuring grain safety, the aim of strengthening the human body is achieved, and the influence of insufficient selenium content on the human body is avoided.

The invention discloses a high-selenium-content aster katsumadai and a culture method thereof. The culture method comprises the following steps: culturing seedlings of aster katsumadai, after culturing for 15 days, applying a selenium-containing nutrient solution or a selenium-containing fertilizer, then regularly supplementing and applying the selenium-containing nutrient solution or the selenium-containing fertilizer until harvesting, and after applying the selenium-containing nutrient solution or the selenium-containing fertilizer for the first time, spraying a selenium absorption accelerant every 7-10 days until harvesting. The selenium absorption enhancer is a proper amount of zeatin or abscisic acid or spermidine. According to the method, in the cultivation process, by adding a proper amount of compound selenium and strictly limiting the concentration of selenium, a high-selenium-enriched aster katsumadai plant can be obtained, the edible value of the aster katsumadai plant can be greatly increased, in addition, by adding a proper amount of zeatin, abscisic acid and spermidine in the cultivation process, the selenium content of the root of the aster katsumadai can be greatly increased, and the yield of the aster katsumadai can be increased. The nutritional value and the medicinal value are greatly improved.

The application discloses a bamboo shoot yield-increasing additive and a preparation method thereof, and belongs to the technical field of bamboo shoot cultivation, and comprises bitter bamboo sawdust, chitosan nano selenium, corn starch, ethanol, pectin, calcium chloride, enzyme, mannose and aloe-emodin. The prepared bamboo shoot yield-increasing additive is mixed with soil to serve as a cultivation substrate for cultivating bamboo shoots, so that the growth of the bamboo shoots can be better promoted, the growth cycle of the bamboo shoots can be shortened, the yield of the bamboo shoots can be improved, and finally, the cultivated bamboo shoots have good yield and selenium content.

The invention discloses a planting method for improving the selenium content of tartary buckwheat grains, and particularly relates to the field of agricultural planting, the method comprises the following steps: selecting a tartary buckwheat variety in a tartary buckwheat main producing area; determining a proper selenium application period; setting a selenium source and selenium application amount; leaf surface spraying is conducted on plant leaves; and after the tartary buckwheat seeds are mature, determining the selenium content of the seeds by using a hydride atomic fluorescence spectrometry. On the premise of ensuring food safety, the selenium content of the tartary buckwheat grains is increased, and the yield is considered.

This invention belongs to the field of animal husbandry and deep processing of agricultural products, specifically relating to a method and its application for cultivating low-cadmium, selenium-rich mealworms using cadmium-containing feed. Specifically, this invention involves adding a low concentration of selenium to a cadmium-containing bran and rice bran feed to raise 3rd-4th instar mealworms. In the later stages of rearing, the mealworms are transferred to a selenium-only feed for cadmium removal, ensuring that the cadmium content in the mealworms does not exceed relevant standards and achieving the goal of efficiently treating cadmium-containing agricultural waste and obtaining low-cadmium, selenium-rich mealworm products. Finally, lipids in the mealworm powder are extracted in one step using low-boiling-point petroleum ether to obtain low-cadmium, selenium-rich mealworm protein powder. In summary, this invention is simple, low-cost, and can efficiently process cadmium-containing materials while simultaneously yielding low-cadmium, selenium-rich, high-quality mealworm products and mealworm protein powder, without affecting mealworm yield. It achieves multiple benefits and has good practical application value.