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196 results about "Nutritional deficiency" patented technology

Definition of nutritional deficiency.: an inadequate supply of essential nutrients (as vitamins and minerals) in the diet resulting in malnutrition or disease.

Optical sensor device and image processing unit for measuring chemical concentrations, chemical saturations and biophysical parameters

Optical sensor devices, image processing devices, methods and computer readable code computer-readable storage media for detecting biophysical parameters, chemical concentrations, chemical saturations, vital signs and physiological information such as a malignant condition are provided. In some embodiments, the optical sensor includes an array of photodetectors, where each photodetector is configured to detect a spectrum of light. In some embodiments, the image processing device receives a live still or video electronic image, or alternatively, the electronic image is provided from an electronic storage media. Exemplary physiological parameters include but are not limited to a pulse rate, a biophysical or physiological property of skin, a cardiovascular property, a property related to an organ such as the liver or the kidneys, and a temperature fluctuation. In some embodiments, the physiological parameter is indicative of a malady including but not limited to an autoimmune disease, a cancer, a nutritional deficiency, a malignant condition of bone marrow, a present of an infectious microbe such as a fungus, a present of hepatitis, and a cardiovascular disorder a pulmonary disorder. Exemplary chemical concentrations include but are not limited to a chemical saturation, a pH level, a pH level in blood vessels such as capillarys or in skin, a glucose level such as a blood glucose level, a urea nitrogen level such as a blood urea nitrogen level, a CO2 level such as a blood CO2 level or a CO2 saturation level, and an oxygen level such as a blood oxygen level or a blood oxygen saturation level. In some embodiments, the biophysical parameter, physiological parameter or chemical concentration is obtained from reflecting light from tissue from a mammalian subject. Alternatively one or more of these parameters are detected from a food item such as food tissue, a consumable beverage such as an alcoholic beverage, a dairy product, wine, a baked good, a fruit and a vegetable. Exemplary parameters related to food items include but are not limited to a parameter indicative of cooking or spoilage, a pH, a concentration of an antioxidant, and a concentration of an anti-inflammatory agent.
Owner:CNOGA HLDG LTD

Compositions and methods of treating chronic kidney disease

InactiveUS20080317725A1Treat and prevent skeletal muscle wastingHigh in proteinBiocideHeavy metal active ingredientsNutritional deficiencyChronic renal disease
The invention relates to nutritional compositions and methods of using these compositions for the treatment of renal disease. More particularly, the invention discloses compositions of vitamins, minerals, amino acids, and / or proteins in amounts that can be used to supplement the nutritional deficiencies observed in patients afflicted with renal disease, renal insufficiency, or end-stage renal disease. The compositions of the invention can also be used as nutritional supplements for patients undergoing dialysis therapy or for patients on a restricted diet. In addition, the compositions can be used in combination or alone as a method of treating or managing a subject in the various stages of chronic renal disease, or throughout disease progression.
Owner:BAUM SETH J

Method and system for creating and using a supplement to balance animal diets

ActiveUS20060240150A1Less-expensive and convenientVitamin food ingredientsAcidic food ingredientsNutritional deficitNutritional deficiency
The present invention provides a computer program for determining the optimum diet of an animal, determining what nutritional deficiencies exist in that diet, and formulating a supplement to correct those deficiencies. It allows the creation of a nutritionally complete and balanced diet with a sufficient but not excessive quantity of water, energy, protein, fat, carbohydrate, amino acids, fatty acids, vitamins, minerals, and vitamin-like nutrients. The specific compositions of supplements generated using the computer program are also claimed.
Owner:DELANEY SEAN JOSEPH

Formulations and methods for nutrient delivery

The present disclosure provides formulations and methods for delivering water-soluble and lipid-soluble nutrients for preventing or correcting nutrient deficiencies to subjects requiring small-volume nutritional support, such as preterm infants. The formulations may comprise an emulsion of docosahexaenoic acid (DHA) stabilized by a protein emulsifier, such as α-lactalbumin, and may further comprise other valuable nutrients, such as arachidonic acid (ARA), arginine, glutamine, arginyl-glutamine dipeptide and / or alanyl-glutamine dipeptide. The formulation is useful, for example, for correcting nutritional deficiencies by increasing a subject's intake of nutrients such as ω-3 or ω-6 long-chain polyunsaturated acids, proteins, peptides, vitamins, minerals, other fatty acids, and / or essential amino acids. The nutritional formulation is suitable for enteral delivery and small-volume delivery via nasogastric tube, intragastric feeding, transpyloric administration and / or any other means of administration that result in the introduction of the nutritional formulation into the digestive tract of a subject.
Owner:MEAD JOHNSON NUTRITION

Slow-release fluid suspension composite fertilizer and its preparation method and use method

The invention provides slow-release fluid suspension composite fertilizer. The slow-release fluid suspension composite fertilizer comprises 30-200 parts of fertilizer nutrients, 0.05-2 parts of a thickening agent, 0.1-4 parts of a suspending agent, 0.1-3 parts of an emulsifier, 0.05-1 part of a nitration inhibitor and 0-15 parts of water. The fertilizer nutrients comprise nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, humic acid and trace elements and also contain at least one quick-acting fertilizer and at least one slow-release fertilizer. The invention also provides a preparation method and a use method of the slow-release fluid suspension composite fertilizer. The slow-release fluid suspension composite fertilizer has the advantages of the existing fluid suspension and is ternary liquid fertilizer containing the quick-acting and slow-acting nutrients, trace elements and humic acid, prolongs fertilizer efficiency of the suspension fertilizer, realizes combination of trace elements, humic acid and fertilizer, continuously and stably provides nutrients needed by crop growth and development, and solves the problems of nutritional deficiency symptom and later fertilizer removal in crop growth.
Owner:DONGGUAN YIXIANG LIQUID FERTILIZER +1

Saline-alkali soil conditioner

InactiveCN104591926AImprove deficiency symptomsEnhance salt-alkali resistanceSuperphosphatesMagnesium fertilisersPlant rootsSodium Bentonite
The invention relates to a composition for improving soil, in particular relates to a saline-alkali soil conditioner. The saline-alkali soil conditioner is prepared by mixing the following components by weight percent: 20%-35% of sulfur powder, 20%-30% of humic acid, 5%-10% of bentonite, 20%-25% of magnesium sulfate heptahydrate, 8%-12% of calcium superphosphate, 1%-2% of zinc sulfate heptahydrate and 2%-3% of boric acid. The saline-alkali soil conditioner can be used for regulating acid-base level of the soil, and effectively supplementing microelements in the soil, improving the nutritional deficiency symptom of crops, chelating harmful heavy metal elements in the soil, reducing saline and alkali degree, promoting the soil to form a granular structure, improving root growth environment of crops, enhancing saline and alkali resistance of crops, disease resistance and cultivation of resilience, reducing the harm of saline and alkali to plant roots, and releasing the effective phosphorous solidified by the soil, increasing soil fertility, holding water and saving fertilizer so as to finally and completely improve the soil, recover the soil fertility, increase both production and income and improve crop quality and utilization rate of the fertilizer.
Owner:SHANDONG JINHUANGYU BLUE SOIL MODIFIED ORGANISMS CO LTD

Systems for and Methods of use of Therapeutic Nutrition for the Management of Age-Associated and Age-Specific Health Conditions of the Elderly

InactiveUS20090203606A1Effective therapeutic specific nutritional supportEffective carrierBiocidePeptide/protein ingredientsRegimenNutritional deficiency
Nutritional compositions which provide for improved taste profiles for the elderly while simultaneously providing nutrition specific to assist in the management of nutritional deficiencies that lead to age specific and age associated health conditions in the elderly. There are also provided products using these compositions and incorporating packaging design, volume delivery, and sensory attributes to improve nutritional regimen compliance in the elderly.
Owner:ENERGY LIGHT

Chelated liquid fertilizer containing multiple types of plant alcohols and medium trace elements and preparation method of liquid fertilizer

The invention relates to a chelated liquid fertilizer containing multiple types of plant alcohols and medium trace elements, which is applied in the field of agriculture and forestry. The liquid fertilizer consists of the following main materials in parts by weight: 80-450 parts of soluble plant alcohols, 1-10 parts of calcium nitrate, 0.5-3.5 parts of zinc sulfate, 0.1-2.5 parts of manganese sulfate, 0.5-5 parts of magnesium sulfate, 0.1-2.5 parts of ferrous sulfate, 0.03-0.08 part of cobalt chloride, 0.01-0.05 part of ammonium molybdate and 0.2-1.0 part of boric acid. The pH value of the liquid fertilizer is adjusted to be neutral with slightly stronger acidity by adding an appropriate amount of water. The liquid fertilizer contains the multiple types of plant alcohols and has the capabilities of activating the biological activity of crops and enhancing the adsorption to the medium trace elements of the crops and the antioxidation of the crops; and the medium trace elements are capable of promoting the healthy growth of the crops and correcting the nutritional deficiency symptom of the crops. The liquid fertilizer has the characteristics of simple processing technology, low production cost, high fertilizer efficiency and the like; the liquid fertilizer is suitable to serving as a toot system and leaf top application for fruit trees, vegetables and field corps, and is particularly suitable to supplying medium trace element nutrition to the leaves or fruits during the late growth period of the fruit trees. The liquid fertilizer with multiple elements is extensive in application.
Owner:GUANGXI NEW ORIENTATION CHEM IND

Ecological fertilizer, preparation method, and application of ecological fertilizer in agricultural or forestry production

The present invention discloses an ecological fertilizer, a preparation method of the ecological fertilizer, and an application of the ecological fertilizer in agricultural or forestry production, and belongs to the fields of agriculture and forestry. According to the present invention, the ecological fertilizer adopts raw fertilizer as the core, an organic coating liquid, plant probiotics, medium element additives and microelement additives are coated on the outer of the core. Compared to the prior art, with the ecological fertilizer provided by the present invention, according to different nutrient requirements of crops in different growth stages, a lot of nutrients can be long-acting and balancedly provided for the crops, the sensitive medium elements and the microelements are added to the special products of different crops, and the generations of the nutritional deficiency symptoms of plants, vegetables and other crops can be controlled.
Owner:WIN WIN GROUP

Chinese herbal medicine additive for pig feed

The invention discloses a Chinese herbal medicine additive for a pig feed. The Chinese herbal medicine additive consists of the following materials in parts by weight: 1-3 parts of allicin, 0.5-1.5 parts of licorice, 4-6 parts of fish bone meal, 1-3 parts of hawthorns, 1-3 parts of tangerine peel, 0.5-1.5 parts of zizyphus jujube kernels, 2-5 parts of cortex phellodendri bark, 1-4 parts of dandelion, 5-8 parts of pine needle powder, 0.3-0.8 part of codonopsis pilosula, 1-1.5 parts of wormwood and 6-9 parts of purslane. The Chinese herbal medicine additive disclosed by the invention is prepared from pure traditional Chinese medicine components, does not contain chemical hormones, does not have toxic or side effects, contains various amino acids, vitamins and trace elements necessary for the nutrition of live pigs, and can sufficiently supplement nutritional deficiencies of traditional feeds used for raising the pigs, reduce diseases, repel insects, and prevent intestinal and respiratory diseases, so that the survival rate is increased.
Owner:ZHANGJIAGANG TAOYUAN FOOD

Mineralized soda water

The invention relates to mineralized soda water; the soda water is manufactured by utilizing modern production process to add calcium, zinc, selenium and other micronutrients to purification water from treated tap water through scientific compatibility, according to actual needed daily amount of micronutrients for human body; through strengthening calcium, zinc, selenium, the purpose of supplementing, preventing and treating various nutritional deficiency diseases is achieved, meanwhile, the purpose of prevention first is also achieved. The mineral soda water is popular drink which is suitable for people with hyperacidity, high blood glucose, high blood lipid, and drinkers, and has unique characteristic and flavor, and is natural health drink for male and female for all ages.
Owner:URUMCHI GUDEYA TECH DEV

Traditional Chinese medicine compound feed for egg producing duck in egg producing period and preparation method thereof

The invention discloses a traditional Chinese medicine compound feed for egg producing duck in egg producing period and a preparation method thereof. The feed mainly comprises the following raw materials: 40-50 parts of corn, 5-7 parts of broken rice, 9-11 parts of Alternanthera philoxeroides, 4-6 parts of wild amaranth, 2-4 parts of Kyllinga brevifolia, 1-2 parts of Hericium erinaceus, 2-4 parts of polypeptide biological blood meal, 1-3 parts of forsythia flower, 0.8-1.2 parts of spirulina, 2-4 parts of green tea mustard, 15-25 parts of red dates, 12-15 parts of shrimp shell, 1-3 parts of distiller's grains, 2-4 parts of Chinese redbud, 5-7 parts of Petasites tatewakianus Kitam, 4-6 parts of bamboo charcoal, 3-5 parts of locust tree leaves, 1-3 parts of Boehmeria nivea, 2-3 parts of Polygonum chinense toothed burclover, 0.8-1.2 parts of Paederia scandens, 25-30 parts of Nephrolepis biserrata bean and 2-4 parts of luffa vine. The compound feed provided by the invention can maintain normal life activities of egg producing ducks, enhance immunity, disease resistance and stress resistance, prevent nutritional deficiency, reduce feed consumption, and improve the egg producing rate; at the same time, Boehmeria nivea, Polygonum chinense toothed burclover and Paederia scandens have detoxifying effect; and the spirulina and green tea mustard have obvious yield-increasing effect.
Owner:合肥市益农养殖有限公司

Composite functional traditional Chinese medicine additive and preparation method thereof

The invention relates to a composite vitamin functional additive and a preparation method thereof, and belongs to the technical field of cultivation nutrition and prevention and treatment of diseases. The additive is prepared from ginseng polysugar, lentinan, various functional vitamins (including fat-soluble vitamin and water-soluble vitamin), amino acid and Chinese herb extract. The preparation method includes the steps that the extracted ginseng polysugar and the lentinan are added into a composite vitamin premix compound for beasts and birds to be mixed; the ginseng polysugar accounts for 8%-10% of the composite vitamin premix compound for beasts and birds, the lentinan accounts for 5% of the composite vitamin premix compound for beasts and birds, and the vitamin mixture accounts for 85%-87% of the composite vitamin premix compound for beasts and birds. By the adoption of the additive, the feed intake and the daily adding weight of beasts and birds can be effectively increased, the vital movement of beasts and birds is maintained, the immunity, disease resistance and anti-stress capacity are improved, nutritional deficiency diseases are prevented, feed consumption is reduced, toxic and side effects are avoided, no adverse effect on the environment is caused, and the utilization rate of the raw materials is greatly increased.
Owner:GUANGDONG ZHONGNONGLIAN BIOLOGICAL PHARMCO

Culture method for plant seedlings

The invention relates to a culture method for plant seedlings. The plant seedlings are cultured by a ventilated root division culture device, the side surfaces of two culture bowls of the device are in butt joint, a cover plate and a culture plate are arranged on the two culture bowls, culture holes are formed in the culture plate, and vent holes are formed in the two sides of the culture holes. The culture method comprises the followings steps: the plant seedlings of 3 days are taken and cultured in a Hoagland's nutrient solution with the concentration of 50 percent for 2 days then in a Hoagland's nutrient solution with the concentration of 100 percent for 12 days, the plant seedlings growing consistently are taken, the stems of the plant seedlings are wrapped by nutrient cotton and fixed in the culture holes of the culture plate, the roots of the plant seedlings are divided into a group A and a group B, the group A is put into the culture bowl containing the Hoagland's nutrient solution, and the group B is put into the culture bowl containing a nutritional deficiency nutrient solution; the pH values of the nutrient solutions are regulated to 6 at 8 o'clock in the morning and 15 o'clock in the afternoon; the nutrient solutions are changed every other three days; and after 4-12 days, the plant seedlings are taken out. The operation is simple, and the personal errors are reduced, so that the research result is more accurate, the culture time is saved, and the working efficiency is improved.
Owner:HENAN UNIV OF SCI & TECH

High-calorie nutritional supplement

The invention provides a nutritional supplement comprising a protein source including milk protein isolate and / or canola plant protein, as well as related methods for its production and use in treating a nutritional deficiency in an individual.
Owner:NESTEC SA

Microelement fertilizer for preventing and treating microelement deficiency physiological disease of eucalyptus

InactiveCN1475466AIncrease the volume of a single plantVolume increase per plantNutritional deficiencyPhysiology
A trace element fertilizer for preventing and treating the nutritional deficiency diseases of eucalyptus contains B (0-11 mass%), Cu (0-11), Zn (0-14), Mn (0-16), Fe (0-12) and Mo (0-6).
Owner:GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI

Forage for hen

The invention provides a forage for hen, consisting of peach seed powder, soybean powder, corn powder, green vegetable powder, ligusticum wallichii powder, peach leaf powder, vitamin A, vitamin B, prepared rehmannia root powder, pine needle powder, monthly rose powder, pork liver powder, salt, dandelion powder, coptis chinensis franch powder, liquorice powder, cockscomb powder, leonurus powder and honeysuckle powder, wherein the percentage is weight percentage. The forage is low in cost, easy for burdening, simple in prescription and preparation method, and good in breeding effect. The bred hen is shining in hair color, bright-colored in hair color, large in size, healthy in body, and low in morbidity. The defects that natural resources are wasted, a pheasantry is polluted, and the growing development and the nutrient requirement of the hen are not achieved since various nutrient requirements of the hen are lack of a certain experience and the hen is slow in growth and development, low in egg production and easy to infect various infectious diseases caused by the nutritional deficiency can be effectively overcome.
Owner:李晓云

Preparation method of guinea fowl feed

The invention provides a preparation method of a guinea fowl feed, which is composed of the following components in parts by weight: sorghum flour, soybean leaf powder, vegetable bud powder, sweet potato protein powder, yellow mealworm powder, apple powder, green vegetable powder, corn leaf powder, lotus leaf powder, rape powder, vitamin A, pine needle powder, white sugar powder, licorice powder, chrysanthemum powder, malt powder, red jujube powder and hawthorn powder; the guinea fowls raised by the feed grow and develop fast and body types are robust and beautiful; the guinea fowls raised by the feed are big and strong and the morbidity thereof is low; and the guinea fowl feed effectively overcomes the defects of early-stage molting, less pecking, slow growth and development, small stature, light weight, less activity amount, poor palatable performance, high risk of suffering various infectious diseases and easy death of serious cases, which are caused by nutritional deficiency of the traditional feed.
Owner:刘学顺

Functional organic nutrient solution for plants and preparation method of functional organic nutrient solution

A functional organic nutrient solution for plants contains biological organic nutrients prepared from biochemical fulvic acid, compound amino acid and a molasses liquid by mixed fermentation, whereinthe biological organic nutrients contain biochemical fulvic acid, sucrose, reducing sugar, water-soluble protein, soluble gum and other carbohydrates, as well as citric acid, malic acid, succinic acidand amino acid; the content of the biological organic nutrients in the nutrient solution is 350 g / L or higher. The functional organic nutrient solution for the plants contains both plant organic matter and animal organic matter, is comprehensive in nutrition, meets demands of crops for the organic matter, contains comprehensive nutrients and can supplement different crops with needed nutrients indifferent crop growth stages, so that diseases of crops due to nutritional deficiency are prevented, disease resistance of the crops is improved, crop quality is improved, yield is increased, meanwhile, soil nutrients can be supplemented, and soil hardening and acidification are prevented.
Owner:INST OF CHEM CHINESE ACAD OF SCI +1

A kind of preparation method of black-bone chicken feed

A preparation method of black-bone chicken feed, which is composed of: corn flour, bran powder, bean cake powder, apple powder, bitter gourd powder, pine needle powder, pineapple powder, pumpkin powder, loofah powder, garlic powder, hawthorn powder, salt, almond powder , walnut powder, safflower powder, asparagus powder, bellflower powder, malt powder, tangerine peel powder, and the percentages described are percentages by weight; effectively overcome some breeders and large-scale breeding farms when black-bone chickens are raised due to lack of nutrition. Pecking hair, dull coat color, slow growth, small size, light weight, loose feathers, less activity, easy to get sick, easy to die.
Owner:刘学顺

Cistanche inoculation method

ActiveCN104012275AEfficient Inoculation Mature MethodEasy Inoculation Ripening MethodHorticultureNutritional deficiencyNutrition
The invention provides a cistanche inoculation method. The method includes the steps that an inoculation nutrition plate is evenly coated with cistanche seeds, in a cistanche inoculation season, the inoculation nutrition plate is vertically placed in the position 60-100 cm deep on one side of the sunny side of a host, or the inoculation nutrition plate and the host are jointly vertically placed, then the inoculation nutrition plate and the host are covered with soil and watered. By the adoption of the method, the bottleneck problems of seed waste in conventional broadcast sowing, severe insect attack, plantinnutrition and the like are solved, the contact probability of the cistanche seeds and haloxylon roots of the host is increased, inoculation efficiency is greatly improved, cost is reduced, and a new, effective and practical solution is provided for the problems that the inoculation rate is low and inoculation cost is high in the cistanche inoculation process throughout the year.
Owner:甘肃省农业科学院作物研究所

A genetic transformation method mediated by Agrobacterium tumefaciens with Aspergillus flavus mycelium as receptor

The invention discloses a genetic transformation method mediated by Agrobacterium tumefaciens with Aspergillus flavus mycelium as a receptor, belonging to the field of microbiology. The method comprises the following steps: the divalent vector pAg1-H3 is digested to remove the hygromycin resistance gene fragment, and ligated with the target fragment containing the pyrithione resistance gene ptrA derived from Aspergillus oryzae to construct a pAg1-Pt binary vector; the binary vector pAg1-Pt plasmid is transformed into Agrobacterium tumefaciens to obtain Agrobacterium tumefaciens positive transformant and prepare bacterial liquid; Aspergillus flavus mycelium homogenate is prepared; Aspergillus flavus is transformed by co-culturing the prepared mycelium and mycelium homogenate; selective culture is performed, Aspergillus flavus transformants are screened and positive clones are identified. As the mycelium of Aspergillus flavus is used as the transformation acceptor, the transformation efficiency is high and stable without the restriction of the sporulation ability of the Aspergillus flavus strain, and the method is applicable to Aspergillus flavus strains with different genetic background and nutritional deficiencies.
Owner:FUJIAN AGRI & FORESTRY UNIV

Phyllostachys pubescens seedling cultivation method

ActiveCN107278851ASolve the experimental problem of infecting plants and even growing green algaeNo growthCalcareous fertilisersMagnesium fertilisersNutritional deficiencySterile water
The invention relates to a phyllostachys pubescens seedling cultivation method. The method includes seed soaking for germination acceleration, peeling, sterilizing, sowing, sterile water culture of seedlings. The phyllostachys pubescens seedling cultivation method can be used for industrial phyllostachys pubescens seedling production, and sowing and germination are free of season limitation; by means of water culture of phyllostachys pubescens seedlings, root system growth conditions can be observed in real time; by combination with techniques of isotope labeling and the like, the method can be used for constructing technical platforms for root system mineral element absorption and transferring, nutritional deficiency, heavy metal stress or the like. The phyllostachys pubescens seedling cultivation method has advantages that problems of low germination rate and influences on seed germination and seedling formation due to serious pollution in the prior art and the problem of plant infection and even formation of green algae due to fast germ propagation in a nutrient solution culture process are solved, the vermiculite sowing germination rate reaches 60% or above, the pollution rate is 0 in germination and water culture processes, and alga growth is avoided; in addition, the method is simple in operation, high in practicality and worthy of popularization.
Owner:JIANGXI AGRICULTURAL UNIVERSITY

Method for preparing golden retriever feed

The invention discloses a method for preparing a golden retriever feed. The golden retriever feed comprises the following components in percent by weight: soya bean protein powder, barley protein powder, chicken powder, beef powder, pork chop powder, sheep lung powder, white fish powder, rice paperiant pith powder, gemma agrimoninae powder, cordate houttuynia powder, manyflower gueldenstaedtid herb powder, prunella vulgaris powder and asarum powder. The golden retriever feed prepared according to the method provided by the invention is low in cost, easy to take ingredients, simple in formula and preparation method, and good in feeding effect; and golden retrievers fed by the golden retriever feed prepared according to the method provided by the invention have the characteristics of bright hair color, large size, strong body and low morbidity, therefore the defects of low growth and development speed, lusterless hair color, small size, light weight, dislike of activities, loose hair and easiness for suffering from various types of infectious diseases of the golden retrievers, caused by nutritional deficiency owing to unreasonable feeding and proportioning of some feeders and some feedlots, are effectively solved.
Owner:谢长城

Genetic engineering bacterium for producing L-isoleucine and application thereof

ActiveCN110305829AReduced activityNo nutritional deficienciesCarbon-nitrogen lyasesBacteriaAcetohydroxy Acid SynthetaseNutritional deficiency
The invention relates to a genetic engineering bacterium for producing L-isoleucine and an application thereof, which belong to the field of metabolic engineering. The genetic engineering bacterium isobtained by overexpressing an acetohydroxyacidsynthase encoding gene ilvBN<M>, a threonine dehydratase encoding gene ilvA, and a threonine operon thrABC releasing feedback inhibition of L-isoleucine,the acetohydroxyacidsynthase encoded by ilvBN<M> releases the feedback inhibition of L-isoleucine, and its activity is not significantly lower than that of the wild-type ilvBN-encoded acetohydroxyacidsynthase; The L-isoleucine genetic engineering bacterium of the invention has no nutritional deficiency, rapid growth, short fermentation cycle, high yield and high conversion rate, and after 26-36hfermentation, the concentration of L-isoleucine in a fermentation broth reaches 42.5-51.6g / L.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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