72 results about "Jerusalem artichoke" patented technology

The invention discloses a method for producing bacillus velezensis through solid-state fermentation of distiller's grains, and belongs to the technical field of fermentation engineering. The preparation method comprises the following steps: carrying out acid-base modification, enzymolysis and stacking fermentation treatment on white spirit vinasse, adding bran and jerusalem artichoke powder, carrying out steam explosion, and adding corn steep liquor dry powder, urea and other substances to prepare a white spirit vinasse culture medium; and carrying out amplification culture on the bacillus velezensis subjected to activation and seed culture by using a white spirit vinasse culture medium, drying and collecting the bacillus velezensis. Experimental results show that the bacillus velezensis can be efficiently produced by utilizing the fermentation method provided by the invention, and the spore number of the bacillus velezensis is as high as 9.2 * 10 < 10 > cfu / g. The technical method for producing bacillus velezensis through fermentation effectively solves the problem of resource utilization of white spirit vinasse and the problems of high cost and sewage in the liquid fermentation process, and is low in fermentation cost and suitable for industrial production.

The invention belongs to the technical field of physical and chemical index prediction of jerusalem artichoke, and particularly relates to a method for rapidly predicting main physical and chemical indexes in jerusalem artichoke based on a near infrared spectrum technology. The method mainly comprises the steps of pretreatment of a jerusalem artichoke sample, acquisition of physicochemical indexes and spectral data, pretreatment of the spectral data, screening of characteristic wave bands, establishment of a quantitative prediction model, evaluation and verification of model performance and the like. According to the invention, a partial least squares regression (PLSR) model of inulin, protein, total polyphenol and ash content in jerusalem artichoke is established, and an external verification result of the model shows that detection results obtained by a near infrared spectrum and a standard chemical method have no significant difference. Compared with a traditional chemical detection method, the near-infrared technology improves the analysis efficiency and reduces the detection cost on the basis of meeting basic detection requirements, and has an application prospect in rapid prediction of the physical and chemical indexes of the jerusalem artichoke in actual production.

The invention relates to a probiotic fermented fruit and vegetable juice beverage and a preparation method thereof, and belongs to the technical field of food. The invention provides a preparation method of a probiotic fermented fruit and vegetable juice beverage, which mainly comprises the following steps: mixing fruit and vegetable raw materials with deionized water, homogenizing at high pressure, adding polydextrose and resistant starch, stirring for dissolving, sieving, adjusting the pH value, adding pectinase and cellulase, performing enzymolysis, inoculating compound bacteria into enzymatic hydrolysate, performing two-stage fermentation, and obtaining the probiotic fermented fruit and vegetable juice beverage. And adding a fructus momordicae extract into the obtained fermentation liquor, sieving, carrying out pasteurization, immediately cooling to 4 DEG C, filtering, and carrying out sterile filling, thereby obtaining the fructus momordicae health-care wine. The apple, the kale, the jerusalem artichoke, the mandarin orange, the momordica grosvenori extract and the like are compounded to provide multiple trace element supplementation for a human body, lactic acid and short-chain fatty acid are generated in the synergistic double-bacterium fermentation process, and intestinal tract movement is effectively promoted.

The invention relates to the technical field of jerusalem artichoke breeding and planting, and discloses a jerusalem artichoke variety breeding and planting method and system. The method comprises the following steps: collecting phenotype data of jerusalem artichoke plants at different growth stages Constructing a multi-dimensional growth model containing an incidence relation between environmental factors and phenotypic data, wherein the environmental factors are obtained by monitoring a planting area sensor array in real time; screening candidate jerusalem artichoke strains in the target environment parameter interval based on the phenotype-environment response curve; hybridizing and matching the candidate strains to obtain filial generation seeds, and sowing the filial generation seeds in a controllable environment test field; extracting gene expression profile data of offspring seeds, and establishing a genotype-phenotype incidence matrix in combination with the response curve; transplanting the dominant group to a field, and collecting growth dynamic data to update the multi-dimensional growth model; an environment control strategy is adjusted according to the updated model, and dominant groups are directionally cultivated; tubers are harvested and subjected to quality detection, and the result is fed back to the incidence matrix to optimize the next breeding process.

The present invention provides an apricot forest tea meal with effects of assisting in lowering three highs and a preparation method thereof, and relates to the field of food, the apricot forest tea meal comprises the following raw materials: a component I: 1000 parts of Chinese yam, 100 parts of jerusalem artichoke, 200 parts of radix puerariae, 10 parts of tricholoma matsutake, 50 parts of onion powder, and 10 parts of low-sugar dry yeast; component II: 2000 parts of bitter gourd, 200 parts of jerusalem artichoke, 50 parts of endothelium corneum gigeriae galli, 50 parts of lotus root, 30 parts of stevia rebaudiana, 20 parts of tricholoma matsutake and 20 parts A component III: 50 parts of Adenophora stricta, 100 parts of Jerusalem artichoke, 200 parts of hulless oat, 1000 parts of radish and 10 parts of low-sugar dry yeast; component IV: 1000 parts of asparagus, 1000 parts of okra, 1000 parts of towel gourd, 1000 parts of small bamboo shoot, 1000 parts of lotus root, 1000 parts of garlic sprout, 1000 parts of kelp, 1000 parts of banana-plant, 1000 parts of radish and 1000 parts of green Chinese onion The traditional Chinese medicine is taken as the root, diet is taken as the basis, and aiming at the characteristics of diabetes, lung, spleen and kidney deficiency, yin deficiency and internal heat, three more and one less, and the like, according to the traditional Chinese medicine dialectical diet treatment, monarch, minister, assistant and guide formula rule, the traditional Chinese medicine is aimed at lowering hyperglycemia, hypertension and hyperlipidemia.

The invention relates to a stabilized fertilizer containing antibacterial peptide and a preparation method thereof, the stabilized fertilizer containing antibacterial peptide is characterized by containing jerusalem artichoke antibacterial peptide; the jerusalem artichoke antibacterial peptide is a product obtained after jerusalem artichoke residues are subjected to enzymolysis. The enzymolysis is protease enzymolysis; the protease is acid protease or alkaline protease. The antibacterial peptide-containing fertilizer prepared by the invention can meet the requirement of a stable fertilizer without additionally adding a nitrification inhibitor or a urease inhibitor.

1. Name of the Design Product: Packaging Box (Pan Hongxin's Honey Jerusalem Artichoke). 2. Use of the Design Product: For the outer packaging of products. 3. Design Key Points of the Design Product: Lies in the combination of shape, pattern and color. 4. Picture or Photo that Best Illustrates the Design Key Points: Front View. 5. The claimed design includes color.

The utility model relates to the technical field of jerusalem artichoke collection, and discloses a jerusalem artichoke rhizome lossless collection device which comprises a supporting plate, the rear side of the supporting plate is fixedly connected with two L-shaped plates, a U-shaped plate is fixedly connected between the two L-shaped plates, one side of the L-shaped plate on the right side is fixedly connected with a square plate, one side of the square plate is fixedly connected with a second air cylinder, and the other side of the square plate is fixedly connected with a third air cylinder. And the output end of the second air cylinder is fixedly connected with a moving plate, the top of the moving plate is fixedly connected with a rack, the bottom of the rack is in meshed connection with evenly-distributed gears, and one side of each gear penetrates through the L-shaped plate and is fixedly connected with a rotating shaft. According to the jerusalem artichoke collecting device, a second motor is started to drive an eccentric wheel to rotate, a square frame drives rolling wheels to shake under limiting of a connecting plate, meanwhile, a second air cylinder is started to drive a movable plate and a rack to move, a rubber rod rotates to scrape off soil adhering to the surface of jerusalem artichoke, the soil cleaning efficiency is improved, and the collecting effect is good.

The invention discloses a preparation method of a medicinal and edible plant composition with a synergistic hypoglycemic effect, and relates to the technical field of preparation of medicinal and edible health products. The method comprises the following steps: step a, crushing jerusalem artichoke, bitter gourd and Chinese waxgourd peel according to a mass ratio of 1: (0.5-2): (0.5-1.5) until the particle size is 0.2-0.5 mm, performing cold soaking at 4-10 DEG C for 48-72 hours, and performing filtering to obtain a water-soluble component filtrate; step b, adding cellulase (the enzyme activity is greater than or equal to 10000 U / g) which accounts for 0.1-0.3% of the mass of the raw materials into the residues in the step a; according to the method, multi-process combined extraction is carried out, specifically, heat-sensitive components such as momordica saponins are reserved through cold extraction (4-10 DEG C), fat-soluble components are extracted through supercritical extraction, cell membranes are damaged through high-temperature transduction to release cinnamyl aldehyde, the synanthrin decomposition rate reaches 75% through the enzymolysis technology, the quercetin conversion rate is larger than or equal to 90%, and the quercetin content is larger than or equal to 30% through the enzymolysis technology. According to the invention, four mechanisms, namely alpha-glycosidase inhibition, insulin sensitization, oxidation resistance and GLUT4 transport promotion, are used for synergistically reducing blood glucose, the blood glucose reducing effect is remarkable, the absorption rate of fat-soluble components is increased by 2 times by the nano-emulsion, and the in-vivo half-life period of the balsam pear saponin is prolonged to 6.5 hours by the lipidosome.

The invention discloses a functional beverage based on a jerusalem artichoke component and a preparation method thereof, and belongs to the technical field of functional beverages, and the functional beverage is prepared from the following raw materials in parts by weight: 90-110 parts of jerusalem artichoke, 40-60 parts of bitter gourd, 20-40 parts of hawthorn, 40-60 parts of celery stem, 0.5-1.5 parts of ground cinnamon, 2-4 parts of sugar substitute and 300-500 parts of water. The inulin delays glucose absorption, the balsam pear glycoside promotes sugar utilization, the cinnamon polyphenol enhances insulin sensitivity to achieve sugar metabolism regulation, the jerusalem artichoke short-chain fatty acid inhibits liver cholesterol synthesis, and the hawthorn flavone promotes lipid decomposition to achieve lipid metabolism improvement. The celery potassium-sodium pump is balanced, and the inulin reduces the activity of angiotensin converting enzyme to regulate the blood pressure, so that the functional beverage can regulate the three highs.

The invention belongs to the technical field of agriculture, and particularly relates to a special microbial compound fertilizer for jerusalem artichoke and a preparation method thereof. The special microbial compound fertilizer for jerusalem artichoke comprises the following raw materials in parts by weight: 80-85 parts of organic fertilizer, 3-5 parts of beneficial microbial agent, 4-6 parts of nitrogen fertilizer, 4-5 parts of phosphate fertilizer and 3-8 parts of potash fertilizer. The preparation method comprises the following steps: premixing an organic fertilizer, a nitrogen fertilizer, a phosphorus fertilizer and a potassium fertilizer to obtain a premixed base material; and adding a beneficial microbial agent into the premixed base material, and mixing to obtain the special microbial compound fertilizer for jerusalem artichoke. The invention aims to solve the technical problems that in the prior art, the fertilizer for planting jerusalem artichoke is unbalanced in nutrient, the product safety is influenced by excessive application easily caused by self proportioning of chemical fertilizer by farmers, and the fertilizer efficiency is poor due to neglect of soil micro-ecological improvement.

The invention discloses a jerusalem artichoke composition for relieving asthenopia and application thereof. Comprising 40-60 parts of jerusalem artichoke leaf and jerusalem artichoke peel mixed extract and 10-15 parts of inulin. The jerusalem artichoke leaf and jerusalem artichoke peel mixed extract is obtained by extracting functional components through enzymolysis, microwave and other processes. The invention further provides a product for relieving asthenopia. The product comprises 40-60 parts of jerusalem artichoke leaf and jerusalem artichoke peel mixed extract, 10-15 parts of inulin, 0.5-1 part of angelica sinensis powder, 0.2-0.6 part of safflower powder, 6-10 parts of Borojo powder and 6-10 parts of green plum powder. The jerusalem artichoke leaves and the jerusalem artichoke barks are used as raw materials and are combined with the inulin to be used as the composition for relieving asthenopia, and the composition is safe, free of toxic and side effects and capable of effectively maintaining the moist ocular surface, adjusting the contraction and relaxation capacity of ciliary muscles and adjusting intestinal flora; the asthenopia problems such as dry eyes, photophobia and aching pain can be effectively relieved.

The invention relates to the field of hyperlipidemia, hypertension and hyperglycemia treatment, in particular to a preparation method of blood-pressure-lowering lipid-lowering blood-sugar-balancing immune powder. Step 2, pretreating kidney beans; step 3, pretreatment of purslane; step 4, pretreating jerusalem artichoke; step 5, drying; step 6, grinding; step seven, pulping; step 8, performing homogenizing treatment; step 9, spraying and drying; step 10, cooling; three natural food materials of the kidney beans, the purslane and the jerusalem artichoke are scientifically proportioned through scientific pretreatment, fine grinding, efficient homogenization and advanced spray drying technologies and are converted into the functional food with remarkable health benefits, the blood glucose reducing effect of the kidney beans and the blood lipid reducing effect of the purslane supplement each other, dietary fibers of the jerusalem artichoke further promote intestinal health, and the health-care effect of the kidney beans is improved. Compared with a traditional processing method, the method has the advantages that the retention rate of nutritional ingredients is remarkably increased, and an efficient and safe health management choice is provided for consumers.

The invention relates to the technical field of beverages, and discloses an instant vegetable beverage containing vegetable protein and dietary fiber and a processing technology thereof, and the processing technology comprises the steps of raw material pretreatment, grinding, sugar melting, blending, high-pressure homogenization, filling, sterilization, heat storage treatment, boxing and the like. The jerusalem artichoke-based functional polysaccharide liquid-state extraction and steady-state maintenance technology is combined with the vegetable protein liquid-state compounding synergistic technology, so that the liquid-state synergistic application of the wheat germs and the jerusalem artichoke is realized, and the problems that a traditional germ product is easy to oxidize and low in nutrition utilization rate are solved; the instant plant beverage product which contains plant proteins and dietary fibers and is good in stability and long in shelf life is obtained.

The invention belongs to the field of jerusalem artichoke tea, and particularly relates to a preparation method of jerusalem artichoke tea, which comprises the following steps: S1, before cleaning, soaking jerusalem artichoke in 5% saline water for 2 hours to remove earthy smell and surface impurities and improve the purity, and then cleaning with water meeting the drinking standard; s2, after cleaning, pesticide residues are sampled and detected through a spectrum detection technology; s3, after the product is detected to be qualified, paving the product on a breathable grid and draining; the temperature is controlled to be 20-75 DEG C for drying, the humidity is controlled to be 60% or below, the jerusalem artichoke is soaked with 5% saline water for 2 hours before cleaning, earthy smell and surface impurities are removed, and the purity is improved; pesticide residues are sampled and detected through a spectrum detection technology, uniform internal and external drying is ensured through segmented temperature control drying, the mildew risk can be predicted and alarmed by analyzing the color and brittleness of dried jerusalem artichoke, comparing with a standard spectrum library, automatically grading and immediately removing unqualified products, and the quality of the jerusalem artichoke tea is improved.

The invention discloses comprehensive cereal enzyme powder and a preparation method thereof, and belongs to the technical field of functional food processing. The comprehensive cereal enzyme powder provided by the invention is prepared from the following components in parts by mass: 40-60 parts of a cereal group, 10-30 parts of a berry group and 20-35 parts of a rhizome group, the cereal group comprises germinated brown rice, highland barley and chickpeas; the berry group comprises blueberry pomace and red pitaya peel; the rhizome group comprises purple carrots and jerusalem artichoke powder. Through raw material three-dimensional compounding, strain time sequence control (Aspergillus niger-Kluyveromyces marxianus-Lactobacillus acidophilus) and a low-temperature activity protection process, the core problems of single function, poor stability, low process suitability and the like of the existing enzyme product are solved, and the enzyme has a wide application prospect.

A composition is claimed to support the human immune system, which is particularly suitable for use as a food supplement and contains juice concentrates, fruit purees and / or extracts from acerola fruits and vegetables selected from apple, sour cherry, cranberry, aronia, acerola, pomegranate, rosehip, papaya, ginger, beetroot, barley grass, ginkgo, moringa, green spirulina, shatavari, blue spirulina, red spirulina, goji, ashwagandha, ginseng, kale, Jerusalem artichoke, acai, matcha, sweet fennel, yam, turmeric, artichoke, chicory. Contains dandelion leaves, green tea, baobab, astragalus, schisandra, alfalfa, nettle leaves, guarana, broccoli, chestnut, chlorella, amaranth, psyllium husks, sage, lemongrass, damiana, gotu kola, chickpea, camu camu, chaga, raspberry, cinnamon, reishi, grape seed and any mixtures of the above, as well as 3 to 10% inulin as dietary fiber. The components are selected in such a way that their effects are optimally coordinated and the interaction of the components has a positive overall effect on the overall constitution.

The present invention relates to a composition for significantly improving gastrointestinal function and preventing and treating constipation and its use. The composition contains soybean oligosaccharide and Jerusalem artichoke inulin. The research of the inventors shows that the composition of the present invention can effectively improve gastrointestinal function when applied to drugs or health products, and has a good effect of moistening the intestines and relieving constipation. The raw material composition of the present invention is simple, reasonable, the ingredients are natural, it is convenient to take, has high safety, no toxic and side effects, no adverse reactions, and will not produce dependence, and is suitable for constipation patients to take.

The invention discloses an application of a jerusalem artichoke tuber alcohol extract in preparation of a medicine for treating type 2 diabetes mellitus, and belongs to the technical field of medicines, the chemical components of the jerusalem artichoke tuber alcohol extract are mainly flavonoid substances, and the jerusalem artichoke tuber alcohol extract can remarkably recover the weight of a mouse with the type 2 diabetes mellitus and improve glucose metabolism indexes such as fasting blood-glucose and oral glucose tolerance; meanwhile, insulin sensitivity is stimulated to secrete insulin, and the functions of pancreatic beta cells are recovered; in addition, the concentration of biochemical indexes such as total cholesterol and triglyceride in the liver is reduced, lipid metabolism of the liver is improved, and a new direction is provided for research and development of natural plant source hypoglycemic products.

The utility model discloses a jerusalem artichoke powder purification device, which belongs to the technical field of jerusalem artichoke inulin, and is characterized by comprising a treatment box, feeding holes are formed in two sides of the top of the treatment box, and a fragmentation component is arranged in the treatment box; a beating cylinder, a crushing rod, a spiral stirring and conveying blade and a shaft rod are driven by a motor in the crushing assembly to operate at the same time, the crushing rod can preliminarily crush jerusalem artichoke powder raw materials which are different in hardness and size and enter the treatment box from a feeding opening, the situation of insufficient crushing is effectively avoided, a foundation is laid for subsequent fine treatment, and the production efficiency is improved. Then the spiral stirring and conveying blade stably and continuously rotates to convey the crushed materials, then the materials subjected to preliminary crushing and conveying are finely crushed at the top of the leakage net through the crushing cutter on the outer side of the shaft rod, and the materials are further cut and ground through high-speed rotation of the crushing cutter, so that the material particles are finer; and the whole device is compact in structural design and high in linkage.

1. The name of this design product: Packaging Box (Red Oil and Black Jerusalem Artichoke). 2. Purpose of this design product: for packaging. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view.

1. Name of the Design Product: Packaging Box (Pan Hongxin's Jerusalem Artichoke). 2. Use of the Design Product: For the outer packaging of products. 3. Design Key Points of the Design Product: Lies in the combination of shape, pattern and color. 4. Picture or Photo Most Indicating the Design Key Points: Front View. 5. The claimed design includes color.

The invention discloses an organic selenium composition, a preparation method and application of the organic selenium composition in preparation of antitumor drugs, and belongs to the technical field of enzyme-containing preparations, the preparation method comprises five steps of carrier activation, immobilization of double enzymes, immobilization of a third enzyme, in-situ synthesis and separation and purification; aminated mesoporous silica nanoparticles are used as a carrier, selenocysteine beta-lyase, UDP-glucosyltransferase and glucose dehydrogenase are immobilized through glutaraldehyde crosslinking, an immobilized three-enzyme system is constructed, and organic selenium is synthesized in situ by catalyzing substrates such as jerusalem artichoke polysaccharide and selenocysteine in a nitrogen atmosphere. And separating and purifying to obtain the organic selenium composition. The problems of easy enzyme inactivation, large coenzyme dosage, poor product stability and the like in the prior art are solved, and the prepared organic selenium composition is high in selenium content, concentrated in molecular weight, excellent in bioavailability and low in toxicity, can be used as an active component for preparing antitumor drugs, and has a good application prospect.

The invention relates to the technical field of food processing, and discloses a compound beverage based on jerusalem artichoke, synanthrin and fructus momordicae and a preparation method thereof, and the preparation method at least comprises the following steps: S1, preparing raw materials; s2, performing pretreatment; s3, blending; s4, performing homogenizing; and S5, filling and sterilizing. According to the invention, the synanthrin and the fructus momordicae are scientifically matched, so that the beverage is endowed with good taste, the calorie of the beverage is greatly reduced, the beverage is extremely attractive to people who pay attention to healthy lifestyles, and health risks caused by excessive calorie intake can be effectively avoided while the people enjoy the delicious beverage; the fructus momordicae is rich in various beneficial ingredients and has the effects of clearing heat, moistening the lung, relieving sore-throat, opening voice, lubricating the intestines, relaxing the bowels and the like, so that the health value of the beverage is further improved.

The invention belongs to the technical field of fermented feed, and relates to fermented feed for promoting intestinal health of beef cattle and a preparation method of the fermented feed. Step 2, pre-enzymolysis of soybean meal; step 3, extracting active ingredients of the fresh jerusalem artichoke; step 4, performing double-layer embedding on the tea polyphenol; step five, carrying out mixed fermentation on the pre-enzymolysis basal feed, the pre-enzymolysis soybean meal, the jerusalem artichoke powder extract, the tea polyphenol microcapsules, the molasses and the compound bacterium powder; the key problems of incomplete enzymolysis, single strain function, inactivation of active ingredients, extensive parameter control and the like in the existing fermented feed are systematically solved through core technologies such as multi-stage enzymolysis, complex flora compatibility, active ingredient microencapsulation, dynamic fermentation regulation and the like.

The invention relates to a method for increasing the content of synanthrin in jerusalem artichoke based on a solid-state fermentation technology. The fermented jerusalem artichoke product is obtained through the steps of cleaning and slicing fresh jerusalem artichoke, air-drying, spraying wine, adding salt, uniformly stirring, filling into a pottery jar, compacting and sealing an opening of the jar, fermenting and the like. According to the technology for increasing the content of the synanthrin in the jerusalem artichoke based on the solid state fermentation, the production cost and the process complexity are remarkably reduced, and the yield of the synanthrin is increased. The method for increasing the synanthrin content is simple in used equipment, low in energy consumption, green and environment-friendly in the whole process and low in environmental load, the obtained product is flexible and controllable in form, and the industrial application scene of the jerusalem artichoke synanthrin can be greatly expanded.

The utility model relates to an artificial pollination auxiliary device, in particular to a jerusalem artichoke cross breeding auxiliary pollination device which comprises a watering can, the watering can comprises a can body, a filter screen is transversely arranged in the can body, a through hole is formed in the filter screen, a water suction pipe of the watering can penetrates through the through hole, a feeding hole is further formed in the filter screen, and a round pipe is arranged in the feeding hole. The upper end of the circular pipe penetrates out of the kettle body and is communicated with the outside, the circular pipe is closed through a valve, the lower end of the circular pipe is located below the filter screen, and the portion of the circular pipe penetrating out of the kettle body is sealed. According to the application, the distance from pollen to the water inlet end of the water suction pipe of the watering can can be changed through the filter screen, so that more pollen can be sprayed out along with the watering can when the watering can sprays water, and pollination of the pollen is facilitated.

This invention discloses the application of Jerusalem artichoke polysaccharide in the preparation of drugs for regulating intestinal flora, belonging to the field of intestinal flora drugs. The drugs for regulating intestinal flora use Jerusalem artichoke polysaccharide as the active ingredient. These drugs improve intestinal disorders by increasing the proliferation of beneficial intestinal bacteria and the content of short-chain fatty acids, metabolites of intestinal flora. The Jerusalem artichoke polysaccharide prepared by this invention contains uronic acid and pyranose, and is mainly composed of fructose and glucose, with an average molecular weight of 2228 Da. The preparation method of Jerusalem artichoke polysaccharide in this invention has high yield, low cost, and is suitable for industrial production.

Concrete composition based on binder, sand, gravel, water and an elongated vegetable aggregate, wherein the elongated vegetable aggregate is selected from cut stem parts of grasses, hemp, Jerusalem artichoke or flax or palm fronds and mixtures thereof, characterized in that the elongated vegetable aggregate is formed from plant stem parts with a length of 10 - 80 mm, which naturally comprise a hard, predominantly dimensionally stable bark and a compressible pith, wherein the natural volume of the pith is greater than the natural volume of the bark from which the pith has been removed, wherein the volume of the pith after removal is smaller than the volume of the bark.

The invention relates to a jerusalem artichoke straw decomposition method and a method for preparing a fertilizer from decomposed jerusalem artichoke straws, and the jerusalem artichoke straw decomposition method is characterized by comprising the following steps: crushing jerusalem artichoke straws into small segments of 0.5-1.5 cm, adding microorganisms, adjusting the water content to 60-70%, turning once every 12-24 hours, totally turning for 7-14 times, sealing and packaging the turned jerusalem artichoke straws, and storing for 40-70 days to obtain the decomposed jerusalem artichoke straws. The rotten jerusalem artichoke straw prepared by the invention is applied to preparation of fertilizer and has relatively good fertilizer efficiency.